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Loans and Leases Receivable and Allowance for Credit Losses on Loans and Leases - Performance Status (Details) - USD ($) $ in Thousands |  |  |  | 12 Months Ended
--- | --- | --- | --- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Jun. 15, 2023 | Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Loans and leases receivable | $ 13,127,634 | $ 11,963,855 |  | $ 13,127,634 | $ 11,963,855 |
Amount of loans accruing interest | $ 17,100 | 500 |  | $ 17,100 | 500 |
Threshold period past due | 30 days |  |  | 30 days |  |
Purchased-credit-impaired loans | $ 126,400 | 157,200 |  |  |  |
Purchases |  |  |  | $ 198,393 | 757,188 | $ 483,980
Total loans and leases | 13,104,883 | 11,889,120 |  | 13,104,883 | 11,889,120 |
Specialized lending | FDIC |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Purchases |  |  | $ 631,000 |  |  |
Amount at par value of financing receivable purchased with credit deterioration |  |  | $ 228,700 |  |  |
Total past due |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Total loans and leases | 114,729 | 93,956 |  | 114,729 | 93,956 |
30-59 Days past due |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Total loans and leases | 33,275 | 55,532 |  | 33,275 | 55,532 |
30-59 Days past due | Small Business Administration (SBA), CARES Act, Paycheck Protection Program |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Loans and leases receivable | 800 | 700 |  | 800 | 700 |
60-89 Days past due |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Total loans and leases | 29,677 | 14,600 |  | 29,677 | 14,600 |
90 Days or more past due |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Total loans and leases | 51,777 | 23,824 |  | 51,777 | 23,824 |
Loans and leases not past due |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Total loans and leases | 12,990,154 | 11,795,164 |  | 12,990,154 | 11,795,164 |
Greater than 60 Days past due | Small Business Administration (SBA), CARES Act, Paycheck Protection Program |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Loans and leases receivable | 16,100 |  |  | 16,100 |  |
Equal to or greater than 60 Days past due | Small Business Administration (SBA), CARES Act, Paycheck Protection Program |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Loans and leases receivable |  | 48,500 |  |  | 48,500 |
Commercial and industrial, including specialized lending |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Total loans and leases | 7,002,019 | 6,211,105 |  | 7,002,019 | 6,211,105 |
Commercial and industrial, including specialized lending | Total past due |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Total loans and leases | 27,115 | 5,991 |  | 27,115 | 5,991 |
Commercial and industrial, including specialized lending | 30-59 Days past due |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Total loans and leases | 3,655 | 1,516 |  | 3,655 | 1,516 |
Commercial and industrial, including specialized lending | 60-89 Days past due |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Total loans and leases | 19,854 | 322 |  | 19,854 | 322 |
Commercial and industrial, including specialized lending | 90 Days or more past due |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Total loans and leases | 3,606 | 4,153 |  | 3,606 | 4,153 |
Commercial and industrial, including specialized lending | Loans and leases not past due |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Total loans and leases | 6,974,904 | 6,205,114 |  | 6,974,904 | 6,205,114 |
Multifamily |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Total loans and leases | 2,252,246 | 2,138,622 |  | 2,252,246 | 2,138,622 |
Multifamily | Total past due |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Total loans and leases | 11,834 | 16,003 |  | 11,834 | 16,003 |
Multifamily | 30-59 Days past due |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Total loans and leases | 0 | 16,003 |  | 0 | 16,003 |
Multifamily | 60-89 Days past due |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Total loans and leases | 0 | 0 |  | 0 | 0 |
Multifamily | 90 Days or more past due |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Total loans and leases | 11,834 | 0 |  | 11,834 | 0 |
Multifamily | Loans and leases not past due |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Total loans and leases | 2,240,412 | 2,122,619 |  | 2,240,412 | 2,122,619 |
Commercial real estate owner occupied |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Total loans and leases | 1,100,944 | 797,319 |  | 1,100,944 | 797,319 |
Commercial real estate owner occupied | Total past due |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Total loans and leases | 19,466 | 10,090 |  | 19,466 | 10,090 |
Commercial real estate owner occupied | 30-59 Days past due |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Total loans and leases | 11,395 | 449 |  | 11,395 | 449 |
Commercial real estate owner occupied | 60-89 Days past due |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Total loans and leases | 0 | 3,814 |  | 0 | 3,814 |
Commercial real estate owner occupied | 90 Days or more past due |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Total loans and leases | 8,071 | 5,827 |  | 8,071 | 5,827 |
Commercial real estate owner occupied | Loans and leases not past due |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Total loans and leases | 1,081,478 | 787,229 |  | 1,081,478 | 787,229 |
Commercial real estate non-owner occupied |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Total loans and leases | 1,359,130 | 1,177,650 |  | 1,359,130 | 1,177,650 |
Commercial real estate non-owner occupied | Total past due |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Total loans and leases | 17,007 | 16,653 |  | 17,007 | 16,653 |
Commercial real estate non-owner occupied | 30-59 Days past due |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Total loans and leases | 0 | 16,653 |  | 0 | 16,653 |
Commercial real estate non-owner occupied | 60-89 Days past due |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Total loans and leases | 0 | 0 |  | 0 | 0 |
Commercial real estate non-owner occupied | 90 Days or more past due |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Total loans and leases | 17,007 | 0 |  | 17,007 | 0 |
Commercial real estate non-owner occupied | Loans and leases not past due |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Total loans and leases | 1,342,123 | 1,160,997 |  | 1,342,123 | 1,160,997 |
Construction |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Total loans and leases | 147,209 | 166,393 |  | 147,209 | 166,393 |
Construction | Total past due |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Total loans and leases | 0 | 0 |  | 0 | 0 |
Construction | 30-59 Days past due |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Total loans and leases | 0 | 0 |  | 0 | 0 |
Construction | 60-89 Days past due |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Total loans and leases | 0 | 0 |  | 0 | 0 |
Construction | 90 Days or more past due |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Total loans and leases | 0 | 0 |  | 0 | 0 |
Construction | Loans and leases not past due |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Total loans and leases | 147,209 | 166,393 |  | 147,209 | 166,393 |
Residential real estate |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Purchases |  |  |  | 0 | 4,238 | $ 207,251
Total loans and leases | 496,559 | 484,435 |  | 496,559 | 484,435 |
Residential real estate | Total past due |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Total loans and leases | 17,485 | 16,523 |  | 17,485 | 16,523 |
Residential real estate | 30-59 Days past due |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Total loans and leases | 9,541 | 10,504 |  | 9,541 | 10,504 |
Residential real estate | 60-89 Days past due |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Total loans and leases | 4,560 | 2,255 |  | 4,560 | 2,255 |
Residential real estate | 90 Days or more past due |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Total loans and leases | 3,384 | 3,764 |  | 3,384 | 3,764 |
Residential real estate | Loans and leases not past due |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Total loans and leases | 479,074 | 467,912 |  | 479,074 | 467,912 |
Manufactured housing |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Total loans and leases | 33,123 | 38,670 |  | 33,123 | 38,670 |
Manufactured housing | Total past due |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Total loans and leases | 3,183 | 4,364 |  | 3,183 | 4,364 |
Manufactured housing | 30-59 Days past due |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Total loans and leases | 766 | 1,152 |  | 766 | 1,152 |
Manufactured housing | 60-89 Days past due |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Total loans and leases | 155 | 343 |  | 155 | 343 |
Manufactured housing | 90 Days or more past due |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Total loans and leases | 2,262 | 2,869 |  | 2,262 | 2,869 |
Manufactured housing | Loans and leases not past due |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Total loans and leases | 29,940 | 34,306 |  | 29,940 | 34,306 |
Personal installment |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Total loans and leases | 713,653 | 874,926 |  | 713,653 | 874,926 |
Personal installment | Total past due |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Total loans and leases | 18,639 | 24,332 |  | 18,639 | 24,332 |
Personal installment | 30-59 Days past due |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Total loans and leases | 7,918 | 9,255 |  | 7,918 | 9,255 |
Personal installment | 60-89 Days past due |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Total loans and leases | 5,108 | 7,866 |  | 5,108 | 7,866 |
Personal installment | 90 Days or more past due |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Total loans and leases | 5,613 | 7,211 |  | 5,613 | 7,211 |
Personal installment | Loans and leases not past due |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Total loans and leases | $ 695,014 | $ 850,594 |  | $ 695,014 | $ 850,594 |

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