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LOANS AND ALLOWANCE FOR CREDIT LOSSES - Loan Summary (Details) - USD ($) $ in Thousands | Mar. 31, 2024 | Dec. 31, 2023 | Mar. 31, 2023 | Dec. 31, 2022
--- | --- | --- | --- | ---
Loans receivable, net |  |  |  |
Loans | $ 9,883,500 | $ 9,704,598 |  |
Allowance for credit losses | (70,091) | (66,669) |  |
Loans, net of allowance for credit losses | 9,813,409 | 9,637,929 |  |
CRE - multifamily |  |  |  |
Loans receivable, net |  |  |  |
Loans | 658,278 | 619,794 |  |
CRE - owner occupied |  |  |  |
Loans receivable, net |  |  |  |
Loans | 777,302 | 752,774 |  |
CRE - non-owner occupied |  |  |  |
Loans receivable, net |  |  |  |
Loans | 1,750,038 | 1,711,198 |  |
Commercial & industrial and other business loans |  |  |  |
Loans receivable, net |  |  |  |
Loans | 1,034,581 | 1,000,630 |  |
Business lending |  |  |  |
Loans receivable, net |  |  |  |
Loans | 4,220,199 | 4,084,396 |  |
Consumer mortgage |  |  |  |
Loans receivable, net |  |  |  |
Loans | 3,317,467 | 3,285,018 |  |
Consumer indirect |  |  |  |
Loans receivable, net |  |  |  |
Loans | 1,716,028 | 1,703,440 |  |
Consumer direct |  |  |  |
Loans receivable, net |  |  |  |
Loans | 183,750 | 185,229 |  |
Home equity |  |  |  |
Loans receivable, net |  |  |  |
Loans | 446,056 | 446,515 |  |
Commercial Portfolio Segment | CRE - multifamily |  |  |  |
Loans receivable, net |  |  |  |
Loans | 658,278 | 619,794 |  |
Commercial Portfolio Segment | CRE - owner occupied |  |  |  |
Loans receivable, net |  |  |  |
Loans | 777,302 | 752,774 |  |
Commercial Portfolio Segment | CRE - non-owner occupied |  |  |  |
Loans receivable, net |  |  |  |
Loans | 1,750,038 | 1,711,198 |  |
Commercial Portfolio Segment | Commercial & industrial and other business loans |  |  |  |
Loans receivable, net |  |  |  |
Loans | 1,034,581 | 1,000,630 |  |
Commercial Portfolio Segment | Business lending |  |  |  |
Loans receivable, net |  |  |  |
Allowance for credit losses | (29,371) | (26,854) | $ (25,227) | $ (23,297)
Residential Portfolio Segment | Consumer mortgage |  |  |  |
Loans receivable, net |  |  |  |
Loans | 3,317,467 | 3,285,018 |  |
Allowance for credit losses | (14,490) | (15,333) | (14,278) | (14,343)
Residential Portfolio Segment | Home equity |  |  |  |
Loans receivable, net |  |  |  |
Allowance for credit losses | (1,581) | (1,628) | (1,588) | (1,594)
Consumer Portfolio Segment | Consumer indirect |  |  |  |
Loans receivable, net |  |  |  |
Loans | 1,716,028 | 1,703,440 |  |
Allowance for credit losses | (20,294) | (18,585) | (18,047) | (17,852)
Consumer Portfolio Segment | Consumer direct |  |  |  |
Loans receivable, net |  |  |  |
Loans | 183,750 | 185,229 |  |
Allowance for credit losses | (3,355) | (3,269) | (3,030) | (2,973)
Consumer Portfolio Segment | Home equity |  |  |  |
Loans receivable, net |  |  |  |
Loans | 446,056 | 446,515 |  |
Allowances For Credit Losses |  |  |  |
Loans receivable, net |  |  |  |
Allowance for credit losses | $ (70,091) | $ (66,669) | $ (63,170) | $ (61,059)

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