EARNINGS PER COMMON SHARE - Computation of Basic and Diluted Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Numerator for basic and diluted earnings per share -income available to common shareholders:
Net income	$ 52,451	$ 63,061	$ 163,945	$ 199,131
Denominator for basic earnings per share - weighted average shares	94,473,666	94,030,275	94,377,010	93,896,716
Effect of dilutive securities -
Employee stock awards	1,005,844	1,095,994	1,001,228	1,189,155
Denominator for diluted earnings per share - adjusted weighted average shares	95,479,510	95,126,269	95,378,238	95,085,871
Basic	$ 0.56	$ 0.67	$ 1.74	$ 2.12
Diluted	$ 0.55	$ 0.66	$ 1.72	$ 2.09