Schedule of Calculation of Numerator and Denominator in Earnings Per Share (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Net income attributable to common stockholders, Basic	$ 32,057	$ 49,340
Net income attributable to common stockholders, Diluted	32,057	49,340
Net income attributable to non-controlling interest, Diluted	1,181
Diluted net income attributable to common stockholders	$ 33,238	$ 49,340
Weighted average common shares outstanding, Basic	119,336	118,836
Weighted average common shares outstanding, Basic	119,336	118,836
Non-controlling interest – Operating Partnership Units	1,342
Weighted average shares and assumed conversions	120,725	118,918
BASIC EARNINGS PER SHARE	$ 0.27	$ 0.42
DILUTED EARNINGS PER SHARE	$ 0.27	$ 0.41
Stock options
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Effect of dilutive securities		36
Restricted stock based awards
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Effect of dilutive securities	47	46