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LOANS AND ALLOWANCE FOR CREDIT LOSSES - Allowance for Loan Losses and Recorded Investment Excluding Accrued Interest in Loans (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Allowance for Loan and Lease Losses [Roll Forward] |  |  |
Balance at beginning of year | $ 92,584 |  |
Provision for (reversal of) credit losses | (31,542) | $ 6,854 | $ 29,719
Balance at end of year | 85,960 | 92,584 |
Commercial real estate |  |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |  |
Balance at beginning of year | 98,189 | 84,213 | 61,713
Initial allowance for credit losses purchased in acquisition | 0 | 13,650 | 0
Charge-offs | (9,278) | (9,886) | (15,417)
Recoveries | 33,896 | 3,358 | 1,815
Net recoveries (charge-offs) | 24,618 | (6,528) | (13,602)
Provision for (reversal of) credit losses | (31,542) | 6,854 | 29,719
Balance at end of year | 91,265 | 98,189 | 84,213
Commercial real estate | Cumulative Effect, Period of Adoption, Adjustment |  |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |  |
Balance at beginning of year | 0 | 0 | 6,383
Balance at end of year |  | 0 | 0
Allowance for Loan Losses |  |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |  |
Balance at beginning of year | 92,584 | 81,030 |
Initial allowance for credit losses purchased in acquisition |  | 13,650 |
Charge-offs | (9,278) | (9,886) |
Recoveries | 33,896 | 3,358 |
Net recoveries (charge-offs) | 24,618 | (6,528) |
Provision for (reversal of) credit losses | (31,242) | 4,432 |
Balance at end of year | 85,960 | 92,584 | 81,030
Allowance for Loan Losses | Commercial real estate |  |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |  |
Balance at beginning of year | 92,584 | 81,030 | 57,649
Initial allowance for credit losses purchased in acquisition | 0 | 13,650 | 0
Charge-offs | (9,278) | (9,886) | (15,417)
Recoveries | 33,896 | 3,358 | 1,815
Net recoveries (charge-offs) | 24,618 | (6,528) | (13,602)
Provision for (reversal of) credit losses | (31,242) | 4,432 | 29,374
Balance at end of year | 85,960 | 92,584 | 81,030
Allowance for Loan Losses | Commercial real estate | Cumulative Effect, Period of Adoption, Adjustment |  |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |  |
Balance at beginning of year | 0 | 0 | 7,609
Balance at end of year |  | 0 | 0
Allowance for Loan Losses | Commercial | Commercial and industrial |  |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |  |
Balance at beginning of year | 33,557 | 20,608 |
Initial allowance for credit losses purchased in acquisition |  | 11,933 |
Charge-offs | (8,597) | (6,209) |
Recoveries | 32,887 | 3,150 |
Net recoveries (charge-offs) | 24,290 | (3,059) |
Provision for (reversal of) credit losses | (23,691) | 4,075 |
Balance at end of year | 34,156 | 33,557 | 20,608
Allowance for Loan Losses | Commercial | Commercial real estate |  |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |  |
Balance at beginning of year | 21,727 | 19,074 |
Initial allowance for credit losses purchased in acquisition |  | 614 |
Charge-offs | 0 | (576) |
Recoveries | 7 | 0 |
Net recoveries (charge-offs) | 7 | (576) |
Provision for (reversal of) credit losses | (5,757) | 2,615 |
Balance at end of year | 15,977 | 21,727 | 19,074
Allowance for Loan Losses | Commercial | Multifamily |  |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |  |
Balance at beginning of year | 17,893 | 22,512 |
Initial allowance for credit losses purchased in acquisition |  | 469 |
Charge-offs | 0 | 0 |
Recoveries | 0 | 0 |
Net recoveries (charge-offs) | 0 | 0 |
Provision for (reversal of) credit losses | (3,197) | (5,088) |
Balance at end of year | 14,696 | 17,893 | 22,512
Allowance for Loan Losses | Commercial | SBA |  |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |  |
Balance at beginning of year | 3,017 | 3,145 |
Initial allowance for credit losses purchased in acquisition |  | 575 |
Charge-offs | (428) | (2,780) |
Recoveries | 791 | 132 |
Net recoveries (charge-offs) | 363 | (2,648) |
Provision for (reversal of) credit losses | (732) | 1,945 |
Balance at end of year | 2,648 | 3,017 | 3,145
Allowance for Loan Losses | Commercial | Construction |  |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |  |
Balance at beginning of year | 5,622 | 5,849 |
Initial allowance for credit losses purchased in acquisition |  | 28 |
Charge-offs | 0 | 0 |
Recoveries | 0 | 0 |
Net recoveries (charge-offs) | 0 | 0 |
Provision for (reversal of) credit losses | 228 | (255) |
Balance at end of year | 5,850 | 5,622 | 5,849
Allowance for Loan Losses | Consumer: | Single Family Residential Mortgage |  |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |  |
Balance at beginning of year | 9,608 | 9,191 |
Initial allowance for credit losses purchased in acquisition |  | 0 |
Charge-offs | (10) | (321) |
Recoveries | 193 | 74 |
Net recoveries (charge-offs) | 183 | (247) |
Provision for (reversal of) credit losses | 2,259 | 664 |
Balance at end of year | 12,050 | 9,608 | 9,191
Allowance for Loan Losses | Consumer: | Other Consumer |  |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |  |
Balance at beginning of year | 1,160 | 651 |
Initial allowance for credit losses purchased in acquisition |  | 31 |
Charge-offs | (243) | 0 |
Recoveries | 18 | 2 |
Net recoveries (charge-offs) | (225) | 2 |
Provision for (reversal of) credit losses | (352) | 476 |
Balance at end of year | 583 | 1,160 | 651
Reserve for Unfunded Non-Cancellable Loan Commit-ments | Commercial real estate |  |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |  |
Balance at beginning of year | 5,605 | 3,183 | 4,064
Initial allowance for credit losses purchased in acquisition | 0 | 0 | 0
Charge-offs | 0 | 0 | 0
Recoveries | 0 | 0 | 0
Net recoveries (charge-offs) | 0 | 0 | 0
Provision for (reversal of) credit losses | (300) | 2,422 | 345
Balance at end of year | 5,305 | 5,605 | 3,183
Reserve for Unfunded Non-Cancellable Loan Commit-ments | Commercial real estate | Cumulative Effect, Period of Adoption, Adjustment |  |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |  |
Balance at beginning of year | $ 0 | 0 | (1,226)
Balance at end of year |  | $ 0 | $ 0

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