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SECURITIES AVAILABLE FOR SALE, HELD TO MATURITY, AND EQUITY SECURITIES - Narrative (Details)	3 Months Ended
	Mar. 31, 2023 USD ($) security	Mar. 31, 2022 USD ($)
Investment Holdings [Line Items]
Purchases of securities available for sale | $	$ 28,899,000	$ 386,636,000
Proceeds from sale of available-for-sale securities | $	$ 0	$ 0
Municipal bonds and obligations
Investment Holdings [Line Items]
Available-for-sale, securities in unrealized loss positions	30
Number of securities	94
Debt securities, continuous unrealized loss position, qualitative disclosure, aggregate losses percentage	6.40%
Held-to-maturity, securities in unrealized loss positions	94
Held-to-maturity securities portfolio, number of securities	186
Aggregate losses, percent	13.40%
Agency collateralized mortgage obligations
Investment Holdings [Line Items]
Available-for-sale, securities in unrealized loss positions	243
Number of securities	245
Debt securities, continuous unrealized loss position, qualitative disclosure, aggregate losses percentage	14.20%
Held-to-maturity, securities in unrealized loss positions	13
Held-to-maturity securities portfolio, number of securities	13
Aggregate losses, percent	14.50%
Agency commercial mortgage-backed securities
Investment Holdings [Line Items]
Available-for-sale, securities in unrealized loss positions	136
Number of securities	139
Debt securities, continuous unrealized loss position, qualitative disclosure, aggregate losses percentage	13.80%
Held-to-maturity, securities in unrealized loss positions	17
Held-to-maturity securities portfolio, number of securities	17
Aggregate losses, percent	17.00%
Corporate bonds
Investment Holdings [Line Items]
Available-for-sale, securities in unrealized loss positions	14
Number of securities	15
Debt securities, continuous unrealized loss position, qualitative disclosure, aggregate losses percentage	7.90%
Other bonds and obligations
Investment Holdings [Line Items]
Available-for-sale, securities in unrealized loss positions	2
Number of securities	3
Debt securities, continuous unrealized loss position, qualitative disclosure, aggregate losses percentage	18.30%
Tax advantaged economic development bonds
Investment Holdings [Line Items]
Held-to-maturity, securities in unrealized loss positions	1
Held-to-maturity securities portfolio, number of securities	2
Aggregate losses, percent	9.40%

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