CREDIT QUALITY ASSESSMENT - Non-accrual Loans (Details) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2022	Dec. 31, 2021
Financing Receivable, Nonaccrual [Line Items]
Average non-accrual loans for the period	$ 42,795	$ 79,792
Contractual interest income due on non- accrual loans during the period	1,802	5,092
Commercial real estate: | Commercial investor real estate
Financing Receivable, Nonaccrual [Line Items]
Average non-accrual loans for the period	12,379	31,590
Contractual interest income due on non- accrual loans during the period	609	2,169
Commercial real estate: | Commercial owner-occupied real estate
Financing Receivable, Nonaccrual [Line Items]
Average non-accrual loans for the period	7,888	9,444
Contractual interest income due on non- accrual loans during the period	301	555
Commercial real estate: | Commercial AD&C
Financing Receivable, Nonaccrual [Line Items]
Average non-accrual loans for the period	771	9,236
Contractual interest income due on non- accrual loans during the period	0	597
Commercial Business
Financing Receivable, Nonaccrual [Line Items]
Average non-accrual loans for the period	7,879	12,678
Contractual interest income due on non- accrual loans during the period	389	1,096
Residential real estate: | Residential mortgage
Financing Receivable, Nonaccrual [Line Items]
Average non-accrual loans for the period	7,852	9,439
Contractual interest income due on non- accrual loans during the period	260	271
Residential real estate: | Residential construction
Financing Receivable, Nonaccrual [Line Items]
Average non-accrual loans for the period	27	36
Contractual interest income due on non- accrual loans during the period	0	2
Consumer
Financing Receivable, Nonaccrual [Line Items]
Average non-accrual loans for the period	5,999	7,369
Contractual interest income due on non- accrual loans during the period	$ 243	$ 402