CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (UNAUDITED) - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2019	Mar. 31, 2018
Statement Of Income And Comprehensive Income [Abstract]
Net income		$ 7,000	$ 2,715
Other comprehensive (loss) income:
Change in value of interest rate swaps		(9,026)	14,551
Pro rata share of other comprehensive (loss) income of unconsolidated joint ventures	[1]	(108)	54
Comprehensive (loss) income		(2,134)	17,320
Less comprehensive (income) loss attributable to noncontrolling interests in:
Consolidated joint ventures		(2,794)	(1,055)
Consolidated real estate fund		(51)	(430)
Operating Partnership		488	(1,492)
Comprehensive (loss) income attributable to common stockholders		$ (4,491)	$ 14,343

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