CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (Unaudited) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Statement of Comprehensive Income [Abstract]
Net income	$ 15,287	$ 7,832	$ 17,101	$ 5,709
Other comprehensive income (loss):
Change in unrealized gain (loss) on interest rate swaps, net	(3,993)	9,434	(4,505)	10,136
Other comprehensive income (loss)	(3,993)	9,434	(4,505)	10,136
Comprehensive income	11,294	17,266	12,596	15,845
Comprehensive income attributable to noncontrolling interests	(837)	(1,100)	(1,765)	(1,597)
Comprehensive income attributable to Lexington Realty Trust shareholders	$ 10,457	$ 16,166	$ 10,831	$ 14,248