CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (UNAUDITED) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Statement Of Income And Comprehensive Income [Abstract]
Net income (loss)		$ 5,174	$ (36,578)	$ 12,174	$ (33,863)
Other comprehensive (loss) income:
Change in value of interest rate swaps		(15,345)	5,795	(24,371)	20,346
Pro rata share of other comprehensive (loss) income of unconsolidated joint ventures	[1]	(76)	103	(184)	157
Comprehensive loss		(10,247)	(30,680)	(12,381)	(13,360)
Less comprehensive (income) loss attributable to noncontrolling interests in:
Consolidated joint ventures		(2,408)	(1,752)	(5,202)	(2,807)
Consolidated real estate fund		(48)	(152)	(99)	(582)
Operating Partnership		1,209	3,103	1,697	1,611
Comprehensive loss attributable to common stockholders		$ (11,494)	$ (29,481)	$ (15,985)	$ (15,138)

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