EARNINGS PER COMMON SHARE - Calculations of Earnings Per Common Share (Detail) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Net income:
Net income	$ 102,273	$ 167,377	$ 201,608
Net income attributable to common stockholders	$ 99,597	$ 164,701	$ 198,932
Weighted-Average Shares:
Average common shares outstanding	216,904	216,614	215,709
Average potential dillutive common shares	764	520	968
Average common shares outstanding - assuming dillution	217,668	217,134	216,677
Earnings Per Share, Basic and Diluted [Abstract]
Basic	$ 0.46	$ 0.76	$ 0.92
Diluted	$ 0.46	$ 0.76	$ 0.92