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Description of Business and Significant Accounting Policies (Details) shares in Millions, ft² in Millions, $ in Millions | Mar. 31, 2021 USD ($) ft² a shares
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Description of Business [Abstract] |
Rentable square feet of commercial real estate properties (in sq feet) | ft² | 27.4
Rentable square feet of commercial real estate office properties under development (in sq feet) | ft² | 0.8
Undeveloped land suitable for future development (in acres) | a | 230
Self insurance liability | $ | $ 0.4
Deferred rents included in accounts receivable | $ | $ 2.5
Highwoods Properties, Inc. [Member] |
Description of Business [Abstract] |
Common Units of partnership owned by the Company (in shares) | shares | 103.6
Percentage of ownership of Common Units (in hundredths) | 97.30%
Highwoods Realty Limited Partnership [Member] |
Description of Business [Abstract] |
Common Units of partnership not owned by the Company (in shares) | shares | 2.8

X
- Definition Area of undeveloped land parcels owned in acres. + References No definition available. + Details
Name: | hiw_AreaOfUndevelopedLand
Namespace Prefix: | hiw_
Data Type: | num:areaItemType
Balance Type: | na
Period Type: | instant

X
- Definition The number of units not held by the Company. + References No definition available. + Details
Name: | hiw_CommonUnitsOfPartnershipNotOwned
Namespace Prefix: | hiw_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition The number of units held by the Company. + References No definition available. + Details
Name: | hiw_CommonUnitsOfPartnershipOwned
Namespace Prefix: | hiw_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition The percentage of units held by the Company. + References No definition available. + Details
Name: | hiw_CommonUnitsPercentageInvestmentOfPartnershipOwned
Namespace Prefix: | hiw_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Amount included in accounts receivable for temporary rent deferrals granted to lessees. + References No definition available. + Details
Name: | hiw_DeferredRentReceivable
Namespace Prefix: | hiw_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Description of Business [Abstract] + References No definition available. + Details
Name: | hiw_DescriptionOfBusinessAbstract
Namespace Prefix: | hiw_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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 number of real estate properties under/planned for development as of the balance sheet date. + References No definition available. + Details
Name: | hiw_RentableSquareFeetOfCommercialRealEstateUnderDevelopment
Namespace Prefix: | hiw_
Data Type: | num:areaItemType
Balance Type: | na
Period Type: | instant

X
- Definition Carrying amount (including both current and noncurrent portions) of accrued known and estimated losses incurred as of the balance sheet date for which no insurance coverage exists, and for which a claim has been made or is probable of being asserted. + References No definition available. + Details
Name: | hiw_SelfInsuranceLiability
Namespace Prefix: | hiw_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Details
Name: | srt_ConsolidatedEntitiesAxis=srt_ParentCompanyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ConsolidatedEntitiesAxis=srt_SubsidiariesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |