CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Statement Of Income And Comprehensive Income [Abstract]
Net (loss) income		$ (29,603)	$ 18,993	$ 107,176
Other comprehensive (loss) income:
Change in value of interest rate swaps		(28,069)	7,273	10,618
Pro rata share of other comprehensive income (loss) of unconsolidated joint ventures	[1]	206	(129)	160
Comprehensive (loss) income		(57,466)	26,137	117,954
Less comprehensive (income) loss attributable to noncontrolling interests in:
Consolidated joint ventures		(11,022)	(8,182)	10,365
Consolidated real estate fund		(360)	(665)	(19,797)
Operating Partnership		6,726	(1,605)	(12,430)
Comprehensive (loss) income attributable to common stockholders		$ (62,122)	$ 15,685	$ 96,092

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