Amount of allowance to cover probable credit losses on loans and leases. Includes carryover of or adjustments to the allowance for loan losses in connection with business combinations. Excludes allowance for loans and leases covered under loss sharing agreements.

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Amount after allowance and deduction of deferred interest and fees, unamortized costs and premiums and discounts from face amounts, of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Excludes loans and leases covered under loss sharing agreements and loans held for sale.

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LOANS AND ALLOWANCE FOR CREDIT LOSSES - Loan Summary (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021	Mar. 31, 2021	Dec. 31, 2020
Loans receivable, net
Gross loans, including deferred origination costs	$ 7,422,253	$ 7,373,639
Allowance for credit losses	(50,147)	(49,869)	$ (55,069)	$ (60,869)
Net loans	7,372,106	7,323,770
Commercial Portfolio Segment \| Business Lending
Loans receivable, net
Gross loans, including deferred origination costs	3,102,533	3,075,904
Allowance for credit losses	(20,008)	(21,021)	(27,042)	(28,190)
Residential Portfolio Segment \| Consumer Mortgage
Loans receivable, net
Allowance for credit losses	(10,324)	(10,017)	(9,686)	(10,672)
Consumer Portfolio Segment \| Consumer Mortgage
Loans receivable, net
Gross loans, including deferred origination costs	2,592,586	2,556,114
Consumer Portfolio Segment \| Consumer Indirect
Loans receivable, net
Gross loans, including deferred origination costs	1,176,373	1,189,749
Allowance for credit losses	(12,866)	(11,737)	(11,120)	(13,696)
Consumer Portfolio Segment \| Consumer Direct
Loans receivable, net
Gross loans, including deferred origination costs	152,445	153,811
Allowance for credit losses	(2,725)	(2,306)	(2,682)	(3,207)
Consumer Portfolio Segment \| Home Equity
Loans receivable, net
Gross loans, including deferred origination costs	398,316	398,061
Allowance for credit losses	$ (1,468)	$ (1,814)	$ (1,543)	$ (2,222)