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LOANS AND CREDIT QUALITY - Aging Analysis (Details) - USD ($) $ in Thousands | Mar. 31, 2022 | Dec. 31, 2021
--- | --- | ---
Financing Receivable, Past Due [Line Items] |  |
Loans before allowance for credit loss | $ 5,864,490 | $ 5,542,849
Nonaccrual | 11,846 | 12,201
Total past due and nonaccrual | $ 24,415 | $ 21,020
Nonaccrual, percent of total loans | 0.20% | 0.22%
Past due and nonaccrual, percent of total loans | 0.42% | 0.38%
Percent of total loans | 100.00% | 100.00%
Federal Housing Administration, Veteran Affairs, Or Small Business Administration |  |
Financing Receivable, Past Due [Line Items] |  |
Total past due and nonaccrual | $ 11,000 | $ 8,400
Recurring |  |
Financing Receivable, Past Due [Line Items] |  |
Single family LHFI | 6,981 | 7,287
Level 3 | Recurring |  |
Financing Receivable, Past Due [Line Items] |  |
Single family LHFI | 6,981 | 7,287
30-59 days |  |
Financing Receivable, Past Due [Line Items] |  |
Loans before allowance for credit loss | $ 3,814 | $ 1,208
Past due, percent of total loans | 0.07% | 0.02%
60-89 days |  |
Financing Receivable, Past Due [Line Items] |  |
Loans before allowance for credit loss | $ 1,852 | $ 894
Past due, percent of total loans | 0.03% | 0.02%
90+ days |  |
Financing Receivable, Past Due [Line Items] |  |
Loans before allowance for credit loss | $ 6,903 | $ 6,717
Past due, percent of total loans | 0.12% | 0.12%
Current |  |
Financing Receivable, Past Due [Line Items] |  |
Loans before allowance for credit loss | $ 5,840,075 | $ 5,521,829
Not past due, percent of total loans | 99.58% | 99.62%
Commercial loans, adjusted for credit analysis | Real Estate Sector |  |
Financing Receivable, Past Due [Line Items] |  |
Loans before allowance for credit loss | $ 3,957,186 | $ 3,616,862
Nonaccrual | 0 | 0
Total past due and nonaccrual | 0 | 0
Commercial loans, adjusted for credit analysis | Real Estate Sector | 30-59 days |  |
Financing Receivable, Past Due [Line Items] |  |
Loans before allowance for credit loss | 0 | 0
Commercial loans, adjusted for credit analysis | Real Estate Sector | 60-89 days |  |
Financing Receivable, Past Due [Line Items] |  |
Loans before allowance for credit loss | 0 | 0
Commercial loans, adjusted for credit analysis | Real Estate Sector | 90+ days |  |
Financing Receivable, Past Due [Line Items] |  |
Loans before allowance for credit loss | 0 | 0
Commercial loans, adjusted for credit analysis | Real Estate Sector | Current |  |
Financing Receivable, Past Due [Line Items] |  |
Loans before allowance for credit loss | 3,957,186 | 3,616,862
Commercial loans, adjusted for credit analysis | Commercial and Industrial Sector |  |
Financing Receivable, Past Due [Line Items] |  |
Loans before allowance for credit loss | 852,294 | 859,578
Nonaccrual | 7,535 | 8,591
Total past due and nonaccrual | 7,535 | 8,789
Commercial loans, adjusted for credit analysis | Commercial and Industrial Sector | 30-59 days |  |
Financing Receivable, Past Due [Line Items] |  |
Loans before allowance for credit loss | 0 | 198
Commercial loans, adjusted for credit analysis | Commercial and Industrial Sector | 60-89 days |  |
Financing Receivable, Past Due [Line Items] |  |
Loans before allowance for credit loss | 0 | 0
Commercial loans, adjusted for credit analysis | Commercial and Industrial Sector | 90+ days |  |
Financing Receivable, Past Due [Line Items] |  |
Loans before allowance for credit loss | 0 | 0
Commercial loans, adjusted for credit analysis | Commercial and Industrial Sector | Current |  |
Financing Receivable, Past Due [Line Items] |  |
Loans before allowance for credit loss | 844,759 | 850,789
Commercial loans, adjusted for credit analysis | Non-owner occupied CRE |  |
Financing Receivable, Past Due [Line Items] |  |
Loans before allowance for credit loss | 699,277 | 705,359
Nonaccrual | 0 | 0
Total past due and nonaccrual | 0 | 0
Commercial loans, adjusted for credit analysis | Non-owner occupied CRE | 30-59 days |  |
Financing Receivable, Past Due [Line Items] |  |
Loans before allowance for credit loss | 0 | 0
Commercial loans, adjusted for credit analysis | Non-owner occupied CRE | 60-89 days |  |
Financing Receivable, Past Due [Line Items] |  |
Loans before allowance for credit loss | 0 | 0
Commercial loans, adjusted for credit analysis | Non-owner occupied CRE | 90+ days |  |
Financing Receivable, Past Due [Line Items] |  |
Loans before allowance for credit loss | 0 | 0
Commercial loans, adjusted for credit analysis | Non-owner occupied CRE | Current |  |
Financing Receivable, Past Due [Line Items] |  |
Loans before allowance for credit loss | 699,277 | 705,359
Commercial loans, adjusted for credit analysis | Multifamily |  |
Financing Receivable, Past Due [Line Items] |  |
Loans before allowance for credit loss | 2,729,775 | 2,415,359
Nonaccrual | 0 | 0
Total past due and nonaccrual | 0 | 0
Commercial loans, adjusted for credit analysis | Multifamily | 30-59 days |  |
Financing Receivable, Past Due [Line Items] |  |
Loans before allowance for credit loss | 0 | 0
Commercial loans, adjusted for credit analysis | Multifamily | 60-89 days |  |
Financing Receivable, Past Due [Line Items] |  |
Loans before allowance for credit loss | 0 | 0
Commercial loans, adjusted for credit analysis | Multifamily | 90+ days |  |
Financing Receivable, Past Due [Line Items] |  |
Loans before allowance for credit loss | 0 | 0
Commercial loans, adjusted for credit analysis | Multifamily | Current |  |
Financing Receivable, Past Due [Line Items] |  |
Loans before allowance for credit loss | 2,729,775 | 2,415,359
Commercial loans, adjusted for credit analysis | Multifamily construction |  |
Financing Receivable, Past Due [Line Items] |  |
Loans before allowance for credit loss | 36,827 | 37,861
Nonaccrual | 0 | 0
Total past due and nonaccrual | 0 | 0
Commercial loans, adjusted for credit analysis | Multifamily construction | 30-59 days |  |
Financing Receivable, Past Due [Line Items] |  |
Loans before allowance for credit loss | 0 | 0
Commercial loans, adjusted for credit analysis | Multifamily construction | 60-89 days |  |
Financing Receivable, Past Due [Line Items] |  |
Loans before allowance for credit loss | 0 | 0
Commercial loans, adjusted for credit analysis | Multifamily construction | 90+ days |  |
Financing Receivable, Past Due [Line Items] |  |
Loans before allowance for credit loss | 0 | 0
Commercial loans, adjusted for credit analysis | Multifamily construction | Current |  |
Financing Receivable, Past Due [Line Items] |  |
Loans before allowance for credit loss | 36,827 | 37,861
Commercial loans, adjusted for credit analysis | CRE construction |  |
Financing Receivable, Past Due [Line Items] |  |
Loans before allowance for credit loss | 18,099 | 14,172
Nonaccrual | 0 | 0
Total past due and nonaccrual | 0 | 0
Commercial loans, adjusted for credit analysis | CRE construction | 30-59 days |  |
Financing Receivable, Past Due [Line Items] |  |
Loans before allowance for credit loss | 0 | 0
Commercial loans, adjusted for credit analysis | CRE construction | 60-89 days |  |
Financing Receivable, Past Due [Line Items] |  |
Loans before allowance for credit loss | 0 | 0
Commercial loans, adjusted for credit analysis | CRE construction | 90+ days |  |
Financing Receivable, Past Due [Line Items] |  |
Loans before allowance for credit loss | 0 | 0
Commercial loans, adjusted for credit analysis | CRE construction | Current |  |
Financing Receivable, Past Due [Line Items] |  |
Loans before allowance for credit loss | 18,099 | 14,172
Commercial loans, adjusted for credit analysis | Single family construction |  |
Financing Receivable, Past Due [Line Items] |  |
Loans before allowance for credit loss | 318,800 | 296,027
Nonaccrual | 0 | 0
Total past due and nonaccrual | 0 | 0
Commercial loans, adjusted for credit analysis | Single family construction | 30-59 days |  |
Financing Receivable, Past Due [Line Items] |  |
Loans before allowance for credit loss | 0 | 0
Commercial loans, adjusted for credit analysis | Single family construction | 60-89 days |  |
Financing Receivable, Past Due [Line Items] |  |
Loans before allowance for credit loss | 0 | 0
Commercial loans, adjusted for credit analysis | Single family construction | 90+ days |  |
Financing Receivable, Past Due [Line Items] |  |
Loans before allowance for credit loss | 0 | 0
Commercial loans, adjusted for credit analysis | Single family construction | Current |  |
Financing Receivable, Past Due [Line Items] |  |
Loans before allowance for credit loss | 318,800 | 296,027
Commercial loans, adjusted for credit analysis | Single family construction to permanent |  |
Financing Receivable, Past Due [Line Items] |  |
Loans before allowance for credit loss | 154,408 | 148,084
Nonaccrual | 0 | 0
Total past due and nonaccrual | 0 | 0
Commercial loans, adjusted for credit analysis | Single family construction to permanent | 30-59 days |  |
Financing Receivable, Past Due [Line Items] |  |
Loans before allowance for credit loss | 0 | 0
Commercial loans, adjusted for credit analysis | Single family construction to permanent | 60-89 days |  |
Financing Receivable, Past Due [Line Items] |  |
Loans before allowance for credit loss | 0 | 0
Commercial loans, adjusted for credit analysis | Single family construction to permanent | 90+ days |  |
Financing Receivable, Past Due [Line Items] |  |
Loans before allowance for credit loss | 0 | 0
Commercial loans, adjusted for credit analysis | Single family construction to permanent | Current |  |
Financing Receivable, Past Due [Line Items] |  |
Loans before allowance for credit loss | 154,408 | 148,084
Commercial loans, adjusted for credit analysis | Owner occupied CRE |  |
Financing Receivable, Past Due [Line Items] |  |
Loans before allowance for credit loss | 464,356 | 457,706
Nonaccrual | 3,539 | 3,568
Total past due and nonaccrual | 3,539 | 3,568
Commercial loans, adjusted for credit analysis | Owner occupied CRE | 30-59 days |  |
Financing Receivable, Past Due [Line Items] |  |
Loans before allowance for credit loss | 0 | 0
Commercial loans, adjusted for credit analysis | Owner occupied CRE | 60-89 days |  |
Financing Receivable, Past Due [Line Items] |  |
Loans before allowance for credit loss | 0 | 0
Commercial loans, adjusted for credit analysis | Owner occupied CRE | 90+ days |  |
Financing Receivable, Past Due [Line Items] |  |
Loans before allowance for credit loss | 0 | 0
Commercial loans, adjusted for credit analysis | Owner occupied CRE | Current |  |
Financing Receivable, Past Due [Line Items] |  |
Loans before allowance for credit loss | 460,817 | 454,138
Commercial loans, adjusted for credit analysis | Commercial business |  |
Financing Receivable, Past Due [Line Items] |  |
Loans before allowance for credit loss | 387,938 | 401,872
Nonaccrual | 3,996 | 5,023
Total past due and nonaccrual | 3,996 | 5,221
Commercial loans, adjusted for credit analysis | Commercial business | 30-59 days |  |
Financing Receivable, Past Due [Line Items] |  |
Loans before allowance for credit loss | 0 | 198
Commercial loans, adjusted for credit analysis | Commercial business | 60-89 days |  |
Financing Receivable, Past Due [Line Items] |  |
Loans before allowance for credit loss | 0 | 0
Commercial loans, adjusted for credit analysis | Commercial business | 90+ days |  |
Financing Receivable, Past Due [Line Items] |  |
Loans before allowance for credit loss | 0 | 0
Commercial loans, adjusted for credit analysis | Commercial business | Current |  |
Financing Receivable, Past Due [Line Items] |  |
Loans before allowance for credit loss | 383,942 | 396,651
Consumer portfolio segment, adjusted for credit analysis |  |
Financing Receivable, Past Due [Line Items] |  |
Loans before allowance for credit loss | 1,055,010 | 1,066,409
Nonaccrual | 4,311 | 3,610
Total past due and nonaccrual | 16,880 | 12,231
Consumer portfolio segment, adjusted for credit analysis | 30-59 days |  |
Financing Receivable, Past Due [Line Items] |  |
Loans before allowance for credit loss | 3,814 | 1,010
Consumer portfolio segment, adjusted for credit analysis | 60-89 days |  |
Financing Receivable, Past Due [Line Items] |  |
Loans before allowance for credit loss | 1,852 | 894
Consumer portfolio segment, adjusted for credit analysis | 90+ days |  |
Financing Receivable, Past Due [Line Items] |  |
Loans before allowance for credit loss | 6,903 | 6,717
Consumer portfolio segment, adjusted for credit analysis | Current |  |
Financing Receivable, Past Due [Line Items] |  |
Loans before allowance for credit loss | 1,038,130 | 1,054,178
Consumer portfolio segment, adjusted for credit analysis | Single family |  |
Financing Receivable, Past Due [Line Items] |  |
Loans before allowance for credit loss | 759,286 | 763,331
Nonaccrual | 2,918 | 2,802
Total past due and nonaccrual | 15,395 | 11,231
Consumer portfolio segment, adjusted for credit analysis | Single family | 30-59 days |  |
Financing Receivable, Past Due [Line Items] |  |
Loans before allowance for credit loss | 3,753 | 892
Consumer portfolio segment, adjusted for credit analysis | Single family | 60-89 days |  |
Financing Receivable, Past Due [Line Items] |  |
Loans before allowance for credit loss | 1,821 | 820
Consumer portfolio segment, adjusted for credit analysis | Single family | 90+ days |  |
Financing Receivable, Past Due [Line Items] |  |
Loans before allowance for credit loss | 6,903 | 6,717
Consumer portfolio segment, adjusted for credit analysis | Single family | Current |  |
Financing Receivable, Past Due [Line Items] |  |
Loans before allowance for credit loss | 743,891 | 752,100
Consumer portfolio segment, adjusted for credit analysis | Home equity and other |  |
Financing Receivable, Past Due [Line Items] |  |
Loans before allowance for credit loss | 295,724 | 303,078
Nonaccrual | 1,393 | 808
Total past due and nonaccrual | 1,485 | 1,000
Consumer portfolio segment, adjusted for credit analysis | Home equity and other | 30-59 days |  |
Financing Receivable, Past Due [Line Items] |  |
Loans before allowance for credit loss | 61 | 118
Consumer portfolio segment, adjusted for credit analysis | Home equity and other | 60-89 days |  |
Financing Receivable, Past Due [Line Items] |  |
Loans before allowance for credit loss | 31 | 74
Consumer portfolio segment, adjusted for credit analysis | Home equity and other | 90+ days |  |
Financing Receivable, Past Due [Line Items] |  |
Loans before allowance for credit loss | 0 | 0
Consumer portfolio segment, adjusted for credit analysis | Home equity and other | Current |  |
Financing Receivable, Past Due [Line Items] |  |
Loans before allowance for credit loss | $ 294,239 | $ 302,078

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