NET INCOME PER COMMON SHARE - Reconciliation of Basic and Diluted Net Income Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Net Income Available to Common Stockholders
Net income available to common stockholders	$ 55,898	$ 63,283	$ 179,901	$ 150,391
Diluted net income per common share	$ 55,898	$ 63,283	$ 179,901	$ 150,391
Weighted-Average Common Shares
Net income available to common stockholders (in shares)	59,335,877	59,096,688	59,272,401	57,200,843
Effect of potentially dilutive stock options and restricted stock awards (in shares)	166,648	242,041	192,997	266,716
Diluted net income per common share (in shares)	59,502,525	59,338,729	59,465,398	57,467,559
Per Share Amount
Net income available to common stockholders (in dollars per share)	$ 0.95	$ 1.08	$ 3.04	$ 2.63
Diluted net income per common share (in dollars per share)	$ 0.94	$ 1.08	$ 3.03	$ 2.62