Earnings Per Share - Computation of Basic and Diluted Earnings Per Share (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Numerator:
Net income	$ 15,272	$ 10,717
Less: Preferred stock dividends	(3,636)	(2,423)
Less: net income attributable to noncontrolling interests	(717)	(201)
Less: Net income attributable to participating securities	(131)	(114)
NET INCOME ATTRIBUTABLE TO COMMON STOCKHOLDERS	$ 10,788	$ 7,979
Denominator:
Weighted average shares of common stock outstanding - basic (in shares)	114,054,434	98,342,677
Effect of dilutive securities - performance units (in shares)	259,897	265,109
Weighted average shares of common stock outstanding - diluted (in shares)	114,314,331	98,607,786
Earnings per share — Basic
Net income attributable to common stockholders - basic (in dollars per share)	$ 0.09	$ 0.08
Earnings per share — Diluted
Net income attributable to common stockholders - diluted (in dollars per share)	$ 0.09	$ 0.08