GOODWILL AND OTHER INTANGIBLE ASSETS - Narrative (Details) - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
GOODWILL AND OTHER INTANGIBLE ASSETS
Carrying amount of goodwill	$ 155,797,000	$ 55,638,000	$ 55,638,000	$ 55,638,000
Impairment of goodwill	0	0	0
Net carrying amount of intangible assets	8,362,000	0
Amortization expense recognized on intangible assets	$ 2,622,000	$ 0	$ 0