SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Schedule of Earnings Per Share (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Accounting Policies [Abstract]
Net income available to common shareholders	$ 269,105	$ 346,540	$ 376,913
Weighted average number of common shares outstanding (in shares)	68,977,453	69,193,591	69,431,860
Effect of dilutive stock options (in shares)	45	17,276	61,705
Effect of dilutive restricted stock awards (in shares)	62,534	79,536	143,001
Effect of performance share units (in shares)	64,126	129,318	124,828
Weighted average number of common shares outstanding used to calculate diluted earnings per share (in shares)	69,104,158	69,419,721	69,761,394