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Subsequent Events (Details) $ / shares in Units, $ in Millions |  |  | 12 Months Ended
--- | --- | --- | ---
Feb. 06, 2018 $ / shares | Feb. 05, 2018 USD ($) a parcels | Dec. 31, 2017 a $ / shares | Dec. 31, 2016 $ / shares | Dec. 31, 2015 $ / shares
Subsequent Event [Line Items] |  |  |  |  |
Undeveloped land suitable for future development (in acres) | a |  |  | 400 |  |
Highwoods Properties, Inc. [Member] |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |
Dividends declared per share of Common Stock (in dollars per share) | $ / shares |  |  | $ 1.76 | $ 2.50 | $ 1.70
Highwoods Properties, Inc. [Member] | Subsequent Event [Member] |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |
Dividends declared per share of Common Stock (in dollars per share) | $ / shares | $ 0.4625 |  |  |  |
Nashville, TN Development Land Acquisition (2/2018) [Member] | Subsequent Event [Member] |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |
Number of development parcels acquired (in parcels) | parcels |  | 2 |  |  |
Undeveloped land suitable for future development (in acres) | a |  | 9 |  |  |
Acquisition purchase price | $ |  | $ 50.3 |  |  |

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- Definition The number of real estate development parcels acquired. + References No definition available. + Details
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- Definition Aggregate dividends declared during the period for each share of common stock outstanding. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770 + Details
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- Definition The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3213-108585 + Details
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- Definition Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event. + References No definition available. + Details
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