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