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Financing Arrangements (Details) (USD $) | 12 Months Ended |
--- | --- | ---
Dec. 31, 2014 sqft | Dec. 31, 2013
Financing Obligations [Line Items] |  |
Financing obligations | $ 23,519,000 hiw_FinancingObligations | $ 26,664,000 hiw_FinancingObligations
Rentable square feet of commercial real estate (in square feet) | 31,157,000 hiw_RentableSquareFeetOfCommercialRealEstate |
Percentage of equity interest in joint venture | 50.00%hiw_PercentageOfEquityInterestInJointVenturesMaximum |
Harborview Financing Obligation [Member] |  |
Financing Obligations [Line Items] |  |
Financing obligations | 14,557,000 hiw_FinancingObligations / hiw_FinancingObligationsAxis = hiw_HarborviewFinancingObligationMember | 16,242,000 hiw_FinancingObligations / hiw_FinancingObligationsAxis = hiw_HarborviewFinancingObligationMember
Rentable square feet of commercial real estate (in square feet) | 205,000 hiw_RentableSquareFeetOfCommercialRealEstate / hiw_FinancingObligationsAxis = hiw_HarborviewFinancingObligationMember |
Percentage of equity interest in joint venture | 20.00%hiw_PercentageOfEquityInterestInJointVenturesMaximum / hiw_FinancingObligationsAxis = hiw_HarborviewFinancingObligationMember |
Equity interest in consolidated affiliate | 80.00%us-gaap_EquityMethodInvestmentOwnershipPercentage / hiw_FinancingObligationsAxis = hiw_HarborviewFinancingObligationMember |
Commencement date of put option term | Sep. 11, 2015 |
Transaction cost percentage to sell financing obligation | 3.00%hiw_CostToSellPutOptionInterest / hiw_FinancingObligationsAxis = hiw_HarborviewFinancingObligationMember |
Initial financing obligation | 12,700,000 hiw_InitialFinancingObligation / hiw_FinancingObligationsAxis = hiw_HarborviewFinancingObligationMember |
Additional financing obligation | 1,800,000 hiw_AdditionalFinancingObligation / hiw_FinancingObligationsAxis = hiw_HarborviewFinancingObligationMember |
Gross financing obligation increased for net income (in hundredths) | 80.00%hiw_IncreaseOfGrossFinancingObligation / hiw_FinancingObligationsAxis = hiw_HarborviewFinancingObligationMember |
Put option fair value | 11,500,000 hiw_PutOptionFairValue / hiw_FinancingObligationsAxis = hiw_HarborviewFinancingObligationMember | 12,800,000 hiw_PutOptionFairValue / hiw_FinancingObligationsAxis = hiw_HarborviewFinancingObligationMember
Tax Increment Financing Obligation Bond [Member] |  |
Financing Obligations [Line Items] |  |
Financing obligations | $ 8,962,000 hiw_FinancingObligations / hiw_FinancingObligationsAxis = hiw_TaxIncrementFinancingObligationBondMember | $ 10,422,000 hiw_FinancingObligations / hiw_FinancingObligationsAxis = hiw_TaxIncrementFinancingObligationBondMember
Term of period for financing obligation payments | 20 years |
Expiration date for financing obligation | Oct. 31, 2019 |
Discount rate of financing obligation | 6.93%hiw_DiscountRateFinancingObligation / hiw_FinancingObligationsAxis = hiw_TaxIncrementFinancingObligationBondMember |
Acquisition date of financing obligation | Dec. 01, 2007 |

X
- Definition Amount of additional financing obligation equal to the additional equity contributed by the entity's partner. + References No definition available. + Details
Name: | hiw_AdditionalFinancingObligation
Namespace Prefix: | hiw_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Percentage used to calculate the amount of put option interest intended for sales transaction costs. + References No definition available. + Details
Name: | hiw_CostToSellPutOptionInterest
Namespace Prefix: | hiw_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition The discount rate used to determine the net present value the financing obligation. + References No definition available. + Details
Name: | hiw_DiscountRateFinancingObligation
Namespace Prefix: | hiw_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition The date the financing obligation was acquired. + References No definition available. + Details
Name: | hiw_FinancingObligationAcquisitionDate
Namespace Prefix: | hiw_
Data Type: | xbrli:dateItemType
Balance Type: | na
Period Type: | duration

X
- Definition The expiration date of the financing obligation. + References No definition available. + Details
Name: | hiw_FinancingObligationExpirationDate
Namespace Prefix: | hiw_
Data Type: | xbrli:dateItemType
Balance Type: | na
Period Type: | duration

X
- Definition Carrying value as of balance sheet date of obligations incurred as part of real estate transactions that are, in substance, a financing arrangement rather than a sale. + References No definition available. + Details
Name: | hiw_FinancingObligations
Namespace Prefix: | hiw_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Details
Name: | hiw_FinancingObligationsLineItems
Namespace Prefix: | hiw_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The increase in gross financing obligation of the net income before depreciation, as a percentage. + References No definition available. + Details
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Namespace Prefix: | hiw_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of initial financing obligation equal to the equity contributed by the entity's partner. + References No definition available. + Details
Name: | hiw_InitialFinancingObligation
Namespace Prefix: | hiw_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The maximum percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting. + References No definition available. + Details
Name: | hiw_PercentageOfEquityInterestInJointVenturesMaximum
Namespace Prefix: | hiw_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition The commencement date of the one-year period for the put option begins. + References No definition available. + Details
Name: | hiw_PutOptionCommenceDate
Namespace Prefix: | hiw_
Data Type: | xbrli:dateItemType
Balance Type: | na
Period Type: | duration

X
- Definition The amount of fair value of the put option related to an entity's financing obligation. + References No definition available. + Details
Name: | hiw_PutOptionFairValue
Namespace Prefix: | hiw_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The amount of square footage related to real estate properties. + References No definition available. + Details
Name: | hiw_RentableSquareFeetOfCommercialRealEstate
Namespace Prefix: | hiw_
Data Type: | num:areaItemType
Balance Type: | na
Period Type: | instant

X
- Definition The term of period for financing obligation payments, in years. + References No definition available. + Details
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Namespace Prefix: | hiw_
Data Type: | us-types:durationStringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=6382943&loc=d3e33918-111571 + Details
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Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
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Namespace Prefix: |
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Balance Type: |
Period Type: |