Mortgage Notes Payable, Revolving Credit Facility, Interest Expense and Amortization of Deferred Debt Costs - Interest Expense and Amortization of Deferred Debt Costs (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Debt Disclosure [Abstract]
Interest incurred	$ 51,705	$ 52,044	$ 49,652
Amortization of deferred debt costs	1,570	1,518	1,610
Capitalized interest	(6,616)	(11,480)	(6,222)
Interest expense	46,659	42,082	45,040
Less: Interest income	140	248	272
Interest expense, net and amortization of deferred debt costs	$ 46,519	$ 41,834	$ 44,768