Investments in and Advances to Joint Ventures - Condensed Combined Statements of Operations of Unconsolidated Joint Venture Investments (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Schedule Of Equity Method Investments [Line Items]
Revenues from operations	$ 107,571	$ 128,657	$ 236,881	$ 259,679
Expenses from operations:
Operating expenses	88,242	91,533	178,748	185,457
Impairment charges			0	620
Depreciation and amortization	40,873	40,060	83,866	82,668
Interest expense	19,811	21,087	40,398	42,813
Other expense, net	612	85	18,021	(68)
Net (loss) income	(4,403)	17,537	30,225	53,632
Company's share of equity in net (loss) income of joint ventures	(1,578)	1,602	437	2,447
Basis differential adjustments	65	189	221	387
Equity in net (loss) income of joint ventures	(1,513)	1,791	658	2,834
Unconsolidated Joint Ventures [Member]
Schedule Of Equity Method Investments [Line Items]
Revenues from operations	53,266	105,580	138,887	214,683
Expenses from operations:
Operating expenses	18,633	30,482	43,048	60,543
Impairment charges	1,520	0	33,240	12,267
Depreciation and amortization	23,575	36,969	53,679	76,473
Interest expense	15,100	25,286	32,855	50,942
Preferred share expense	4,554	5,484	9,084	10,943
Other expense, net	2,941	5,885	7,598	11,341
Total expenses	66,323	104,106	179,504	222,509
(Loss) income before gain (loss) on disposition of real estate	(13,057)	1,474	(40,617)	(7,826)
Gain (loss) on disposition of real estate, net	4	(321)	8,910	15,645
Net (loss) income	$ (13,053)	$ 1,153	$ (31,707)	$ 7,819