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GOODWILL AND OTHER INTANGIBLE ASSETS, NET - Additional Information (Details) - USD ($)			12 Months Ended
	Oct. 01, 2021	Aug. 31, 2020	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Finite-Lived Intangible Assets [Line Items]
Goodwill			$ 94,301,000	$ 37,144,000	$ 37,144,000	$ 37,144,000
Goodwill, acquired			57,157,000	0	0
Accumulated impairment losses at end of year			2,100,000	2,100,000	2,100,000
Goodwill, impairment loss	$ 0	$ 0	0	0	0
Impairment on intangible assets			$ 0	$ 0	$ 0
Core Deposits
Finite-Lived Intangible Assets [Line Items]
Amortization period of other intangible assets			10 years
Weighted average amortization period			8 years 1 month 6 days

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