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LOANS - Loan Summary (Details) - USD ($) $ in Thousands | Sep. 30, 2021 | Jun. 30, 2021 | Dec. 31, 2020 | Sep. 30, 2020 | Jun. 30, 2020 | Dec. 31, 2019
--- | --- | --- | --- | --- | --- | ---
Loans receivable, net |  |  |  |  |  |
Gross loans, including deferred origination costs | $ 7,282,582 |  | $ 7,415,952 |  |  |
Allowance for credit losses | (49,499) | $ (51,750) | (60,869) | $ (64,962) | $ (64,437) | $ (49,911)
Net loans | 7,233,083 |  | 7,355,083 |  |  |
Commercial Portfolio Segment [Member] | Business Lending [Member] |  |  |  |  |  |
Loans receivable, net |  |  |  |  |  |
Gross loans, including deferred origination costs | 3,092,177 |  | 3,440,077 |  |  |
Allowance for credit losses | (20,026) | (23,417) | (28,190) | (27,074) | (24,204) | (19,426)
Residential Portfolio Segment [Member] | Consumer Mortgage [Member] |  |  |  |  |  |
Loans receivable, net |  |  |  |  |  |
Gross loans, including deferred origination costs | 2,470,974 |  |  |  |  |
Allowance for credit losses | (9,745) | (10,001) | (10,672) | (12,264) | (13,088) | (10,269)
Consumer Portfolio Segment [Member] | Consumer Mortgage [Member] |  |  |  |  |  |
Loans receivable, net |  |  |  |  |  |
Gross loans, including deferred origination costs | 2,470,974 |  | 2,401,499 |  |  |
Consumer Portfolio Segment [Member] | Consumer Indirect [Member] |  |  |  |  |  |
Loans receivable, net |  |  |  |  |  |
Gross loans, including deferred origination costs | 1,168,378 |  | 1,021,885 |  |  |
Allowance for credit losses | (12,045) | (11,103) | (13,696) | (14,733) | (15,866) | (13,712)
Consumer Portfolio Segment [Member] | Consumer Direct [Member] |  |  |  |  |  |
Loans receivable, net |  |  |  |  |  |
Gross loans, including deferred origination costs | 155,602 |  | 152,657 |  |  |
Allowance for credit losses | (2,670) | (2,548) | (3,207) | (3,793) | (4,028) | (3,255)
Consumer Portfolio Segment [Member] | Home Equity [Member] |  |  |  |  |  |
Loans receivable, net |  |  |  |  |  |
Gross loans, including deferred origination costs | 395,451 |  | 399,834 |  |  |
Allowance for credit losses | $ (1,720) | $ (1,796) | $ (2,222) | $ (2,547) | $ (2,690) | $ (2,129)

X
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