CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Gross revenues:
Rental revenue	$ 325,811	$ 320,622	$ 395,339
Total gross revenues	330,448	325,969	396,971
Expense applicable to revenues:
Depreciation and amortization	(161,592)	(147,594)	(168,191)
General and administrative	(30,371)	(30,785)	(31,662)
Non-operating income	743	2,262	1,859
Interest and amortization expense	(55,201)	(65,095)	(79,880)
Debt satisfaction gains (charges), net	21,452	(4,517)	(2,596)
Impairment charges	(14,460)	(5,329)	(95,813)
Gains on sales of properties	139,039	250,889	252,913
Income (loss) before provision for income taxes and equity in earnings of non-consolidated entities	188,144	283,782	230,926
Provision for income taxes	(1,584)	(1,379)	(1,728)
Equity in earnings (losses) of non-consolidated entities	(169)	2,890	1,708
Net income	186,391	285,293	230,906
Less net income attributable to noncontrolling interests	(3,089)	(5,383)	(3,491)
Net income attributable to Lexington Realty Trust shareholders	183,302	279,910	227,415
Dividends attributable to preferred shares - Series C	(6,290)	(6,290)	(6,290)
Allocation to participating securities	(224)	(395)	(287)
Net income attributable to common shareholders	$ 176,788	$ 273,225	$ 220,838
Net income attributable to common shareholders - basic (usd per share)	$ 0.66	$ 1.15	$ 0.93
Weighted-average common shares outstanding - basic (in shares)	266,914,843	237,642,048	236,666,375
Net income attributable to common shareholders - diluted (usd per share)	$ 0.66	$ 1.15	$ 0.93
Weighted-average common shares outstanding - diluted (in shares)	268,182,552	237,934,515	240,810,990
Other
Gross revenues:
Other income	$ 4,637	$ 5,347	$ 1,632
Real Estate
Expense applicable to revenues:
Property operating	$ (41,914)	$ (42,018)	$ (42,675)