Income Taxes (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Highwoods Properties, Inc. [Member]
Income Tax Disclosure [Line Items]
Minimum dividend required to maintain REIT status (in dollars per share)	$ 1.41	$ 1.44	$ 1.26
Tax basis of assets	$ 4,700,000	$ 4,700,000
Tax basis of liabilities	2,800,000	2,900,000
Income Tax Expense/(Benefit) [Abstract]
Current federal tax expense	110	202	$ 133
Current state tax expense	240	148	112
Current tax expense	350	350	245
Deferred federal tax expense/(benefit)	(9)	14	(95)
Deferred state tax benefit	(4)	(120)	(68)
Deferred tax benefit	(13)	(106)	(163)
Total income tax expense	337	244	$ 82
Net deferred tax liabilities	100	100
Highwoods Realty Limited Partnership [Member]
Income Tax Disclosure [Line Items]
Tax basis of assets	4,600,000	4,700,000
Tax basis of liabilities	$ 2,800,000	$ 2,900,000