Earnings Per Common Share - Schedule of Computation (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items]
Net income attributable to common stockholders	$ 188,276	$ 114,633	$ 559,222	$ 325,723
Earnings and dividends allocated to participating securities	(260)	(177)	(800)	(513)
Earnings for basic computations	188,016	114,456	558,422	325,210
Earnings and dividends allocated to participating securities	0	177	0	513
Income allocated to noncontrolling interest - Preferred Operating Partnership Units and Operating Partnership Units	9,810	0	29,395	0
Fixed component of income allocated to noncontrolling interest - Preferred Operating Partnership (Series A Units)	(572)	0	(1,716)	0
Net income for diluted computations	$ 197,254	$ 114,633	$ 586,101	$ 325,723
Weighted average common shares outstanding:
Average number of common shares outstanding - basic (in shares)	133,809,750	128,862,341	133,197,903	129,044,954
OP Units (in shares)	5,733,936	0	5,767,132	0
Unvested restricted stock awards included for treasury stock method (in shares)	0	214,909	0	212,311
Shares related to exchangeable senior notes and dilutive stock options (in shares)	6,103	793,846	14,366	808,856
Average number of common shares outstanding - diluted (in shares)	140,425,269	129,871,096	139,854,881	130,066,121
Earnings per common share
Basic (in dollars per share)	$ 1.41	$ 0.89	$ 4.19	$ 2.52
Diluted (in dollars per share)	$ 1.40	$ 0.88	$ 4.19	$ 2.50
Series A Units
Weighted average common shares outstanding:
Preferred Units (in shares)	875,480	0	875,480	0