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FAIR VALUE MEASUREMENTS - Measured on Non-recurring Basis (Details) - Non-recurring - Level 3 - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Dec. 31, 2020
Assets
Individually evaluated loans	$ 10,556	$ 8,746
Capitalized servicing rights	4,693	3,605
Premises held for sale	971	962
Total	16,220	13,313
Total Gains (Losses)	(2,907)
Impaired loans
Assets
Total Gains (Losses)	(1,810)
Capitalized servicing rights
Assets
Total Gains (Losses)	(1,088)
Assets held for sale
Assets
Premises held for sale	971	$ 962
Total Gains (Losses)	$ (9)

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The balance of financing receivables that were individually evaluated for impairment.

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