Earnings Per Common Share - Schedule of Computation (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items]
Net income attributable to common stockholders	$ 167,948	$ 102,911	$ 370,946	$ 211,090
Earnings and dividends allocated to participating securities	(232)	(173)	(541)	(336)
Earnings for basic computations	167,716	102,738	370,405	210,754
Income allocated to noncontrolling interest - Preferred Operating Partnership Units and Operating Partnership Units	8,833	0	21,889	0
Fixed component of income allocated to noncontrolling interest - Preferred Operating Partnership (Series A Units)	(572)	0	(1,144)	0
Net income for diluted computations	$ 175,977	$ 102,738	$ 391,150	$ 210,754
Weighted average common shares outstanding:
Average number of common shares outstanding - basic (in shares)	133,756,610	128,932,152	132,886,933	129,110,131
OP Units (in shares)	5,767,460	0	5,784,003	0
Shares related to exchangeable senior notes and dilutive stock options (in shares)	7,645	150,316	17,086	175,544
Average number of common shares outstanding - diluted (in shares)	140,407,195	129,082,468	140,428,558	129,285,675
Earnings per common share
Basic (in dollars per share)	$ 1.25	$ 0.80	$ 2.79	$ 1.63
Diluted (in dollars per share)	$ 1.25	$ 0.80	$ 2.79	$ 1.63
Series A Units
Weighted average common shares outstanding:
Preferred Units (in shares)	875,480	0	875,480	0
Series D Units
Weighted average common shares outstanding:
Preferred Units (in shares)	0	0	865,056	0