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LOANS AND CREDIT QUALITY - Loans Credit Quality by Year and Type (Details) - USD ($) $ in Thousands | Jun. 30, 2024 | Dec. 31, 2023
--- | --- | ---
Financing Receivable, before Allowance for Credit Loss [Abstract] |  |
Financing receivable, year one | $ 110,273 | $ 273,487
Financing receivable, year two | 269,402 | 2,520,561
Financing receivable, year three | 2,482,584 | 1,781,268
Financing receivable, year four | 1,755,439 | 767,209
Financing receivable, year five | 752,838 | 465,962
Financing receivable, prior to year five | 1,318,615 | 924,665
Revolving | 684,733 | 681,941
Revolving-term | 6,166 | 7,811
Total | 7,380,050 | 7,422,904
Recurring |  |
Financing Receivable, before Allowance for Credit Loss [Abstract] |  |
Single family LHFI | 1,286 | 1,280
Level 3 | Recurring |  |
Financing Receivable, before Allowance for Credit Loss [Abstract] |  |
Single family LHFI | 1,286 | 1,280
30-59 days |  |
Financing Receivable, before Allowance for Credit Loss [Abstract] |  |
Total | 3,824 | 6,148
60-89 days |  |
Financing Receivable, before Allowance for Credit Loss [Abstract] |  |
Total | 2,691 | 4,133
90+ days |  |
Financing Receivable, before Allowance for Credit Loss [Abstract] |  |
Total | 5,459 | 4,261
Commercial loans |  |
Financing Receivable, before Allowance for Credit Loss [Abstract] |  |
Financing receivable, year one | 108,650 | 244,302
Financing receivable, year two | 228,508 | 2,163,372
Financing receivable, year three | 2,102,525 | 1,467,091
Financing receivable, year four | 1,440,584 | 619,905
Financing receivable, year five | 611,241 | 416,790
Financing receivable, prior to year five | 1,039,090 | 674,608
Revolving | 295,917 | 310,096
Revolving-term | 1,188 | 2,160
Total | 5,827,703 | 5,898,324
Commercial loans | Non-owner occupied CRE |  |
Financing Receivable, before Allowance for Credit Loss [Abstract] |  |
Financing receivable, year one | 0 | 1,499
Financing receivable, year two | 1,471 | 70,388
Financing receivable, year three | 70,220 | 71,217
Financing receivable, year four | 71,824 | 41,235
Financing receivable, year five | 40,563 | 135,816
Financing receivable, prior to year five | 428,252 | 320,556
Revolving | 607 | 1,174
Revolving-term | 0 | 0
Total | 612,937 | 641,885
Commercial loans | Non-owner occupied CRE | Pass |  |
Financing Receivable, before Allowance for Credit Loss [Abstract] |  |
Financing receivable, year one | 0 | 1,499
Financing receivable, year two | 1,471 | 70,388
Financing receivable, year three | 70,220 | 71,217
Financing receivable, year four | 71,824 | 41,235
Financing receivable, year five | 40,563 | 118,900
Financing receivable, prior to year five | 382,326 | 286,379
Revolving | 607 | 601
Revolving-term | 0 | 0
Total | 567,011 | 590,219
Commercial loans | Non-owner occupied CRE | Special Mention |  |
Financing Receivable, before Allowance for Credit Loss [Abstract] |  |
Financing receivable, year one | 0 | 0
Financing receivable, year two | 0 | 0
Financing receivable, year three | 0 | 0
Financing receivable, year four | 0 | 0
Financing receivable, year five | 0 | 686
Financing receivable, prior to year five | 29,508 | 34,177
Revolving | 0 | 0
Revolving-term | 0 | 0
Total | 29,508 | 34,863
Commercial loans | Non-owner occupied CRE | Substandard |  |
Financing Receivable, before Allowance for Credit Loss [Abstract] |  |
Financing receivable, year one | 0 | 0
Financing receivable, year two | 0 | 0
Financing receivable, year three | 0 | 0
Financing receivable, year four | 0 | 0
Financing receivable, year five | 0 | 16,230
Financing receivable, prior to year five | 16,418 | 0
Revolving | 0 | 573
Revolving-term | 0 | 0
Total | 16,418 | 16,803
Commercial loans | Multifamily |  |
Financing Receivable, before Allowance for Credit Loss [Abstract] |  |
Financing receivable, year one | 1,736 | 108,274
Financing receivable, year two | 106,487 | 1,813,647
Financing receivable, year three | 1,807,719 | 1,155,619
Financing receivable, year four | 1,168,918 | 488,595
Financing receivable, year five | 484,035 | 191,935
Financing receivable, prior to year five | 366,263 | 182,119
Revolving | 0 | 0
Revolving-term | 0 | 0
Total | 3,935,158 | 3,940,189
Commercial loans | Multifamily | Pass |  |
Financing Receivable, before Allowance for Credit Loss [Abstract] |  |
Financing receivable, year one | 1,736 | 108,274
Financing receivable, year two | 106,487 | 1,813,647
Financing receivable, year three | 1,733,374 | 1,151,677
Financing receivable, year four | 1,164,983 | 475,708
Financing receivable, year five | 459,782 | 189,567
Financing receivable, prior to year five | 348,952 | 177,712
Revolving | 0 | 0
Revolving-term | 0 | 0
Total | 3,815,314 | 3,916,585
Commercial loans | Multifamily | Special Mention |  |
Financing Receivable, before Allowance for Credit Loss [Abstract] |  |
Financing receivable, year one | 0 | 0
Financing receivable, year two | 0 | 0
Financing receivable, year three | 74,345 | 3,942
Financing receivable, year four | 3,935 | 12,887
Financing receivable, year five | 24,253 | 2,368
Financing receivable, prior to year five | 11,046 | 1,344
Revolving | 0 | 0
Revolving-term | 0 | 0
Total | 113,579 | 20,541
Commercial loans | Multifamily | Substandard |  |
Financing Receivable, before Allowance for Credit Loss [Abstract] |  |
Financing receivable, year one | 0 | 0
Financing receivable, year two | 0 | 0
Financing receivable, year three | 0 | 0
Financing receivable, year four | 0 | 0
Financing receivable, year five | 0 | 0
Financing receivable, prior to year five | 6,265 | 3,063
Revolving | 0 | 0
Revolving-term | 0 | 0
Total | 6,265 | 3,063
Commercial loans | Multifamily construction |  |
Financing Receivable, before Allowance for Credit Loss [Abstract] |  |
Financing receivable, year one | 0 | (198)
Financing receivable, year two | 20,284 | 56,013
Financing receivable, year three | 61,854 | 112,234
Financing receivable, year four | 109,041 | 0
Financing receivable, year five | 0 | 0
Financing receivable, prior to year five | 0 | 0
Revolving | 0 | 0
Revolving-term | 0 | 0
Total | 191,179 | 168,049
Commercial loans | Multifamily construction | Pass |  |
Financing Receivable, before Allowance for Credit Loss [Abstract] |  |
Financing receivable, year one | 0 | (198)
Financing receivable, year two | 20,284 | 56,013
Financing receivable, year three | 61,854 | 112,234
Financing receivable, year four | 109,041 | 0
Financing receivable, year five | 0 | 0
Financing receivable, prior to year five | 0 | 0
Revolving | 0 | 0
Revolving-term | 0 | 0
Total | 191,179 | 168,049
Commercial loans | Multifamily construction | Special Mention |  |
Financing Receivable, before Allowance for Credit Loss [Abstract] |  |
Financing receivable, year one | 0 | 0
Financing receivable, year two | 0 | 0
Financing receivable, year three | 0 | 0
Financing receivable, year four | 0 | 0
Financing receivable, year five | 0 | 0
Financing receivable, prior to year five | 0 | 0
Revolving | 0 | 0
Revolving-term | 0 | 0
Total | 0 | 0
Commercial loans | Multifamily construction | Substandard |  |
Financing Receivable, before Allowance for Credit Loss [Abstract] |  |
Financing receivable, year one | 0 | 0
Financing receivable, year two | 0 | 0
Financing receivable, year three | 0 | 0
Financing receivable, year four | 0 | 0
Financing receivable, year five | 0 | 0
Financing receivable, prior to year five | 0 | 0
Revolving | 0 | 0
Revolving-term | 0 | 0
Total | 0 | 0
Commercial loans | CRE construction |  |
Financing Receivable, before Allowance for Credit Loss [Abstract] |  |
Financing receivable, year one | 0 | 7
Financing receivable, year two | 2,790 | 0
Financing receivable, year three | 0 | 14,685
Financing receivable, year four | 0 | 3,821
Financing receivable, year five | 3,821 | 0
Financing receivable, prior to year five | 0 | 0
Revolving | 0 | 0
Revolving-term | 0 | 0
Total | 6,611 | 18,513
Commercial loans | CRE construction | Pass |  |
Financing Receivable, before Allowance for Credit Loss [Abstract] |  |
Financing receivable, year one | 0 | 7
Financing receivable, year two | 2,790 | 0
Financing receivable, year three | 0 | 14,685
Financing receivable, year four | 0 | 0
Financing receivable, year five | 0 | 0
Financing receivable, prior to year five | 0 | 0
Revolving | 0 | 0
Revolving-term | 0 | 0
Total | 2,790 | 14,692
Commercial loans | CRE construction | Special Mention |  |
Financing Receivable, before Allowance for Credit Loss [Abstract] |  |
Financing receivable, year one | 0 | 0
Financing receivable, year two | 0 | 0
Financing receivable, year three | 0 | 0
Financing receivable, year four | 0 | 0
Financing receivable, year five | 0 | 0
Financing receivable, prior to year five | 0 | 0
Revolving | 0 | 0
Revolving-term | 0 | 0
Total | 0 | 0
Commercial loans | CRE construction | Substandard |  |
Financing Receivable, before Allowance for Credit Loss [Abstract] |  |
Financing receivable, year one | 0 | 0
Financing receivable, year two | 0 | 0
Financing receivable, year three | 0 | 0
Financing receivable, year four | 0 | 3,821
Financing receivable, year five | 3,821 | 0
Financing receivable, prior to year five | 0 | 0
Revolving | 0 | 0
Revolving-term | 0 | 0
Total | 3,821 | 3,821
Commercial loans | Single family construction |  |
Financing Receivable, before Allowance for Credit Loss [Abstract] |  |
Financing receivable, year one | 63,668 | 75,305
Financing receivable, year two | 45,726 | 39,621
Financing receivable, year three | 15,814 | 12,294
Financing receivable, year four | 11,119 | 0
Financing receivable, year five | 0 | 0
Financing receivable, prior to year five | 70 | 72
Revolving | 132,224 | 146,758
Revolving-term | 0 | 0
Total | 268,621 | 274,050
Commercial loans | Single family construction | Pass |  |
Financing Receivable, before Allowance for Credit Loss [Abstract] |  |
Financing receivable, year one | 63,668 | 75,305
Financing receivable, year two | 45,726 | 39,621
Financing receivable, year three | 15,814 | 12,294
Financing receivable, year four | 11,119 | 0
Financing receivable, year five | 0 | 0
Financing receivable, prior to year five | 70 | 72
Revolving | 132,224 | 146,758
Revolving-term | 0 | 0
Total | 268,621 | 274,050
Commercial loans | Single family construction | Special Mention |  |
Financing Receivable, before Allowance for Credit Loss [Abstract] |  |
Financing receivable, year one | 0 | 0
Financing receivable, year two | 0 | 0
Financing receivable, year three | 0 | 0
Financing receivable, year four | 0 | 0
Financing receivable, year five | 0 | 0
Financing receivable, prior to year five | 0 | 0
Revolving | 0 | 0
Revolving-term | 0 | 0
Total | 0 | 0
Commercial loans | Single family construction | Substandard |  |
Financing Receivable, before Allowance for Credit Loss [Abstract] |  |
Financing receivable, year one | 0 | 0
Financing receivable, year two | 0 | 0
Financing receivable, year three | 0 | 0
Financing receivable, year four | 0 | 0
Financing receivable, year five | 0 | 0
Financing receivable, prior to year five | 0 | 0
Revolving | 0 | 0
Revolving-term | 0 | 0
Total | 0 | 0
Commercial loans | Single family construction to permanent |  |
Financing Receivable, before Allowance for Credit Loss [Abstract] |  |
Financing receivable, year one | 2,784 | 27,114
Financing receivable, year two | 22,405 | 56,469
Financing receivable, year three | 28,862 | 19,871
Financing receivable, year four | 8,393 | 1,850
Financing receivable, year five | 1,590 | 0
Financing receivable, prior to year five | 0 | 0
Revolving | 0 | 0
Revolving-term | 0 | 0
Total | 64,034 | 105,304
Commercial loans | Single family construction to permanent | Current |  |
Financing Receivable, before Allowance for Credit Loss [Abstract] |  |
Financing receivable, year one | 2,784 | 27,114
Financing receivable, year two | 22,405 | 56,469
Financing receivable, year three | 28,862 | 19,871
Financing receivable, year four | 8,393 | 1,850
Financing receivable, year five | 1,590 | 0
Financing receivable, prior to year five | 0 | 0
Revolving | 0 | 0
Revolving-term | 0 | 0
Total | 64,034 | 105,304
Commercial loans | Single family construction to permanent | 30-59 days |  |
Financing Receivable, before Allowance for Credit Loss [Abstract] |  |
Financing receivable, year one | 0 | 0
Financing receivable, year two | 0 | 0
Financing receivable, year three | 0 | 0
Financing receivable, year four | 0 | 0
Financing receivable, year five | 0 | 0
Financing receivable, prior to year five | 0 | 0
Revolving | 0 | 0
Revolving-term | 0 | 0
Total | 0 | 0
Commercial loans | Single family construction to permanent | 60-89 days |  |
Financing Receivable, before Allowance for Credit Loss [Abstract] |  |
Financing receivable, year one | 0 | 0
Financing receivable, year two | 0 | 0
Financing receivable, year three | 0 | 0
Financing receivable, year four | 0 | 0
Financing receivable, year five | 0 | 0
Financing receivable, prior to year five | 0 | 0
Revolving | 0 | 0
Revolving-term | 0 | 0
Total | 0 | 0
Commercial loans | Single family construction to permanent | 90+ days |  |
Financing Receivable, before Allowance for Credit Loss [Abstract] |  |
Financing receivable, year one | 0 | 0
Financing receivable, year two | 0 | 0
Financing receivable, year three | 0 | 0
Financing receivable, year four | 0 | 0
Financing receivable, year five | 0 | 0
Financing receivable, prior to year five | 0 | 0
Revolving | 0 | 0
Revolving-term | 0 | 0
Total | 0 | 0
Commercial loans | Owner occupied CRE |  |
Financing Receivable, before Allowance for Credit Loss [Abstract] |  |
Financing receivable, year one | 1,438 | 14,331
Financing receivable, year two | 12,661 | 69,877
Financing receivable, year three | 67,116 | 48,919
Financing receivable, year four | 45,078 | 43,399
Financing receivable, year five | 42,677 | 68,601
Financing receivable, prior to year five | 203,340 | 145,034
Revolving | 5 | 2
Revolving-term | 137 | 1,122
Total | 372,452 | 391,285
Commercial loans | Owner occupied CRE | Pass |  |
Financing Receivable, before Allowance for Credit Loss [Abstract] |  |
Financing receivable, year one | 1,438 | 12,459
Financing receivable, year two | 10,830 | 68,399
Financing receivable, year three | 60,914 | 39,629
Financing receivable, year four | 37,059 | 43,399
Financing receivable, year five | 42,677 | 65,392
Financing receivable, prior to year five | 172,188 | 111,199
Revolving | 5 | 2
Revolving-term | 137 | 1,122
Total | 325,248 | 341,601
Commercial loans | Owner occupied CRE | Special Mention |  |
Financing Receivable, before Allowance for Credit Loss [Abstract] |  |
Financing receivable, year one | 0 | 1,871
Financing receivable, year two | 1,831 | 1,478
Financing receivable, year three | 6,202 | 9,290
Financing receivable, year four | 8,019 | 0
Financing receivable, year five | 0 | 2,956
Financing receivable, prior to year five | 28,029 | 28,784
Revolving | 0 | 0
Revolving-term | 0 | 0
Total | 44,081 | 44,379
Commercial loans | Owner occupied CRE | Substandard |  |
Financing Receivable, before Allowance for Credit Loss [Abstract] |  |
Financing receivable, year one | 0 | 1
Financing receivable, year two | 0 | 0
Financing receivable, year three | 0 | 0
Financing receivable, year four | 0 | 0
Financing receivable, year five | 0 | 253
Financing receivable, prior to year five | 3,123 | 5,051
Revolving | 0 | 0
Revolving-term | 0 | 0
Total | 3,123 | 5,305
Commercial loans | Commercial business |  |
Financing Receivable, before Allowance for Credit Loss [Abstract] |  |
Financing receivable, year one | 39,024 | 17,970
Financing receivable, year two | 16,684 | 57,357
Financing receivable, year three | 50,940 | 32,252
Financing receivable, year four | 26,211 | 41,005
Financing receivable, year five | 38,555 | 20,438
Financing receivable, prior to year five | 41,165 | 26,827
Revolving | 163,081 | 162,162
Revolving-term | 1,051 | 1,038
Total | 376,711 | 359,049
Commercial loans | Commercial business | Pass |  |
Financing Receivable, before Allowance for Credit Loss [Abstract] |  |
Financing receivable, year one | 39,024 | 17,970
Financing receivable, year two | 16,245 | 45,892
Financing receivable, year three | 39,856 | 27,227
Financing receivable, year four | 22,461 | 33,404
Financing receivable, year five | 31,225 | 16,198
Financing receivable, prior to year five | 36,168 | 24,903
Revolving | 158,855 | 157,656
Revolving-term | 1,006 | 973
Total | 344,840 | 324,223
Commercial loans | Commercial business | Special Mention |  |
Financing Receivable, before Allowance for Credit Loss [Abstract] |  |
Financing receivable, year one | 0 | 0
Financing receivable, year two | 0 | 11,465
Financing receivable, year three | 10,815 | 2,891
Financing receivable, year four | 3,251 | 0
Financing receivable, year five | 0 | 452
Financing receivable, prior to year five | 302 | 38
Revolving | 2,731 | 3,485
Revolving-term | 0 | 0
Total | 17,099 | 18,331
Commercial loans | Commercial business | Substandard |  |
Financing Receivable, before Allowance for Credit Loss [Abstract] |  |
Financing receivable, year one | 0 | 0
Financing receivable, year two | 439 | 0
Financing receivable, year three | 269 | 2,134
Financing receivable, year four | 499 | 7,601
Financing receivable, year five | 7,330 | 3,788
Financing receivable, prior to year five | 4,695 | 1,886
Revolving | 1,495 | 1,021
Revolving-term | 45 | 65
Total | 14,772 | 16,495
Consumer loans |  |
Financing Receivable, before Allowance for Credit Loss [Abstract] |  |
Financing receivable, year one | 1,623 | 29,185
Financing receivable, year two | 40,894 | 357,189
Financing receivable, year three | 380,059 | 314,177
Financing receivable, year four | 314,855 | 147,304
Financing receivable, year five | 141,597 | 49,172
Financing receivable, prior to year five | 279,525 | 250,057
Revolving | 388,816 | 371,845
Revolving-term | 4,978 | 5,651
Total | 1,552,347 | 1,524,580
Consumer loans | Single family |  |
Financing Receivable, before Allowance for Credit Loss [Abstract] |  |
Financing receivable, year one | 516 | 27,011
Financing receivable, year two | 39,381 | 354,691
Financing receivable, year three | 377,987 | 313,866
Financing receivable, year four | 314,657 | 147,183
Financing receivable, year five | 141,490 | 49,126
Financing receivable, prior to year five | 277,973 | 248,402
Revolving | 0 | 0
Revolving-term | 0 | 0
Total | 1,152,004 | 1,140,279
Consumer loans | Single family | Current |  |
Financing Receivable, before Allowance for Credit Loss [Abstract] |  |
Financing receivable, year one | 516 | 27,011
Financing receivable, year two | 39,381 | 354,691
Financing receivable, year three | 377,987 | 313,866
Financing receivable, year four | 314,657 | 147,183
Financing receivable, year five | 141,490 | 49,126
Financing receivable, prior to year five | 276,411 | 245,574
Revolving | 0 | 0
Revolving-term | 0 | 0
Total | 1,150,442 | 1,137,451
Consumer loans | Single family | 30-59 days |  |
Financing Receivable, before Allowance for Credit Loss [Abstract] |  |
Financing receivable, year one | 0 | 0
Financing receivable, year two | 0 | 0
Financing receivable, year three | 0 | 0
Financing receivable, year four | 0 | 0
Financing receivable, year five | 0 | 0
Financing receivable, prior to year five | 1,030 | 781
Revolving | 0 | 0
Revolving-term | 0 | 0
Total | 1,030 | 781
Consumer loans | Single family | 60-89 days |  |
Financing Receivable, before Allowance for Credit Loss [Abstract] |  |
Financing receivable, year one | 0 | 0
Financing receivable, year two | 0 | 0
Financing receivable, year three | 0 | 0
Financing receivable, year four | 0 | 0
Financing receivable, year five | 0 | 0
Financing receivable, prior to year five | 0 | 1,374
Revolving | 0 | 0
Revolving-term | 0 | 0
Total | 0 | 1,374
Consumer loans | Single family | 90+ days |  |
Financing Receivable, before Allowance for Credit Loss [Abstract] |  |
Financing receivable, year one | 0 | 0
Financing receivable, year two | 0 | 0
Financing receivable, year three | 0 | 0
Financing receivable, year four | 0 | 0
Financing receivable, year five | 0 | 0
Financing receivable, prior to year five | 532 | 673
Revolving | 0 | 0
Revolving-term | 0 | 0
Total | 532 | 673
Consumer loans | Home equity and other |  |
Financing Receivable, before Allowance for Credit Loss [Abstract] |  |
Financing receivable, year one | 1,107 | 2,174
Financing receivable, year two | 1,513 | 2,498
Financing receivable, year three | 2,072 | 311
Financing receivable, year four | 198 | 121
Financing receivable, year five | 107 | 46
Financing receivable, prior to year five | 1,552 | 1,655
Revolving | 388,816 | 371,845
Revolving-term | 4,978 | 5,651
Total | 400,343 | 384,301
Consumer loans | Home equity and other | Current |  |
Financing Receivable, before Allowance for Credit Loss [Abstract] |  |
Financing receivable, year one | 1,107 | 2,165
Financing receivable, year two | 1,502 | 2,493
Financing receivable, year three | 2,064 | 311
Financing receivable, year four | 197 | 121
Financing receivable, year five | 107 | 46
Financing receivable, prior to year five | 1,528 | 1,631
Revolving | 386,895 | 370,462
Revolving-term | 4,761 | 5,483
Total | 398,161 | 382,712
Consumer loans | Home equity and other | 30-59 days |  |
Financing Receivable, before Allowance for Credit Loss [Abstract] |  |
Financing receivable, year one | 0 | 8
Financing receivable, year two | 2 | 2
Financing receivable, year three | 5 | 0
Financing receivable, year four | 1 | 0
Financing receivable, year five | 0 | 0
Financing receivable, prior to year five | 0 | 0
Revolving | 531 | 802
Revolving-term | 151 | 162
Total | 690 | 974
Consumer loans | Home equity and other | 60-89 days |  |
Financing Receivable, before Allowance for Credit Loss [Abstract] |  |
Financing receivable, year one | 0 | 1
Financing receivable, year two | 9 | 3
Financing receivable, year three | 2 | 0
Financing receivable, year four | 0 | 0
Financing receivable, year five | 0 | 0
Financing receivable, prior to year five | 0 | 0
Revolving | 681 | 419
Revolving-term | 5 | 0
Total | 697 | 423
Consumer loans | Home equity and other | 90+ days |  |
Financing Receivable, before Allowance for Credit Loss [Abstract] |  |
Financing receivable, year one | 0 | 0
Financing receivable, year two | 0 | 0
Financing receivable, year three | 1 | 0
Financing receivable, year four | 0 | 0
Financing receivable, year five | 0 | 0
Financing receivable, prior to year five | 24 | 24
Revolving | 709 | 162
Revolving-term | 61 | 6
Total | $ 795 | $ 192

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