CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Statement of Comprehensive Income [Abstract]
Net income	$ 50,792	$ 34,371
Other comprehensive loss:
Change in unrealized loss on interest rate swaps, net	(4,625)	(4,096)
Other comprehensive loss	(4,625)	(4,096)
Comprehensive income	46,167	30,275
Comprehensive income attributable to noncontrolling interests	(1,023)	(866)
Comprehensive income attributable to Lexington Realty Trust shareholders	$ 45,144	$ 29,409