CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ (27,262)	$ (5,200)	$ 72,875	$ 79,378
Other comprehensive income (loss):
Change in unrealized gain (loss) on interest rate swaps, net	2,637	(3,990)	(2,944)	(6,620)
Other comprehensive income (loss)	2,637	(3,990)	(2,944)	(6,620)
Comprehensive income (loss)	(24,625)	(9,190)	69,931	72,758
Comprehensive (income) loss attributable to noncontrolling interests	2,232	(784)	340	(2,525)
Comprehensive income (loss) attributable to Lexington Realty Trust shareholders	$ (22,393)	$ (9,974)	$ 70,271	$ 70,233