Amount of cost not yet recognized for nonvested award under share-based payment arrangement.

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Share-Based Payments (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense	$ 900	$ 1,200	$ 5,512	$ 5,468
Total unrecognized stock-based compensation costs	$ 6,400		$ 6,400
Weighted average remaining contractual term for recognition of unrecognized stock-based compensation costs (in years)			2 years 3 months 18 days
Highwoods Properties, Inc. [Member] \| Time-Based Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock shares granted (in shares)			90,218
Weighted average grant date fair value of each restricted stock share granted (in dollars per share)			$ 46.31
Highwoods Properties, Inc. [Member] \| Total Return-Based Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock shares granted (in shares)			73,972
Weighted average grant date fair value of each restricted stock share granted (in dollars per share)			$ 41.13