Equity - Effects of Changes in Noncontrolling Interests (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2019	Mar. 31, 2018
Equity [Abstract]
Net income (loss) attributable to Lexington Realty Trust shareholders	$ 28,027	$ (14,315)
Transfers from noncontrolling interests:
Increase in additional paid-in-capital for redemption of noncontrolling OP units	156	0
Change from net income (loss) attributable to shareholders and transfers from noncontrolling interests	$ 28,183	$ (14,315)

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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