CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Statement of Comprehensive Income [Abstract]
Net income	$ 41,475	$ 18,420
Other comprehensive income (loss):
Change in unrealized income (loss) on interest rate swaps, net	5,346	(16,996)
Other comprehensive income (loss)	5,346	(16,996)
Comprehensive income	46,821	1,424
Comprehensive income attributable to noncontrolling interests	(433)	(266)
Comprehensive income attributable to Lexington Realty Trust shareholders	$ 46,388	$ 1,158