Description of Business and Significant Accounting Policies (Details) $ in Millions	3 Months Ended	12 Months Ended
	Mar. 31, 2020 USD ($) a ft² shares	Dec. 31, 2019
Description of Business [Abstract]
Rentable square feet of commercial real estate properties (in sq feet) | ft²	28,100,000
Rentable square feet of commercial real estate office properties under development (in sq feet) | ft²	1,200,000
Undeveloped land suitable for future development (in acres) | a	250
Self insurance liability	$ 0.6
Highwoods Properties, Inc. [Member]
Description of Business [Abstract]
Common Units of partnership owned by the Company (in shares) | shares	103,500,000
Percentage of ownership of Common Units (in hundredths)	97.30%
Issuance of Common Units in acquisition (in units) | shares	118,592
Highwoods Realty Limited Partnership [Member]
Description of Business [Abstract]
Common Units of partnership not owned by the Company (in shares) | shares	2,800,000
Variable Interest Entity, Primary Beneficiary [Member]
Description of Business [Abstract]
Rentable square feet of commercial real estate office properties under development (in sq feet) | ft²	150,000
VIE like-kind exchange agreement (in days)		180 days
VIE total assets	$ 438.9
VIE total liabilities	21.7
VIE total cash flows	$ 4.8
Percentage acquired in VIE (in hundredths)	100.00%