Earnings Per Share - Reconciliation of Net Income and Number of Common Shares Used in Computations of "Basic" EPS and "Diluted" EPS (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Earnings Per Share [Abstract]
Net income	$ 13,955	$ 16,181
Income attributable to non-controlling interests	(18)	(173)
Preferred dividends	(2,789)	(5,133)
Earnings attributable to unvested shares and OP units	(126)	(115)
Net income attributable to common shareholders after allocation to participating securities	$ 11,022	$ 10,760
Denominators – Number of Shares
Basic—Average shares outstanding	212,103	198,534
PRSUs	1,100	911
Diluted—Average shares outstanding	213,203	199,445
Earnings Per Share:
Basic	$ 0.05	$ 0.05
Diluted	$ 0.05	$ 0.05