Schedule of Calculation of Numerator and Denominator in Earnings Per Share (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended						9 Months Ended
	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Sep. 30, 2021	Sep. 30, 2020
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Net income (loss) attributable to common stockholders, Basic	$ 30,012			$ 26,717			$ (79,933)	$ 80,960
Net income (loss) attributable to common stockholders, Diluted	30,012			26,717			(79,933)	80,960
Net income attributable to non-controlling interest, Diluted								1,181
Diluted net income (loss) attributable to common stockholders	$ 30,012	$ 15,623	$ (125,568)	$ 26,717	$ 22,186	$ 33,238	$ (79,933)	$ 82,141
Weighted average common shares outstanding, Basic	120,285			119,632			120,161	119,533
Weighted average shares and assumed conversions	122,049			120,980			121,827	120,900
BASIC EARNINGS (LOSS) PER SHARE	$ 0.25			$ 0.22			$ (0.67)	$ 0.68
DILUTED EARNINGS (LOSS) PER SHARE	$ 0.25			$ 0.22			$ (0.67)	$ 0.68
Restricted stock based awards
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Effect of dilutive securities	641			6			397	25
Non-controlling interest - Operating Partnership Units
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Effect of dilutive securities	1,123			1,342			1,269	1,342