CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (UNAUDITED) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
		Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Statement Of Income And Comprehensive Income [Abstract]
Net income		$ 11,000	$ 44,261	$ 23,174	$ 10,398
Other comprehensive (loss) income:
Change in value of interest rate swaps		(4,131)	3,392	(28,502)	23,738
Pro rata share of other comprehensive income (loss) of unconsolidated joint ventures	[1]	41	(262)	(143)	(105)
Comprehensive income (loss)		6,910	47,391	(5,471)	34,031
Less comprehensive (income) loss attributable to noncontrolling interests in:
Consolidated joint ventures		(3,051)	(2,713)	(8,253)	(5,520)
Consolidated real estate fund		(106)	(30)	(205)	(612)
Operating Partnership		(362)	(4,233)	1,335	(2,622)
Comprehensive income (loss) attributable to common stockholders		$ 3,391	$ 40,415	$ (12,594)	$ 25,277

[1] No amounts were reclassified from accumulated other comprehensive (loss) income during any of the periods set forth above.