INVESTMENT SECURITIES - Narrative (Details)	12 Months Ended
	Dec. 31, 2021 position
Investments, Debt and Equity Securities [Abstract]
Percentage of debt securities considered to be of investment-grade (percent)	95.00%
Maximum individual state general bond obligation as a percentage of total debt securities (percent)	1.00%
Securities in unrealized loss position, number of positions	720
Securities, number of positions	1,730