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LOANS AND CREDIT QUALITY - Loans Credit Quality by Year and Type (Details) - USD ($) $ in Thousands | Sep. 30, 2024 | Dec. 31, 2023
--- | --- | ---
Financing Receivable, before Allowance for Credit Loss [Abstract] |  |
Financing receivable, year one | $ 140,246 | $ 273,487
Financing receivable, year two | 257,293 | 2,520,561
Financing receivable, year three | 2,471,182 | 1,781,268
Financing receivable, year four | 1,736,325 | 767,209
Financing receivable, year five | 735,455 | 465,962
Financing receivable, prior to year five | 1,272,065 | 924,665
Revolving | 715,040 | 681,941
Revolving-term | 5,648 | 7,811
Total | 7,333,254 | 7,422,904
Recurring |  |
Financing Receivable, before Allowance for Credit Loss [Abstract] |  |
Single family LHFI | 1,329 | 1,280
Level 3 | Recurring |  |
Financing Receivable, before Allowance for Credit Loss [Abstract] |  |
Single family LHFI | 1,329 | 1,280
30-59 days |  |
Financing Receivable, before Allowance for Credit Loss [Abstract] |  |
Total | 3,719 | 6,148
60-89 days |  |
Financing Receivable, before Allowance for Credit Loss [Abstract] |  |
Total | 1,867 | 4,133
90+ days |  |
Financing Receivable, before Allowance for Credit Loss [Abstract] |  |
Total | 4,967 | 4,261
Commercial loans |  |
Financing Receivable, before Allowance for Credit Loss [Abstract] |  |
Financing receivable, year one | 138,936 | 244,302
Financing receivable, year two | 218,639 | 2,163,372
Financing receivable, year three | 2,087,186 | 1,467,091
Financing receivable, year four | 1,427,473 | 619,905
Financing receivable, year five | 594,036 | 416,790
Financing receivable, prior to year five | 1,002,491 | 674,608
Revolving | 318,919 | 310,096
Revolving-term | 955 | 2,160
Total | 5,788,635 | 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 | 1,456 | 70,388
Financing receivable, year three | 70,175 | 71,217
Financing receivable, year four | 71,686 | 41,235
Financing receivable, year five | 40,226 | 135,816
Financing receivable, prior to year five | 406,803 | 320,556
Revolving | 610 | 1,174
Revolving-term | 0 | 0
Total | 590,956 | 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 | 1,456 | 70,388
Financing receivable, year three | 70,175 | 71,217
Financing receivable, year four | 71,686 | 41,235
Financing receivable, year five | 40,226 | 118,900
Financing receivable, prior to year five | 365,039 | 286,379
Revolving | 610 | 601
Revolving-term | 0 | 0
Total | 549,192 | 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 | 25,534 | 34,177
Revolving | 0 | 0
Revolving-term | 0 | 0
Total | 25,534 | 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 | 16,230 | 0
Revolving | 0 | 573
Revolving-term | 0 | 0
Total | 16,230 | 16,803
Commercial loans | Multifamily |  |
Financing Receivable, before Allowance for Credit Loss [Abstract] |  |
Financing receivable, year one | 1,722 | 108,274
Financing receivable, year two | 106,452 | 1,813,647
Financing receivable, year three | 1,804,273 | 1,155,619
Financing receivable, year four | 1,210,918 | 488,595
Financing receivable, year five | 470,538 | 191,935
Financing receivable, prior to year five | 357,038 | 182,119
Revolving | 0 | 0
Revolving-term | 0 | 0
Total | 3,950,941 | 3,940,189
Commercial loans | Multifamily | Pass |  |
Financing Receivable, before Allowance for Credit Loss [Abstract] |  |
Financing receivable, year one | 1,722 | 108,274
Financing receivable, year two | 106,452 | 1,813,647
Financing receivable, year three | 1,730,141 | 1,151,677
Financing receivable, year four | 1,207,002 | 475,708
Financing receivable, year five | 430,732 | 189,567
Financing receivable, prior to year five | 303,043 | 177,712
Revolving | 0 | 0
Revolving-term | 0 | 0
Total | 3,779,092 | 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 | 74,132 | 3,942
Financing receivable, year four | 3,916 | 12,887
Financing receivable, year five | 39,806 | 2,368
Financing receivable, prior to year five | 47,758 | 1,344
Revolving | 0 | 0
Revolving-term | 0 | 0
Total | 165,612 | 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 | 6,237 | 3,063
Revolving | 0 | 0
Revolving-term | 0 | 0
Total | 6,237 | 3,063
Commercial loans | Multifamily construction |  |
Financing Receivable, before Allowance for Credit Loss [Abstract] |  |
Financing receivable, year one | 0 | (198)
Financing receivable, year two | 28,529 | 56,013
Financing receivable, year three | 65,652 | 112,234
Financing receivable, year four | 63,231 | 0
Financing receivable, year five | 0 | 0
Financing receivable, prior to year five | 0 | 0
Revolving | 0 | 0
Revolving-term | 0 | 0
Total | 157,412 | 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 | 28,529 | 56,013
Financing receivable, year three | 65,652 | 112,234
Financing receivable, year four | 63,231 | 0
Financing receivable, year five | 0 | 0
Financing receivable, prior to year five | 0 | 0
Revolving | 0 | 0
Revolving-term | 0 | 0
Total | 157,412 | 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 | 5,810 | 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 | 9,631 | 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 | 5,810 | 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 | 5,810 | 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 | 103,729 | 75,305
Financing receivable, year two | 27,734 | 39,621
Financing receivable, year three | 10,095 | 12,294
Financing receivable, year four | 7,035 | 0
Financing receivable, year five | 0 | 0
Financing receivable, prior to year five | 69 | 72
Revolving | 165,673 | 146,758
Revolving-term | 0 | 0
Total | 314,335 | 274,050
Commercial loans | Single family construction | Pass |  |
Financing Receivable, before Allowance for Credit Loss [Abstract] |  |
Financing receivable, year one | 103,729 | 75,305
Financing receivable, year two | 27,734 | 39,621
Financing receivable, year three | 10,095 | 12,294
Financing receivable, year four | 7,035 | 0
Financing receivable, year five | 0 | 0
Financing receivable, prior to year five | 69 | 72
Revolving | 165,673 | 146,758
Revolving-term | 0 | 0
Total | 314,335 | 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 | 5,093 | 27,114
Financing receivable, year two | 19,913 | 56,469
Financing receivable, year three | 20,843 | 19,871
Financing receivable, year four | 7,952 | 1,850
Financing receivable, year five | 422 | 0
Financing receivable, prior to year five | 0 | 0
Revolving | 0 | 0
Revolving-term | 0 | 0
Total | 54,223 | 105,304
Commercial loans | Single family construction to permanent | Current |  |
Financing Receivable, before Allowance for Credit Loss [Abstract] |  |
Financing receivable, year one | 5,093 | 27,114
Financing receivable, year two | 19,913 | 56,469
Financing receivable, year three | 20,843 | 19,871
Financing receivable, year four | 7,952 | 1,850
Financing receivable, year five | 422 | 0
Financing receivable, prior to year five | 0 | 0
Revolving | 0 | 0
Revolving-term | 0 | 0
Total | 54,223 | 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 | 1,415 | 14,331
Financing receivable, year two | 12,430 | 69,877
Financing receivable, year three | 66,464 | 48,919
Financing receivable, year four | 42,211 | 43,399
Financing receivable, year five | 42,208 | 68,601
Financing receivable, prior to year five | 200,320 | 145,034
Revolving | 4 | 2
Revolving-term | 86 | 1,122
Total | 365,138 | 391,285
Commercial loans | Owner occupied CRE | Pass |  |
Financing Receivable, before Allowance for Credit Loss [Abstract] |  |
Financing receivable, year one | 1,415 | 12,459
Financing receivable, year two | 10,620 | 68,399
Financing receivable, year three | 59,954 | 39,629
Financing receivable, year four | 34,535 | 43,399
Financing receivable, year five | 42,208 | 65,392
Financing receivable, prior to year five | 171,189 | 111,199
Revolving | 4 | 2
Revolving-term | 86 | 1,122
Total | 320,011 | 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 | 1,810 | 1,478
Financing receivable, year three | 6,166 | 9,290
Financing receivable, year four | 7,676 | 0
Financing receivable, year five | 0 | 2,956
Financing receivable, prior to year five | 26,750 | 28,784
Revolving | 0 | 0
Revolving-term | 0 | 0
Total | 42,402 | 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 | 344 | 0
Financing receivable, year four | 0 | 0
Financing receivable, year five | 0 | 253
Financing receivable, prior to year five | 2,381 | 5,051
Revolving | 0 | 0
Revolving-term | 0 | 0
Total | 2,725 | 5,305
Commercial loans | Commercial business |  |
Financing Receivable, before Allowance for Credit Loss [Abstract] |  |
Financing receivable, year one | 26,977 | 17,970
Financing receivable, year two | 16,315 | 57,357
Financing receivable, year three | 49,684 | 32,252
Financing receivable, year four | 24,440 | 41,005
Financing receivable, year five | 36,821 | 20,438
Financing receivable, prior to year five | 38,261 | 26,827
Revolving | 152,632 | 162,162
Revolving-term | 869 | 1,038
Total | 345,999 | 359,049
Commercial loans | Commercial business | Pass |  |
Financing Receivable, before Allowance for Credit Loss [Abstract] |  |
Financing receivable, year one | 26,722 | 17,970
Financing receivable, year two | 15,893 | 45,892
Financing receivable, year three | 38,551 | 27,227
Financing receivable, year four | 22,573 | 33,404
Financing receivable, year five | 29,617 | 16,198
Financing receivable, prior to year five | 32,943 | 24,903
Revolving | 149,728 | 157,656
Revolving-term | 835 | 973
Total | 316,862 | 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 | 0 | 2,891
Financing receivable, year four | 1,867 | 0
Financing receivable, year five | 689 | 452
Financing receivable, prior to year five | 685 | 38
Revolving | 2 | 3,485
Revolving-term | 0 | 0
Total | 3,243 | 18,331
Commercial loans | Commercial business | Substandard |  |
Financing Receivable, before Allowance for Credit Loss [Abstract] |  |
Financing receivable, year one | 255 | 0
Financing receivable, year two | 422 | 0
Financing receivable, year three | 11,133 | 2,134
Financing receivable, year four | 0 | 7,601
Financing receivable, year five | 6,515 | 3,788
Financing receivable, prior to year five | 4,633 | 1,886
Revolving | 2,902 | 1,021
Revolving-term | 34 | 65
Total | 25,894 | 16,495
Consumer loans |  |
Financing Receivable, before Allowance for Credit Loss [Abstract] |  |
Financing receivable, year one | 1,310 | 29,185
Financing receivable, year two | 38,654 | 357,189
Financing receivable, year three | 383,996 | 314,177
Financing receivable, year four | 308,852 | 147,304
Financing receivable, year five | 141,419 | 49,172
Financing receivable, prior to year five | 269,574 | 250,057
Revolving | 396,121 | 371,845
Revolving-term | 4,693 | 5,651
Total | 1,544,619 | 1,524,580
Consumer loans | Single family |  |
Financing Receivable, before Allowance for Credit Loss [Abstract] |  |
Financing receivable, year one | 254 | 27,011
Financing receivable, year two | 37,460 | 354,691
Financing receivable, year three | 382,171 | 313,866
Financing receivable, year four | 308,697 | 147,183
Financing receivable, year five | 141,332 | 49,126
Financing receivable, prior to year five | 268,067 | 248,402
Revolving | 0 | 0
Revolving-term | 0 | 0
Total | 1,137,981 | 1,140,279
Consumer loans | Single family | Current |  |
Financing Receivable, before Allowance for Credit Loss [Abstract] |  |
Financing receivable, year one | 254 | 27,011
Financing receivable, year two | 37,460 | 354,691
Financing receivable, year three | 382,171 | 313,866
Financing receivable, year four | 308,697 | 147,183
Financing receivable, year five | 141,332 | 49,126
Financing receivable, prior to year five | 264,815 | 245,574
Revolving | 0 | 0
Revolving-term | 0 | 0
Total | 1,134,729 | 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 | 713 | 781
Revolving | 0 | 0
Revolving-term | 0 | 0
Total | 713 | 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 | 235 | 1,374
Revolving | 0 | 0
Revolving-term | 0 | 0
Total | 235 | 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 | 2,304 | 673
Revolving | 0 | 0
Revolving-term | 0 | 0
Total | 2,304 | 673
Consumer loans | Home equity and other |  |
Financing Receivable, before Allowance for Credit Loss [Abstract] |  |
Financing receivable, year one | 1,056 | 2,174
Financing receivable, year two | 1,194 | 2,498
Financing receivable, year three | 1,825 | 311
Financing receivable, year four | 155 | 121
Financing receivable, year five | 87 | 46
Financing receivable, prior to year five | 1,507 | 1,655
Revolving | 396,121 | 371,845
Revolving-term | 4,693 | 5,651
Total | 406,638 | 384,301
Consumer loans | Home equity and other | Current |  |
Financing Receivable, before Allowance for Credit Loss [Abstract] |  |
Financing receivable, year one | 1,056 | 2,165
Financing receivable, year two | 1,190 | 2,493
Financing receivable, year three | 1,809 | 311
Financing receivable, year four | 150 | 121
Financing receivable, year five | 87 | 46
Financing receivable, prior to year five | 1,484 | 1,631
Revolving | 393,460 | 370,462
Revolving-term | 4,532 | 5,483
Total | 403,768 | 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 | 4 | 2
Financing receivable, year three | 4 | 0
Financing receivable, year four | 4 | 0
Financing receivable, year five | 0 | 0
Financing receivable, prior to year five | 0 | 0
Revolving | 1,467 | 802
Revolving-term | 28 | 162
Total | 1,507 | 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 | 0 | 3
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 | 193 | 419
Revolving-term | 6 | 0
Total | 205 | 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 | 7 | 0
Financing receivable, year four | 0 | 0
Financing receivable, year five | 0 | 0
Financing receivable, prior to year five | 23 | 24
Revolving | 1,001 | 162
Revolving-term | 127 | 6
Total | $ 1,158 | $ 192

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