SUMMARY OF ORGANIZATION - Additional Information (Details) - USD ($) $ / shares in Units, $ in Thousands				3 Months Ended				6 Months Ended
	Jul. 27, 2022	May 25, 2022	Feb. 25, 2022	Jun. 30, 2022	Mar. 31, 2022	Jun. 30, 2021	Mar. 31, 2021	Jun. 30, 2022	Jun. 30, 2021	Dec. 31, 2021	Dec. 31, 2020
SUBSEQUENT EVENTS
Loans, excluding Loans held for sale								$ 3,093,000
Deposits				$ 5,306,197				5,306,197		$ 5,226,784
Stockholders' equity				560,452	$ 590,440	$ 660,052	$ 643,949	560,452	$ 660,052	676,172	$ 644,815
Net income				15,753	$ 16,829	$ 15,600	$ 16,644	32,582	$ 32,244
Total assets				$ 6,037,425				$ 6,037,425		$ 6,077,414
Dividends on common stock, per share		$ 0.18	$ 0.17
Dividends declared				$ 0.18	$ 0.17	$ 0.14	$ 0.13
Subsequent Event
SUBSEQUENT EVENTS
Dividends declared	$ 0.19