Schedule of Calculation of Numerator and Denominator in Earnings Per Share (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Net income attributable to common stockholders, Basic	$ 54,157	$ 188,886	$ 159,207
Net income attributable to common stockholders, Diluted	54,157	188,886	159,207
Net income attributable to non-controlling interest, Diluted	1,181
Diluted net income attributable to common stockholders	$ 55,338	$ 188,886	$ 159,207
Weighted average common shares outstanding, Basic	119,559	119,028	118,544
Weighted average shares and assumed conversions	120,929	119,164	118,716
BASIC EARNINGS PER SHARE	$ 0.45	$ 1.59	$ 1.34
DILUTED EARNINGS PER SHARE	$ 0.45	$ 1.59	$ 1.34
Stock options
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Effect of dilutive securities		22	111
Restricted stock based awards
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Effect of dilutive securities	28	114	61
Non-controlling interest - Operating Partnership Units
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Effect of dilutive securities	1,342