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Schedule III (Details) (USD $) | 12 Months Ended
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Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | $ 1,033,106,000 us-gaap_RealEstateAccumulatedDepreciation |  | $ 985,244,000 us-gaap_RealEstateAccumulatedDepreciation | $ 876,446,000 us-gaap_RealEstateAccumulatedDepreciation
Real estate assets, net, held for sale | 0 hiw_RealEstateAccumulatedDepreciationAssetsHeldForSale |  | 0 hiw_RealEstateAccumulatedDepreciationAssetsHeldForSale | 0 hiw_RealEstateAccumulatedDepreciationAssetsHeldForSale
Total accumulated depreciation | 1,033,106,000 us-gaap_RealEstateInvestmentPropertyAccumulatedDepreciation |  | 985,244,000 us-gaap_RealEstateInvestmentPropertyAccumulatedDepreciation | 876,446,000 us-gaap_RealEstateInvestmentPropertyAccumulatedDepreciation
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 4,309,536,000 us-gaap_RealEstateGrossAtCarryingValue |  | 4,252,845,000 us-gaap_RealEstateGrossAtCarryingValue | 3,547,696,000 us-gaap_RealEstateGrossAtCarryingValue
Development in process exclusive of land included in Schedule III | 205,971,000 us-gaap_DevelopmentInProcess |  | 44,621,000 us-gaap_DevelopmentInProcess | 21,198,000 us-gaap_DevelopmentInProcess
Real estate assets, net, held for sale | (995,000)hiw_ReclassRelatedToRealEstateHeldForSale |  | 0 hiw_ReclassRelatedToRealEstateHeldForSale | 0 hiw_ReclassRelatedToRealEstateHeldForSale
Total real estate assets | 4,514,512,000 us-gaap_RealEstateInvestmentPropertyAtCost |  | 4,297,466,000 us-gaap_RealEstateInvestmentPropertyAtCost | 3,568,894,000 us-gaap_RealEstateInvestmentPropertyAtCost
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 4,309,536,000 us-gaap_RealEstateGrossAtCarryingValue |  | 4,252,845,000 us-gaap_RealEstateGrossAtCarryingValue | 3,547,696,000 us-gaap_RealEstateGrossAtCarryingValue
SEC Schedule III, Real Estate Accumulated Depreciation | 1,033,106,000 us-gaap_RealEstateAccumulatedDepreciation |  | 985,244,000 us-gaap_RealEstateAccumulatedDepreciation | 876,446,000 us-gaap_RealEstateAccumulatedDepreciation
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, beginning balance | 4,252,845,000 us-gaap_RealEstateGrossAtCarryingValue |  | 3,547,696,000 us-gaap_RealEstateGrossAtCarryingValue | 3,221,991,000 us-gaap_RealEstateGrossAtCarryingValue
Acquisitions, development and improvements | 282,105,000 hiw_RealEstateAcquisitionsDevelopmentAndImprovements |  | 735,183,000 hiw_RealEstateAcquisitionsDevelopmentAndImprovements | 366,556,000 hiw_RealEstateAcquisitionsDevelopmentAndImprovements
Cost of real estate sold and retired | (225,414,000)us-gaap_RealEstateCostOfRealEstateSold |  | (30,034,000)us-gaap_RealEstateCostOfRealEstateSold | (40,851,000)us-gaap_RealEstateCostOfRealEstateSold
Real estate assets, ending balance | 4,309,536,000 us-gaap_RealEstateGrossAtCarryingValue |  | 4,252,845,000 us-gaap_RealEstateGrossAtCarryingValue | 3,547,696,000 us-gaap_RealEstateGrossAtCarryingValue
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, beginning balance | 985,244,000 us-gaap_RealEstateAccumulatedDepreciation |  | 876,446,000 us-gaap_RealEstateAccumulatedDepreciation | 799,094,000 us-gaap_RealEstateAccumulatedDepreciation
Depreciation expense | 154,448,000 us-gaap_SECScheduleIIIRealEstateAccumulatedDepreciationDepreciationExpense |  | 138,163,000 us-gaap_SECScheduleIIIRealEstateAccumulatedDepreciationDepreciationExpense | 118,223,000 us-gaap_SECScheduleIIIRealEstateAccumulatedDepreciationDepreciationExpense
Real estate sold and retired | (106,586,000)us-gaap_RealEstateAccumulatedDepreciationRealEstateSold |  | (29,365,000)us-gaap_RealEstateAccumulatedDepreciationRealEstateSold | (40,871,000)us-gaap_RealEstateAccumulatedDepreciationRealEstateSold
Accumulated depreciation, ending balance | 1,033,106,000 us-gaap_RealEstateAccumulatedDepreciation |  | 985,244,000 us-gaap_RealEstateAccumulatedDepreciation | 876,446,000 us-gaap_RealEstateAccumulatedDepreciation
Atlanta, GA - 1700 Century Circle [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 780,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGa1700CenturyCircleMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 2,798,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGa1700CenturyCircleMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGa1700CenturyCircleMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 2,482,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGa1700CenturyCircleMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 2,000 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGa1700CenturyCircleMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 314,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGa1700CenturyCircleMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 2,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGa1700CenturyCircleMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 2,796,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGa1700CenturyCircleMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 2,798,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGa1700CenturyCircleMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 780,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGa1700CenturyCircleMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 2,798,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGa1700CenturyCircleMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 780,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGa1700CenturyCircleMember |  |  |
Atlanta, GA - 1700 Century Circle [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Atlanta, GA - 1700 Century Circle [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Atlanta, GA - 1800 Century Boulevard [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 21,294,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGa1800CenturyBoulevardMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 44,237,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGa1800CenturyBoulevardMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 1,444,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGa1800CenturyBoulevardMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 29,081,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGa1800CenturyBoulevardMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 0 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGa1800CenturyBoulevardMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 13,712,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGa1800CenturyBoulevardMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 1,444,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGa1800CenturyBoulevardMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 42,793,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGa1800CenturyBoulevardMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 44,237,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGa1800CenturyBoulevardMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 21,294,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGa1800CenturyBoulevardMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 44,237,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGa1800CenturyBoulevardMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 21,294,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGa1800CenturyBoulevardMember |  |  |
Atlanta, GA - 1800 Century Boulevard [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Atlanta, GA - 1800 Century Boulevard [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Atlanta, GA - 1825 Century Center [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 4,596,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGa1825CenturyCenterMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 15,570,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGa1825CenturyCenterMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 864,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGa1825CenturyCenterMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGa1825CenturyCenterMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 303,000 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGa1825CenturyCenterMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 14,403,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGa1825CenturyCenterMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 1,167,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGa1825CenturyCenterMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 14,403,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGa1825CenturyCenterMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 15,570,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGa1825CenturyCenterMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 4,596,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGa1825CenturyCenterMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 15,570,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGa1825CenturyCenterMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 4,596,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGa1825CenturyCenterMember |  |  |
Atlanta, GA - 1825 Century Center [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Atlanta, GA - 1825 Century Center [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Atlanta, GA - 1875 Century Boulevard [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 4,542,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGa1875CenturyBoulevardMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 10,199,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGa1875CenturyBoulevardMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGa1875CenturyBoulevardMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 8,924,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGa1875CenturyBoulevardMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 0 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGa1875CenturyBoulevardMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 1,275,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGa1875CenturyBoulevardMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 0 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGa1875CenturyBoulevardMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 10,199,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGa1875CenturyBoulevardMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 10,199,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGa1875CenturyBoulevardMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 4,542,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGa1875CenturyBoulevardMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 10,199,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGa1875CenturyBoulevardMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 4,542,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGa1875CenturyBoulevardMember |  |  |
Atlanta, GA - 1875 Century Boulevard [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Atlanta, GA - 1875 Century Boulevard [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Atlanta, GA - 1900 Century Boulevard [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 2,615,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGa1900CenturyBoulevardMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 5,458,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGa1900CenturyBoulevardMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGa1900CenturyBoulevardMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 4,744,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGa1900CenturyBoulevardMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 0 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGa1900CenturyBoulevardMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 714,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGa1900CenturyBoulevardMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 0 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGa1900CenturyBoulevardMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 5,458,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGa1900CenturyBoulevardMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 5,458,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGa1900CenturyBoulevardMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 2,615,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGa1900CenturyBoulevardMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 5,458,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGa1900CenturyBoulevardMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 2,615,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGa1900CenturyBoulevardMember |  |  |
Atlanta, GA - 1900 Century Boulevard [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Atlanta, GA - 1900 Century Boulevard [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Atlanta, GA - 2200 Century Parkway [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 8,381,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGa2200CenturyParkwayMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 18,663,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGa2200CenturyParkwayMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGa2200CenturyParkwayMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 14,432,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGa2200CenturyParkwayMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 0 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGa2200CenturyParkwayMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 4,231,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGa2200CenturyParkwayMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 0 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGa2200CenturyParkwayMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 18,663,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGa2200CenturyParkwayMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 18,663,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGa2200CenturyParkwayMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 8,381,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGa2200CenturyParkwayMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 18,663,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGa2200CenturyParkwayMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 8,381,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGa2200CenturyParkwayMember |  |  |
Atlanta, GA - 2200 Century Parkway [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Atlanta, GA - 2200 Century Parkway [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Atlanta, GA - 2400 Century Center [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 5,177,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGa2400CenturyCenterMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 13,100,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGa2400CenturyCenterMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGa2400CenturyCenterMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGa2400CenturyCenterMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 406,000 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGa2400CenturyCenterMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 12,694,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGa2400CenturyCenterMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 406,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGa2400CenturyCenterMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 12,694,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGa2400CenturyCenterMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 13,100,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGa2400CenturyCenterMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 5,177,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGa2400CenturyCenterMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 13,100,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGa2400CenturyCenterMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 5,177,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGa2400CenturyCenterMember |  |  |
Atlanta, GA - 2400 Century Center [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Atlanta, GA - 2400 Century Center [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Atlanta, GA - 2500 Century Center [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 5,015,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGa2500CenturyCenterMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 14,670,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGa2500CenturyCenterMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGa2500CenturyCenterMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGa2500CenturyCenterMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 328,000 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGa2500CenturyCenterMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 14,342,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGa2500CenturyCenterMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 328,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGa2500CenturyCenterMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 14,342,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGa2500CenturyCenterMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 14,670,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGa2500CenturyCenterMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 5,015,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGa2500CenturyCenterMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 14,670,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGa2500CenturyCenterMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 5,015,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGa2500CenturyCenterMember |  |  |
Atlanta, GA - 2500 Century Center [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Atlanta, GA - 2500 Century Center [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Atlanta, GA - 2500/2635 Parking Garage [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 1,431,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGa25002635ParkingGarageMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 6,317,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGa25002635ParkingGarageMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGa25002635ParkingGarageMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGa25002635ParkingGarageMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 0 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGa25002635ParkingGarageMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 6,317,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGa25002635ParkingGarageMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 0 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGa25002635ParkingGarageMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 6,317,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGa25002635ParkingGarageMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 6,317,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGa25002635ParkingGarageMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 1,431,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGa25002635ParkingGarageMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 6,317,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGa25002635ParkingGarageMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 1,431,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGa25002635ParkingGarageMember |  |  |
Atlanta, GA - 2500/2635 Parking Garage [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Atlanta, GA - 2500/2635 Parking Garage [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Atlanta, GA - 2600 Century Parkway [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 7,529,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGa2600CenturyParkwayMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 14,906,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGa2600CenturyParkwayMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGa2600CenturyParkwayMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 10,679,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGa2600CenturyParkwayMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 0 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGa2600CenturyParkwayMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 4,227,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGa2600CenturyParkwayMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 0 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGa2600CenturyParkwayMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 14,906,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGa2600CenturyParkwayMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 14,906,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGa2600CenturyParkwayMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 7,529,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGa2600CenturyParkwayMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 14,906,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGa2600CenturyParkwayMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 7,529,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGa2600CenturyParkwayMember |  |  |
Atlanta, GA - 2600 Century Parkway [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Atlanta, GA - 2600 Century Parkway [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Atlanta, GA - 2635 Century Parkway [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 10,887,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGa2635CenturyParkwayMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 25,073,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGa2635CenturyParkwayMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGa2635CenturyParkwayMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 21,643,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGa2635CenturyParkwayMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 0 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGa2635CenturyParkwayMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 3,430,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGa2635CenturyParkwayMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 0 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGa2635CenturyParkwayMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 25,073,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGa2635CenturyParkwayMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 25,073,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGa2635CenturyParkwayMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 10,887,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGa2635CenturyParkwayMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 25,073,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGa2635CenturyParkwayMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 10,887,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGa2635CenturyParkwayMember |  |  |
Atlanta, GA - 2635 Century Parkway [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Atlanta, GA - 2635 Century Parkway [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Atlanta, GA - 2800 Century Parkway [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 11,559,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGa2800CenturyParkwayMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 33,217,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGa2800CenturyParkwayMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGa2800CenturyParkwayMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 20,449,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGa2800CenturyParkwayMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 0 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGa2800CenturyParkwayMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 12,768,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGa2800CenturyParkwayMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 0 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGa2800CenturyParkwayMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 33,217,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGa2800CenturyParkwayMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 33,217,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGa2800CenturyParkwayMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 11,559,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGa2800CenturyParkwayMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 33,217,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGa2800CenturyParkwayMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 11,559,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGa2800CenturyParkwayMember |  |  |
Atlanta, GA - 2800 Century Parkway [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Atlanta, GA - 2800 Century Parkway [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Atlanta, GA - 50 Glenlake [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 9,654,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGa50GlenlakeMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 25,896,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGa50GlenlakeMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 2,500,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGa50GlenlakeMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 20,006,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGa50GlenlakeMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 0 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGa50GlenlakeMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 3,390,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGa50GlenlakeMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 2,500,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGa50GlenlakeMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 23,396,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGa50GlenlakeMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 25,896,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGa50GlenlakeMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 9,654,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGa50GlenlakeMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 25,896,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGa50GlenlakeMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 9,654,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGa50GlenlakeMember |  |  |
Atlanta, GA - 50 Glenlake [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Atlanta, GA - 50 Glenlake [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Atlanta, GA - Bluegrass Valley Land [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 0 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaBluegrassValleyLandMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 2,416,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaBluegrassValleyLandMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 19,711,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaBluegrassValleyLandMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaBluegrassValleyLandMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | (17,295,000)hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaBluegrassValleyLandMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaBluegrassValleyLandMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 2,416,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaBluegrassValleyLandMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaBluegrassValleyLandMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 2,416,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaBluegrassValleyLandMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 0 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaBluegrassValleyLandMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 2,416,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaBluegrassValleyLandMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 0 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaBluegrassValleyLandMember |  |  |
Atlanta, GA - Century Plaza I [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 4,654,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaCenturyPlazaIMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 13,198,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaCenturyPlazaIMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 1,290,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaCenturyPlazaIMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 8,567,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaCenturyPlazaIMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 0 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaCenturyPlazaIMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 3,341,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaCenturyPlazaIMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 1,290,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaCenturyPlazaIMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 11,908,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaCenturyPlazaIMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 13,198,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaCenturyPlazaIMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 4,654,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaCenturyPlazaIMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 13,198,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaCenturyPlazaIMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 4,654,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaCenturyPlazaIMember |  |  |
Atlanta, GA - Century Plaza I [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Atlanta, GA - Century Plaza I [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Atlanta, GA - Century Plaza II [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 4,010,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaCenturyPlazaIiMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 12,037,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaCenturyPlazaIiMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 1,380,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaCenturyPlazaIiMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 7,733,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaCenturyPlazaIiMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 0 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaCenturyPlazaIiMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 2,924,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaCenturyPlazaIiMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 1,380,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaCenturyPlazaIiMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 10,657,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaCenturyPlazaIiMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 12,037,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaCenturyPlazaIiMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 4,010,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaCenturyPlazaIiMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 12,037,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaCenturyPlazaIiMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 4,010,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaCenturyPlazaIiMember |  |  |
Atlanta, GA - Century Plaza II [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Atlanta, GA - Century Plaza II [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Atlanta, GA - Federal Aviation Administration [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 3,421,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaFaaAtTradeportMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 17,783,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaFaaAtTradeportMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 1,196,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaFaaAtTradeportMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaFaaAtTradeportMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 1,416,000 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaFaaAtTradeportMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 15,171,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaFaaAtTradeportMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 2,612,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaFaaAtTradeportMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 15,171,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaFaaAtTradeportMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 17,783,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaFaaAtTradeportMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 3,421,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaFaaAtTradeportMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 17,783,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaFaaAtTradeportMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 3,421,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaFaaAtTradeportMember |  |  |
Atlanta, GA - Federal Aviation Administration [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Atlanta, GA - Federal Aviation Administration [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Atlanta, GA - Henry County Land [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 0 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaHenryCountyLandMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 3,023,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaHenryCountyLandMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 3,010,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaHenryCountyLandMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaHenryCountyLandMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 13,000 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaHenryCountyLandMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaHenryCountyLandMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 3,023,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaHenryCountyLandMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaHenryCountyLandMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 3,023,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaHenryCountyLandMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 0 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaHenryCountyLandMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 3,023,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaHenryCountyLandMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 0 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaHenryCountyLandMember |  |  |
Atlanta, GA - Highwoods Center I at Tradeport [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 799,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaHighwoodsCenterIAtTradeportMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 2,597,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaHighwoodsCenterIAtTradeportMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 307,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaHighwoodsCenterIAtTradeportMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaHighwoodsCenterIAtTradeportMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 139,000 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaHighwoodsCenterIAtTradeportMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 2,151,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaHighwoodsCenterIAtTradeportMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 446,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaHighwoodsCenterIAtTradeportMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 2,151,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaHighwoodsCenterIAtTradeportMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 2,597,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaHighwoodsCenterIAtTradeportMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 799,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaHighwoodsCenterIAtTradeportMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 2,597,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaHighwoodsCenterIAtTradeportMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 799,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaHighwoodsCenterIAtTradeportMember |  |  |
Atlanta, GA - Highwoods Center I at Tradeport [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Atlanta, GA - Highwoods Center I at Tradeport [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Atlanta, GA - Highwoods Center III at Tradeport [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 945,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaHighwoodsCenterIiiAtTradeportMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 4,314,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaHighwoodsCenterIiiAtTradeportMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 409,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaHighwoodsCenterIiiAtTradeportMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaHighwoodsCenterIiiAtTradeportMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 130,000 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaHighwoodsCenterIiiAtTradeportMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 3,775,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaHighwoodsCenterIiiAtTradeportMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 539,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaHighwoodsCenterIiiAtTradeportMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 3,775,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaHighwoodsCenterIiiAtTradeportMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 4,314,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaHighwoodsCenterIiiAtTradeportMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 945,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaHighwoodsCenterIiiAtTradeportMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 4,314,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaHighwoodsCenterIiiAtTradeportMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 945,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaHighwoodsCenterIiiAtTradeportMember |  |  |
Atlanta, GA - Highwoods Center III at Tradeport [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Atlanta, GA - Highwoods Center III at Tradeport [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Atlanta, GA - Highwoods Riverpoint IV [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 0 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaHighwoodsRiverpointIvMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 0 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaHighwoodsRiverpointIvMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 1,037,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaHighwoodsRiverpointIvMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaHighwoodsRiverpointIvMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | (1,037,000)hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaHighwoodsRiverpointIvMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaHighwoodsRiverpointIvMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 0 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaHighwoodsRiverpointIvMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaHighwoodsRiverpointIvMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 0 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaHighwoodsRiverpointIvMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 0 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaHighwoodsRiverpointIvMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 0 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaHighwoodsRiverpointIvMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 0 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaHighwoodsRiverpointIvMember |  |  |
Atlanta, GA - Highwoods Riverpoint IV [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Atlanta, GA - Highwoods Riverpoint IV [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Atlanta, GA - 5405 Windward Parkway [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 13,733,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaNortelMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 50,737,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaNortelMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 3,342,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaNortelMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 32,111,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaNortelMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 0 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaNortelMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 15,284,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaNortelMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 3,342,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaNortelMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 47,395,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaNortelMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 50,737,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaNortelMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 13,733,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaNortelMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 50,737,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaNortelMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 13,733,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaNortelMember |  |  |
Atlanta, GA - 5405 Windward Parkway [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Atlanta, GA - 5405 Windward Parkway [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Atlanta, GA - River Point Land [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 327,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaRiverPointLandMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 13,712,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaRiverPointLandMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 7,250,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaRiverPointLandMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaRiverPointLandMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 3,913,000 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaRiverPointLandMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 2,549,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaRiverPointLandMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 11,163,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaRiverPointLandMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 2,549,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaRiverPointLandMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 13,712,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaRiverPointLandMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 327,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaRiverPointLandMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 13,712,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaRiverPointLandMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 327,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaRiverPointLandMember |  |  |
Atlanta, GA - River Point Land [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Atlanta, GA - River Point Land [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Atlanta, GA - Riverwood 100 [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 8,117,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaRiverwood100Member |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 79,412,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaRiverwood100Member |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 5,785,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaRiverwood100Member |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 64,913,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaRiverwood100Member |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | (29,000)hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaRiverwood100Member |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 8,743,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaRiverwood100Member |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 5,756,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaRiverwood100Member |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 73,656,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaRiverwood100Member |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 79,412,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaRiverwood100Member |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 8,117,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaRiverwood100Member |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 79,412,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaRiverwood100Member |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 8,117,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaRiverwood100Member |  |  |
Atlanta, GA - Riverwood 100 [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Atlanta, GA - Riverwood 100 [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Atlanta, GA - South Park Residential Land [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 0 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaSouthParkResidentialLandMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 57,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaSouthParkResidentialLandMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 50,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaSouthParkResidentialLandMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaSouthParkResidentialLandMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 7,000 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaSouthParkResidentialLandMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaSouthParkResidentialLandMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 57,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaSouthParkResidentialLandMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaSouthParkResidentialLandMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 57,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaSouthParkResidentialLandMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 0 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaSouthParkResidentialLandMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 57,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaSouthParkResidentialLandMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 0 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaSouthParkResidentialLandMember |  |  |
Atlanta, GA - South Park Site Land [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 0 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaSouthParkSiteLandMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 1,958,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaSouthParkSiteLandMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 1,204,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaSouthParkSiteLandMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaSouthParkSiteLandMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 754,000 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaSouthParkSiteLandMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaSouthParkSiteLandMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 1,958,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaSouthParkSiteLandMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaSouthParkSiteLandMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 1,958,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaSouthParkSiteLandMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 0 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaSouthParkSiteLandMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 1,958,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaSouthParkSiteLandMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 0 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaSouthParkSiteLandMember |  |  |
Atlanta, GA - Tradeport Land [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 0 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaTradeportLandMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 1,119,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaTradeportLandMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 5,243,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaTradeportLandMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaTradeportLandMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | (4,124,000)hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaTradeportLandMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaTradeportLandMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 1,119,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaTradeportLandMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaTradeportLandMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 1,119,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaTradeportLandMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 0 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaTradeportLandMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 1,119,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaTradeportLandMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 0 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaTradeportLandMember |  |  |
Atlanta, GA - Two Point Royal [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 7,550,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaTwoPointRoyalMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 19,357,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaTwoPointRoyalMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 1,793,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaTwoPointRoyalMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 14,964,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaTwoPointRoyalMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 0 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaTwoPointRoyalMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 2,600,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaTwoPointRoyalMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 1,793,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaTwoPointRoyalMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 17,564,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaTwoPointRoyalMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 19,357,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaTwoPointRoyalMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 7,550,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaTwoPointRoyalMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 19,357,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaTwoPointRoyalMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 7,550,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaTwoPointRoyalMember |  |  |
Atlanta, GA - Two Point Royal [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Atlanta, GA - Two Point Royal [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Atlanta, GA - Two Alliance Center [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 11,540,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaTwoAllianceCenterMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 138,285,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaTwoAllianceCenterMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 9,579,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaTwoAllianceCenterMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 125,549,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaTwoAllianceCenterMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 0 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaTwoAllianceCenterMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 3,157,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaTwoAllianceCenterMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 9,579,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaTwoAllianceCenterMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 128,706,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaTwoAllianceCenterMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 138,285,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaTwoAllianceCenterMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 11,540,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaTwoAllianceCenterMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 138,285,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaTwoAllianceCenterMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 11,540,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGaTwoAllianceCenterMember |  |  |
Atlanta, GA - Two Alliance Center [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Atlanta, GA - Two Alliance Center [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Atlanta, GA - One Alliance Center [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 6,888,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGAOneAllianceCenterMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 145,054,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGAOneAllianceCenterMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 14,775,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGAOneAllianceCenterMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 123,071,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGAOneAllianceCenterMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 0 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGAOneAllianceCenterMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 7,208,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGAOneAllianceCenterMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 14,775,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGAOneAllianceCenterMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 130,279,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGAOneAllianceCenterMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 145,054,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGAOneAllianceCenterMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 6,888,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGAOneAllianceCenterMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 145,054,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGAOneAllianceCenterMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 6,888,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGAOneAllianceCenterMember |  |  |
Atlanta, GA - One Alliance Center [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Atlanta, GA - One Alliance Center [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Atlanta, GA - 10 Glenlake North [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 2,080,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGA10GlenlakeNorthMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 32,307,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGA10GlenlakeNorthMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 5,349,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGA10GlenlakeNorthMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 26,334,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGA10GlenlakeNorthMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 0 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGA10GlenlakeNorthMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 624,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGA10GlenlakeNorthMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 5,349,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGA10GlenlakeNorthMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 26,958,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGA10GlenlakeNorthMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 32,307,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGA10GlenlakeNorthMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 2,080,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGA10GlenlakeNorthMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 32,307,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGA10GlenlakeNorthMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 2,080,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGA10GlenlakeNorthMember |  |  |
Atlanta, GA - 10 Glenlake North [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Atlanta, GA - 10 Glenlake North [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Atlanta, GA - 10 Glenlake South [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 1,780,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGA10GlenlakeSouthMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 29,426,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGA10GlenlakeSouthMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 5,103,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGA10GlenlakeSouthMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 22,811,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGA10GlenlakeSouthMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 0 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGA10GlenlakeSouthMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 1,512,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGA10GlenlakeSouthMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 5,103,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGA10GlenlakeSouthMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 24,323,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGA10GlenlakeSouthMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 29,426,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGA10GlenlakeSouthMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 1,780,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGA10GlenlakeSouthMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 29,426,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGA10GlenlakeSouthMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 1,780,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_AtlantaGA10GlenlakeSouthMember |  |  |
Atlanta, GA - 10 Glenlake South [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Atlanta, GA - 10 Glenlake South [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Kansas City, MO - Country Club Plaza [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 114,326,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_KansasCityMoCountryClubPlazaMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 286,833,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_KansasCityMoCountryClubPlazaMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 14,286,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_KansasCityMoCountryClubPlazaMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 146,879,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_KansasCityMoCountryClubPlazaMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | (473,000)hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_KansasCityMoCountryClubPlazaMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 126,141,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_KansasCityMoCountryClubPlazaMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 13,813,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_KansasCityMoCountryClubPlazaMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 273,020,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_KansasCityMoCountryClubPlazaMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 286,833,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_KansasCityMoCountryClubPlazaMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 114,326,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_KansasCityMoCountryClubPlazaMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 286,833,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_KansasCityMoCountryClubPlazaMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 114,326,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_KansasCityMoCountryClubPlazaMember |  |  |
Kansas City, MO - Country Club Plaza [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Kansas City, MO - Country Club Plaza [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Kansas City, MO - Land - Hotel Land - Valencia [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 0 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_KansasCityMoLandHotelLandValenciaMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 1,089,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_KansasCityMoLandHotelLandValenciaMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 978,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_KansasCityMoLandHotelLandValenciaMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_KansasCityMoLandHotelLandValenciaMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 111,000 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_KansasCityMoLandHotelLandValenciaMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_KansasCityMoLandHotelLandValenciaMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 1,089,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_KansasCityMoLandHotelLandValenciaMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_KansasCityMoLandHotelLandValenciaMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 1,089,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_KansasCityMoLandHotelLandValenciaMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 0 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_KansasCityMoLandHotelLandValenciaMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 1,089,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_KansasCityMoLandHotelLandValenciaMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 0 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_KansasCityMoLandHotelLandValenciaMember |  |  |
Kansas City, MO - Park Plaza Building [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 3,480,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_KansasCityMoParkPlazaMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 10,629,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_KansasCityMoParkPlazaMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 1,384,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_KansasCityMoParkPlazaMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 6,410,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_KansasCityMoParkPlazaMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 0 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_KansasCityMoParkPlazaMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 2,835,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_KansasCityMoParkPlazaMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 1,384,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_KansasCityMoParkPlazaMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 9,245,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_KansasCityMoParkPlazaMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 10,629,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_KansasCityMoParkPlazaMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 3,480,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_KansasCityMoParkPlazaMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 10,629,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_KansasCityMoParkPlazaMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 3,480,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_KansasCityMoParkPlazaMember |  |  |
Kansas City, MO - Park Plaza Building [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Kansas City, MO - Park Plaza Building [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Kansas City, MO - Two Emmanuel Cleaver Boulevard [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 2,639,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_KansasCityMoTwoBrushCreekMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 7,565,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_KansasCityMoTwoBrushCreekMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 984,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_KansasCityMoTwoBrushCreekMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 4,402,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_KansasCityMoTwoBrushCreekMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 0 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_KansasCityMoTwoBrushCreekMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 2,179,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_KansasCityMoTwoBrushCreekMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 984,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_KansasCityMoTwoBrushCreekMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 6,581,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_KansasCityMoTwoBrushCreekMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 7,565,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_KansasCityMoTwoBrushCreekMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 2,639,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_KansasCityMoTwoBrushCreekMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 7,565,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_KansasCityMoTwoBrushCreekMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 2,639,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_KansasCityMoTwoBrushCreekMember |  |  |
Kansas City, MO - Two Emmanuel Cleaver Boulevard [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Kansas City, MO - Two Emmanuel Cleaver Boulevard [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Kansas City, MO - Valencia Place Office [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 16,277,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_KansasCityMoValenciaPlaceOfficeMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 41,284,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_KansasCityMoValenciaPlaceOfficeMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 1,576,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_KansasCityMoValenciaPlaceOfficeMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_KansasCityMoValenciaPlaceOfficeMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 970,000 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_KansasCityMoValenciaPlaceOfficeMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 38,738,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_KansasCityMoValenciaPlaceOfficeMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 2,546,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_KansasCityMoValenciaPlaceOfficeMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 38,738,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_KansasCityMoValenciaPlaceOfficeMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 41,284,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_KansasCityMoValenciaPlaceOfficeMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 16,277,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_KansasCityMoValenciaPlaceOfficeMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 41,284,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_KansasCityMoValenciaPlaceOfficeMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 16,277,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_KansasCityMoValenciaPlaceOfficeMember |  |  |
Kansas City, MO - Valencia Place Office [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Kansas City, MO - Valencia Place Office [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Memphis, TN - 3400 Players Club Parkway [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 2,239,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTn3400PlayersClubParkwayMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 7,094,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTn3400PlayersClubParkwayMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 1,005,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTn3400PlayersClubParkwayMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTn3400PlayersClubParkwayMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 207,000 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTn3400PlayersClubParkwayMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 5,882,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTn3400PlayersClubParkwayMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 1,212,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTn3400PlayersClubParkwayMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 5,882,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTn3400PlayersClubParkwayMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 7,094,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTn3400PlayersClubParkwayMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 2,239,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTn3400PlayersClubParkwayMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 7,094,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTn3400PlayersClubParkwayMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 2,239,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTn3400PlayersClubParkwayMember |  |  |
Memphis, TN - 3400 Players Club Parkway [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Memphis, TN - 3400 Players Club Parkway [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Memphis, TN - Triad Centre I [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 5,726,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTNTriadCentreIMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 17,372,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTNTriadCentreIMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 2,340,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTNTriadCentreIMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 11,385,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTNTriadCentreIMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | (849,000)hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTNTriadCentreIMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 4,496,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTNTriadCentreIMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 1,491,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTNTriadCentreIMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 15,881,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTNTriadCentreIMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 17,372,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTNTriadCentreIMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 5,726,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTNTriadCentreIMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 17,372,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTNTriadCentreIMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 5,726,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTNTriadCentreIMember |  |  |
Memphis, TN - Triad Centre I [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Memphis, TN - Triad Centre I [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Memphis, TN - Triad Centre II [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 4,732,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTNTriadCentreIIMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 14,734,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTNTriadCentreIIMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 1,980,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTNTriadCentreIIMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 8,677,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTNTriadCentreIIMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | (404,000)hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTNTriadCentreIIMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 4,481,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTNTriadCentreIIMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 1,576,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTNTriadCentreIIMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 13,158,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTNTriadCentreIIMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 14,734,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTNTriadCentreIIMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 4,732,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTNTriadCentreIIMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 14,734,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTNTriadCentreIIMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 4,732,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTNTriadCentreIIMember |  |  |
Memphis, TN - Triad Centre II [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Memphis, TN - Triad Centre II [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Memphis, TN - Atrium I & II [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 4,188,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnAtriumIIiMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 10,835,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnAtriumIIiMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 1,570,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnAtriumIIiMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 6,253,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnAtriumIIiMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 0 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnAtriumIIiMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 3,012,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnAtriumIIiMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 1,570,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnAtriumIIiMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 9,265,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnAtriumIIiMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 10,835,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnAtriumIIiMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 4,188,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnAtriumIIiMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 10,835,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnAtriumIIiMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 4,188,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnAtriumIIiMember |  |  |
Memphis, TN - Atrium I & II [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Memphis, TN - Atrium I & II [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Memphis, TN - Centrum [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 3,957,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnCentrumMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 9,405,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnCentrumMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 1,013,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnCentrumMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 5,580,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnCentrumMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 0 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnCentrumMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 2,812,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnCentrumMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 1,013,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnCentrumMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 8,392,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnCentrumMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 9,405,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnCentrumMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 3,957,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnCentrumMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 9,405,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnCentrumMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 3,957,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnCentrumMember |  |  |
Memphis, TN - Centrum [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Memphis, TN - Centrum [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Memphis, TN - Comcast [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 2,625,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnComcastCorporationMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 9,566,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnComcastCorporationMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 946,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnComcastCorporationMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnComcastCorporationMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 0 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnComcastCorporationMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 8,620,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnComcastCorporationMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 946,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnComcastCorporationMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 8,620,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnComcastCorporationMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 9,566,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnComcastCorporationMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 2,625,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnComcastCorporationMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 9,566,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnComcastCorporationMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 2,625,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnComcastCorporationMember |  |  |
Memphis, TN - Comcast [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Memphis, TN - Comcast [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Memphis, TN - International Place Phase II [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 14,887,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnInternationalPlaceIiMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 37,991,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnInternationalPlaceIiMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 4,884,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnInternationalPlaceIiMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 27,782,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnInternationalPlaceIiMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 0 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnInternationalPlaceIiMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 5,325,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnInternationalPlaceIiMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 4,884,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnInternationalPlaceIiMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 33,107,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnInternationalPlaceIiMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 37,991,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnInternationalPlaceIiMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 14,887,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnInternationalPlaceIiMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 37,991,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnInternationalPlaceIiMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 14,887,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnInternationalPlaceIiMember |  |  |
Memphis, TN - International Place Phase II [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Memphis, TN - International Place Phase II [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Memphis, TN - PennMarc Centre [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 2,630,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnPennMarcMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 16,708,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnPennMarcMember |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Real Estate and Accumulated Depreciation, Encumbrances | 6,258,000 us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnPennMarcMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 3,607,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnPennMarcMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 10,240,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnPennMarcMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 0 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnPennMarcMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 2,861,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnPennMarcMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 3,607,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnPennMarcMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 13,101,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnPennMarcMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 16,708,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnPennMarcMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 2,630,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnPennMarcMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 16,708,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnPennMarcMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 2,630,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnPennMarcMember |  |  |
Memphis, TN - PennMarc Centre [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Memphis, TN - PennMarc Centre [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Memphis, TN - Shadow Creek I [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 2,376,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnShadowCreekIMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 8,117,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnShadowCreekIMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 924,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnShadowCreekIMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnShadowCreekIMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 466,000 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnShadowCreekIMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 6,727,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnShadowCreekIMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 1,390,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnShadowCreekIMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 6,727,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnShadowCreekIMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 8,117,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnShadowCreekIMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 2,376,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnShadowCreekIMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 8,117,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnShadowCreekIMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 2,376,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnShadowCreekIMember |  |  |
Memphis, TN - Shadow Creek I [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Memphis, TN - Shadow Creek I [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Memphis, TN - Shadow Creek II [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 2,662,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnShadowCreekIiMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 8,535,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnShadowCreekIiMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 734,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnShadowCreekIiMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnShadowCreekIiMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 467,000 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnShadowCreekIiMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 7,334,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnShadowCreekIiMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 1,201,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnShadowCreekIiMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 7,334,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnShadowCreekIiMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 8,535,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnShadowCreekIiMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 2,662,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnShadowCreekIiMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 8,535,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnShadowCreekIiMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 2,662,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnShadowCreekIiMember |  |  |
Memphis, TN - Shadow Creek II [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Memphis, TN - Shadow Creek II [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Memphis, TN - Southwind Office Center A [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 3,244,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnSouthwindOfficeCenterMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 8,180,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnSouthwindOfficeCenterMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 1,004,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnSouthwindOfficeCenterMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 5,694,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnSouthwindOfficeCenterMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 282,000 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnSouthwindOfficeCenterMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 1,200,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnSouthwindOfficeCenterMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 1,286,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnSouthwindOfficeCenterMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 6,894,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnSouthwindOfficeCenterMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 8,180,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnSouthwindOfficeCenterMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 3,244,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnSouthwindOfficeCenterMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 8,180,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnSouthwindOfficeCenterMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 3,244,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnSouthwindOfficeCenterMember |  |  |
Memphis, TN - Southwind Office Center A [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Memphis, TN - Southwind Office Center A [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Memphis, TN - Southwind Office Center B [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 4,034,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnSouthwindOfficeCenterBMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 10,382,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnSouthwindOfficeCenterBMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 1,366,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnSouthwindOfficeCenterBMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 7,754,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnSouthwindOfficeCenterBMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 0 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnSouthwindOfficeCenterBMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 1,262,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnSouthwindOfficeCenterBMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 1,366,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnSouthwindOfficeCenterBMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 9,016,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnSouthwindOfficeCenterBMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 10,382,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnSouthwindOfficeCenterBMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 4,034,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnSouthwindOfficeCenterBMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 10,382,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnSouthwindOfficeCenterBMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 4,034,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnSouthwindOfficeCenterBMember |  |  |
Memphis, TN - Southwind Office Center B [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Memphis, TN - Southwind Office Center B [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Memphis, TN - Southwind Office Center C [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 2,181,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnSouthwindOfficeCenterCMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 6,621,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnSouthwindOfficeCenterCMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 1,070,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnSouthwindOfficeCenterCMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnSouthwindOfficeCenterCMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 221,000 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnSouthwindOfficeCenterCMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 5,330,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnSouthwindOfficeCenterCMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 1,291,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnSouthwindOfficeCenterCMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 5,330,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnSouthwindOfficeCenterCMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 6,621,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnSouthwindOfficeCenterCMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 2,181,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnSouthwindOfficeCenterCMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 6,621,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnSouthwindOfficeCenterCMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 2,181,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnSouthwindOfficeCenterCMember |  |  |
Memphis, TN - Southwind Office Center C [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Memphis, TN - Southwind Office Center C [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Memphis, TN - Southwind Office Center D [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 2,110,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnSouthwindOfficeCenterDMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 6,473,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnSouthwindOfficeCenterDMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 744,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnSouthwindOfficeCenterDMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnSouthwindOfficeCenterDMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 193,000 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnSouthwindOfficeCenterDMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 5,536,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnSouthwindOfficeCenterDMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 937,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnSouthwindOfficeCenterDMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 5,536,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnSouthwindOfficeCenterDMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 6,473,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnSouthwindOfficeCenterDMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 2,110,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnSouthwindOfficeCenterDMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 6,473,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnSouthwindOfficeCenterDMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 2,110,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnSouthwindOfficeCenterDMember |  |  |
Memphis, TN - Southwind Office Center D [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Memphis, TN - Southwind Office Center D [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Memphis, TN - Colonnade [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 2,939,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnColonnadeMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 9,925,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnColonnadeMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 1,300,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnColonnadeMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 6,481,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnColonnadeMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 267,000 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnColonnadeMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 1,877,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnColonnadeMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 1,567,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnColonnadeMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 8,358,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnColonnadeMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 9,925,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnColonnadeMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 2,939,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnColonnadeMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 9,925,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnColonnadeMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 2,939,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnColonnadeMember |  |  |
Memphis, TN - Colonnade [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Memphis, TN - Colonnade [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Memphis, TN - ThyssenKrupp Elevator Mfg Headquarters [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 2,931,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnThyssenkruppMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 9,407,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnThyssenkruppMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 1,040,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnThyssenkruppMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnThyssenkruppMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 25,000 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnThyssenkruppMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 8,342,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnThyssenkruppMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 1,065,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnThyssenkruppMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 8,342,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnThyssenkruppMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 9,407,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnThyssenkruppMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 2,931,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnThyssenkruppMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 9,407,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnThyssenkruppMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 2,931,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnThyssenkruppMember |  |  |
Memphis, TN - ThyssenKrupp Elevator Mfg Headquarters [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Memphis, TN - ThyssenKrupp Elevator Mfg Headquarters [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Memphis, TN - Crescent Center [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 5,631,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnCrescentCenterMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 47,635,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnCrescentCenterMember |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Real Estate and Accumulated Depreciation, Encumbrances | 39,324,000 us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnCrescentCenterMember | [1] |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 7,875,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnCrescentCenterMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 32,756,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnCrescentCenterMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | (547,000)hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnCrescentCenterMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 7,551,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnCrescentCenterMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 7,328,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnCrescentCenterMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 40,307,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnCrescentCenterMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 47,635,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnCrescentCenterMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 5,631,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnCrescentCenterMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 47,635,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnCrescentCenterMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 5,631,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnCrescentCenterMember |  |  |
Memphis, TN - Crescent Center [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Memphis, TN - Crescent Center [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Memphis, TN - Southwind Land [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 0 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnSouthwindLandMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 2,185,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnSouthwindLandMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 3,662,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnSouthwindLandMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnSouthwindLandMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | (1,477,000)hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnSouthwindLandMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnSouthwindLandMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 2,185,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnSouthwindLandMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnSouthwindLandMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 2,185,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnSouthwindLandMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 0 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnSouthwindLandMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 2,185,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnSouthwindLandMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 0 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnSouthwindLandMember |  |  |
Memphis, TN - Triad Center III [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 5,732,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnTriadCenterMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 38,056,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnTriadCenterMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 1,253,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnTriadCenterMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnTriadCenterMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 0 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnTriadCenterMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 36,803,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnTriadCenterMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 1,253,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnTriadCenterMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 36,803,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnTriadCenterMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 38,056,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnTriadCenterMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 5,732,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnTriadCenterMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 38,056,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnTriadCenterMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 5,732,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTnTriadCenterMember |  |  |
Memphis, TN - Triad Center III [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Memphis, TN - Triad Center III [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Memphis, TN - Capital Grille [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 246,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTNCapitalGrilleMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 3,613,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTNCapitalGrilleMember |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Real Estate and Accumulated Depreciation, Encumbrances | 39,324,000 us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTNCapitalGrilleMember | [1] |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTNCapitalGrilleMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTNCapitalGrilleMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 311,000 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTNCapitalGrilleMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 3,302,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTNCapitalGrilleMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 311,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTNCapitalGrilleMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 3,302,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTNCapitalGrilleMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 3,613,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTNCapitalGrilleMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 246,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTNCapitalGrilleMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 3,613,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTNCapitalGrilleMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 246,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTNCapitalGrilleMember |  |  |
Memphis, TN - Capital Grille [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Memphis, TN - Capital Grille [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Memphis, TN - Seasons 52 [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 282,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTNSeasons52Member |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 4,061,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTNSeasons52Member |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Real Estate and Accumulated Depreciation, Encumbrances | 39,324,000 us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTNSeasons52Member | [1] |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTNSeasons52Member |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTNSeasons52Member |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 320,000 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTNSeasons52Member |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 3,741,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTNSeasons52Member |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 320,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTNSeasons52Member |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 3,741,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTNSeasons52Member |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 4,061,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTNSeasons52Member |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 282,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTNSeasons52Member |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 4,061,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTNSeasons52Member |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 282,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_MemphisTNSeasons52Member |  |  |
Memphis, TN - Seasons 52 [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Memphis, TN - Seasons 52 [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Nashville, TN - 3322 West End [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 12,116,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTn3322WestEndMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 34,352,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTn3322WestEndMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 3,025,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTn3322WestEndMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 27,490,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTn3322WestEndMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 0 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTn3322WestEndMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 3,837,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTn3322WestEndMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 3,025,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTn3322WestEndMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 31,327,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTn3322WestEndMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 34,352,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTn3322WestEndMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 12,116,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTn3322WestEndMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 34,352,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTn3322WestEndMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 12,116,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTn3322WestEndMember |  |  |
Nashville, TN - 3322 West End [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Nashville, TN - 3322 West End [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Nashville, TN - 3401 West End [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 14,930,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTn3401WestEndMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 34,737,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTn3401WestEndMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 5,862,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTn3401WestEndMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 22,917,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTn3401WestEndMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 0 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTn3401WestEndMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 5,958,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTn3401WestEndMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 5,862,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTn3401WestEndMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 28,875,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTn3401WestEndMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 34,737,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTn3401WestEndMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 14,930,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTn3401WestEndMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 34,737,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTn3401WestEndMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 14,930,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTn3401WestEndMember |  |  |
Nashville, TN - 3401 West End [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Nashville, TN - 3401 West End [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Nashville, TN - 5310 Maryland Way [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 3,525,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTn5310MarylandWayMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 12,875,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTn5310MarylandWayMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 1,863,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTn5310MarylandWayMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 7,201,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTn5310MarylandWayMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 0 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTn5310MarylandWayMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 3,811,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTn5310MarylandWayMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 1,863,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTn5310MarylandWayMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 11,012,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTn5310MarylandWayMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 12,875,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTn5310MarylandWayMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 3,525,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTn5310MarylandWayMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 12,875,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTn5310MarylandWayMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 3,525,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTn5310MarylandWayMember |  |  |
Nashville, TN - 5310 Maryland Way [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Nashville, TN - 5310 Maryland Way [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Nashville, TN - Cool Springs 1 & 2 Deck [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 709,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnCoolSprings12DeckMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 3,957,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnCoolSprings12DeckMember |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Real Estate and Accumulated Depreciation, Encumbrances | 107,556,000 us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnCoolSprings12DeckMember | [2] |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnCoolSprings12DeckMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnCoolSprings12DeckMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 0 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnCoolSprings12DeckMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 3,957,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnCoolSprings12DeckMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 0 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnCoolSprings12DeckMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 3,957,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnCoolSprings12DeckMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 3,957,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnCoolSprings12DeckMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 709,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnCoolSprings12DeckMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 3,957,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnCoolSprings12DeckMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 709,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnCoolSprings12DeckMember |  |  |
Nashville, TN - Cool Springs 1 & 2 Deck [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Nashville, TN - Cool Springs 1 & 2 Deck [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Nashville, TN - Cool Springs 3 &4 Deck [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 856,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnCoolSprings34DeckMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 4,418,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnCoolSprings34DeckMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnCoolSprings34DeckMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnCoolSprings34DeckMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 0 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnCoolSprings34DeckMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 4,418,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnCoolSprings34DeckMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 0 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnCoolSprings34DeckMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 4,418,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnCoolSprings34DeckMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 4,418,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnCoolSprings34DeckMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 856,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnCoolSprings34DeckMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 4,418,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnCoolSprings34DeckMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 856,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnCoolSprings34DeckMember |  |  |
Nashville, TN - Cool Springs 3 &4 Deck [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Nashville, TN - Cool Springs 3 &4 Deck [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Nashville, TN - Cool Springs I [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 4,989,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnCoolSpringsIMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 14,710,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnCoolSpringsIMember |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Real Estate and Accumulated Depreciation, Encumbrances | 107,556,000 us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnCoolSpringsIMember | [2] |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 1,583,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnCoolSpringsIMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnCoolSpringsIMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 15,000 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnCoolSpringsIMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 13,112,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnCoolSpringsIMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 1,598,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnCoolSpringsIMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 13,112,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnCoolSpringsIMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 14,710,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnCoolSpringsIMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 4,989,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnCoolSpringsIMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 14,710,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnCoolSpringsIMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 4,989,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnCoolSpringsIMember |  |  |
Nashville, TN - Cool Springs I [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Nashville, TN - Cool Springs I [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Nashville, TN - Cool Springs II [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 5,808,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnCoolSpringsIiMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 19,861,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnCoolSpringsIiMember |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Real Estate and Accumulated Depreciation, Encumbrances | 107,556,000 us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnCoolSpringsIiMember | [2] |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 1,824,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnCoolSpringsIiMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnCoolSpringsIiMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 346,000 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnCoolSpringsIiMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 17,691,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnCoolSpringsIiMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 2,170,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnCoolSpringsIiMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 17,691,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnCoolSpringsIiMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 19,861,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnCoolSpringsIiMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 5,808,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnCoolSpringsIiMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 19,861,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnCoolSpringsIiMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 5,808,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnCoolSpringsIiMember |  |  |
Nashville, TN - Cool Springs II [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Nashville, TN - Cool Springs II [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Nashville, TN - Cool Springs III [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 3,956,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnCoolSpringsIiiMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 18,296,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnCoolSpringsIiiMember |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Real Estate and Accumulated Depreciation, Encumbrances | 107,556,000 us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnCoolSpringsIiiMember | [2] |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 1,631,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnCoolSpringsIiiMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnCoolSpringsIiiMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 804,000 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnCoolSpringsIiiMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 15,861,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnCoolSpringsIiiMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 2,435,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnCoolSpringsIiiMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 15,861,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnCoolSpringsIiiMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 18,296,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnCoolSpringsIiiMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 3,956,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnCoolSpringsIiiMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 18,296,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnCoolSpringsIiiMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 3,956,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnCoolSpringsIiiMember |  |  |
Nashville, TN - Cool Springs III [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Nashville, TN - Cool Springs III [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Nashville, TN - Cool Springs IV [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 3,091,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnCoolSpringsIvMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 20,945,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnCoolSpringsIvMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 1,715,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnCoolSpringsIvMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnCoolSpringsIvMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 0 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnCoolSpringsIvMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 19,230,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnCoolSpringsIvMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 1,715,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnCoolSpringsIvMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 19,230,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnCoolSpringsIvMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 20,945,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnCoolSpringsIvMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 3,091,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnCoolSpringsIvMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 20,945,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnCoolSpringsIvMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 3,091,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnCoolSpringsIvMember |  |  |
Nashville, TN - Cool Springs IV [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Nashville, TN - Cool Springs IV [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Nashville, TN - Cool Springs V Healthways [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 12,153,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnCoolSpringsVMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 56,931,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnCoolSpringsVMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 3,688,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnCoolSpringsVMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnCoolSpringsVMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 295,000 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnCoolSpringsVMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 52,948,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnCoolSpringsVMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 3,983,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnCoolSpringsVMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 52,948,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnCoolSpringsVMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 56,931,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnCoolSpringsVMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 12,153,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnCoolSpringsVMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 56,931,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnCoolSpringsVMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 12,153,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnCoolSpringsVMember |  |  |
Nashville, TN - Cool Springs V Healthways [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Nashville, TN - Cool Springs V Healthways [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Nashville, TN - Harpeth on the Green II [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 3,484,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnHarpethOnGreenIiMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 8,951,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnHarpethOnGreenIiMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 1,419,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnHarpethOnGreenIiMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 5,677,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnHarpethOnGreenIiMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 0 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnHarpethOnGreenIiMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 1,855,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnHarpethOnGreenIiMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 1,419,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnHarpethOnGreenIiMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 7,532,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnHarpethOnGreenIiMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 8,951,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnHarpethOnGreenIiMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 3,484,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnHarpethOnGreenIiMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 8,951,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnHarpethOnGreenIiMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 3,484,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnHarpethOnGreenIiMember |  |  |
Nashville, TN - Harpeth on the Green II [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Nashville, TN - Harpeth on the Green II [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Nashville, TN - Harpeth on the Green III [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 3,508,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnHarpethOnGreenIiiMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 9,588,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnHarpethOnGreenIiiMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 1,660,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnHarpethOnGreenIiiMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 6,649,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnHarpethOnGreenIiiMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 0 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnHarpethOnGreenIiiMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 1,279,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnHarpethOnGreenIiiMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 1,660,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnHarpethOnGreenIiiMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 7,928,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnHarpethOnGreenIiiMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 9,588,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnHarpethOnGreenIiiMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 3,508,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnHarpethOnGreenIiiMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 9,588,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnHarpethOnGreenIiiMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 3,508,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnHarpethOnGreenIiiMember |  |  |
Nashville, TN - Harpeth on the Green III [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Nashville, TN - Harpeth on the Green III [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Nashville, TN - Harpeth on the Green IV [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 3,985,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnHarpethOnGreenIvMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 10,156,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnHarpethOnGreenIvMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 1,713,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnHarpethOnGreenIvMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 6,842,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnHarpethOnGreenIvMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 0 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnHarpethOnGreenIvMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 1,601,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnHarpethOnGreenIvMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 1,713,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnHarpethOnGreenIvMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 8,443,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnHarpethOnGreenIvMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 10,156,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnHarpethOnGreenIvMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 3,985,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnHarpethOnGreenIvMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 10,156,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnHarpethOnGreenIvMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 3,985,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnHarpethOnGreenIvMember |  |  |
Nashville, TN - Harpeth on the Green IV [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Nashville, TN - Harpeth on the Green IV [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Nashville, TN - Harpeth on The Green V [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 1,783,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnHarpethOnGreenVMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 5,998,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnHarpethOnGreenVMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 662,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnHarpethOnGreenVMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnHarpethOnGreenVMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 197,000 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnHarpethOnGreenVMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 5,139,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnHarpethOnGreenVMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 859,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnHarpethOnGreenVMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 5,139,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnHarpethOnGreenVMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 5,998,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnHarpethOnGreenVMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 1,783,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnHarpethOnGreenVMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 5,998,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnHarpethOnGreenVMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 1,783,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnHarpethOnGreenVMember |  |  |
Nashville, TN - Harpeth on The Green V [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Nashville, TN - Harpeth on The Green V [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Nashville, TN - Hickory Trace [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 1,477,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnHickoryTraceMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 5,812,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnHickoryTraceMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 1,164,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnHickoryTraceMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnHickoryTraceMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 164,000 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnHickoryTraceMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 4,484,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnHickoryTraceMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 1,328,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnHickoryTraceMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 4,484,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnHickoryTraceMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 5,812,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnHickoryTraceMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 1,477,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnHickoryTraceMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 5,812,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnHickoryTraceMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 1,477,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnHickoryTraceMember |  |  |
Nashville, TN - Hickory Trace [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Nashville, TN - Hickory Trace [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Nashville, TN - Highwoods Plaza I [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 3,779,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnHighwoodsPlazaIMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 10,754,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnHighwoodsPlazaIMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 1,552,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnHighwoodsPlazaIMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnHighwoodsPlazaIMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 307,000 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnHighwoodsPlazaIMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 8,895,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnHighwoodsPlazaIMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 1,859,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnHighwoodsPlazaIMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 8,895,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnHighwoodsPlazaIMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 10,754,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnHighwoodsPlazaIMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 3,779,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnHighwoodsPlazaIMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 10,754,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnHighwoodsPlazaIMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 3,779,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnHighwoodsPlazaIMember |  |  |
Nashville, TN - Highwoods Plaza I [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Nashville, TN - Highwoods Plaza I [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Nashville, TN - Highwoods Plaza II [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 2,538,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnHighwoodsPlazaIiMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 10,550,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnHighwoodsPlazaIiMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 1,448,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnHighwoodsPlazaIiMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnHighwoodsPlazaIiMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 307,000 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnHighwoodsPlazaIiMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 8,795,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnHighwoodsPlazaIiMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 1,755,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnHighwoodsPlazaIiMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 8,795,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnHighwoodsPlazaIiMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 10,550,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnHighwoodsPlazaIiMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 2,538,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnHighwoodsPlazaIiMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 10,550,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnHighwoodsPlazaIiMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 2,538,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnHighwoodsPlazaIiMember |  |  |
Nashville, TN - Highwoods Plaza II [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Nashville, TN - Highwoods Plaza II [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Nashville, TN - Seven Springs - Land II [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 0 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnSevenSpringsLandIiMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 2,229,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnSevenSpringsLandIiMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 3,715,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnSevenSpringsLandIiMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnSevenSpringsLandIiMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | (1,486,000)hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnSevenSpringsLandIiMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnSevenSpringsLandIiMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 2,229,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnSevenSpringsLandIiMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnSevenSpringsLandIiMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 2,229,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnSevenSpringsLandIiMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 0 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnSevenSpringsLandIiMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 2,229,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnSevenSpringsLandIiMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 0 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnSevenSpringsLandIiMember |  |  |
Nashville, TN - Seven Springs I [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 3,734,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnSevenSpringsIMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 14,381,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnSevenSpringsIMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 2,076,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnSevenSpringsIMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnSevenSpringsIMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 592,000 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnSevenSpringsIMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 11,713,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnSevenSpringsIMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 2,668,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnSevenSpringsIMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 11,713,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnSevenSpringsIMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 14,381,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnSevenSpringsIMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 3,734,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnSevenSpringsIMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 14,381,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnSevenSpringsIMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 3,734,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnSevenSpringsIMember |  |  |
Nashville, TN - Seven Springs I [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Nashville, TN - Seven Springs I [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Nashville, TN - SouthPointe [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 2,803,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnSouthpointeMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 8,984,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnSouthpointeMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 1,655,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnSouthpointeMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnSouthpointeMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 310,000 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnSouthpointeMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 7,019,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnSouthpointeMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 1,965,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnSouthpointeMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 7,019,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnSouthpointeMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 8,984,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnSouthpointeMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 2,803,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnSouthpointeMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 8,984,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnSouthpointeMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 2,803,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnSouthpointeMember |  |  |
Nashville, TN - SouthPointe [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Nashville, TN - SouthPointe [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Nashville, TN - The Ramparts of Brentwood [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 5,944,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnRampartsAtBrentwoodMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 17,318,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnRampartsAtBrentwoodMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 2,394,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnRampartsAtBrentwoodMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 12,806,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnRampartsAtBrentwoodMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 0 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnRampartsAtBrentwoodMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 2,118,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnRampartsAtBrentwoodMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 2,394,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnRampartsAtBrentwoodMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 14,924,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnRampartsAtBrentwoodMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 17,318,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnRampartsAtBrentwoodMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 5,944,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnRampartsAtBrentwoodMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 17,318,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnRampartsAtBrentwoodMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 5,944,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnRampartsAtBrentwoodMember |  |  |
Nashville, TN - The Ramparts of Brentwood [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Nashville, TN - The Ramparts of Brentwood [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Nashville, TN - Westwood South [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 3,382,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnWestwoodSouthMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 11,169,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnWestwoodSouthMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 2,106,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnWestwoodSouthMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnWestwoodSouthMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 382,000 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnWestwoodSouthMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 8,681,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnWestwoodSouthMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 2,488,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnWestwoodSouthMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 8,681,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnWestwoodSouthMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 11,169,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnWestwoodSouthMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 3,382,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnWestwoodSouthMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 11,169,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnWestwoodSouthMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 3,382,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnWestwoodSouthMember |  |  |
Nashville, TN - Westwood South [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Nashville, TN - Westwood South [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Nashville, TN - 100 Winners Circle [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 3,813,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnWinnersCircleMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 10,452,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnWinnersCircleMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 1,497,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnWinnersCircleMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 7,258,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnWinnersCircleMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 0 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnWinnersCircleMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 1,697,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnWinnersCircleMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 1,497,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnWinnersCircleMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 8,955,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnWinnersCircleMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 10,452,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnWinnersCircleMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 3,813,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnWinnersCircleMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 10,452,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnWinnersCircleMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 3,813,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTnWinnersCircleMember |  |  |
Nashville, TN - 100 Winners Circle [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Nashville, TN - 100 Winners Circle [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Nashville, TN - The Pinnacle at Symphony Place [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 6,904,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTNThePinnacleatSymphonyMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 145,507,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTNThePinnacleatSymphonyMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTNThePinnacleatSymphonyMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 141,469,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTNThePinnacleatSymphonyMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 0 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTNThePinnacleatSymphonyMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 4,038,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTNThePinnacleatSymphonyMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 0 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTNThePinnacleatSymphonyMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 145,507,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTNThePinnacleatSymphonyMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 145,507,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTNThePinnacleatSymphonyMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 6,904,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTNThePinnacleatSymphonyMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 145,507,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTNThePinnacleatSymphonyMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 6,904,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTNThePinnacleatSymphonyMember |  |  |
Nashville, TN - The Pinnacle at Symphony Place [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Nashville, TN - The Pinnacle at Symphony Place [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Nashville, TN - Seven Springs East [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 1,347,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTNSevenSpringsEastMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 40,004,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTNSevenSpringsEastMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTNSevenSpringsEastMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTNSevenSpringsEastMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 2,525,000 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTNSevenSpringsEastMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 37,479,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTNSevenSpringsEastMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 2,525,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTNSevenSpringsEastMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 37,479,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTNSevenSpringsEastMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 40,004,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTNSevenSpringsEastMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 1,347,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTNSevenSpringsEastMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 40,004,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTNSevenSpringsEastMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 1,347,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTNSevenSpringsEastMember |  |  |
Nashville, TN - Seven Springs East [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Nashville, TN - Seven Springs East [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Nashville, TN - The Shops at Seven Springs [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 297,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTNShopsatSevenSpringsMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 8,833,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTNShopsatSevenSpringsMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTNShopsatSevenSpringsMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTNShopsatSevenSpringsMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 803,000 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTNShopsatSevenSpringsMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 8,030,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTNShopsatSevenSpringsMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 803,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTNShopsatSevenSpringsMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 8,030,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTNShopsatSevenSpringsMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 8,833,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTNShopsatSevenSpringsMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 297,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTNShopsatSevenSpringsMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 8,833,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTNShopsatSevenSpringsMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 297,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_NashvilleTNShopsatSevenSpringsMember |  |  |
Nashville, TN - The Shops at Seven Springs [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Nashville, TN - The Shops at Seven Springs [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Orlando, FL - Berkshire at MetroCenter [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 3,813,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_OrlandoFlBerkshireAtMetroCenterMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 14,622,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_OrlandoFlBerkshireAtMetroCenterMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 1,265,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_OrlandoFlBerkshireAtMetroCenterMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_OrlandoFlBerkshireAtMetroCenterMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 672,000 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_OrlandoFlBerkshireAtMetroCenterMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 12,685,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_OrlandoFlBerkshireAtMetroCenterMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 1,937,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_OrlandoFlBerkshireAtMetroCenterMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 12,685,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_OrlandoFlBerkshireAtMetroCenterMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 14,622,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_OrlandoFlBerkshireAtMetroCenterMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 3,813,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_OrlandoFlBerkshireAtMetroCenterMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 14,622,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_OrlandoFlBerkshireAtMetroCenterMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 3,813,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_OrlandoFlBerkshireAtMetroCenterMember |  |  |
Orlando, FL - Berkshire at MetroCenter [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Orlando, FL - Berkshire at MetroCenter [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Orlando, FL - Capital Plaza III Land [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 0 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_OrlandoFlCapitalPlazaIiiMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 3,012,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_OrlandoFlCapitalPlazaIiiMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 2,994,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_OrlandoFlCapitalPlazaIiiMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_OrlandoFlCapitalPlazaIiiMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 18,000 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_OrlandoFlCapitalPlazaIiiMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_OrlandoFlCapitalPlazaIiiMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 3,012,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_OrlandoFlCapitalPlazaIiiMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_OrlandoFlCapitalPlazaIiiMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 3,012,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_OrlandoFlCapitalPlazaIiiMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 0 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_OrlandoFlCapitalPlazaIiiMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 3,012,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_OrlandoFlCapitalPlazaIiiMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 0 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_OrlandoFlCapitalPlazaIiiMember |  |  |
Orlando, FL - Eola Park Land [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 0 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_OrlandoFlEolaParkLandMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 2,027,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_OrlandoFlEolaParkLandMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 2,027,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_OrlandoFlEolaParkLandMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_OrlandoFlEolaParkLandMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 0 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_OrlandoFlEolaParkLandMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_OrlandoFlEolaParkLandMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 2,027,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_OrlandoFlEolaParkLandMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_OrlandoFlEolaParkLandMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 2,027,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_OrlandoFlEolaParkLandMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 0 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_OrlandoFlEolaParkLandMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 2,027,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_OrlandoFlEolaParkLandMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 0 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_OrlandoFlEolaParkLandMember |  |  |
Orlando, FL - Oxford Land [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 0 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_OrlandoFlMetrowest1LandMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 1,151,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_OrlandoFlMetrowest1LandMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 1,100,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_OrlandoFlMetrowest1LandMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_OrlandoFlMetrowest1LandMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 51,000 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_OrlandoFlMetrowest1LandMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_OrlandoFlMetrowest1LandMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 1,151,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_OrlandoFlMetrowest1LandMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_OrlandoFlMetrowest1LandMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 1,151,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_OrlandoFlMetrowest1LandMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 0 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_OrlandoFlMetrowest1LandMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 1,151,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_OrlandoFlMetrowest1LandMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 0 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_OrlandoFlMetrowest1LandMember |  |  |
Orlando, FL - Stratford Land [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 0 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_OrlandoFlMetrowestLandMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 1,886,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_OrlandoFlMetrowestLandMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 2,034,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_OrlandoFlMetrowestLandMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_OrlandoFlMetrowestLandMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | (148,000)hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_OrlandoFlMetrowestLandMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_OrlandoFlMetrowestLandMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 1,886,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_OrlandoFlMetrowestLandMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_OrlandoFlMetrowestLandMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 1,886,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_OrlandoFlMetrowestLandMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 0 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_OrlandoFlMetrowestLandMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 1,886,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_OrlandoFlMetrowestLandMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 0 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_OrlandoFlMetrowestLandMember |  |  |
Orlando, FL - Windsor at Metro Center [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 2,281,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_OrlandoFlWindsorAtMetroCenterMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 10,099,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_OrlandoFlWindsorAtMetroCenterMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_OrlandoFlWindsorAtMetroCenterMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_OrlandoFlWindsorAtMetroCenterMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 2,060,000 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_OrlandoFlWindsorAtMetroCenterMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 8,039,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_OrlandoFlWindsorAtMetroCenterMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 2,060,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_OrlandoFlWindsorAtMetroCenterMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 8,039,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_OrlandoFlWindsorAtMetroCenterMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 10,099,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_OrlandoFlWindsorAtMetroCenterMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 2,281,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_OrlandoFlWindsorAtMetroCenterMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 10,099,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_OrlandoFlWindsorAtMetroCenterMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 2,281,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_OrlandoFlWindsorAtMetroCenterMember |  |  |
Orlando, FL - Windsor at Metro Center [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Orlando, FL - Windsor at Metro Center [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
South Florida - The 1800 Eller Drive Building [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 6,514,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_SouthFlorida1800EllerDriveBuildingMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 12,929,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_SouthFlorida1800EllerDriveBuildingMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_SouthFlorida1800EllerDriveBuildingMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 9,851,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_SouthFlorida1800EllerDriveBuildingMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 0 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_SouthFlorida1800EllerDriveBuildingMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 3,078,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_SouthFlorida1800EllerDriveBuildingMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 0 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_SouthFlorida1800EllerDriveBuildingMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 12,929,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_SouthFlorida1800EllerDriveBuildingMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 12,929,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_SouthFlorida1800EllerDriveBuildingMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 6,514,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_SouthFlorida1800EllerDriveBuildingMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 12,929,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_SouthFlorida1800EllerDriveBuildingMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 6,514,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_SouthFlorida1800EllerDriveBuildingMember |  |  |
South Florida - The 1800 Eller Drive Building [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
South Florida - The 1800 Eller Drive Building [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Orlando - Seaside Plaza [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 2,020,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_SouthFloridaSeasidePlazaMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 36,717,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_SouthFloridaSeasidePlazaMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 3,893,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_SouthFloridaSeasidePlazaMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 29,541,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_SouthFloridaSeasidePlazaMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 0 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_SouthFloridaSeasidePlazaMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 3,283,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_SouthFloridaSeasidePlazaMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 3,893,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_SouthFloridaSeasidePlazaMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 32,824,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_SouthFloridaSeasidePlazaMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 36,717,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_SouthFloridaSeasidePlazaMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 2,020,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_SouthFloridaSeasidePlazaMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 36,717,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_SouthFloridaSeasidePlazaMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 2,020,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_SouthFloridaSeasidePlazaMember |  |  |
Orlando - Seaside Plaza [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Orlando - Seaside Plaza [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Orlando - Capital Plaza Two [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 2,477,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_SouthFloridaCapitalPlazaTwoMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 49,900,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_SouthFloridaCapitalPlazaTwoMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 4,346,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_SouthFloridaCapitalPlazaTwoMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 43,394,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_SouthFloridaCapitalPlazaTwoMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 0 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_SouthFloridaCapitalPlazaTwoMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 2,160,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_SouthFloridaCapitalPlazaTwoMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 4,346,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_SouthFloridaCapitalPlazaTwoMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 45,554,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_SouthFloridaCapitalPlazaTwoMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 49,900,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_SouthFloridaCapitalPlazaTwoMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 2,477,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_SouthFloridaCapitalPlazaTwoMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 49,900,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_SouthFloridaCapitalPlazaTwoMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 2,477,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_SouthFloridaCapitalPlazaTwoMember |  |  |
Orlando - Capital Plaza Two [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Orlando - Capital Plaza Two [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Orlando - Capital Plaza One [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 1,909,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_SouthFloridaCapitalPlazaOneMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 31,878,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_SouthFloridaCapitalPlazaOneMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 3,482,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_SouthFloridaCapitalPlazaOneMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 27,321,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_SouthFloridaCapitalPlazaOneMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 0 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_SouthFloridaCapitalPlazaOneMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 1,075,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_SouthFloridaCapitalPlazaOneMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 3,482,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_SouthFloridaCapitalPlazaOneMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 28,396,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_SouthFloridaCapitalPlazaOneMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 31,878,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_SouthFloridaCapitalPlazaOneMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 1,909,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_SouthFloridaCapitalPlazaOneMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 31,878,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_SouthFloridaCapitalPlazaOneMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 1,909,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_SouthFloridaCapitalPlazaOneMember |  |  |
Orlando - Capital Plaza One [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Orlando - Capital Plaza One [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Orlando - Landmark Center Two [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 1,434,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_SouthFloridaLandmarkCenterTwoMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 28,536,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_SouthFloridaLandmarkCenterTwoMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 4,743,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_SouthFloridaLandmarkCenterTwoMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 22,031,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_SouthFloridaLandmarkCenterTwoMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 0 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_SouthFloridaLandmarkCenterTwoMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 1,762,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_SouthFloridaLandmarkCenterTwoMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 4,743,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_SouthFloridaLandmarkCenterTwoMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 23,793,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_SouthFloridaLandmarkCenterTwoMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 28,536,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_SouthFloridaLandmarkCenterTwoMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 1,434,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_SouthFloridaLandmarkCenterTwoMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 28,536,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_SouthFloridaLandmarkCenterTwoMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 1,434,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_SouthFloridaLandmarkCenterTwoMember |  |  |
Orlando - Landmark Center Two [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Orlando - Landmark Center Two [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Orlando - Landmark Center One [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 1,679,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_SouthFloridaLandmarkCenterOneMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 29,940,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_SouthFloridaLandmarkCenterOneMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 6,207,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_SouthFloridaLandmarkCenterOneMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 22,655,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_SouthFloridaLandmarkCenterOneMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 0 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_SouthFloridaLandmarkCenterOneMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 1,078,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_SouthFloridaLandmarkCenterOneMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 6,207,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_SouthFloridaLandmarkCenterOneMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 23,733,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_SouthFloridaLandmarkCenterOneMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 29,940,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_SouthFloridaLandmarkCenterOneMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 1,679,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_SouthFloridaLandmarkCenterOneMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 29,940,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_SouthFloridaLandmarkCenterOneMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 1,679,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_SouthFloridaLandmarkCenterOneMember |  |  |
Orlando - Landmark Center One [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Orlando - Landmark Center One [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
South Florida - Lincoln Plaza [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 166,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_SouthFloridaLincolnPlazaMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 59,569,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_SouthFloridaLincolnPlazaMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_SouthFloridaLincolnPlazaMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_SouthFloridaLincolnPlazaMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 3,490,000 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_SouthFloridaLincolnPlazaMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 56,079,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_SouthFloridaLincolnPlazaMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 3,490,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_SouthFloridaLincolnPlazaMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 56,079,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_SouthFloridaLincolnPlazaMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 59,569,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_SouthFloridaLincolnPlazaMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 166,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_SouthFloridaLincolnPlazaMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 59,569,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_SouthFloridaLincolnPlazaMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 166,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_SouthFloridaLincolnPlazaMember |  |  |
South Florida - Lincoln Plaza [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
South Florida - Lincoln Plaza [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Greensboro, NC - 6348 Burnt Poplar [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 1,559,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNc6348BurntPoplarMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 3,878,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNc6348BurntPoplarMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 724,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNc6348BurntPoplarMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 2,900,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNc6348BurntPoplarMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 0 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNc6348BurntPoplarMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 254,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNc6348BurntPoplarMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 724,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNc6348BurntPoplarMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 3,154,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNc6348BurntPoplarMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 3,878,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNc6348BurntPoplarMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 1,559,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNc6348BurntPoplarMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 3,878,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNc6348BurntPoplarMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 1,559,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNc6348BurntPoplarMember |  |  |
Greensboro, NC - 6348 Burnt Poplar [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Greensboro, NC - 6348 Burnt Poplar [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Greensboro, NC - 6350 Burnt Poplar [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 787,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNc6350BurntPoplarMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 2,038,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNc6350BurntPoplarMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 341,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNc6350BurntPoplarMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 1,374,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNc6350BurntPoplarMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 0 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNc6350BurntPoplarMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 323,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNc6350BurntPoplarMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 341,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNc6350BurntPoplarMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 1,697,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNc6350BurntPoplarMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 2,038,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNc6350BurntPoplarMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 787,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNc6350BurntPoplarMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 2,038,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNc6350BurntPoplarMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 787,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNc6350BurntPoplarMember |  |  |
Greensboro, NC - 6350 Burnt Poplar [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Greensboro, NC - 6350 Burnt Poplar [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Greensboro, NC - 420 Gallimore Dairy Road [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 935,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastBuilding1Member |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 2,365,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastBuilding1Member |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 379,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastBuilding1Member |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 1,516,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastBuilding1Member |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 0 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastBuilding1Member |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 470,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastBuilding1Member |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 379,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastBuilding1Member |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 1,986,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastBuilding1Member |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 2,365,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastBuilding1Member |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 935,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastBuilding1Member |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 2,365,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastBuilding1Member |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 935,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastBuilding1Member |  |  |
Greensboro, NC - 420 Gallimore Dairy Road [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Greensboro, NC - 420 Gallimore Dairy Road [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Greensboro, NC - 418 Gallimore Dairy Road [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 1,114,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastBuilding2Member |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 2,899,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastBuilding2Member |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 462,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastBuilding2Member |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 1,849,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastBuilding2Member |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 0 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastBuilding2Member |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 588,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastBuilding2Member |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 462,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastBuilding2Member |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 2,437,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastBuilding2Member |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 2,899,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastBuilding2Member |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 1,114,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastBuilding2Member |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 2,899,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastBuilding2Member |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 1,114,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastBuilding2Member |  |  |
Greensboro, NC - 418 Gallimore Dairy Road [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Greensboro, NC - 418 Gallimore Dairy Road [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Greensboro, NC - 416 Gallimore Dairy Road [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 876,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastBuilding3Member |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 2,047,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastBuilding3Member |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 322,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastBuilding3Member |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 1,293,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastBuilding3Member |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 0 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastBuilding3Member |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 432,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastBuilding3Member |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 322,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastBuilding3Member |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 1,725,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastBuilding3Member |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 2,047,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastBuilding3Member |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 876,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastBuilding3Member |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 2,047,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastBuilding3Member |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 876,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastBuilding3Member |  |  |
Greensboro, NC - 416 Gallimore Dairy Road [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Greensboro, NC - 416 Gallimore Dairy Road [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Greensboro, NC - 7031 Albert Pick Road [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 2,508,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastBuildingMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 5,741,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastBuildingMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 510,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastBuildingMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 2,921,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastBuildingMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 0 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastBuildingMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 2,310,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastBuildingMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 510,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastBuildingMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 5,231,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastBuildingMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 5,741,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastBuildingMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 2,508,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastBuildingMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 5,741,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastBuildingMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 2,508,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastBuildingMember |  |  |
Greensboro, NC - 7031 Albert Pick Road [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Greensboro, NC - 7031 Albert Pick Road [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Greensboro, NC - 7029 Albert Pick Road [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 2,241,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastBuildingBMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 5,495,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastBuildingBMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 739,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastBuildingBMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 3,237,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastBuildingBMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 0 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastBuildingBMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 1,519,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastBuildingBMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 739,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastBuildingBMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 4,756,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastBuildingBMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 5,495,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastBuildingBMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 2,241,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastBuildingBMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 5,495,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastBuildingBMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 2,241,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastBuildingBMember |  |  |
Greensboro, NC - 7029 Albert Pick Road [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Greensboro, NC - 7029 Albert Pick Road [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Greensboro, NC - 7025 Albert Pick Road [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 6,497,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastBuildingCMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 16,511,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastBuildingCMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 2,393,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastBuildingCMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 9,576,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastBuildingCMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 0 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastBuildingCMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 4,542,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastBuildingCMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 2,393,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastBuildingCMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 14,118,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastBuildingCMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 16,511,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastBuildingCMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 6,497,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastBuildingCMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 16,511,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastBuildingCMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 6,497,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastBuildingCMember |  |  |
Greensboro, NC - 7025 Albert Pick Road [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Greensboro, NC - 7025 Albert Pick Road [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Greensboro, NC - 7027 Albert Pick Road [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 1,749,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastBuildingDMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 5,565,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastBuildingDMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 850,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastBuildingDMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastBuildingDMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 699,000 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastBuildingDMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 4,016,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastBuildingDMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 1,549,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastBuildingDMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 4,016,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastBuildingDMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 5,565,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastBuildingDMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 1,749,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastBuildingDMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 5,565,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastBuildingDMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 1,749,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastBuildingDMember |  |  |
Greensboro, NC - 7027 Albert Pick Road [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Greensboro, NC - 7027 Albert Pick Road [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Greensboro, NC - 7009 Albert Pick Road [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 572,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastCopierConsultantsMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 1,498,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastCopierConsultantsMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 224,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastCopierConsultantsMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 1,068,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastCopierConsultantsMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 0 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastCopierConsultantsMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 206,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastCopierConsultantsMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 224,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastCopierConsultantsMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 1,274,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastCopierConsultantsMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 1,498,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastCopierConsultantsMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 572,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastCopierConsultantsMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 1,498,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastCopierConsultantsMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 572,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastCopierConsultantsMember |  |  |
Greensboro, NC - 7009 Albert Pick Road [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Greensboro, NC - 7009 Albert Pick Road [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Greensboro, NC - 426 Gallimore Dairy Road [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 494,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastHewlettpackardMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 2,015,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastHewlettpackardMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 465,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastHewlettpackardMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastHewlettpackardMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 380,000 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastHewlettpackardMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 1,170,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastHewlettpackardMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 845,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastHewlettpackardMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 1,170,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastHewlettpackardMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 2,015,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastHewlettpackardMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 494,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastHewlettpackardMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 2,015,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastHewlettpackardMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 494,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastHewlettpackardMember |  |  |
Greensboro, NC - 426 Gallimore Dairy Road [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Greensboro, NC - 426 Gallimore Dairy Road [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Greensboro, NC -422 Gallimore Dairy Road [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 684,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastHighlandMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 1,564,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastHighlandMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 145,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastHighlandMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 1,081,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastHighlandMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 0 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastHighlandMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 338,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastHighlandMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 145,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastHighlandMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 1,419,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastHighlandMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 1,564,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastHighlandMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 684,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastHighlandMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 1,564,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastHighlandMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 684,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastHighlandMember |  |  |
Greensboro, NC -422 Gallimore Dairy Road [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Greensboro, NC -422 Gallimore Dairy Road [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Greensboro, NC - 406 Gallimore Dairy Road [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 504,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastInacomBuildingMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 1,529,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastInacomBuildingMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 265,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastInacomBuildingMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastInacomBuildingMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 270,000 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastInacomBuildingMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 994,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastInacomBuildingMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 535,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastInacomBuildingMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 994,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastInacomBuildingMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 1,529,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastInacomBuildingMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 504,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastInacomBuildingMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 1,529,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastInacomBuildingMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 504,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastInacomBuildingMember |  |  |
Greensboro, NC - 406 Gallimore Dairy Road [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Greensboro, NC - 406 Gallimore Dairy Road [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Greensboro, NC - 7021 Albert Pick Road [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 643,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastServiceCenter1Member |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 1,620,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastServiceCenter1Member |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 237,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastServiceCenter1Member |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 1,103,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastServiceCenter1Member |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 0 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastServiceCenter1Member |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 280,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastServiceCenter1Member |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 237,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastServiceCenter1Member |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 1,383,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastServiceCenter1Member |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 1,620,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastServiceCenter1Member |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 643,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastServiceCenter1Member |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 1,620,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastServiceCenter1Member |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 643,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastServiceCenter1Member |  |  |
Greensboro, NC - 7021 Albert Pick Road [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Greensboro, NC - 7021 Albert Pick Road [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Greensboro, NC - 7019 Albert Pick Road [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 581,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastServiceCenter2Member |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 1,330,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastServiceCenter2Member |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 192,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastServiceCenter2Member |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 946,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastServiceCenter2Member |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 0 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastServiceCenter2Member |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 192,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastServiceCenter2Member |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 192,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastServiceCenter2Member |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 1,138,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastServiceCenter2Member |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 1,330,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastServiceCenter2Member |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 581,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastServiceCenter2Member |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 1,330,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastServiceCenter2Member |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 581,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastServiceCenter2Member |  |  |
Greensboro, NC - 7019 Albert Pick Road [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Greensboro, NC - 7019 Albert Pick Road [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Greensboro, NC - 7015 Albert Pick Road [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 759,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastServiceCenter3Member |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 1,880,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastServiceCenter3Member |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 305,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastServiceCenter3Member |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 1,219,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastServiceCenter3Member |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 0 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastServiceCenter3Member |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 356,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastServiceCenter3Member |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 305,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastServiceCenter3Member |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 1,575,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastServiceCenter3Member |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 1,880,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastServiceCenter3Member |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 759,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastServiceCenter3Member |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 1,880,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastServiceCenter3Member |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 759,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastServiceCenter3Member |  |  |
Greensboro, NC - 7015 Albert Pick Road [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Greensboro, NC - 7015 Albert Pick Road [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Greensboro, NC - 7017 Albert Pick Road [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 550,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastServiceCenter4Member |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 1,350,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastServiceCenter4Member |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 225,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastServiceCenter4Member |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 928,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastServiceCenter4Member |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 0 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastServiceCenter4Member |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 197,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastServiceCenter4Member |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 225,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastServiceCenter4Member |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 1,125,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastServiceCenter4Member |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 1,350,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastServiceCenter4Member |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 550,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastServiceCenter4Member |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 1,350,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastServiceCenter4Member |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 550,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastServiceCenter4Member |  |  |
Greensboro, NC - 7017 Albert Pick Road [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Greensboro, NC - 7017 Albert Pick Road [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Greensboro, NC - 7011 Albert Pick Road [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 514,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastServiceCourtMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 1,190,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastServiceCourtMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 171,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastServiceCourtMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 777,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastServiceCourtMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 0 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastServiceCourtMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 242,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastServiceCourtMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 171,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastServiceCourtMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 1,019,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastServiceCourtMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 1,190,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastServiceCourtMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 514,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastServiceCourtMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 1,190,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastServiceCourtMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 514,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastServiceCourtMember |  |  |
Greensboro, NC - 7011 Albert Pick Road [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Greensboro, NC - 7011 Albert Pick Road [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Greensboro, NC - 424 Gallimore Dairy Road [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 345,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastSimplexMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 1,329,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastSimplexMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 271,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastSimplexMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastSimplexMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 239,000 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastSimplexMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 819,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastSimplexMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 510,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastSimplexMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 819,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastSimplexMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 1,329,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastSimplexMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 345,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastSimplexMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 1,329,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastSimplexMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 345,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastSimplexMember |  |  |
Greensboro, NC - 424 Gallimore Dairy Road [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Greensboro, NC - 424 Gallimore Dairy Road [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Greensboro, NC - 410 Gallimore Dairy Road [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 966,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastWarehouse1Member |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 2,530,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastWarehouse1Member |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 356,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastWarehouse1Member |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 1,613,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastWarehouse1Member |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 0 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastWarehouse1Member |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 561,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastWarehouse1Member |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 356,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastWarehouse1Member |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 2,174,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastWarehouse1Member |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 2,530,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastWarehouse1Member |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 966,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastWarehouse1Member |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 2,530,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastWarehouse1Member |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 966,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastWarehouse1Member |  |  |
Greensboro, NC - 410 Gallimore Dairy Road [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Greensboro, NC - 410 Gallimore Dairy Road [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Greensboro, NC - 412 Gallimore Dairy Road [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 927,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastWarehouse2Member |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 2,326,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastWarehouse2Member |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 374,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastWarehouse2Member |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 1,523,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastWarehouse2Member |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 0 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastWarehouse2Member |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 429,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastWarehouse2Member |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 374,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastWarehouse2Member |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 1,952,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastWarehouse2Member |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 2,326,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastWarehouse2Member |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 927,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastWarehouse2Member |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 2,326,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastWarehouse2Member |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 927,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastWarehouse2Member |  |  |
Greensboro, NC - 412 Gallimore Dairy Road [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Greensboro, NC - 412 Gallimore Dairy Road [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Greensboro, NC - 408 Gallimore Dairy Road [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 1,174,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastWarehouse3Member |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 2,482,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastWarehouse3Member |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 341,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastWarehouse3Member |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 1,486,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastWarehouse3Member |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 0 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastWarehouse3Member |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 655,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastWarehouse3Member |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 341,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastWarehouse3Member |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 2,141,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastWarehouse3Member |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 2,482,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastWarehouse3Member |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 1,174,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastWarehouse3Member |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 2,482,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastWarehouse3Member |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 1,174,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastWarehouse3Member |  |  |
Greensboro, NC - 408 Gallimore Dairy Road [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Greensboro, NC - 408 Gallimore Dairy Road [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Greensboro, NC - 414 Gallimore Dairy Road [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 1,690,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastWarehouse4Member |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 3,998,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastWarehouse4Member |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 659,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastWarehouse4Member |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 2,676,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastWarehouse4Member |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 0 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastWarehouse4Member |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 663,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastWarehouse4Member |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 659,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastWarehouse4Member |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 3,339,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastWarehouse4Member |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 3,998,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastWarehouse4Member |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 1,690,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastWarehouse4Member |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 3,998,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastWarehouse4Member |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 1,690,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkEastWarehouse4Member |  |  |
Greensboro, NC - 414 Gallimore Dairy Road [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Greensboro, NC - 414 Gallimore Dairy Road [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Greensboro, NC - 237 Burgess Road [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 1,842,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkNorthDc1Member |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 4,458,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkNorthDc1Member |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 860,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkNorthDc1Member |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 2,919,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkNorthDc1Member |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 0 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkNorthDc1Member |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 679,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkNorthDc1Member |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 860,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkNorthDc1Member |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 3,598,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkNorthDc1Member |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 4,458,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkNorthDc1Member |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 1,842,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkNorthDc1Member |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 4,458,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkNorthDc1Member |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 1,842,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkNorthDc1Member |  |  |
Greensboro, NC - 237 Burgess Road [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Greensboro, NC - 237 Burgess Road [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Greensboro, NC - 235 Burgess Road [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 2,825,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkNorthDc2Member |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 6,718,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkNorthDc2Member |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 1,302,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkNorthDc2Member |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 4,392,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkNorthDc2Member |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 0 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkNorthDc2Member |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 1,024,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkNorthDc2Member |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 1,302,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkNorthDc2Member |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 5,416,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkNorthDc2Member |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 6,718,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkNorthDc2Member |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 2,825,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkNorthDc2Member |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 6,718,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkNorthDc2Member |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 2,825,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkNorthDc2Member |  |  |
Greensboro, NC - 235 Burgess Road [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Greensboro, NC - 235 Burgess Road [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Greensboro, NC - 241 Burgess Road [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 1,293,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkNorthDc3Member |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 2,972,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkNorthDc3Member |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 450,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkNorthDc3Member |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 1,517,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkNorthDc3Member |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 0 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkNorthDc3Member |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 1,005,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkNorthDc3Member |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 450,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkNorthDc3Member |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 2,522,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkNorthDc3Member |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 2,972,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkNorthDc3Member |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 1,293,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkNorthDc3Member |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 2,972,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkNorthDc3Member |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 1,293,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkNorthDc3Member |  |  |
Greensboro, NC - 241 Burgess Road [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Greensboro, NC - 241 Burgess Road [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Greensboro, NC - 243 Burgess Road [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 859,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkNorthDc4Member |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 2,123,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkNorthDc4Member |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 452,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkNorthDc4Member |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 1,514,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkNorthDc4Member |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 0 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkNorthDc4Member |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 157,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkNorthDc4Member |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 452,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkNorthDc4Member |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 1,671,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkNorthDc4Member |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 2,123,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkNorthDc4Member |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 859,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkNorthDc4Member |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 2,123,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkNorthDc4Member |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 859,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkNorthDc4Member |  |  |
Greensboro, NC - 243 Burgess Road [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Greensboro, NC - 243 Burgess Road [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Greensboro, NC - 496 Gallimore Dairy Road [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 1,261,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkSouthWarehouse1Member |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 3,226,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkSouthWarehouse1Member |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 546,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkSouthWarehouse1Member |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkSouthWarehouse1Member |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 0 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkSouthWarehouse1Member |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 2,680,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkSouthWarehouse1Member |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 546,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkSouthWarehouse1Member |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 2,680,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkSouthWarehouse1Member |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 3,226,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkSouthWarehouse1Member |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 1,261,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkSouthWarehouse1Member |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 3,226,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkSouthWarehouse1Member |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 1,261,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkSouthWarehouse1Member |  |  |
Greensboro, NC - 496 Gallimore Dairy Road [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Greensboro, NC - 496 Gallimore Dairy Road [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Greensboro, NC - 494 Gallimore Dairy Road [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 983,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkSouthWarehouse2Member |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 3,266,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkSouthWarehouse2Member |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 749,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkSouthWarehouse2Member |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkSouthWarehouse2Member |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 0 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkSouthWarehouse2Member |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 2,517,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkSouthWarehouse2Member |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 749,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkSouthWarehouse2Member |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 2,517,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkSouthWarehouse2Member |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 3,266,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkSouthWarehouse2Member |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 983,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkSouthWarehouse2Member |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 3,266,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkSouthWarehouse2Member |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 983,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkSouthWarehouse2Member |  |  |
Greensboro, NC - 494 Gallimore Dairy Road [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Greensboro, NC - 494 Gallimore Dairy Road [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Greensboro, NC - 486 Gallimore Dairy Road [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 844,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkSouthWarehouse3Member |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 2,876,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkSouthWarehouse3Member |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 603,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkSouthWarehouse3Member |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkSouthWarehouse3Member |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 0 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkSouthWarehouse3Member |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 2,273,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkSouthWarehouse3Member |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 603,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkSouthWarehouse3Member |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 2,273,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkSouthWarehouse3Member |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 2,876,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkSouthWarehouse3Member |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 844,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkSouthWarehouse3Member |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 2,876,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkSouthWarehouse3Member |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 844,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkSouthWarehouse3Member |  |  |
Greensboro, NC - 486 Gallimore Dairy Road [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Greensboro, NC - 486 Gallimore Dairy Road [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Greensboro, NC - 488 Gallimore Dairy Road [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 740,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkSouthWarehouse4Member |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 2,569,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkSouthWarehouse4Member |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 499,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkSouthWarehouse4Member |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkSouthWarehouse4Member |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 0 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkSouthWarehouse4Member |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 2,070,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkSouthWarehouse4Member |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 499,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkSouthWarehouse4Member |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 2,070,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkSouthWarehouse4Member |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 2,569,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkSouthWarehouse4Member |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 740,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkSouthWarehouse4Member |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 2,569,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkSouthWarehouse4Member |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 740,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkSouthWarehouse4Member |  |  |
Greensboro, NC - 488 Gallimore Dairy Road [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Greensboro, NC - 488 Gallimore Dairy Road [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Greensboro, NC - 490 Gallimore Dairy Road [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 3,184,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkSouthWarehouse6Member |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 7,640,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkSouthWarehouse6Member |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 1,733,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkSouthWarehouse6Member |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkSouthWarehouse6Member |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 0 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkSouthWarehouse6Member |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 5,907,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkSouthWarehouse6Member |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 1,733,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkSouthWarehouse6Member |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 5,907,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkSouthWarehouse6Member |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 7,640,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkSouthWarehouse6Member |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 3,184,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkSouthWarehouse6Member |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 7,640,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkSouthWarehouse6Member |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 3,184,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcAirparkSouthWarehouse6Member |  |  |
Greensboro, NC - 490 Gallimore Dairy Road [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Greensboro, NC - 490 Gallimore Dairy Road [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Greensboro, NC - Brigham Road - Land [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 0 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcBrighamRoadLandMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 3,339,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcBrighamRoadLandMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 7,059,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcBrighamRoadLandMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcBrighamRoadLandMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | (3,720,000)hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcBrighamRoadLandMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcBrighamRoadLandMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 3,339,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcBrighamRoadLandMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcBrighamRoadLandMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 3,339,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcBrighamRoadLandMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 0 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcBrighamRoadLandMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 3,339,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcBrighamRoadLandMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 0 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcBrighamRoadLandMember |  |  |
Greensboro, NC - 651 Brigham Road [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 1,069,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcEnterpriseWarehouseIMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 3,798,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcEnterpriseWarehouseIMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 453,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcEnterpriseWarehouseIMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcEnterpriseWarehouseIMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 360,000 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcEnterpriseWarehouseIMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 2,985,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcEnterpriseWarehouseIMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 813,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcEnterpriseWarehouseIMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 2,985,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcEnterpriseWarehouseIMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 3,798,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcEnterpriseWarehouseIMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 1,069,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcEnterpriseWarehouseIMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 3,798,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcEnterpriseWarehouseIMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 1,069,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcEnterpriseWarehouseIMember |  |  |
Greensboro, NC - 651 Brigham Road [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Greensboro, NC - 651 Brigham Road [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Greensboro, NC - 657 Brigham Road [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 2,649,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcEnterpriseWarehouseIiMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 14,716,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcEnterpriseWarehouseIiMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 2,733,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcEnterpriseWarehouseIiMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcEnterpriseWarehouseIiMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 881,000 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcEnterpriseWarehouseIiMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 11,102,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcEnterpriseWarehouseIiMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 3,614,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcEnterpriseWarehouseIiMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 11,102,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcEnterpriseWarehouseIiMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 14,716,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcEnterpriseWarehouseIiMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 2,649,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcEnterpriseWarehouseIiMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 14,716,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcEnterpriseWarehouseIiMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 2,649,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcEnterpriseWarehouseIiMember |  |  |
Greensboro, NC - 657 Brigham Road [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Greensboro, NC - 657 Brigham Road [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Greensboro, NC - 653 Brigham Road [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 633,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcEnterpriseWarehouseIiiMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 4,401,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcEnterpriseWarehouseIiiMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 814,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcEnterpriseWarehouseIiiMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcEnterpriseWarehouseIiiMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 0 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcEnterpriseWarehouseIiiMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 3,587,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcEnterpriseWarehouseIiiMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 814,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcEnterpriseWarehouseIiiMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 3,587,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcEnterpriseWarehouseIiiMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 4,401,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcEnterpriseWarehouseIiiMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 633,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcEnterpriseWarehouseIiiMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 4,401,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcEnterpriseWarehouseIiiMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 633,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcEnterpriseWarehouseIiiMember |  |  |
Greensboro, NC - 653 Brigham Road [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Greensboro, NC - 653 Brigham Road [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Greensboro, NC - 1501 Highwoods Boulevard [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 2,554,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcHighwoodsParkBuildingIMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 9,434,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcHighwoodsParkBuildingIMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 1,476,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcHighwoodsParkBuildingIMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcHighwoodsParkBuildingIMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 0 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcHighwoodsParkBuildingIMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 7,958,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcHighwoodsParkBuildingIMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 1,476,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcHighwoodsParkBuildingIMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 7,958,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcHighwoodsParkBuildingIMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 9,434,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcHighwoodsParkBuildingIMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 2,554,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcHighwoodsParkBuildingIMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 9,434,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcHighwoodsParkBuildingIMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 2,554,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcHighwoodsParkBuildingIMember |  |  |
Greensboro, NC - 1501 Highwoods Boulevard [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Greensboro, NC - 1501 Highwoods Boulevard [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Greensboro, NC - Jefferson Pilot Land [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 0 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcJeffersonPilotLandMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 7,448,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcJeffersonPilotLandMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 11,759,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcJeffersonPilotLandMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcJeffersonPilotLandMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | (4,311,000)hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcJeffersonPilotLandMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcJeffersonPilotLandMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 7,448,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcJeffersonPilotLandMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcJeffersonPilotLandMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 7,448,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcJeffersonPilotLandMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 0 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcJeffersonPilotLandMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 7,448,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcJeffersonPilotLandMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 0 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcJeffersonPilotLandMember |  |  |
Greensboro, NC - 4200 Tudor Lane [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 1,017,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcRegencyOnePiedmontCenterMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 3,153,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcRegencyOnePiedmontCenterMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 515,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcRegencyOnePiedmontCenterMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcRegencyOnePiedmontCenterMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 383,000 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcRegencyOnePiedmontCenterMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 2,255,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcRegencyOnePiedmontCenterMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 898,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcRegencyOnePiedmontCenterMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 2,255,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcRegencyOnePiedmontCenterMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 3,153,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcRegencyOnePiedmontCenterMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 1,017,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcRegencyOnePiedmontCenterMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 3,153,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcRegencyOnePiedmontCenterMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 1,017,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcRegencyOnePiedmontCenterMember |  |  |
Greensboro, NC - 4200 Tudor Lane [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Greensboro, NC - 4200 Tudor Lane [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Greensboro, NC - 4224 Tudor Lane [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 770,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcRegencyTwoPiedmontCenterMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 2,804,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcRegencyTwoPiedmontCenterMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 435,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcRegencyTwoPiedmontCenterMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcRegencyTwoPiedmontCenterMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 288,000 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcRegencyTwoPiedmontCenterMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 2,081,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcRegencyTwoPiedmontCenterMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 723,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcRegencyTwoPiedmontCenterMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 2,081,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcRegencyTwoPiedmontCenterMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 2,804,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcRegencyTwoPiedmontCenterMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 770,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcRegencyTwoPiedmontCenterMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 2,804,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcRegencyTwoPiedmontCenterMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 770,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcRegencyTwoPiedmontCenterMember |  |  |
Greensboro, NC - 4224 Tudor Lane [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Greensboro, NC - 4224 Tudor Lane [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Greensboro, NC - 7023 Albert Pick [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 1,985,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNc7023AlbertPickMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 5,045,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNc7023AlbertPickMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 834,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNc7023AlbertPickMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 3,459,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNc7023AlbertPickMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 0 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNc7023AlbertPickMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 752,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNc7023AlbertPickMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 834,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNc7023AlbertPickMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 4,211,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNc7023AlbertPickMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 5,045,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNc7023AlbertPickMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 1,985,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNc7023AlbertPickMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 5,045,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNc7023AlbertPickMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 1,985,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNc7023AlbertPickMember |  |  |
Greensboro, NC - 7023 Albert Pick [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Greensboro, NC - 7023 Albert Pick [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Greensboro, NC - 370 Knollwood Street [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 4,613,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcKnollwood370Member |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 12,825,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcKnollwood370Member |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 1,826,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcKnollwood370Member |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 7,495,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcKnollwood370Member |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 0 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcKnollwood370Member |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 3,504,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcKnollwood370Member |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 1,826,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcKnollwood370Member |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 10,999,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcKnollwood370Member |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 12,825,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcKnollwood370Member |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 4,613,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcKnollwood370Member |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 12,825,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcKnollwood370Member |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 4,613,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcKnollwood370Member |  |  |
Greensboro, NC - 370 Knollwood Street [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Greensboro, NC - 370 Knollwood Street [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Greensboro, NC - 380 Knollwood Street [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 7,774,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcKnollwood380Member |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 18,857,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcKnollwood380Member |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 2,989,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcKnollwood380Member |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 12,029,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcKnollwood380Member |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 0 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcKnollwood380Member |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 3,839,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcKnollwood380Member |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 2,989,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcKnollwood380Member |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 15,868,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcKnollwood380Member |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 18,857,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcKnollwood380Member |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 7,774,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcKnollwood380Member |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 18,857,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcKnollwood380Member |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 7,774,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcKnollwood380Member |  |  |
Greensboro, NC - 380 Knollwood Street [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Greensboro, NC - 380 Knollwood Street [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Greensboro, NC - 799 Hanes Mall Boulevard [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 4,939,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcUsAirwaysMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 13,026,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcUsAirwaysMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 1,450,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcUsAirwaysMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 11,375,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcUsAirwaysMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 0 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcUsAirwaysMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 201,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcUsAirwaysMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 1,450,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcUsAirwaysMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 11,576,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcUsAirwaysMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 13,026,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcUsAirwaysMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 4,939,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcUsAirwaysMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 13,026,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcUsAirwaysMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 4,939,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcUsAirwaysMember |  |  |
Greensboro, NC - 799 Hanes Mall Boulevard [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Greensboro, NC - 799 Hanes Mall Boulevard [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Greensboro, NC - 3901 Westpoint Boulevard [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 737,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcWestpointBusinessParkLuwabahnsonMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 1,864,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcWestpointBusinessParkLuwabahnsonMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 347,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcWestpointBusinessParkLuwabahnsonMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 1,389,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcWestpointBusinessParkLuwabahnsonMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 0 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcWestpointBusinessParkLuwabahnsonMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 128,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcWestpointBusinessParkLuwabahnsonMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 347,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcWestpointBusinessParkLuwabahnsonMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 1,517,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcWestpointBusinessParkLuwabahnsonMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 1,864,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcWestpointBusinessParkLuwabahnsonMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 737,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcWestpointBusinessParkLuwabahnsonMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 1,864,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcWestpointBusinessParkLuwabahnsonMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 737,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcWestpointBusinessParkLuwabahnsonMember |  |  |
Greensboro, NC - 3901 Westpoint Boulevard [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Greensboro, NC - 3901 Westpoint Boulevard [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Greensboro, NC - Church Street Medical Center I [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 663,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcChurchStreetMedicalIMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 12,058,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcChurchStreetMedicalIMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 2,734,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcChurchStreetMedicalIMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 9,129,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcChurchStreetMedicalIMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 0 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcChurchStreetMedicalIMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 195,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcChurchStreetMedicalIMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 2,734,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcChurchStreetMedicalIMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 9,324,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcChurchStreetMedicalIMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 12,058,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcChurchStreetMedicalIMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 663,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcChurchStreetMedicalIMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 12,058,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcChurchStreetMedicalIMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 663,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcChurchStreetMedicalIMember |  |  |
Greensboro, NC - Church Street Medical Center I [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Greensboro, NC - Church Street Medical Center I [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Greensboro, NC - Church Street Medical Center II [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 626,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcChurchStreetMedicalIiMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 7,869,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcChurchStreetMedicalIiMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 2,376,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcChurchStreetMedicalIiMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 5,451,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcChurchStreetMedicalIiMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 0 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcChurchStreetMedicalIiMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 42,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcChurchStreetMedicalIiMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 2,376,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcChurchStreetMedicalIiMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 5,493,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcChurchStreetMedicalIiMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 7,869,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcChurchStreetMedicalIiMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 626,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcChurchStreetMedicalIiMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 7,869,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcChurchStreetMedicalIiMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 626,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcChurchStreetMedicalIiMember |  |  |
Greensboro, NC - Church Street Medical Center II [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Greensboro, NC - Church Street Medical Center II [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Greensboro, NC - Church Street Medical Center III [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 463,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcChurchStreetMedicalIiiMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 5,589,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcChurchStreetMedicalIiiMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 925,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcChurchStreetMedicalIiiMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 4,551,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcChurchStreetMedicalIiiMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 0 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcChurchStreetMedicalIiiMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 113,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcChurchStreetMedicalIiiMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 925,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcChurchStreetMedicalIiiMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 4,664,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcChurchStreetMedicalIiiMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 5,589,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcChurchStreetMedicalIiiMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 463,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcChurchStreetMedicalIiiMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 5,589,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcChurchStreetMedicalIiiMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 463,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNcChurchStreetMedicalIiiMember |  |  |
Greensboro, NC - Church Street Medical Center III [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Greensboro, NC - Church Street Medical Center III [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Greensboro, NC - 628 Green Valley [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 763,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNC628GreenValleyMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 15,809,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNC628GreenValleyMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 2,906,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNC628GreenValleyMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 12,141,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNC628GreenValleyMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 0 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNC628GreenValleyMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 762,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNC628GreenValleyMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 2,906,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNC628GreenValleyMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 12,903,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNC628GreenValleyMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 15,809,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNC628GreenValleyMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 763,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNC628GreenValleyMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 15,809,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNC628GreenValleyMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 763,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNC628GreenValleyMember |  |  |
Greensboro, NC - 628 Green Valley [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Greensboro, NC - 628 Green Valley [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Greensboro, NC - 701 Green Valley [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 738,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNC701GreenValleyMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 12,265,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNC701GreenValleyMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 3,787,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNC701GreenValleyMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 7,719,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNC701GreenValleyMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 0 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNC701GreenValleyMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 759,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNC701GreenValleyMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 3,787,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNC701GreenValleyMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 8,478,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNC701GreenValleyMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 12,265,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNC701GreenValleyMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 738,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNC701GreenValleyMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 12,265,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNC701GreenValleyMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 738,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PiedmontTriadNC701GreenValleyMember |  |  |
Greensboro, NC - 701 Green Valley [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Greensboro, NC - 701 Green Valley [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Pittsburgh, PA - One PPG Place [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 14,851,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PittsburghPaPpgIMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 150,819,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PittsburghPaPpgIMember |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Real Estate and Accumulated Depreciation, Encumbrances | 115,229,000 us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PittsburghPaPpgIMember | [3] |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 9,819,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PittsburghPaPpgIMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 107,643,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PittsburghPaPpgIMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 0 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PittsburghPaPpgIMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 33,357,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PittsburghPaPpgIMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 9,819,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PittsburghPaPpgIMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 141,000,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PittsburghPaPpgIMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 150,819,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PittsburghPaPpgIMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 14,851,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PittsburghPaPpgIMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 150,819,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PittsburghPaPpgIMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 14,851,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PittsburghPaPpgIMember |  |  |
Pittsburgh, PA - One PPG Place [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Pittsburgh, PA - One PPG Place [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Pittsburgh, PA - Two PPG Place - Office [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 1,451,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PittsburghPaPpgIiOfficeMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 14,670,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PittsburghPaPpgIiOfficeMember |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Real Estate and Accumulated Depreciation, Encumbrances | 115,229,000 us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PittsburghPaPpgIiOfficeMember | [3] |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 2,302,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PittsburghPaPpgIiOfficeMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 10,978,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PittsburghPaPpgIiOfficeMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 0 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PittsburghPaPpgIiOfficeMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 1,390,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PittsburghPaPpgIiOfficeMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 2,302,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PittsburghPaPpgIiOfficeMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 12,368,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PittsburghPaPpgIiOfficeMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 14,670,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PittsburghPaPpgIiOfficeMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 1,451,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PittsburghPaPpgIiOfficeMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 14,670,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PittsburghPaPpgIiOfficeMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 1,451,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PittsburghPaPpgIiOfficeMember |  |  |
Pittsburgh, PA - Two PPG Place - Office [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Pittsburgh, PA - Two PPG Place - Office [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Pittsburgh, PA - Three PPG Place [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 457,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PittsburghPaPpgIiiMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 6,372,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PittsburghPaPpgIiiMember |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Real Estate and Accumulated Depreciation, Encumbrances | 115,229,000 us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PittsburghPaPpgIiiMember | [3] |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 501,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PittsburghPaPpgIiiMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 2,923,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PittsburghPaPpgIiiMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 0 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PittsburghPaPpgIiiMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 2,948,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PittsburghPaPpgIiiMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 501,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PittsburghPaPpgIiiMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 5,871,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PittsburghPaPpgIiiMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 6,372,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PittsburghPaPpgIiiMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 457,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PittsburghPaPpgIiiMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 6,372,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PittsburghPaPpgIiiMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 457,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PittsburghPaPpgIiiMember |  |  |
Pittsburgh, PA - Three PPG Place [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Pittsburgh, PA - Three PPG Place [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Pittsburgh, PA - Four PPG Place [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 494,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PittsburghPaPpgIvMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 4,795,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PittsburghPaPpgIvMember |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Real Estate and Accumulated Depreciation, Encumbrances | 115,229,000 us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PittsburghPaPpgIvMember | [3] |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 620,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PittsburghPaPpgIvMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 3,239,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PittsburghPaPpgIvMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 0 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PittsburghPaPpgIvMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 936,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PittsburghPaPpgIvMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 620,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PittsburghPaPpgIvMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 4,175,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PittsburghPaPpgIvMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 4,795,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PittsburghPaPpgIvMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 494,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PittsburghPaPpgIvMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 4,795,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PittsburghPaPpgIvMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 494,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PittsburghPaPpgIvMember |  |  |
Pittsburgh, PA - Four PPG Place [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Pittsburgh, PA - Four PPG Place [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Pittsburgh, PA - Five PPG Place [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 844,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PittsburghPaPpgVMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 7,266,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PittsburghPaPpgVMember |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Real Estate and Accumulated Depreciation, Encumbrances | 115,229,000 us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PittsburghPaPpgVMember | [3] |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 803,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PittsburghPaPpgVMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 4,924,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PittsburghPaPpgVMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 0 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PittsburghPaPpgVMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 1,539,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PittsburghPaPpgVMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 803,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PittsburghPaPpgVMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 6,463,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PittsburghPaPpgVMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 7,266,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PittsburghPaPpgVMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 844,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PittsburghPaPpgVMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 7,266,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PittsburghPaPpgVMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 844,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PittsburghPaPpgVMember |  |  |
Pittsburgh, PA - Five PPG Place [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Pittsburgh, PA - Five PPG Place [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Pittsburgh, PA - Six PPG Place [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 4,890,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PittsburghPaPpgViMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 35,388,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PittsburghPaPpgViMember |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Real Estate and Accumulated Depreciation, Encumbrances | 115,229,000 us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PittsburghPaPpgViMember | [3] |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 3,353,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PittsburghPaPpgViMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 25,602,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PittsburghPaPpgViMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 0 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PittsburghPaPpgViMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 6,433,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PittsburghPaPpgViMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 3,353,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PittsburghPaPpgViMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 32,035,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PittsburghPaPpgViMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 35,388,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PittsburghPaPpgViMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 4,890,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PittsburghPaPpgViMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 35,388,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PittsburghPaPpgViMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 4,890,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PittsburghPaPpgViMember |  |  |
Pittsburgh, PA - Six PPG Place [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Pittsburgh, PA - Six PPG Place [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Pittsburgh, PA - EQT Plaza [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 7,229,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PittsburghPaEqtPlazaMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 89,977,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PittsburghPaEqtPlazaMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PittsburghPaEqtPlazaMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 83,812,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PittsburghPaEqtPlazaMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 0 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PittsburghPaEqtPlazaMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 6,165,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PittsburghPaEqtPlazaMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 0 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PittsburghPaEqtPlazaMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 89,977,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PittsburghPaEqtPlazaMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 89,977,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PittsburghPaEqtPlazaMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 7,229,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PittsburghPaEqtPlazaMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 89,977,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PittsburghPaEqtPlazaMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 7,229,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_PittsburghPaEqtPlazaMember |  |  |
Pittsburgh, PA - EQT Plaza [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Pittsburgh, PA - EQT Plaza [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Raleigh, NC - 3600 Glenwood Avenue [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 6,969,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNc3600GlenwoodAvenueMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 15,723,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNc3600GlenwoodAvenueMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNc3600GlenwoodAvenueMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 10,994,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNc3600GlenwoodAvenueMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 0 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNc3600GlenwoodAvenueMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 4,729,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNc3600GlenwoodAvenueMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 0 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNc3600GlenwoodAvenueMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 15,723,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNc3600GlenwoodAvenueMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 15,723,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNc3600GlenwoodAvenueMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 6,969,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNc3600GlenwoodAvenueMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 15,723,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNc3600GlenwoodAvenueMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 6,969,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNc3600GlenwoodAvenueMember |  |  |
Raleigh, NC - 3600 Glenwood Avenue [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Raleigh, NC - 3600 Glenwood Avenue [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Raleigh, NC - 3737 Glenwood Avenue [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 5,910,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNc3737GlenwoodAvenueMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 15,740,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNc3737GlenwoodAvenueMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNc3737GlenwoodAvenueMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNc3737GlenwoodAvenueMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 318,000 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNc3737GlenwoodAvenueMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 15,422,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNc3737GlenwoodAvenueMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 318,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNc3737GlenwoodAvenueMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 15,422,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNc3737GlenwoodAvenueMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 15,740,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNc3737GlenwoodAvenueMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 5,910,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNc3737GlenwoodAvenueMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 15,740,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNc3737GlenwoodAvenueMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 5,910,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNc3737GlenwoodAvenueMember |  |  |
Raleigh, NC - 3737 Glenwood Avenue [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Raleigh, NC - 3737 Glenwood Avenue [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Raleigh, NC - 4800 North Park [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 13,143,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNc4800NorthParkMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 27,906,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNc4800NorthParkMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 2,678,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNc4800NorthParkMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 17,630,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNc4800NorthParkMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 0 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNc4800NorthParkMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 7,598,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNc4800NorthParkMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 2,678,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNc4800NorthParkMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 25,228,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNc4800NorthParkMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 27,906,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNc4800NorthParkMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 13,143,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNc4800NorthParkMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 27,906,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNc4800NorthParkMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 13,143,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNc4800NorthParkMember |  |  |
Raleigh, NC - 4800 North Park [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Raleigh, NC - 4800 North Park [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Raleigh, NC - 4900 North Park [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 1,552,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNc4900NorthParkMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 4,580,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNc4900NorthParkMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 770,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNc4900NorthParkMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 1,983,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNc4900NorthParkMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 0 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNc4900NorthParkMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 1,827,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNc4900NorthParkMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 770,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNc4900NorthParkMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 3,810,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNc4900NorthParkMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 4,580,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNc4900NorthParkMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 1,552,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNc4900NorthParkMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 4,580,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNc4900NorthParkMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 1,552,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNc4900NorthParkMember |  |  |
Raleigh, NC - 4900 North Park [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Raleigh, NC - 4900 North Park [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Raleigh, NC - 5000 North Park [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 3,957,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNc5000NorthParkMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 8,253,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNc5000NorthParkMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 1,010,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNc5000NorthParkMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 4,612,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNc5000NorthParkMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | (49,000)hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNc5000NorthParkMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 2,680,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNc5000NorthParkMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 961,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNc5000NorthParkMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 7,292,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNc5000NorthParkMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 8,253,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNc5000NorthParkMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 3,957,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNc5000NorthParkMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 8,253,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNc5000NorthParkMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 3,957,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNc5000NorthParkMember |  |  |
Raleigh, NC - 5000 North Park [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Raleigh, NC - 5000 North Park [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Raleigh, NC - 801 Raleigh Corporate Center [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 3,306,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNc801CorporateCenterMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 11,090,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNc801CorporateCenterMember |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Real Estate and Accumulated Depreciation, Encumbrances | 107,556,000 us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNc801CorporateCenterMember | [2] |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 828,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNc801CorporateCenterMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNc801CorporateCenterMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 272,000 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNc801CorporateCenterMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 9,990,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNc801CorporateCenterMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 1,100,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNc801CorporateCenterMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 9,990,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNc801CorporateCenterMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 11,090,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNc801CorporateCenterMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 3,306,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNc801CorporateCenterMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 11,090,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNc801CorporateCenterMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 3,306,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNc801CorporateCenterMember |  |  |
Raleigh, NC - 801 Raleigh Corporate Center [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Raleigh, NC - 801 Raleigh Corporate Center [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Raleigh, NC - Blue Ridge I [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 2,969,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcBlueRidgeIMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 6,663,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcBlueRidgeIMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 722,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcBlueRidgeIMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 4,606,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcBlueRidgeIMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 0 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcBlueRidgeIMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 1,335,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcBlueRidgeIMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 722,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcBlueRidgeIMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 5,941,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcBlueRidgeIMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 6,663,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcBlueRidgeIMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 2,969,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcBlueRidgeIMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 6,663,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcBlueRidgeIMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 2,969,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcBlueRidgeIMember |  |  |
Raleigh, NC - Blue Ridge I [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Raleigh, NC - Blue Ridge I [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Raleigh, NC - Blue Ridge II [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 1,254,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcBlueRidgeIiMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 2,451,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcBlueRidgeIiMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 462,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcBlueRidgeIiMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 1,410,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcBlueRidgeIiMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 0 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcBlueRidgeIiMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 579,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcBlueRidgeIiMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 462,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcBlueRidgeIiMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 1,989,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcBlueRidgeIiMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 2,451,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcBlueRidgeIiMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 1,254,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcBlueRidgeIiMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 2,451,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcBlueRidgeIiMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 1,254,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcBlueRidgeIiMember |  |  |
Raleigh, NC - Blue Ridge II [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Raleigh, NC - Blue Ridge II [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Raleigh, NC - Cape Fear [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 2,206,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcCapeFearMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 2,579,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcCapeFearMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 131,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcCapeFearMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 1,630,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcCapeFearMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | (2,000)hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcCapeFearMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 820,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcCapeFearMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 129,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcCapeFearMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 2,450,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcCapeFearMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 2,579,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcCapeFearMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 2,206,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcCapeFearMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 2,579,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcCapeFearMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 2,206,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcCapeFearMember |  |  |
Raleigh, NC - Cape Fear [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Raleigh, NC - Cape Fear [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Raleigh, NC - Catawba [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 3,224,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcCatawbaMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 3,973,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcCatawbaMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 125,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcCatawbaMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 1,635,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcCatawbaMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | (2,000)hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcCatawbaMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 2,215,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcCatawbaMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 123,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcCatawbaMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 3,850,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcCatawbaMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 3,973,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcCatawbaMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 3,224,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcCatawbaMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 3,973,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcCatawbaMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 3,224,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcCatawbaMember |  |  |
Raleigh, NC - Catawba [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Raleigh, NC - Catawba [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Raleigh, NC - CentreGreen One [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 3,601,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcCentregreenOneWestonMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 11,382,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcCentregreenOneWestonMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 1,529,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcCentregreenOneWestonMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcCentregreenOneWestonMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | (391,000)hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcCentregreenOneWestonMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 10,244,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcCentregreenOneWestonMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 1,138,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcCentregreenOneWestonMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 10,244,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcCentregreenOneWestonMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 11,382,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcCentregreenOneWestonMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 3,601,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcCentregreenOneWestonMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 11,382,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcCentregreenOneWestonMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 3,601,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcCentregreenOneWestonMember |  |  |
Raleigh, NC - CentreGreen One [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Raleigh, NC - CentreGreen One [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Raleigh, NC - CentreGreen Two [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 2,727,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcCentregreenTwoWestonMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 10,351,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcCentregreenTwoWestonMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 1,653,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcCentregreenTwoWestonMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcCentregreenTwoWestonMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | (389,000)hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcCentregreenTwoWestonMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 9,087,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcCentregreenTwoWestonMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 1,264,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcCentregreenTwoWestonMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 9,087,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcCentregreenTwoWestonMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 10,351,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcCentregreenTwoWestonMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 2,727,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcCentregreenTwoWestonMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 10,351,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcCentregreenTwoWestonMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 2,727,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcCentregreenTwoWestonMember |  |  |
Raleigh, NC - CentreGreen Two [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Raleigh, NC - CentreGreen Two [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Raleigh, NC - CentreGreen Three - Land [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 0 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcCentregreenThreeLandWestonMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 1,291,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcCentregreenThreeLandWestonMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 1,876,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcCentregreenThreeLandWestonMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcCentregreenThreeLandWestonMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | (585,000)hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcCentregreenThreeLandWestonMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcCentregreenThreeLandWestonMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 1,291,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcCentregreenThreeLandWestonMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcCentregreenThreeLandWestonMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 1,291,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcCentregreenThreeLandWestonMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 0 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcCentregreenThreeLandWestonMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 1,291,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcCentregreenThreeLandWestonMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 0 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcCentregreenThreeLandWestonMember |  |  |
Raleigh, NC - CentreGreen Four [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 2,588,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcCentregreenFourMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 14,839,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcCentregreenFourMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 1,779,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcCentregreenFourMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcCentregreenFourMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | (397,000)hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcCentregreenFourMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 13,457,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcCentregreenFourMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 1,382,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcCentregreenFourMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 13,457,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcCentregreenFourMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 14,839,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcCentregreenFourMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 2,588,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcCentregreenFourMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 14,839,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcCentregreenFourMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 2,588,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcCentregreenFourMember |  |  |
Raleigh, NC - CentreGreen Four [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Raleigh, NC - CentreGreen Four [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Raleigh, NC - CentreGreen Five [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 3,556,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcCentregreenFiveMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 14,067,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcCentregreenFiveMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 1,280,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcCentregreenFiveMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcCentregreenFiveMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 55,000 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcCentregreenFiveMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 12,732,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcCentregreenFiveMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 1,335,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcCentregreenFiveMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 12,732,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcCentregreenFiveMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 14,067,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcCentregreenFiveMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 3,556,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcCentregreenFiveMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 14,067,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcCentregreenFiveMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 3,556,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcCentregreenFiveMember |  |  |
Raleigh, NC - CentreGreen Five [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Raleigh, NC - CentreGreen Five [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Raleigh, NC - Cottonwood [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 1,947,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcCottonwoodMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 4,287,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcCottonwoodMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 609,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcCottonwoodMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 3,244,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcCottonwoodMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 0 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcCottonwoodMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 434,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcCottonwoodMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 609,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcCottonwoodMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 3,678,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcCottonwoodMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 4,287,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcCottonwoodMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 1,947,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcCottonwoodMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 4,287,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcCottonwoodMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 1,947,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcCottonwoodMember |  |  |
Raleigh, NC - Cottonwood [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Raleigh, NC - Cottonwood [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Raleigh, NC - Dogwood [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 1,721,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcDogwoodMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 3,926,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcDogwoodMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 766,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcDogwoodMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 2,769,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcDogwoodMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 0 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcDogwoodMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 391,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcDogwoodMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 766,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcDogwoodMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 3,160,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcDogwoodMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 3,926,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcDogwoodMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 1,721,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcDogwoodMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 3,926,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcDogwoodMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 1,721,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcDogwoodMember |  |  |
Raleigh, NC - Dogwood [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Raleigh, NC - Dogwood [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Raleigh, NC - GlenLake Land [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 39,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcGlenlakeLandMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 4,758,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcGlenlakeLandMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 13,003,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcGlenlakeLandMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcGlenlakeLandMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | (8,359,000)hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcGlenlakeLandMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 114,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcGlenlakeLandMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 4,644,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcGlenlakeLandMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 114,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcGlenlakeLandMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 4,758,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcGlenlakeLandMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 39,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcGlenlakeLandMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 4,758,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcGlenlakeLandMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 39,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcGlenlakeLandMember |  |  |
Raleigh, NC - GlenLake Land [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Raleigh, NC - GlenLake Land [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Raleigh, NC - GlenLake One [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 6,365,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcGlenlakeBldgIMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 22,585,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcGlenlakeBldgIMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 924,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcGlenlakeBldgIMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcGlenlakeBldgIMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 1,324,000 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcGlenlakeBldgIMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 20,337,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcGlenlakeBldgIMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 2,248,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcGlenlakeBldgIMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 20,337,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcGlenlakeBldgIMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 22,585,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcGlenlakeBldgIMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 6,365,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcGlenlakeBldgIMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 22,585,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcGlenlakeBldgIMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 6,365,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcGlenlakeBldgIMember |  |  |
Raleigh, NC - GlenLake One [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Raleigh, NC - GlenLake One [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Raleigh, NC - GlenLake Four [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 6,122,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcGlenlakeFourMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 23,879,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcGlenlakeFourMember |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Real Estate and Accumulated Depreciation, Encumbrances | 107,556,000 us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcGlenlakeFourMember | [2] |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 1,659,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcGlenlakeFourMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcGlenlakeFourMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 493,000 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcGlenlakeFourMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 21,727,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcGlenlakeFourMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 2,152,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcGlenlakeFourMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 21,727,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcGlenlakeFourMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 23,879,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcGlenlakeFourMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 6,122,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcGlenlakeFourMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 23,879,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcGlenlakeFourMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 6,122,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcGlenlakeFourMember |  |  |
Raleigh, NC - GlenLake Four [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Raleigh, NC - GlenLake Four [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Raleigh, NC - GlenLake Six [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 5,395,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcGlenlakeSixMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 22,755,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcGlenlakeSixMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 941,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcGlenlakeSixMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcGlenlakeSixMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | (365,000)hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcGlenlakeSixMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 22,179,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcGlenlakeSixMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 576,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcGlenlakeSixMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 22,179,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcGlenlakeSixMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 22,755,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcGlenlakeSixMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 5,395,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcGlenlakeSixMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 22,755,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcGlenlakeSixMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 5,395,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcGlenlakeSixMember |  |  |
Raleigh, NC - GlenLake Six [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Raleigh, NC - GlenLake Six [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Raleigh, NC - 701 Raleigh Corporate Center [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 6,824,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcHealthsourceMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 15,800,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcHealthsourceMember |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Real Estate and Accumulated Depreciation, Encumbrances | 107,556,000 us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcHealthsourceMember | [2] |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 1,304,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcHealthsourceMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcHealthsourceMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 540,000 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcHealthsourceMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 13,956,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcHealthsourceMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 1,844,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcHealthsourceMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 13,956,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcHealthsourceMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 15,800,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcHealthsourceMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 6,824,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcHealthsourceMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 15,800,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcHealthsourceMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 6,824,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcHealthsourceMember |  |  |
Raleigh, NC - 701 Raleigh Corporate Center [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Raleigh, NC - 701 Raleigh Corporate Center [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Raleigh, NC - Highwoods Centre [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 3,495,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcHighwoodsCentreWestonMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 8,511,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcHighwoodsCentreWestonMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 531,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcHighwoodsCentreWestonMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcHighwoodsCentreWestonMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | (267,000)hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcHighwoodsCentreWestonMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 8,247,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcHighwoodsCentreWestonMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 264,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcHighwoodsCentreWestonMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 8,247,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcHighwoodsCentreWestonMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 8,511,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcHighwoodsCentreWestonMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 3,495,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcHighwoodsCentreWestonMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 8,511,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcHighwoodsCentreWestonMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 3,495,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcHighwoodsCentreWestonMember |  |  |
Raleigh, NC - Highwoods Centre [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Raleigh, NC - Highwoods Centre [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Raleigh, NC - Highwoods Office Center North Land [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 33,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcHighwoodsOfficeCenterNorthLandMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 406,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcHighwoodsOfficeCenterNorthLandMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 357,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcHighwoodsOfficeCenterNorthLandMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 49,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcHighwoodsOfficeCenterNorthLandMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 0 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcHighwoodsOfficeCenterNorthLandMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcHighwoodsOfficeCenterNorthLandMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 357,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcHighwoodsOfficeCenterNorthLandMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 49,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcHighwoodsOfficeCenterNorthLandMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 406,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcHighwoodsOfficeCenterNorthLandMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 33,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcHighwoodsOfficeCenterNorthLandMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 406,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcHighwoodsOfficeCenterNorthLandMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 33,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcHighwoodsOfficeCenterNorthLandMember |  |  |
Raleigh, NC - Highwoods Office Center North Land [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Raleigh, NC - Highwoods Office Center North Land [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Raleigh, NC - Highwoods Tower One [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 11,567,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcHighwoodsTowerOneMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 20,850,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcHighwoodsTowerOneMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 203,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcHighwoodsTowerOneMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 16,744,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcHighwoodsTowerOneMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 0 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcHighwoodsTowerOneMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 3,903,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcHighwoodsTowerOneMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 203,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcHighwoodsTowerOneMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 20,647,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcHighwoodsTowerOneMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 20,850,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcHighwoodsTowerOneMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 11,567,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcHighwoodsTowerOneMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 20,850,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcHighwoodsTowerOneMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 11,567,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcHighwoodsTowerOneMember |  |  |
Raleigh, NC - Highwoods Tower One [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Raleigh, NC - Highwoods Tower One [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Raleigh, NC - Highwoods Tower Two [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 7,383,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcHighwoodsTowerTwoMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 22,317,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcHighwoodsTowerTwoMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 365,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcHighwoodsTowerTwoMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcHighwoodsTowerTwoMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 503,000 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcHighwoodsTowerTwoMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 21,449,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcHighwoodsTowerTwoMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 868,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcHighwoodsTowerTwoMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 21,449,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcHighwoodsTowerTwoMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 22,317,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcHighwoodsTowerTwoMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 7,383,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcHighwoodsTowerTwoMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 22,317,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcHighwoodsTowerTwoMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 7,383,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcHighwoodsTowerTwoMember |  |  |
Raleigh, NC - Highwoods Tower Two [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Raleigh, NC - Highwoods Tower Two [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Raleigh, NC - Inveresk Land Parcel 2 [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 0 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcInvereskLandParcel2Member |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 695,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcInvereskLandParcel2Member |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 657,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcInvereskLandParcel2Member |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcInvereskLandParcel2Member |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 38,000 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcInvereskLandParcel2Member |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcInvereskLandParcel2Member |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 695,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcInvereskLandParcel2Member |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcInvereskLandParcel2Member |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 695,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcInvereskLandParcel2Member |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 0 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcInvereskLandParcel2Member |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 695,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcInvereskLandParcel2Member |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 0 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcInvereskLandParcel2Member |  |  |
Raleigh, NC - Lake Boone Medical Center [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 934,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcLakeBooneMedicalCenterMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 7,910,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcLakeBooneMedicalCenterMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 1,450,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcLakeBooneMedicalCenterMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 6,311,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcLakeBooneMedicalCenterMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 0 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcLakeBooneMedicalCenterMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 149,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcLakeBooneMedicalCenterMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 1,450,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcLakeBooneMedicalCenterMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 6,460,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcLakeBooneMedicalCenterMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 7,910,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcLakeBooneMedicalCenterMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 934,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcLakeBooneMedicalCenterMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 7,910,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcLakeBooneMedicalCenterMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 934,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcLakeBooneMedicalCenterMember |  |  |
Raleigh, NC - Lake Boone Medical Center [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Raleigh, NC - Lake Boone Medical Center [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Raleigh, NC - 4620 Creekstone Drive [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 1,257,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcMaplewoodMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 3,586,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcMaplewoodMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 149,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcMaplewoodMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcMaplewoodMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 107,000 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcMaplewoodMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 3,330,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcMaplewoodMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 256,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcMaplewoodMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 3,330,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcMaplewoodMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 3,586,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcMaplewoodMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 1,257,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcMaplewoodMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 3,586,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcMaplewoodMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 1,257,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcMaplewoodMember |  |  |
Raleigh, NC - 4620 Creekstone Drive [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Raleigh, NC - 4620 Creekstone Drive [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Raleigh, NC - 4825 Creekstone Drive [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 3,962,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcOverlookMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 10,730,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcOverlookMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 398,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcOverlookMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcOverlookMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 293,000 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcOverlookMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 10,039,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcOverlookMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 691,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcOverlookMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 10,039,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcOverlookMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 10,730,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcOverlookMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 3,962,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcOverlookMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 10,730,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcOverlookMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 3,962,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcOverlookMember |  |  |
Raleigh, NC - 4825 Creekstone Drive [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Raleigh, NC - 4825 Creekstone Drive [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Raleigh, NC - Pamlico [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 10,664,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcPamlicoMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 15,034,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcPamlicoMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 289,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcPamlicoMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcPamlicoMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 0 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcPamlicoMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 14,745,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcPamlicoMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 289,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcPamlicoMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 14,745,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcPamlicoMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 15,034,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcPamlicoMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 10,664,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcPamlicoMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 15,034,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcPamlicoMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 10,664,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcPamlicoMember |  |  |
Raleigh, NC - Pamlico [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Raleigh, NC - Pamlico [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Raleigh, NC - ParkWest One [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 1,097,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcParkwestOneWestonMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 3,532,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcParkwestOneWestonMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 242,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcParkwestOneWestonMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcParkwestOneWestonMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 0 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcParkwestOneWestonMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 3,290,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcParkwestOneWestonMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 242,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcParkwestOneWestonMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 3,290,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcParkwestOneWestonMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 3,532,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcParkwestOneWestonMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 1,097,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcParkwestOneWestonMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 3,532,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcParkwestOneWestonMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 1,097,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcParkwestOneWestonMember |  |  |
Raleigh, NC - ParkWest One [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Raleigh, NC - ParkWest One [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Raleigh, NC - ParkWest Two [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 1,908,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcParkwestTwoWestonMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 4,478,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcParkwestTwoWestonMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 356,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcParkwestTwoWestonMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcParkwestTwoWestonMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 0 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcParkwestTwoWestonMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 4,122,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcParkwestTwoWestonMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 356,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcParkwestTwoWestonMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 4,122,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcParkwestTwoWestonMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 4,478,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcParkwestTwoWestonMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 1,908,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcParkwestTwoWestonMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 4,478,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcParkwestTwoWestonMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 1,908,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcParkwestTwoWestonMember |  |  |
Raleigh, NC - ParkWest Two [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Raleigh, NC - ParkWest Two [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Raleigh, NC - ParkWest Three - Land - Weston [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 0 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcParkwestThreeLandWestonMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 385,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcParkwestThreeLandWestonMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 306,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcParkwestThreeLandWestonMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcParkwestThreeLandWestonMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 79,000 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcParkwestThreeLandWestonMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcParkwestThreeLandWestonMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 385,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcParkwestThreeLandWestonMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcParkwestThreeLandWestonMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 385,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcParkwestThreeLandWestonMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 0 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcParkwestThreeLandWestonMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 385,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcParkwestThreeLandWestonMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 0 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcParkwestThreeLandWestonMember |  |  |
Raleigh, NC - Progress Center Renovation [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 270,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcProgressCenterRenovationMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 362,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcProgressCenterRenovationMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcProgressCenterRenovationMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcProgressCenterRenovationMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 0 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcProgressCenterRenovationMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 362,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcProgressCenterRenovationMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 0 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcProgressCenterRenovationMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 362,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcProgressCenterRenovationMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 362,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcProgressCenterRenovationMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 270,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcProgressCenterRenovationMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 362,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcProgressCenterRenovationMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 270,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcProgressCenterRenovationMember |  |  |
Raleigh, NC - Progress Center Renovation [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Raleigh, NC - Progress Center Renovation [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Raleigh, NC - Raleigh Corp Center Lot D [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 0 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcRaleighCorpCenterLotDMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 1,219,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcRaleighCorpCenterLotDMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 1,211,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcRaleighCorpCenterLotDMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcRaleighCorpCenterLotDMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 8,000 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcRaleighCorpCenterLotDMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcRaleighCorpCenterLotDMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 1,219,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcRaleighCorpCenterLotDMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcRaleighCorpCenterLotDMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 1,219,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcRaleighCorpCenterLotDMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 0 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcRaleighCorpCenterLotDMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 1,219,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcRaleighCorpCenterLotDMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 0 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcRaleighCorpCenterLotDMember |  |  |
Raleigh, NC - PNC Plaza [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 14,760,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNCPNCPlazaMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 73,418,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNCPNCPlazaMember |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Real Estate and Accumulated Depreciation, Encumbrances | 44,501,000 us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNCPNCPlazaMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 1,206,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNCPNCPlazaMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNCPNCPlazaMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 0 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNCPNCPlazaMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 72,212,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNCPNCPlazaMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 1,206,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNCPNCPlazaMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 72,212,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNCPNCPlazaMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 73,418,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNCPNCPlazaMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 14,760,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNCPNCPlazaMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 73,418,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNCPNCPlazaMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 14,760,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNCPNCPlazaMember |  |  |
Raleigh, NC - PNC Plaza [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Raleigh, NC - PNC Plaza [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Raleigh, NC - Rexwoods Center I [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 3,143,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcRexwoodsCenterIMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 5,950,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcRexwoodsCenterIMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 878,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcRexwoodsCenterIMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 3,730,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcRexwoodsCenterIMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 0 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcRexwoodsCenterIMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 1,342,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcRexwoodsCenterIMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 878,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcRexwoodsCenterIMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 5,072,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcRexwoodsCenterIMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 5,950,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcRexwoodsCenterIMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 3,143,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcRexwoodsCenterIMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 5,950,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcRexwoodsCenterIMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 3,143,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcRexwoodsCenterIMember |  |  |
Raleigh, NC - Rexwoods Center I [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Raleigh, NC - Rexwoods Center I [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Raleigh, NC - Rexwoods Center II [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 1,190,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcRexwoodsCenterIiMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 3,221,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcRexwoodsCenterIiMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 362,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcRexwoodsCenterIiMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 1,818,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcRexwoodsCenterIiMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 0 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcRexwoodsCenterIiMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 1,041,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcRexwoodsCenterIiMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 362,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcRexwoodsCenterIiMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 2,859,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcRexwoodsCenterIiMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 3,221,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcRexwoodsCenterIiMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 1,190,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcRexwoodsCenterIiMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 3,221,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcRexwoodsCenterIiMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 1,190,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcRexwoodsCenterIiMember |  |  |
Raleigh, NC - Rexwoods Center II [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Raleigh, NC - Rexwoods Center II [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Raleigh, NC - Rexwoods Center III [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 2,181,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcRexwoodsCenterIiiMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 4,590,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcRexwoodsCenterIiiMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 919,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcRexwoodsCenterIiiMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 2,816,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcRexwoodsCenterIiiMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 0 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcRexwoodsCenterIiiMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 855,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcRexwoodsCenterIiiMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 919,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcRexwoodsCenterIiiMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 3,671,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcRexwoodsCenterIiiMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 4,590,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcRexwoodsCenterIiiMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 2,181,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcRexwoodsCenterIiiMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 4,590,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcRexwoodsCenterIiiMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 2,181,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcRexwoodsCenterIiiMember |  |  |
Raleigh, NC - Rexwoods Center III [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Raleigh, NC - Rexwoods Center III [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Raleigh, NC - Rexwoods Center IV [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 1,931,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcRexwoodsCenterIvMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 4,917,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcRexwoodsCenterIvMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 586,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcRexwoodsCenterIvMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcRexwoodsCenterIvMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 0 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcRexwoodsCenterIvMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 4,331,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcRexwoodsCenterIvMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 586,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcRexwoodsCenterIvMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 4,331,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcRexwoodsCenterIvMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 4,917,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcRexwoodsCenterIvMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 1,931,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcRexwoodsCenterIvMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 4,917,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcRexwoodsCenterIvMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 1,931,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcRexwoodsCenterIvMember |  |  |
Raleigh, NC - Rexwoods Center IV [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Raleigh, NC - Rexwoods Center IV [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Raleigh, NC - Rexwoods Center V [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 2,463,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcRexwoodsCenterVMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 7,740,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcRexwoodsCenterVMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 1,301,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcRexwoodsCenterVMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcRexwoodsCenterVMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 184,000 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcRexwoodsCenterVMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 6,255,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcRexwoodsCenterVMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 1,485,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcRexwoodsCenterVMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 6,255,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcRexwoodsCenterVMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 7,740,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcRexwoodsCenterVMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 2,463,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcRexwoodsCenterVMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 7,740,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcRexwoodsCenterVMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 2,463,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcRexwoodsCenterVMember |  |  |
Raleigh, NC - Rexwoods Center V [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Raleigh, NC - Rexwoods Center V [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Raleigh, NC - Riverbirch [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 1,136,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcRiverbirchMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 9,734,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcRiverbirchMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 469,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcRiverbirchMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 4,038,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcRiverbirchMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 23,000 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcRiverbirchMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 5,204,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcRiverbirchMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 492,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcRiverbirchMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 9,242,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcRiverbirchMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 9,734,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcRiverbirchMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 1,136,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcRiverbirchMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 9,734,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcRiverbirchMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 1,136,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcRiverbirchMember |  |  |
Raleigh, NC - Riverbirch [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Raleigh, NC - Riverbirch [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Raleigh, NC - Situs I [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 1,558,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcSitusIMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 4,445,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcSitusIMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 692,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcSitusIMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 4,646,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcSitusIMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 178,000 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcSitusIMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | (1,071,000)us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcSitusIMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 870,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcSitusIMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 3,575,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcSitusIMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 4,445,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcSitusIMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 1,558,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcSitusIMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 4,445,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcSitusIMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 1,558,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcSitusIMember |  |  |
Raleigh, NC - Situs I [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Raleigh, NC - Situs I [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Raleigh, NC - Situs II [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 2,088,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcSitusIiMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 6,055,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcSitusIiMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 718,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcSitusIiMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 6,254,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcSitusIiMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 181,000 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcSitusIiMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | (1,098,000)us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcSitusIiMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 899,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcSitusIiMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 5,156,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcSitusIiMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 6,055,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcSitusIiMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 2,088,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcSitusIiMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 6,055,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcSitusIiMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 2,088,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcSitusIiMember |  |  |
Raleigh, NC - Situs II [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Raleigh, NC - Situs II [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Raleigh, NC - Situs III [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 939,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcSitusIiiMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 3,370,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcSitusIiiMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 440,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcSitusIiiMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 4,078,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcSitusIiiMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 119,000 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcSitusIiiMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | (1,267,000)us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcSitusIiiMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 559,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcSitusIiiMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 2,811,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcSitusIiiMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 3,370,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcSitusIiiMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 939,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcSitusIiiMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 3,370,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcSitusIiiMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 939,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcSitusIiiMember |  |  |
Raleigh, NC - Situs III [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Raleigh, NC - Situs III [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Raleigh, NC - Six Forks Center I [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 2,066,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcSixForksCenterIMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 4,958,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcSixForksCenterIMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 666,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcSixForksCenterIMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 2,665,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcSixForksCenterIMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 0 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcSixForksCenterIMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 1,627,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcSixForksCenterIMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 666,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcSixForksCenterIMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 4,292,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcSixForksCenterIMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 4,958,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcSixForksCenterIMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 2,066,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcSixForksCenterIMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 4,958,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcSixForksCenterIMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 2,066,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcSixForksCenterIMember |  |  |
Raleigh, NC - Six Forks Center I [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Raleigh, NC - Six Forks Center I [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Raleigh, NC - Six Forks Center II [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 3,284,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcSixForksCenterIiMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 7,809,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcSixForksCenterIiMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 1,086,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcSixForksCenterIiMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 4,533,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcSixForksCenterIiMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 0 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcSixForksCenterIiMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 2,190,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcSixForksCenterIiMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 1,086,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcSixForksCenterIiMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 6,723,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcSixForksCenterIiMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 7,809,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcSixForksCenterIiMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 3,284,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcSixForksCenterIiMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 7,809,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcSixForksCenterIiMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 3,284,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcSixForksCenterIiMember |  |  |
Raleigh, NC - Six Forks Center II [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Raleigh, NC - Six Forks Center II [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Raleigh, NC - Six Forks Center III [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 3,502,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcSixForksCenterIiiMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 7,833,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcSixForksCenterIiiMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 862,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcSixForksCenterIiiMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 4,411,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcSixForksCenterIiiMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 0 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcSixForksCenterIiiMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 2,560,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcSixForksCenterIiiMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 862,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcSixForksCenterIiiMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 6,971,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcSixForksCenterIiiMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 7,833,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcSixForksCenterIiiMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 3,502,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcSixForksCenterIiiMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 7,833,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcSixForksCenterIiiMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 3,502,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcSixForksCenterIiiMember |  |  |
Raleigh, NC - Six Forks Center III [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Raleigh, NC - Six Forks Center III [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Raleigh, NC - Smoketree Tower [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 7,722,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcSmoketreeTowerMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 19,654,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcSmoketreeTowerMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 2,353,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcSmoketreeTowerMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 11,743,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcSmoketreeTowerMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 0 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcSmoketreeTowerMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 5,558,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcSmoketreeTowerMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 2,353,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcSmoketreeTowerMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 17,301,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcSmoketreeTowerMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 19,654,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcSmoketreeTowerMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 7,722,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcSmoketreeTowerMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 19,654,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcSmoketreeTowerMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 7,722,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcSmoketreeTowerMember |  |  |
Raleigh, NC - Smoketree Tower [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Raleigh, NC - Smoketree Tower [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Raleigh, NC - 4601 Creekstone Drive [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 2,315,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcSycamoreMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 5,894,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcSycamoreMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 255,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcSycamoreMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcSycamoreMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 217,000 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcSycamoreMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 5,422,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcSycamoreMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 472,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcSycamoreMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 5,422,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcSycamoreMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 5,894,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcSycamoreMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 2,315,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcSycamoreMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 5,894,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcSycamoreMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 2,315,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcSycamoreMember |  |  |
Raleigh, NC - 4601 Creekstone Drive [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Raleigh, NC - 4601 Creekstone Drive [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Raleigh, NC - Weston Land [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 0 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcWestonLandMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 25,310,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcWestonLandMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 22,771,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcWestonLandMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcWestonLandMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | (10,271,000)hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcWestonLandMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 12,810,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcWestonLandMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 12,500,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcWestonLandMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 12,810,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcWestonLandMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 25,310,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcWestonLandMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 0 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcWestonLandMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 25,310,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcWestonLandMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 0 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcWestonLandMember |  |  |
Raleigh, NC - 4625 Creekstone Drive [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 2,458,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcWillowOakMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 6,200,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcWillowOakMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 458,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcWillowOakMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcWillowOakMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 268,000 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcWillowOakMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 5,474,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcWillowOakMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 726,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcWillowOakMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 5,474,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcWillowOakMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 6,200,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcWillowOakMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 2,458,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcWillowOakMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 6,200,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcWillowOakMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 2,458,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcWillowOakMember |  |  |
Raleigh, NC - 4625 Creekstone Drive [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Raleigh, NC - 4625 Creekstone Drive [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Raleigh, NC - 11000 Weston Parkway [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 2,118,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNc11000WestonParkwayMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 21,727,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNc11000WestonParkwayMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 2,651,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNc11000WestonParkwayMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 18,850,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNc11000WestonParkwayMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 0 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNc11000WestonParkwayMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 226,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNc11000WestonParkwayMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 2,651,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNc11000WestonParkwayMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 19,076,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNc11000WestonParkwayMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 21,727,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNc11000WestonParkwayMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 2,118,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNc11000WestonParkwayMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 21,727,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNc11000WestonParkwayMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 2,118,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNc11000WestonParkwayMember |  |  |
Raleigh, NC - 11000 Weston Parkway [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Raleigh, NC - 11000 Weston Parkway [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Raleigh, NC - GlenLake Five [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 0 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNCGlenLakeFiveMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 29,613,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNCGlenLakeFiveMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNCGlenLakeFiveMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNCGlenLakeFiveMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 2,263,000 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNCGlenLakeFiveMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 27,350,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNCGlenLakeFiveMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 2,263,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNCGlenLakeFiveMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 27,350,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNCGlenLakeFiveMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 29,613,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNCGlenLakeFiveMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 0 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNCGlenLakeFiveMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 29,613,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNCGlenLakeFiveMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 0 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNCGlenLakeFiveMember |  |  |
Raleigh, NC - GlenLake Five [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Raleigh, NC - GlenLake Five [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Raleigh, NC - 11800 Weston Parkway [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 0 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNC11800WestonParkwayMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 170,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNC11800WestonParkwayMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNC11800WestonParkwayMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNC11800WestonParkwayMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 0 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNC11800WestonParkwayMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 170,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNC11800WestonParkwayMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 0 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNC11800WestonParkwayMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 170,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNC11800WestonParkwayMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 170,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNC11800WestonParkwayMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 0 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNC11800WestonParkwayMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 170,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNC11800WestonParkwayMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 0 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNC11800WestonParkwayMember |  |  |
Raleigh, NC - 11800 Weston Parkway [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Raleigh, NC - 11800 Weston Parkway [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Raleigh, NC - CentreGreen Cafe [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 7,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNCCentreGreenCafeMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 3,415,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNCCentreGreenCafeMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNCCentreGreenCafeMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNCCentreGreenCafeMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 0 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNCCentreGreenCafeMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 3,415,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNCCentreGreenCafeMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 0 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNCCentreGreenCafeMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 3,415,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNCCentreGreenCafeMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 3,415,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNCCentreGreenCafeMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 7,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNCCentreGreenCafeMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 3,415,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNCCentreGreenCafeMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 7,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNCCentreGreenCafeMember |  |  |
Raleigh, NC - CentreGreen Cafe [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Raleigh, NC - CentreGreen Cafe [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Raleigh, NC - CentreGreen Fitness Center [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 5,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNCCentreGreenFitnessCenterMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 2,221,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNCCentreGreenFitnessCenterMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNCCentreGreenFitnessCenterMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNCCentreGreenFitnessCenterMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 0 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNCCentreGreenFitnessCenterMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 2,221,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNCCentreGreenFitnessCenterMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 0 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNCCentreGreenFitnessCenterMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 2,221,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNCCentreGreenFitnessCenterMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 2,221,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNCCentreGreenFitnessCenterMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 5,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNCCentreGreenFitnessCenterMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 2,221,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNCCentreGreenFitnessCenterMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 5,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNCCentreGreenFitnessCenterMember |  |  |
Raleigh, NC - CentreGreen Fitness Center [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Raleigh, NC - CentreGreen Fitness Center [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Raleigh, NC - One Bank of America Plaza [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 835,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNCOneBankofAmericaPlazaMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 79,663,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNCOneBankofAmericaPlazaMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNCOneBankofAmericaPlazaMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNCOneBankofAmericaPlazaMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 11,288,000 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNCOneBankofAmericaPlazaMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 68,375,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNCOneBankofAmericaPlazaMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 11,288,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNCOneBankofAmericaPlazaMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 68,375,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNCOneBankofAmericaPlazaMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 79,663,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNCOneBankofAmericaPlazaMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 835,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNCOneBankofAmericaPlazaMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 79,663,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNCOneBankofAmericaPlazaMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 835,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNCOneBankofAmericaPlazaMember |  |  |
Raleigh, NC - One Bank of America Plaza [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Raleigh, NC - One Bank of America Plaza [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Raleigh, NC - Other Property [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 7,788,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcOtherPropertyMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 5,360,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcOtherPropertyMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 24,976,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcOtherPropertyMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 9,493,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcOtherPropertyMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | (23,151,000)hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcOtherPropertyMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | (5,958,000)us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcOtherPropertyMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 1,825,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcOtherPropertyMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 3,535,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcOtherPropertyMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 5,360,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcOtherPropertyMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 7,788,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcOtherPropertyMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 5,360,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcOtherPropertyMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 7,788,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RaleighNcOtherPropertyMember |  |  |
Richmond, VA - 4900 Cox Road [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 3,971,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVa4900CoxRoadMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 9,341,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVa4900CoxRoadMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 1,324,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVa4900CoxRoadMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 5,311,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVa4900CoxRoadMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 15,000 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVa4900CoxRoadMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 2,691,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVa4900CoxRoadMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 1,339,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVa4900CoxRoadMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 8,002,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVa4900CoxRoadMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 9,341,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVa4900CoxRoadMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 3,971,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVa4900CoxRoadMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 9,341,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVa4900CoxRoadMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 3,971,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVa4900CoxRoadMember |  |  |
Richmond, VA - 4900 Cox Road [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Richmond, VA - 4900 Cox Road [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Richmond, VA - Colonnade Building [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 2,263,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaColonnadeBuildingMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 8,633,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaColonnadeBuildingMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 1,364,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaColonnadeBuildingMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 6,105,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaColonnadeBuildingMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 0 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaColonnadeBuildingMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 1,164,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaColonnadeBuildingMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 1,364,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaColonnadeBuildingMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 7,269,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaColonnadeBuildingMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 8,633,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaColonnadeBuildingMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 2,263,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaColonnadeBuildingMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 8,633,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaColonnadeBuildingMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 2,263,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaColonnadeBuildingMember |  |  |
Richmond, VA - Colonnade Building [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Richmond, VA - Colonnade Building [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Richmond, VA - Dominion Place - Pitts Parcel - Land [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 0 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaDominionPlacePittsParcelMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 436,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaDominionPlacePittsParcelMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 1,101,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaDominionPlacePittsParcelMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaDominionPlacePittsParcelMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | (665,000)hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaDominionPlacePittsParcelMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaDominionPlacePittsParcelMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 436,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaDominionPlacePittsParcelMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaDominionPlacePittsParcelMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 436,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaDominionPlacePittsParcelMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 0 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaDominionPlacePittsParcelMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 436,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaDominionPlacePittsParcelMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 0 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaDominionPlacePittsParcelMember |  |  |
Richmond, VA - Markel 4521 [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 4,276,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaEssexPlazaMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 13,356,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaEssexPlazaMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 1,581,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaEssexPlazaMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 13,299,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaEssexPlazaMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 168,000 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaEssexPlazaMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | (1,692,000)us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaEssexPlazaMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 1,749,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaEssexPlazaMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 11,607,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaEssexPlazaMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 13,356,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaEssexPlazaMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 4,276,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaEssexPlazaMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 13,356,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaEssexPlazaMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 4,276,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaEssexPlazaMember |  |  |
Richmond, VA - Markel 4521 [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Richmond, VA - Markel 4521 [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Richmond, VA - Hamilton Beach/Proctor Silex [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 3,618,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaHamiltonBeachMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 7,469,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaHamiltonBeachMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 1,086,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaHamiltonBeachMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 4,345,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaHamiltonBeachMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 10,000 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaHamiltonBeachMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 2,028,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaHamiltonBeachMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 1,096,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaHamiltonBeachMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 6,373,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaHamiltonBeachMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 7,469,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaHamiltonBeachMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 3,618,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaHamiltonBeachMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 7,469,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaHamiltonBeachMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 3,618,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaHamiltonBeachMember |  |  |
Richmond, VA - Hamilton Beach/Proctor Silex [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Richmond, VA - Hamilton Beach/Proctor Silex [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Richmond, VA - Highwoods Commons [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 1,401,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaHighwoodsCommonsMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 4,656,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaHighwoodsCommonsMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 521,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaHighwoodsCommonsMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaHighwoodsCommonsMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 458,000 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaHighwoodsCommonsMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 3,677,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaHighwoodsCommonsMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 979,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaHighwoodsCommonsMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 3,677,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaHighwoodsCommonsMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 4,656,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaHighwoodsCommonsMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 1,401,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaHighwoodsCommonsMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 4,656,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaHighwoodsCommonsMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 1,401,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaHighwoodsCommonsMember |  |  |
Richmond, VA - Highwoods Commons [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Richmond, VA - Highwoods Commons [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Richmond, VA - Highwoods One [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 5,177,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaHighwoodsOneMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 12,973,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaHighwoodsOneMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 1,688,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaHighwoodsOneMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaHighwoodsOneMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 22,000 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaHighwoodsOneMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 11,263,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaHighwoodsOneMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 1,710,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaHighwoodsOneMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 11,263,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaHighwoodsOneMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 12,973,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaHighwoodsOneMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 5,177,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaHighwoodsOneMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 12,973,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaHighwoodsOneMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 5,177,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaHighwoodsOneMember |  |  |
Richmond, VA - Highwoods One [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Richmond, VA - Highwoods One [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Richmond, VA - Highwoods Two [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 2,737,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaHighwoodsTwoMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 7,145,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaHighwoodsTwoMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 786,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaHighwoodsTwoMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaHighwoodsTwoMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 226,000 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaHighwoodsTwoMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 6,133,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaHighwoodsTwoMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 1,012,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaHighwoodsTwoMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 6,133,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaHighwoodsTwoMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 7,145,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaHighwoodsTwoMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 2,737,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaHighwoodsTwoMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 7,145,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaHighwoodsTwoMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 2,737,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaHighwoodsTwoMember |  |  |
Richmond, VA - Highwoods Two [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Richmond, VA - Highwoods Two [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Richmond, VA - Highwoods Five [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 2,370,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaHighwoodsFiveMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 6,263,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaHighwoodsFiveMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 783,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaHighwoodsFiveMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaHighwoodsFiveMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 11,000 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaHighwoodsFiveMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 5,469,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaHighwoodsFiveMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 794,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaHighwoodsFiveMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 5,469,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaHighwoodsFiveMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 6,263,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaHighwoodsFiveMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 2,370,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaHighwoodsFiveMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 6,263,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaHighwoodsFiveMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 2,370,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaHighwoodsFiveMember |  |  |
Richmond, VA - Highwoods Five [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Richmond, VA - Highwoods Five [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Richmond, VA - Highwoods Plaza [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 2,292,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaHighwoodsPlazaMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 7,008,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaHighwoodsPlazaMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 909,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaHighwoodsPlazaMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaHighwoodsPlazaMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 187,000 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaHighwoodsPlazaMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 5,912,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaHighwoodsPlazaMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 1,096,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaHighwoodsPlazaMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 5,912,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaHighwoodsPlazaMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 7,008,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaHighwoodsPlazaMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 2,292,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaHighwoodsPlazaMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 7,008,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaHighwoodsPlazaMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 2,292,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaHighwoodsPlazaMember |  |  |
Richmond, VA - Highwoods Plaza [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Richmond, VA - Highwoods Plaza [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Richmond, VA - Markel 4551 [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 0 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVAMarkel4551InnsbrookCenterMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | (144,000)us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVAMarkel4551InnsbrookCenterMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 1,300,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVAMarkel4551InnsbrookCenterMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 6,958,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVAMarkel4551InnsbrookCenterMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | (1,444,000)hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVAMarkel4551InnsbrookCenterMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | (6,958,000)us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVAMarkel4551InnsbrookCenterMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | (144,000)us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVAMarkel4551InnsbrookCenterMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVAMarkel4551InnsbrookCenterMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | (144,000)us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVAMarkel4551InnsbrookCenterMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 0 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVAMarkel4551InnsbrookCenterMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | (144,000)us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVAMarkel4551InnsbrookCenterMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 0 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVAMarkel4551InnsbrookCenterMember |  |  |
Richmond, VA - Markel 4551 [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Richmond, VA - Markel 4551 [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Richmond, VA - Innslake Center [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 1,970,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaInnslakeCenterMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 7,500,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaInnslakeCenterMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 845,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaInnslakeCenterMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaInnslakeCenterMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 195,000 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaInnslakeCenterMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 6,460,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaInnslakeCenterMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 1,040,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaInnslakeCenterMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 6,460,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaInnslakeCenterMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 7,500,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaInnslakeCenterMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 1,970,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaInnslakeCenterMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 7,500,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaInnslakeCenterMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 1,970,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaInnslakeCenterMember |  |  |
Richmond, VA - Innslake Center [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Richmond, VA - Innslake Center [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Richmond, VA - Highwoods Centre [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 2,733,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaLibertyMutualMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 7,157,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaLibertyMutualMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 1,205,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaLibertyMutualMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 4,825,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaLibertyMutualMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 0 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaLibertyMutualMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 1,127,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaLibertyMutualMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 1,205,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaLibertyMutualMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 5,952,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaLibertyMutualMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 7,157,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaLibertyMutualMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 2,733,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaLibertyMutualMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 7,157,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaLibertyMutualMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 2,733,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaLibertyMutualMember |  |  |
Richmond, VA - Highwoods Centre [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Richmond, VA - Highwoods Centre [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Richmond, VA - Markel 4501 [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 2,544,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaMarkelAmericanMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 10,409,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaMarkelAmericanMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 1,300,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaMarkelAmericanMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 13,259,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaMarkelAmericanMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 213,000 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaMarkelAmericanMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | (4,363,000)us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaMarkelAmericanMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 1,513,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaMarkelAmericanMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 8,896,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaMarkelAmericanMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 10,409,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaMarkelAmericanMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 2,544,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaMarkelAmericanMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 10,409,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaMarkelAmericanMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 2,544,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaMarkelAmericanMember |  |  |
Richmond, VA - Markel 4501 [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Richmond, VA - Markel 4501 [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Richmond, VA - Markel 4600 [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 3,205,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaMarkelPlazaMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 13,572,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaMarkelPlazaMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 1,700,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaMarkelPlazaMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 17,081,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaMarkelPlazaMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 169,000 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaMarkelPlazaMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | (5,378,000)us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaMarkelPlazaMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 1,869,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaMarkelPlazaMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 11,703,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaMarkelPlazaMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 13,572,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaMarkelPlazaMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 3,205,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaMarkelPlazaMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 13,572,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaMarkelPlazaMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 3,205,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaMarkelPlazaMember |  |  |
Richmond, VA - Markel 4600 [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Richmond, VA - Markel 4600 [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Richmond, VA - North Park [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 4,760,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaNorthParkMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 12,926,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaNorthParkMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 2,163,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaNorthParkMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 8,659,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaNorthParkMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 6,000 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaNorthParkMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 2,098,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaNorthParkMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 2,169,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaNorthParkMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 10,757,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaNorthParkMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 12,926,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaNorthParkMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 4,760,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaNorthParkMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 12,926,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaNorthParkMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 4,760,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaNorthParkMember |  |  |
Richmond, VA - North Park [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Richmond, VA - North Park [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Richmond, VA - North Shore Commons I [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 3,848,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaNorthShoreCommonsMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 12,231,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaNorthShoreCommonsMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 951,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaNorthShoreCommonsMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaNorthShoreCommonsMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 17,000 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaNorthShoreCommonsMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 11,263,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaNorthShoreCommonsMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 968,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaNorthShoreCommonsMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 11,263,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaNorthShoreCommonsMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 12,231,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaNorthShoreCommonsMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 3,848,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaNorthShoreCommonsMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 12,231,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaNorthShoreCommonsMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 3,848,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaNorthShoreCommonsMember |  |  |
Richmond, VA - North Shore Commons I [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Richmond, VA - North Shore Commons I [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Richmond, VA - North Shore Commons II [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 1,987,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaNorthShoreCommonsBLandMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 12,088,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaNorthShoreCommonsBLandMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 2,067,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaNorthShoreCommonsBLandMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaNorthShoreCommonsBLandMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | (89,000)hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaNorthShoreCommonsBLandMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 10,110,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaNorthShoreCommonsBLandMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 1,978,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaNorthShoreCommonsBLandMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 10,110,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaNorthShoreCommonsBLandMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 12,088,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaNorthShoreCommonsBLandMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 1,987,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaNorthShoreCommonsBLandMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 12,088,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaNorthShoreCommonsBLandMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 1,987,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaNorthShoreCommonsBLandMember |  |  |
Richmond, VA - North Shore Commons II [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Richmond, VA - North Shore Commons II [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Richmond, VA - North Shore Commons C - Land [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 0 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaNorthShoreCommonsCLandMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 1,512,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaNorthShoreCommonsCLandMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 1,497,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaNorthShoreCommonsCLandMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaNorthShoreCommonsCLandMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 15,000 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaNorthShoreCommonsCLandMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaNorthShoreCommonsCLandMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 1,512,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaNorthShoreCommonsCLandMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaNorthShoreCommonsCLandMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 1,512,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaNorthShoreCommonsCLandMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 0 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaNorthShoreCommonsCLandMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 1,512,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaNorthShoreCommonsCLandMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 0 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaNorthShoreCommonsCLandMember |  |  |
Richmond, VA - North Shore Commons D - Land [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 0 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaNorthShoreCommonsDLandMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 1,261,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaNorthShoreCommonsDLandMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 1,261,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaNorthShoreCommonsDLandMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaNorthShoreCommonsDLandMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 0 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaNorthShoreCommonsDLandMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaNorthShoreCommonsDLandMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 1,261,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaNorthShoreCommonsDLandMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaNorthShoreCommonsDLandMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 1,261,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaNorthShoreCommonsDLandMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 0 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaNorthShoreCommonsDLandMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 1,261,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaNorthShoreCommonsDLandMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 0 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaNorthShoreCommonsDLandMember |  |  |
Richmond, VA - Nuckols Corner Land [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 0 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaNucklosCornerLandMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 1,462,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaNucklosCornerLandMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 1,259,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaNucklosCornerLandMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaNucklosCornerLandMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 203,000 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaNucklosCornerLandMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaNucklosCornerLandMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 1,462,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaNucklosCornerLandMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaNucklosCornerLandMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 1,462,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaNucklosCornerLandMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 0 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaNucklosCornerLandMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 1,462,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaNucklosCornerLandMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 0 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaNucklosCornerLandMember |  |  |
Richmond, VA - One Shockoe Plaza [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 7,493,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaOneShockoePlazaMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 15,935,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaOneShockoePlazaMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaOneShockoePlazaMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaOneShockoePlazaMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 356,000 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaOneShockoePlazaMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 15,579,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaOneShockoePlazaMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 356,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaOneShockoePlazaMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 15,579,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaOneShockoePlazaMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 15,935,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaOneShockoePlazaMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 7,493,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaOneShockoePlazaMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 15,935,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaOneShockoePlazaMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 7,493,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaOneShockoePlazaMember |  |  |
Richmond, VA - One Shockoe Plaza [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Richmond, VA - One Shockoe Plaza [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Richmond, VA - Pavilion Land [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 0 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaPavilionLandMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 201,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaPavilionLandMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 181,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaPavilionLandMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 46,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaPavilionLandMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 20,000 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaPavilionLandMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | (46,000)us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaPavilionLandMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 201,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaPavilionLandMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaPavilionLandMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 201,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaPavilionLandMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 0 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaPavilionLandMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 201,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaPavilionLandMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 0 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaPavilionLandMember |  |  |
Richmond, VA - Lake Brook Commons [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 2,363,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaRhodiaBuildingMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 12,667,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaRhodiaBuildingMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 1,600,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaRhodiaBuildingMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 8,864,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaRhodiaBuildingMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 21,000 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaRhodiaBuildingMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 2,182,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaRhodiaBuildingMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 1,621,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaRhodiaBuildingMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 11,046,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaRhodiaBuildingMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 12,667,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaRhodiaBuildingMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 2,363,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaRhodiaBuildingMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 12,667,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaRhodiaBuildingMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 2,363,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaRhodiaBuildingMember |  |  |
Richmond, VA - Lake Brook Commons [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Richmond, VA - Lake Brook Commons [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Richmond, VA - Sadler & Cox Land [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 0 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaSadlerCoxLandMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 1,878,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaSadlerCoxLandMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 1,535,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaSadlerCoxLandMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaSadlerCoxLandMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 343,000 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaSadlerCoxLandMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaSadlerCoxLandMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 1,878,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaSadlerCoxLandMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaSadlerCoxLandMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 1,878,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaSadlerCoxLandMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 0 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaSadlerCoxLandMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 1,878,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaSadlerCoxLandMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 0 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaSadlerCoxLandMember |  |  |
Richmond, VA - 4840 Cox Road [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 5,161,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaSaxonCapitalBuildingMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 15,835,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaSaxonCapitalBuildingMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 1,918,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaSaxonCapitalBuildingMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaSaxonCapitalBuildingMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 358,000 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaSaxonCapitalBuildingMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 13,559,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaSaxonCapitalBuildingMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 2,276,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaSaxonCapitalBuildingMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 13,559,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaSaxonCapitalBuildingMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 15,835,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaSaxonCapitalBuildingMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 5,161,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaSaxonCapitalBuildingMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 15,835,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaSaxonCapitalBuildingMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 5,161,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaSaxonCapitalBuildingMember |  |  |
Richmond, VA - 4840 Cox Road [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Richmond, VA - 4840 Cox Road [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Richmond, VA - Stony Point F Land [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 0 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaStonyPointFLandMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 1,841,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaStonyPointFLandMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 1,841,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaStonyPointFLandMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaStonyPointFLandMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 0 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaStonyPointFLandMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaStonyPointFLandMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 1,841,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaStonyPointFLandMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaStonyPointFLandMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 1,841,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaStonyPointFLandMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 0 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaStonyPointFLandMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 1,841,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaStonyPointFLandMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 0 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaStonyPointFLandMember |  |  |
Richmond, VA - Stony Point I [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 6,249,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaStonyPointIMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 15,961,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaStonyPointIMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 1,384,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaStonyPointIMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 11,630,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaStonyPointIMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 59,000 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaStonyPointIMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 2,888,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaStonyPointIMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 1,443,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaStonyPointIMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 14,518,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaStonyPointIMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 15,961,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaStonyPointIMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 6,249,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaStonyPointIMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 15,961,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaStonyPointIMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 6,249,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaStonyPointIMember |  |  |
Richmond, VA - Stony Point I [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Richmond, VA - Stony Point I [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Richmond, VA - Stony Point II [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 4,616,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaStonyPointIiMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 13,090,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaStonyPointIiMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 1,240,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaStonyPointIiMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaStonyPointIiMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 0 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaStonyPointIiMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 11,850,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaStonyPointIiMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 1,240,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaStonyPointIiMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 11,850,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaStonyPointIiMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 13,090,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaStonyPointIiMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 4,616,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaStonyPointIiMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 13,090,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaStonyPointIiMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 4,616,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaStonyPointIiMember |  |  |
Richmond, VA - Stony Point II [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Richmond, VA - Stony Point II [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Richmond, VA - Stony Point III [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 3,080,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaStonyPointIiiMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 10,765,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaStonyPointIiiMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 995,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaStonyPointIiiMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaStonyPointIiiMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 0 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaStonyPointIiiMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 9,770,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaStonyPointIiiMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 995,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaStonyPointIiiMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 9,770,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaStonyPointIiiMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 10,765,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaStonyPointIiiMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 3,080,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaStonyPointIiiMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 10,765,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaStonyPointIiiMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 3,080,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaStonyPointIiiMember |  |  |
Richmond, VA - Stony Point III [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Richmond, VA - Stony Point III [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Richmond, VA - Stony Point IV [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 3,738,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaStonyPointIvMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 13,067,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaStonyPointIvMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 955,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaStonyPointIvMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaStonyPointIvMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 0 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaStonyPointIvMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 12,112,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaStonyPointIvMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 955,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaStonyPointIvMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 12,112,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaStonyPointIvMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 13,067,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaStonyPointIvMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 3,738,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaStonyPointIvMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 13,067,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaStonyPointIvMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 3,738,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaStonyPointIvMember |  |  |
Richmond, VA - Stony Point IV [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Richmond, VA - Stony Point IV [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Richmond, VA - Virginia Mutual [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 2,474,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaVirginiaMutualMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 8,618,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaVirginiaMutualMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 1,301,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaVirginiaMutualMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 6,036,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaVirginiaMutualMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 15,000 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaVirginiaMutualMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 1,266,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaVirginiaMutualMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 1,316,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaVirginiaMutualMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 7,302,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaVirginiaMutualMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 8,618,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaVirginiaMutualMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 2,474,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaVirginiaMutualMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 8,618,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaVirginiaMutualMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 2,474,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaVirginiaMutualMember |  |  |
Richmond, VA - Virginia Mutual [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Richmond, VA - Virginia Mutual [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Richmond, VA - Waterfront Plaza [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 1,929,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaWaterfrontPlazaMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 4,120,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaWaterfrontPlazaMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 585,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaWaterfrontPlazaMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 2,347,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaWaterfrontPlazaMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 8,000 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaWaterfrontPlazaMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 1,180,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaWaterfrontPlazaMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 593,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaWaterfrontPlazaMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 3,527,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaWaterfrontPlazaMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 4,120,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaWaterfrontPlazaMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 1,929,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaWaterfrontPlazaMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 4,120,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaWaterfrontPlazaMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 1,929,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVaWaterfrontPlazaMember |  |  |
Richmond, VA - Waterfront Plaza [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Richmond, VA - Waterfront Plaza [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Richmond, VA - Innsbrook Center [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 2,306,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVAInnsbrookCenterMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 9,163,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVAInnsbrookCenterMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVAInnsbrookCenterMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVAInnsbrookCenterMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 914,000 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVAInnsbrookCenterMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 8,249,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVAInnsbrookCenterMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 914,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVAInnsbrookCenterMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 8,249,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVAInnsbrookCenterMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 9,163,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVAInnsbrookCenterMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 2,306,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVAInnsbrookCenterMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 9,163,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVAInnsbrookCenterMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 2,306,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_RichmondVAInnsbrookCenterMember |  |  |
Richmond, VA - Innsbrook Center [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Richmond, VA - Innsbrook Center [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Tampa, FL - 4200 Cypress [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 2,495,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFl4200CypressMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 21,158,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFl4200CypressMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 2,673,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFl4200CypressMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 16,470,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFl4200CypressMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 0 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFl4200CypressMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 2,015,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFl4200CypressMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 2,673,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFl4200CypressMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 18,485,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFl4200CypressMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 21,158,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFl4200CypressMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 2,495,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFl4200CypressMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 21,158,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFl4200CypressMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 2,495,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFl4200CypressMember |  |  |
Tampa, FL - 4200 Cypress [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Tampa, FL - 4200 Cypress [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Tampa, FL - Bayshore Place [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 6,099,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlBayshoreMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 15,789,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlBayshoreMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 2,276,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlBayshoreMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 11,817,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlBayshoreMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 0 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlBayshoreMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 1,696,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlBayshoreMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 2,276,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlBayshoreMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 13,513,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlBayshoreMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 15,789,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlBayshoreMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 6,099,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlBayshoreMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 15,789,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlBayshoreMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 6,099,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlBayshoreMember |  |  |
Tampa, FL - Bayshore Place [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Tampa, FL - Bayshore Place [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Tampa, FL - General Services Administration [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 8,133,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlGeneralServicesAdministrationMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 31,759,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlGeneralServicesAdministrationMember |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Real Estate and Accumulated Depreciation, Encumbrances | 107,556,000 us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlGeneralServicesAdministrationMember | [2] |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 4,054,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlGeneralServicesAdministrationMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlGeneralServicesAdministrationMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 406,000 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlGeneralServicesAdministrationMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 27,299,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlGeneralServicesAdministrationMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 4,460,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlGeneralServicesAdministrationMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 27,299,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlGeneralServicesAdministrationMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 31,759,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlGeneralServicesAdministrationMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 8,133,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlGeneralServicesAdministrationMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 31,759,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlGeneralServicesAdministrationMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 8,133,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlGeneralServicesAdministrationMember |  |  |
Tampa, FL - General Services Administration [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Tampa, FL - General Services Administration [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Tampa, FL - Harborview Plaza [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 8,170,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlHarborviewPlazaMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 31,237,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlHarborviewPlazaMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 3,537,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlHarborviewPlazaMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 29,944,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlHarborviewPlazaMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 969,000 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlHarborviewPlazaMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | (3,213,000)us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlHarborviewPlazaMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 4,506,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlHarborviewPlazaMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 26,731,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlHarborviewPlazaMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 31,237,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlHarborviewPlazaMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 8,170,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlHarborviewPlazaMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 31,237,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlHarborviewPlazaMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 8,170,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlHarborviewPlazaMember |  |  |
Tampa, FL - Harborview Plaza [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Tampa, FL - Harborview Plaza [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Tampa, FL - Highwoods Preserve Building I [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 8,595,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlHighwoodsPreserveIMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 23,571,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlHighwoodsPreserveIMember |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Real Estate and Accumulated Depreciation, Encumbrances | 107,556,000 us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlHighwoodsPreserveIMember | [2] |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 991,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlHighwoodsPreserveIMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlHighwoodsPreserveIMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 0 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlHighwoodsPreserveIMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 22,580,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlHighwoodsPreserveIMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 991,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlHighwoodsPreserveIMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 22,580,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlHighwoodsPreserveIMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 23,571,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlHighwoodsPreserveIMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 8,595,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlHighwoodsPreserveIMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 23,571,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlHighwoodsPreserveIMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 8,595,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlHighwoodsPreserveIMember |  |  |
Tampa, FL - Highwoods Preserve Building I [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Tampa, FL - Highwoods Preserve Building I [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Tampa, FL - Highwoods Preserve Land [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 0 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlHighwoodsPreserveLandMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 1,970,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlHighwoodsPreserveLandMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 1,485,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlHighwoodsPreserveLandMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlHighwoodsPreserveLandMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 485,000 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlHighwoodsPreserveLandMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlHighwoodsPreserveLandMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 1,970,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlHighwoodsPreserveLandMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlHighwoodsPreserveLandMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 1,970,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlHighwoodsPreserveLandMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 0 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlHighwoodsPreserveLandMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 1,970,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlHighwoodsPreserveLandMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 0 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlHighwoodsPreserveLandMember |  |  |
Tampa, FL - Highwoods Preserve Building V [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 8,881,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlHighwoodsPreserveVMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 25,498,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlHighwoodsPreserveVMember |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Real Estate and Accumulated Depreciation, Encumbrances | 107,556,000 us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlHighwoodsPreserveVMember | [2] |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 881,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlHighwoodsPreserveVMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlHighwoodsPreserveVMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 0 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlHighwoodsPreserveVMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 24,617,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlHighwoodsPreserveVMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 881,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlHighwoodsPreserveVMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 24,617,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlHighwoodsPreserveVMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 25,498,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlHighwoodsPreserveVMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 8,881,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlHighwoodsPreserveVMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 25,498,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlHighwoodsPreserveVMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 8,881,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlHighwoodsPreserveVMember |  |  |
Tampa, FL - Highwoods Preserve Building V [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Tampa, FL - Highwoods Preserve Building V [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Tampa, FL - Highwoods Bay Center I [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 7,369,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlHiwBayCenterIMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 40,126,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlHiwBayCenterIMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 3,565,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlHiwBayCenterIMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlHiwBayCenterIMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | (64,000)hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlHiwBayCenterIMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 36,625,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlHiwBayCenterIMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 3,501,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlHiwBayCenterIMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 36,625,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlHiwBayCenterIMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 40,126,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlHiwBayCenterIMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 7,369,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlHiwBayCenterIMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 40,126,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlHiwBayCenterIMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 7,369,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlHiwBayCenterIMember |  |  |
Tampa, FL - Highwoods Bay Center I [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Tampa, FL - Highwoods Bay Center I [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Tampa, FL - HIW Bay Center II Land [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 0 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlHiwBayCenterIiMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 3,482,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlHiwBayCenterIiMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 3,482,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlHiwBayCenterIiMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlHiwBayCenterIiMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 0 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlHiwBayCenterIiMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlHiwBayCenterIiMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 3,482,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlHiwBayCenterIiMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlHiwBayCenterIiMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 3,482,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlHiwBayCenterIiMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 0 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlHiwBayCenterIiMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 3,482,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlHiwBayCenterIiMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 0 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlHiwBayCenterIiMember |  |  |
Tampa, FL - HIW Preserve Building VII [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 2,414,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlHiwPreserveViiMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 13,288,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlHiwPreserveViiMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 790,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlHiwPreserveViiMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlHiwPreserveViiMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 0 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlHiwPreserveViiMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 12,498,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlHiwPreserveViiMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 790,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlHiwPreserveViiMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 12,498,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlHiwPreserveViiMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 13,288,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlHiwPreserveViiMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 2,414,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlHiwPreserveViiMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 13,288,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlHiwPreserveViiMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 2,414,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlHiwPreserveViiMember |  |  |
Tampa, FL - HIW Preserve Building VII [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Tampa, FL - HIW Preserve Building VII [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Tampa, FL - HIW Preserve VII Garage [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 1,343,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlHiwPreserveViiGarageMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 6,789,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlHiwPreserveViiGarageMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlHiwPreserveViiGarageMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlHiwPreserveViiGarageMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 0 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlHiwPreserveViiGarageMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 6,789,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlHiwPreserveViiGarageMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 0 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlHiwPreserveViiGarageMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 6,789,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlHiwPreserveViiGarageMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 6,789,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlHiwPreserveViiGarageMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 1,343,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlHiwPreserveViiGarageMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 6,789,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlHiwPreserveViiGarageMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 1,343,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlHiwPreserveViiGarageMember |  |  |
Tampa, FL - HIW Preserve VII Garage [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Tampa, FL - HIW Preserve VII Garage [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Tampa, FL - Horizon [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 4,220,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlHorizonMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 8,821,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlHorizonMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlHorizonMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 6,257,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlHorizonMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 0 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlHorizonMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 2,564,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlHorizonMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 0 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlHorizonMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 8,821,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlHorizonMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 8,821,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlHorizonMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 4,220,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlHorizonMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 8,821,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlHorizonMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 4,220,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlHorizonMember |  |  |
Tampa, FL - Horizon [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Tampa, FL - Horizon [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Tampa, FL - LakePointe One [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 15,925,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlLakepointeIMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 45,073,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlLakepointeIMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 2,106,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlLakepointeIMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 89,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlLakepointeIMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 0 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlLakepointeIMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 42,878,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlLakepointeIMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 2,106,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlLakepointeIMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 42,967,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlLakepointeIMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 45,073,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlLakepointeIMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 15,925,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlLakepointeIMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 45,073,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlLakepointeIMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 15,925,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlLakepointeIMember |  |  |
Tampa, FL - LakePointe One [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Tampa, FL - LakePointe One [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Tampa, FL - LakePointe Two [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 9,043,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlLakepointeIiMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 29,902,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlLakepointeIiMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 2,000,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlLakepointeIiMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 15,848,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlLakepointeIiMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 672,000 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlLakepointeIiMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 11,382,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlLakepointeIiMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 2,672,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlLakepointeIiMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 27,230,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlLakepointeIiMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 29,902,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlLakepointeIiMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 9,043,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlLakepointeIiMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 29,902,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlLakepointeIiMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 9,043,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlLakepointeIiMember |  |  |
Tampa, FL - LakePointe Two [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Tampa, FL - LakePointe Two [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Tampa, FL - Lakeside [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 3,722,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlLakesideMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 10,414,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlLakesideMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlLakesideMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 7,369,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlLakesideMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 0 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlLakesideMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 3,045,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlLakesideMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 0 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlLakesideMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 10,414,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlLakesideMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 10,414,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlLakesideMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 3,722,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlLakesideMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 10,414,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlLakesideMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 3,722,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlLakesideMember |  |  |
Tampa, FL - Lakeside [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Tampa, FL - Lakeside [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Tampa, FL - Lakeside/Parkside Garage [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 1,017,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlLakesideParksideGarageMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 5,587,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlLakesideParksideGarageMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlLakesideParksideGarageMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlLakesideParksideGarageMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 0 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlLakesideParksideGarageMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 5,587,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlLakesideParksideGarageMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 0 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlLakesideParksideGarageMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 5,587,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlLakesideParksideGarageMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 5,587,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlLakesideParksideGarageMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 1,017,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlLakesideParksideGarageMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 5,587,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlLakesideParksideGarageMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 1,017,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlLakesideParksideGarageMember |  |  |
Tampa, FL - Lakeside/Parkside Garage [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Tampa, FL - Lakeside/Parkside Garage [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Tampa, FL - One Harbour Place [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 13,041,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlOneHarbourPlaceMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 34,396,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlOneHarbourPlaceMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 2,016,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlOneHarbourPlaceMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 25,252,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlOneHarbourPlaceMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 0 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlOneHarbourPlaceMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 7,128,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlOneHarbourPlaceMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 2,016,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlOneHarbourPlaceMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 32,380,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlOneHarbourPlaceMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 34,396,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlOneHarbourPlaceMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 13,041,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlOneHarbourPlaceMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 34,396,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlOneHarbourPlaceMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 13,041,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlOneHarbourPlaceMember |  |  |
Tampa, FL - One Harbour Place [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Tampa, FL - One Harbour Place [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Tampa, FL - Parkside [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 5,163,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlParksideMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 11,477,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlParksideMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlParksideMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 9,407,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlParksideMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 0 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlParksideMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 2,070,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlParksideMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 0 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlParksideMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 11,477,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlParksideMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 11,477,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlParksideMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 5,163,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlParksideMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 11,477,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlParksideMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 5,163,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlParksideMember |  |  |
Tampa, FL - Parkside [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Tampa, FL - Parkside [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Tampa, FL - Pavilion [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 8,167,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlPavilionMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 19,877,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlPavilionMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlPavilionMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 16,394,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlPavilionMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 0 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlPavilionMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 3,483,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlPavilionMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 0 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlPavilionMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 19,877,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlPavilionMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 19,877,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlPavilionMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 8,167,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlPavilionMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 19,877,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlPavilionMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 8,167,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlPavilionMember |  |  |
Tampa, FL - Pavilion [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Tampa, FL - Pavilion [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Tampa, FL - Pavilion Parking Garage [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 2,142,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlPavilionParkingGarageMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 5,682,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlPavilionParkingGarageMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlPavilionParkingGarageMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlPavilionParkingGarageMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 0 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlPavilionParkingGarageMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 5,682,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlPavilionParkingGarageMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 0 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlPavilionParkingGarageMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 5,682,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlPavilionParkingGarageMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 5,682,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlPavilionParkingGarageMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 2,142,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlPavilionParkingGarageMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 5,682,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlPavilionParkingGarageMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 2,142,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlPavilionParkingGarageMember |  |  |
Tampa, FL - Pavilion Parking Garage [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Tampa, FL - Pavilion Parking Garage [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Tampa, FL - Spectrum [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 8,523,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlSpectrumMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 21,779,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlSpectrumMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 1,454,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlSpectrumMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 14,502,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlSpectrumMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 0 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlSpectrumMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 5,823,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlSpectrumMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 1,454,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlSpectrumMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 20,325,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlSpectrumMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 21,779,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlSpectrumMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 8,523,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlSpectrumMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 21,779,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlSpectrumMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 8,523,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlSpectrumMember |  |  |
Tampa, FL - Spectrum [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Tampa, FL - Spectrum [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Tampa, FL - Tower Place [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 10,997,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlTowerPlaceMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 27,703,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlTowerPlaceMember |  |  |
Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Real Estate and Accumulated Depreciation, Encumbrances | 107,556,000 us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlTowerPlaceMember | [2] |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 3,218,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlTowerPlaceMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 19,898,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlTowerPlaceMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 0 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlTowerPlaceMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 4,587,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlTowerPlaceMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 3,218,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlTowerPlaceMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 24,485,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlTowerPlaceMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 27,703,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlTowerPlaceMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 10,997,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlTowerPlaceMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 27,703,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlTowerPlaceMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 10,997,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlTowerPlaceMember |  |  |
Tampa, FL - Tower Place [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Tampa, FL - Tower Place [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Tampa, FL - Westshore Square [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 2,856,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlWestshoreSquareMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 7,941,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlWestshoreSquareMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 1,126,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlWestshoreSquareMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 5,186,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlWestshoreSquareMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 0 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlWestshoreSquareMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 1,629,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlWestshoreSquareMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 1,126,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlWestshoreSquareMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 6,815,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlWestshoreSquareMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 7,941,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlWestshoreSquareMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 2,856,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlWestshoreSquareMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 7,941,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlWestshoreSquareMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 2,856,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlWestshoreSquareMember |  |  |
Tampa, FL - Westshore Square [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Tampa, FL - Westshore Square [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Tampa, FL - Independence Park Land [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 0 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlIndependenceParkLandMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 4,943,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlIndependenceParkLandMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 4,943,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlIndependenceParkLandMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlIndependenceParkLandMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 0 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlIndependenceParkLandMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlIndependenceParkLandMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 4,943,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlIndependenceParkLandMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlIndependenceParkLandMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 4,943,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlIndependenceParkLandMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 0 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlIndependenceParkLandMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 4,943,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlIndependenceParkLandMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 0 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlIndependenceParkLandMember |  |  |
Tampa, FL - Independence Park I [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 1,665,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlIndependenceParkMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 11,933,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlIndependenceParkMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 2,531,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlIndependenceParkMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 4,526,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlIndependenceParkMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 0 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlIndependenceParkMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 4,876,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlIndependenceParkMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 2,531,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlIndependenceParkMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 9,402,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlIndependenceParkMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 11,933,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlIndependenceParkMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 1,665,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlIndependenceParkMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 11,933,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlIndependenceParkMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 1,665,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFlIndependenceParkMember |  |  |
Tampa, FL - Independence Park I [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Tampa, FL - Independence Park I [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Tampa, FL - Meridian I [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 2,283,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFLMeridianIMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 26,243,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFLMeridianIMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 1,849,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFLMeridianIMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 22,363,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFLMeridianIMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 0 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFLMeridianIMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 2,031,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFLMeridianIMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 1,849,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFLMeridianIMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 24,394,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFLMeridianIMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 26,243,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFLMeridianIMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 2,283,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFLMeridianIMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 26,243,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFLMeridianIMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 2,283,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFLMeridianIMember |  |  |
Tampa, FL - Meridian I [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Tampa, FL - Meridian I [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Tampa, FL - Meridian II [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 1,557,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFLMeridianIIMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 22,703,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFLMeridianIIMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 1,302,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFLMeridianIIMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 19,588,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFLMeridianIIMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | 0 hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFLMeridianIIMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 1,813,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFLMeridianIIMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 1,302,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFLMeridianIIMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 21,401,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFLMeridianIIMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 22,703,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFLMeridianIIMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 1,557,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFLMeridianIIMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 22,703,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFLMeridianIIMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | 1,557,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TampaFLMeridianIIMember |  |  |
Tampa, FL - Meridian II [Member] | Minimum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 5 years |  |  |
Tampa, FL - Meridian II [Member] | Maximum [Member] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Life Used For Depreciation | 40 years |  |  |
Total Real Estate and Accumulated Depreciation [Member] |  |  |  |
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract] |  |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 1,033,106,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TotalRealEstateAndAccumulatedDepreciationMember |  |  |
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract] |  |  |  |
Total real estate assets per Schedule III | 4,309,536,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TotalRealEstateAndAccumulatedDepreciationMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land | 498,166,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TotalRealEstateAndAccumulatedDepreciationMember |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 2,081,542,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TotalRealEstateAndAccumulatedDepreciationMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land | (29,009,000)hiw_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TotalRealEstateAndAccumulatedDepreciationMember |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements | 1,758,837,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TotalRealEstateAndAccumulatedDepreciationMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract] |  |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land | 469,157,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TotalRealEstateAndAccumulatedDepreciationMember |  |  |
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements | 3,840,379,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TotalRealEstateAndAccumulatedDepreciationMember |  |  |
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets | 4,309,536,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TotalRealEstateAndAccumulatedDepreciationMember |  |  |
SEC Schedule III, Real Estate Accumulated Depreciation | 1,033,106,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TotalRealEstateAndAccumulatedDepreciationMember |  |  |
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] |  |  |  |
Real estate assets, ending balance | 4,309,536,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TotalRealEstateAndAccumulatedDepreciationMember |  |  |
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] |  |  |  |
Accumulated depreciation, ending balance | $ 1,033,106,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = hiw_TotalRealEstateAndAccumulatedDepreciationMember |  |  |
[1] | These assets are pledged as collateral for a $39.3 million first mortgage loan.
[2] | These assets are pledged as collateral for a $107.6 million first mortgage loan.
[3] | These assets are pledged as collateral for a $115.2 million first mortgage loan.

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