XML 42 R33.htm IDEA: XBRL DOCUMENT
v3.24.0.1

Loans Receivable - Loans Based on Credit Quality Indicators (Details) - USD ($) $ in Thousands | 3 Months Ended |
--- | --- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Sep. 30, 2023
Gross Charge-offs |  |  |
Total Loans | $ 293 | $ 228 |
Commercial loans |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
YTD 2024 | 112,774 |  | $ 771,470
2023 | 844,582 |  | 2,845,113
2022 | 2,987,666 |  | 2,530,000
2021 | 2,470,087 |  | 1,239,813
2020 | 1,111,047 |  | 516,214
Prior to 2020 | 1,677,834 |  | 1,277,596
Revolving Loans | 1,345,944 |  | 1,292,844
Revolving to Term Loans | 14,015 |  | 34,560
Total Loans | 10,563,949 |  | 10,507,610
Gross Charge-offs |  |  |
YTD 2024 | 0 |  |
2023 | 0 |  |
2022 | 0 |  |
2021 | 0 |  |
2020 | 0 |  |
Prior to 2020 | 49 |  |
Revolving Loans | 0 |  |
Revolving to Term Loans | 31 |  |
Total Loans | 80 | 82 |
Commercial loans | Pass |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
YTD 2024 | 112,378 |  | 768,070
2023 | 840,865 |  | 2,732,691
2022 | 2,864,535 |  | 2,501,906
2021 | 2,446,355 |  | 1,210,070
2020 | 1,075,939 |  | 469,897
Prior to 2020 | 1,554,879 |  | 1,190,162
Revolving Loans | 1,274,404 |  | 1,219,189
Revolving to Term Loans | 14,014 |  | 27,681
Total Loans | 10,183,369 |  | 10,119,666
Commercial loans | Special mention |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
YTD 2024 | 0 |  | 0
2023 | 0 |  | 90,428
2022 | 90,668 |  | 788
2021 | 784 |  | 0
2020 | 0 |  | 6,999
Prior to 2020 | 0 |  | 0
Revolving Loans | 2,850 |  | 3,707
Revolving to Term Loans | 0 |  | 0
Total Loans | 94,302 |  | 101,922
Commercial loans | Substandard |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
YTD 2024 | 396 |  | 3,400
2023 | 3,717 |  | 21,994
2022 | 32,463 |  | 27,306
2021 | 22,948 |  | 29,743
2020 | 35,108 |  | 39,318
Prior to 2020 | 122,955 |  | 87,434
Revolving Loans | 68,690 |  | 69,948
Revolving to Term Loans | 1 |  | 6,879
Total Loans | 286,278 |  | 286,022
Commercial loans | Multi-family |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
YTD 2024 | 10,416 |  | 135,859
2023 | 135,720 |  | 754,265
2022 | 874,986 |  | 853,307
2021 | 957,885 |  | 544,077
2020 | 464,585 |  | 143,548
Prior to 2020 | 529,354 |  | 406,015
Revolving Loans | 35,552 |  | 49,523
Revolving to Term Loans | 13,959 |  | 0
Total Loans | 3,022,457 |  | 2,886,594
Gross Charge-offs |  |  |
Total Loans | 0 | 0 |
Commercial loans | Multi-family | Pass |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
YTD 2024 | 10,416 |  | 135,859
2023 | 135,720 |  | 658,126
2022 | 778,628 |  | 850,998
2021 | 955,583 |  | 541,655
2020 | 462,169 |  | 135,965
Prior to 2020 | 521,665 |  | 400,412
Revolving Loans | 35,552 |  | 49,523
Revolving to Term Loans | 13,959 |  | 0
Total Loans | 2,913,692 |  | 2,772,538
Commercial loans | Multi-family | Special mention |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
YTD 2024 | 0 |  | 0
2023 | 0 |  | 90,428
2022 | 90,668 |  | 0
2021 | 0 |  | 0
2020 | 0 |  | 0
Prior to 2020 | 0 |  | 0
Revolving Loans | 0 |  | 0
Revolving to Term Loans | 0 |  | 0
Total Loans | 90,668 |  | 90,428
Commercial loans | Multi-family | Substandard |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
YTD 2024 | 0 |  | 0
2023 | 0 |  | 5,711
2022 | 5,690 |  | 2,309
2021 | 2,302 |  | 2,422
2020 | 2,416 |  | 7,583
Prior to 2020 | 7,689 |  | 5,603
Revolving Loans | 0 |  | 0
Revolving to Term Loans | 0 |  | 0
Total Loans | 18,097 |  | 23,628
Commercial loans | Commercial real estate |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
YTD 2024 | 61,720 |  | 221,556
2023 | 205,065 |  | 918,137
2022 | 991,674 |  | 739,667
2021 | 753,647 |  | 501,479
2020 | 474,763 |  | 294,920
Prior to 2020 | 843,107 |  | 631,993
Revolving Loans | 2,317 |  | 2,349
Revolving to Term Loans | 0 |  | 0
Total Loans | 3,332,293 |  | 3,310,101
Gross Charge-offs |  |  |
Total Loans | 0 | 0 |
Commercial loans | Commercial real estate | Pass |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
YTD 2024 | 61,720 |  | 221,057
2023 | 204,566 |  | 912,776
2022 | 979,199 |  | 735,069
2021 | 750,603 |  | 476,941
2020 | 444,855 |  | 262,945
Prior to 2020 | 777,833 |  | 596,459
Revolving Loans | 2,317 |  | 2,349
Revolving to Term Loans | 0 |  | 0
Total Loans | 3,221,093 |  | 3,207,596
Commercial loans | Commercial real estate | Special mention |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
YTD 2024 | 0 |  | 0
2023 | 0 |  | 0
2022 | 0 |  | 788
2021 | 784 |  | 0
2020 | 0 |  | 4,059
Prior to 2020 | 0 |  | 0
Revolving Loans | 0 |  | 0
Revolving to Term Loans | 0 |  | 0
Total Loans | 784 |  | 4,847
Commercial loans | Commercial real estate | Substandard |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
YTD 2024 | 0 |  | 499
2023 | 499 |  | 5,361
2022 | 12,475 |  | 3,810
2021 | 2,260 |  | 24,538
2020 | 29,908 |  | 27,916
Prior to 2020 | 65,274 |  | 35,534
Revolving Loans | 0 |  | 0
Revolving to Term Loans | 0 |  | 0
Total Loans | 110,416 |  | 97,658
Commercial loans | Commercial & industrial |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
YTD 2024 | 13,685 |  | 155,411
2023 | 160,759 |  | 264,330
2022 | 295,156 |  | 325,250
2021 | 316,186 |  | 119,872
2020 | 115,583 |  | 31,005
Prior to 2020 | 237,805 |  | 221,339
Revolving Loans | 1,225,752 |  | 1,163,551
Revolving to Term Loans | 56 |  | 34,560
Total Loans | 2,364,982 |  | 2,315,318
Gross Charge-offs |  |  |
YTD 2024 | 0 |  |
2023 | 0 |  |
2022 | 0 |  |
2021 | 0 |  |
2020 | 0 |  |
Prior to 2020 | 31 |  |
Revolving Loans | 0 |  |
Revolving to Term Loans | 31 |  |
Total Loans | 62 | 82 |
Commercial loans | Commercial & industrial | Pass |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
YTD 2024 | 13,685 |  | 155,411
2023 | 160,759 |  | 258,798
2022 | 284,699 |  | 316,713
2021 | 310,840 |  | 117,089
2020 | 112,799 |  | 24,246
Prior to 2020 | 187,813 |  | 175,042
Revolving Loans | 1,154,212 |  | 1,089,896
Revolving to Term Loans | 55 |  | 27,681
Total Loans | 2,224,862 |  | 2,164,876
Commercial loans | Commercial & industrial | Special mention |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
YTD 2024 | 0 |  | 0
2023 | 0 |  | 0
2022 | 0 |  | 0
2021 | 0 |  | 0
2020 | 0 |  | 2,940
Prior to 2020 | 0 |  | 0
Revolving Loans | 2,850 |  | 3,707
Revolving to Term Loans | 0 |  | 0
Total Loans | 2,850 |  | 6,647
Commercial loans | Commercial & industrial | Substandard |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
YTD 2024 | 0 |  | 0
2023 | 0 |  | 5,532
2022 | 10,457 |  | 8,537
2021 | 5,346 |  | 2,783
2020 | 2,784 |  | 3,819
Prior to 2020 | 49,992 |  | 46,297
Revolving Loans | 68,690 |  | 69,948
Revolving to Term Loans | 1 |  | 6,879
Total Loans | 137,270 |  | 143,795
Commercial loans | Construction |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
YTD 2024 | 17,355 |  | 238,051
2023 | 324,942 |  | 838,696
2022 | 764,724 |  | 572,500
2021 | 409,587 |  | 68,105
2020 | 49,865 |  | 46,390
Prior to 2020 | 49,310 |  | 373
Revolving Loans | 79,723 |  | 74,821
Revolving to Term Loans | 0 |  | 0
Total Loans | 1,695,506 |  | 1,838,936
Gross Charge-offs |  |  |
Total Loans | 0 | 0 |
Commercial loans | Construction | Pass |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
YTD 2024 | 16,959 |  | 235,150
2023 | 321,724 |  | 833,577
2022 | 761,021 |  | 559,850
2021 | 396,547 |  | 68,105
2020 | 49,865 |  | 46,390
Prior to 2020 | 49,310 |  | 373
Revolving Loans | 79,723 |  | 74,821
Revolving to Term Loans | 0 |  | 0
Total Loans | 1,675,149 |  | 1,818,266
Commercial loans | Construction | Substandard |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
YTD 2024 | 396 |  | 2,901
2023 | 3,218 |  | 5,119
2022 | 3,703 |  | 12,650
2021 | 13,040 |  | 0
2020 | 0 |  | 0
Prior to 2020 | 0 |  | 0
Revolving Loans | 0 |  | 0
Revolving to Term Loans | 0 |  | 0
Total Loans | 20,357 |  | 20,670
Commercial loans | Land - acquisition & development |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
YTD 2024 | 9,598 |  | 20,593
2023 | 18,096 |  | 69,685
2022 | 61,126 |  | 39,276
2021 | 32,782 |  | 6,280
2020 | 6,251 |  | 351
Prior to 2020 | 18,258 |  | 17,876
Revolving Loans | 2,600 |  | 2,600
Revolving to Term Loans | 0 |  | 0
Total Loans | 148,711 |  | 156,661
Gross Charge-offs |  |  |
YTD 2024 | 0 |  |
2023 | 0 |  |
2022 | 0 |  |
2021 | 0 |  |
2020 | 0 |  |
Prior to 2020 | 18 |  |
Revolving Loans | 0 |  |
Revolving to Term Loans | 0 |  |
Total Loans | 18 | 0 |
Commercial loans | Land - acquisition & development | Pass |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
YTD 2024 | 9,598 |  | 20,593
2023 | 18,096 |  | 69,414
2022 | 60,988 |  | 39,276
2021 | 32,782 |  | 6,280
2020 | 6,251 |  | 351
Prior to 2020 | 18,258 |  | 17,876
Revolving Loans | 2,600 |  | 2,600
Revolving to Term Loans | 0 |  | 0
Total Loans | 148,573 |  | 156,390
Commercial loans | Land - acquisition & development | Substandard |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
YTD 2024 | 0 |  | 0
2023 | 0 |  | 271
2022 | 138 |  | 0
2021 | 0 |  | 0
2020 | 0 |  | 0
Prior to 2020 | 0 |  | 0
Revolving Loans | 0 |  | 0
Revolving to Term Loans | 0 |  | 0
Total Loans | 138 |  | 271
Consumer loans |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
YTD 2024 | 55,919 |  | 625,700
2023 | 640,957 |  | 1,743,204
2022 | 1,757,745 |  | 1,776,345
2021 | 1,748,858 |  | 743,758
2020 | 736,578 |  | 300,626
Prior to 2020 | 1,983,376 |  | 1,694,901
Revolving Loans | 276,154 |  | 259,975
Revolving to Term Loans | 406 |  | 1,638
Total Loans | 7,199,993 |  | 7,146,147
Gross Charge-offs |  |  |
YTD 2024 | 0 |  |
2023 | 0 |  |
2022 | 0 |  |
2021 | 0 |  |
2020 | 0 |  |
Prior to 2020 | 116 |  |
Revolving Loans | 97 |  |
Revolving to Term Loans | 0 |  |
Total Loans | 213 | 146 |
Consumer loans | Current |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
YTD 2024 | 55,919 |  | 624,878
2023 | 639,141 |  | 1,739,246
2022 | 1,755,229 |  | 1,772,797
2021 | 1,744,985 |  | 738,016
2020 | 735,150 |  | 300,376
Prior to 2020 | 1,968,801 |  | 1,680,457
Revolving Loans | 274,795 |  | 258,283
Revolving to Term Loans | 406 |  | 1,637
Total Loans | 7,174,426 |  | 7,115,690
Consumer loans | 30 Days Delinquent |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
YTD 2024 | 0 |  | 822
2023 | 820 |  | 875
2022 | 1,097 |  | 1,217
2021 | 1,806 |  | 392
2020 | 746 |  | 221
Prior to 2020 | 3,434 |  | 4,301
Revolving Loans | 649 |  | 1,009
Revolving to Term Loans | 0 |  | 0
Total Loans | 8,552 |  | 8,837
Consumer loans | 60 Days Delinquent |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
YTD 2024 | 0 |  | 0
2023 | 0 |  | 1,526
2022 | 863 |  | 1,665
2021 | 1,335 |  | 3,942
2020 | 0 |  | 0
Prior to 2020 | 1,871 |  | 2,217
Revolving Loans | 43 |  | 1
Revolving to Term Loans | 0 |  | 0
Total Loans | 4,112 |  | 9,351
Consumer loans | 90+ days past due |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
YTD 2024 | 0 |  | 0
2023 | 996 |  | 1,557
2022 | 556 |  | 666
2021 | 732 |  | 1,408
2020 | 682 |  | 29
Prior to 2020 | 9,270 |  | 7,926
Revolving Loans | 667 |  | 682
Revolving to Term Loans | 0 |  | 1
Total Loans | 12,903 |  | 12,269
Consumer loans | Construction |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
YTD 2024 | 1,331 |  | 92,081
2023 | 127,150 |  | 219,835
2022 | 132,464 |  | 8,838
2021 | 1,963 |  | 2,860
2020 | 372 |  | 358
Prior to 2020 | 358 |  | 479
Revolving Loans | 0 |  | 0
Revolving to Term Loans | 0 |  | 0
Total Loans | 263,638 |  | 324,451
Gross Charge-offs |  |  |
Total Loans | 0 | 0 |
Consumer loans | Construction | Current |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
YTD 2024 | 1,331 |  | 92,081
2023 | 127,150 |  | 218,988
2022 | 131,617 |  | 8,838
2021 | 1,963 |  | 243
2020 | 372 |  | 358
Prior to 2020 | 358 |  | 479
Revolving Loans | 0 |  | 0
Revolving to Term Loans | 0 |  | 0
Total Loans | 262,791 |  | 320,987
Consumer loans | Construction | 30 Days Delinquent |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
YTD 2024 | 0 |  | 0
2023 | 0 |  | 760
2022 | 760 |  | 0
2021 | 0 |  | 0
2020 | 0 |  | 0
Prior to 2020 | 0 |  | 0
Revolving Loans | 0 |  | 0
Revolving to Term Loans | 0 |  | 0
Total Loans | 760 |  | 760
Consumer loans | Construction | 60 Days Delinquent |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
YTD 2024 |  |  | 0
2023 |  |  | 0
2022 |  |  | 0
2021 |  |  | 2,617
2020 |  |  | 0
Prior to 2020 |  |  | 0
Revolving Loans |  |  | 0
Revolving to Term Loans |  |  | 0
Total Loans |  |  | 2,617
Consumer loans | Construction | 90+ days past due |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
YTD 2024 | 0 |  | 0
2023 | 0 |  | 87
2022 | 87 |  | 0
2021 | 0 |  | 0
2020 | 0 |  | 0
Prior to 2020 | 0 |  | 0
Revolving Loans | 0 |  | 0
Revolving to Term Loans | 0 |  | 0
Total Loans | 87 |  | 87
Consumer loans | Single-family residential |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
YTD 2024 | 50,755 |  | 513,829
2023 | 494,818 |  | 1,481,590
2022 | 1,586,039 |  | 1,722,108
2021 | 1,707,441 |  | 721,375
2020 | 716,859 |  | 296,057
Prior to 2020 | 1,939,537 |  | 1,654,031
Revolving Loans | 0 |  | 0
Revolving to Term Loans | 0 |  | 0
Total Loans | 6,495,449 |  | 6,388,990
Gross Charge-offs |  |  |
Total Loans | 0 | 0 |
Consumer loans | Single-family residential | Current |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
YTD 2024 | 50,755 |  | 513,007
2023 | 493,002 |  | 1,478,479
2022 | 1,584,370 |  | 1,719,163
2021 | 1,703,961 |  | 718,250
2020 | 715,431 |  | 295,836
Prior to 2020 | 1,925,787 |  | 1,640,330
Revolving Loans | 0 |  | 0
Revolving to Term Loans | 0 |  | 0
Total Loans | 6,473,306 |  | 6,365,065
Consumer loans | Single-family residential | 30 Days Delinquent |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
YTD 2024 | 0 |  | 822
2023 | 820 |  | 115
2022 | 337 |  | 859
2021 | 1,470 |  | 392
2020 | 746 |  | 221
Prior to 2020 | 2,758 |  | 4,032
Revolving Loans | 0 |  | 0
Revolving to Term Loans | 0 |  | 0
Total Loans | 6,131 |  | 6,441
Consumer loans | Single-family residential | 60 Days Delinquent |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
YTD 2024 | 0 |  | 0
2023 | 0 |  | 1,526
2022 | 863 |  | 1,420
2021 | 1,335 |  | 1,325
2020 | 0 |  | 0
Prior to 2020 | 1,867 |  | 1,797
Revolving Loans | 0 |  | 0
Revolving to Term Loans | 0 |  | 0
Total Loans | 4,065 |  | 6,068
Consumer loans | Single-family residential | 90+ days past due |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
YTD 2024 | 0 |  | 0
2023 | 996 |  | 1,470
2022 | 469 |  | 666
2021 | 675 |  | 1,408
2020 | 682 |  | 0
Prior to 2020 | 9,125 |  | 7,872
Revolving Loans | 0 |  | 0
Revolving to Term Loans | 0 |  | 0
Total Loans | 11,947 |  | 11,416
Consumer loans | Land - consumer lot loans |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
YTD 2024 | 3,804 |  | 19,128
2023 | 18,850 |  | 41,658
2022 | 39,120 |  | 35,651
2021 | 29,806 |  | 11,517
2020 | 11,342 |  | 4,166
Prior to 2020 | 15,995 |  | 12,722
Revolving Loans | 0 |  | 0
Revolving to Term Loans | 0 |  | 0
Total Loans | 118,917 |  | 124,842
Gross Charge-offs |  |  |
Total Loans | 0 | 0 |
Consumer loans | Land - consumer lot loans | Current |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
YTD 2024 | 3,804 |  | 19,128
2023 | 18,850 |  | 41,658
2022 | 39,120 |  | 35,048
2021 | 29,413 |  | 11,517
2020 | 11,342 |  | 4,166
Prior to 2020 | 15,995 |  | 12,714
Revolving Loans | 0 |  | 0
Revolving to Term Loans | 0 |  | 0
Total Loans | 118,524 |  | 124,231
Consumer loans | Land - consumer lot loans | 30 Days Delinquent |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
YTD 2024 | 0 |  | 0
2023 | 0 |  | 0
2022 | 0 |  | 358
2021 | 336 |  | 0
2020 | 0 |  | 0
Prior to 2020 | 0 |  | 0
Revolving Loans | 0 |  | 0
Revolving to Term Loans | 0 |  | 0
Total Loans | 336 |  | 358
Consumer loans | Land - consumer lot loans | 60 Days Delinquent |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
YTD 2024 |  |  | 0
2023 |  |  | 0
2022 |  |  | 245
2021 |  |  | 0
2020 |  |  | 0
Prior to 2020 |  |  | 0
Revolving Loans |  |  | 0
Revolving to Term Loans |  |  | 0
Total Loans |  |  | 245
Consumer loans | Land - consumer lot loans | 90+ days past due |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
YTD 2024 | 0 |  | 0
2023 | 0 |  | 0
2022 | 0 |  | 0
2021 | 57 |  | 0
2020 | 0 |  | 0
Prior to 2020 | 0 |  | 8
Revolving Loans | 0 |  | 0
Revolving to Term Loans | 0 |  | 0
Total Loans | 57 |  | 8
Consumer loans | HELOC |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
YTD 2024 | 0 |  | 0
2023 | 0 |  | 0
2022 | 0 |  | 0
2021 | 0 |  | 0
2020 | 0 |  | 0
Prior to 2020 | 5,336 |  | 4,091
Revolving Loans | 241,403 |  | 232,026
Revolving to Term Loans | 406 |  | 1,637
Total Loans | 247,145 |  | 237,754
Gross Charge-offs |  |  |
Total Loans | 0 | 0 |
Consumer loans | HELOC | Current |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
YTD 2024 | 0 |  | 0
2023 | 0 |  | 0
2022 | 0 |  | 0
2021 | 0 |  | 0
2020 | 0 |  | 0
Prior to 2020 | 4,797 |  | 3,733
Revolving Loans | 240,274 |  | 230,338
Revolving to Term Loans | 406 |  | 1,637
Total Loans | 245,477 |  | 235,708
Consumer loans | HELOC | 30 Days Delinquent |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
YTD 2024 | 0 |  | 0
2023 | 0 |  | 0
2022 | 0 |  | 0
2021 | 0 |  | 0
2020 | 0 |  | 0
Prior to 2020 | 531 |  | 44
Revolving Loans | 586 |  | 1,006
Revolving to Term Loans | 0 |  | 0
Total Loans | 1,117 |  | 1,050
Consumer loans | HELOC | 60 Days Delinquent |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
YTD 2024 |  |  | 0
2023 |  |  | 0
2022 |  |  | 0
2021 |  |  | 0
2020 |  |  | 0
Prior to 2020 |  |  | 314
Revolving Loans |  |  | 0
Revolving to Term Loans |  |  | 0
Total Loans |  |  | 314
Consumer loans | HELOC | 90+ days past due |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
YTD 2024 | 0 |  | 0
2023 | 0 |  | 0
2022 | 0 |  | 0
2021 | 0 |  | 0
2020 | 0 |  | 0
Prior to 2020 | 8 |  | 0
Revolving Loans | 543 |  | 682
Revolving to Term Loans | 0 |  | 0
Total Loans | 551 |  | 682
Consumer loans | Consumer |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
YTD 2024 | 29 |  | 662
2023 | 139 |  | 121
2022 | 122 |  | 9,748
2021 | 9,648 |  | 8,006
2020 | 8,005 |  | 45
Prior to 2020 | 22,150 |  | 23,578
Revolving Loans | 34,751 |  | 27,949
Revolving to Term Loans | 0 |  | 1
Total Loans | 74,844 |  | 70,110
Gross Charge-offs |  |  |
YTD 2024 | 0 |  |
2023 | 0 |  |
2022 | 0 |  |
2021 | 0 |  |
2020 | 0 |  |
Prior to 2020 | 116 |  |
Revolving Loans | 97 |  |
Revolving to Term Loans | 0 |  |
Total Loans | 213 | $ 146 |
Consumer loans | Consumer | Current |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
YTD 2024 | 29 |  | 662
2023 | 139 |  | 121
2022 | 122 |  | 9,748
2021 | 9,648 |  | 8,006
2020 | 8,005 |  | 16
Prior to 2020 | 21,864 |  | 23,201
Revolving Loans | 34,521 |  | 27,945
Revolving to Term Loans | 0 |  | 0
Total Loans | 74,328 |  | 69,699
Consumer loans | Consumer | 30 Days Delinquent |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
YTD 2024 | 0 |  | 0
2023 | 0 |  | 0
2022 | 0 |  | 0
2021 | 0 |  | 0
2020 | 0 |  | 0
Prior to 2020 | 145 |  | 225
Revolving Loans | 63 |  | 3
Revolving to Term Loans | 0 |  | 0
Total Loans | 208 |  | 228
Consumer loans | Consumer | 60 Days Delinquent |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
YTD 2024 | 0 |  | 0
2023 | 0 |  | 0
2022 | 0 |  | 0
2021 | 0 |  | 0
2020 | 0 |  | 0
Prior to 2020 | 4 |  | 106
Revolving Loans | 43 |  | 1
Revolving to Term Loans | 0 |  | 0
Total Loans | 47 |  | 107
Consumer loans | Consumer | 90+ days past due |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
YTD 2024 | 0 |  | 0
2023 | 0 |  | 0
2022 | 0 |  | 0
2021 | 0 |  | 0
2020 | 0 |  | 29
Prior to 2020 | 137 |  | 46
Revolving Loans | 124 |  | 0
Revolving to Term Loans | 0 |  | 1
Total Loans | $ 261 |  | $ 76

X
- Definition Amount, excluding accrued interest, of decrease in allowance for credit loss on financing receivable from writeoff. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-6 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 13 -Subparagraph (d) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-13 + Details
Name: | us-gaap_FinancingReceivableExcludingAccruedInterestAllowanceForCreditLossWriteoff
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_FinancingReceivableExcludingAccruedInterestAllowanceForCreditLossWriteoffByOriginationYearAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amortized cost excluding accrued interest, before allowance for credit loss, of financing receivable classified as current. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479344/326-20-45-1 + Details
Name: | us-gaap_FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLossCurrent
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amortized cost excluding accrued interest, of financing receivable originated more than five years prior to current fiscal year. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 79 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479294/326-20-55-79 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-6 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 3B -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-3B + Details
Name: | us-gaap_FinancingReceivableExcludingAccruedInterestOriginatedMoreThanFiveYearsBeforeCurrentFiscalYear
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount, excluding accrued interest, of writeoff of financing receivable originated more than five years before current fiscal year. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-6 + Details
Name: | us-gaap_FinancingReceivableExcludingAccruedInterestOriginatedMoreThanFiveYearsBeforeCurrentFiscalYearWriteoff
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amortized cost excluding accrued interest, of financing receivable that can be withdrawn, repaid, and redrawn. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 79 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479294/326-20-55-79 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-6 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 3B -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-3B + Details
Name: | us-gaap_FinancingReceivableExcludingAccruedInterestRevolving
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amortized cost excluding accrued interest, of revolving financing receivable converted to term loan. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 79 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479294/326-20-55-79 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 6A -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-6A Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 3B -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-3B + Details
Name: | us-gaap_FinancingReceivableExcludingAccruedInterestRevolvingConvertedToTermLoan
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount, excluding accrued interest, of writeoff of revolving financing receivable converted to term loan. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 6A -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-6A + Details
Name: | us-gaap_FinancingReceivableExcludingAccruedInterestRevolvingConvertedToTermLoanWriteoff
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount, excluding accrued interest, of writeoff of financing receivable that can be withdrawn, repaid, and redrawn. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-6 + Details
Name: | us-gaap_FinancingReceivableExcludingAccruedInterestRevolvingWriteoff
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amortized cost excluding accrued interest, of financing receivable originated four years prior to current fiscal year. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 79 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479294/326-20-55-79 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-6 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 3B -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-3B + Details
Name: | us-gaap_FinancingReceivableExcludingAccruedInterestYearFiveOriginatedFourYearsBeforeCurrentFiscalYear
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount, excluding accrued interest, of writeoff of financing receivable originated four years before current fiscal year. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-6 + Details
Name: | us-gaap_FinancingReceivableExcludingAccruedInterestYearFiveOriginatedFourYearsBeforeCurrentFiscalYearWriteoff
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amortized cost excluding accrued interest, of financing receivable originated three years prior to current fiscal year. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 79 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479294/326-20-55-79 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-6 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 3B -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-3B + Details
Name: | us-gaap_FinancingReceivableExcludingAccruedInterestYearFourOriginatedThreeYearsBeforeCurrentFiscalYear
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount, excluding accrued interest, of writeoff of financing receivable originated three years before current fiscal year. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-6 + Details
Name: | us-gaap_FinancingReceivableExcludingAccruedInterestYearFourOriginatedThreeYearsBeforeCurrentFiscalYearWriteoff
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amortized cost excluding accrued interest, of financing receivable originated in current fiscal year. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 79 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479294/326-20-55-79 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-6 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 3B -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-3B + Details
Name: | us-gaap_FinancingReceivableExcludingAccruedInterestYearOneOriginatedCurrentFiscalYear
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount, excluding accrued interest, of writeoff of financing receivable originated in current fiscal year. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-6 + Details
Name: | us-gaap_FinancingReceivableExcludingAccruedInterestYearOneOriginatedCurrentFiscalYearWriteoff
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amortized cost excluding accrued interest, of financing receivable originated two years prior to current fiscal year. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 79 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479294/326-20-55-79 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-6 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 3B -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-3B + Details
Name: | us-gaap_FinancingReceivableExcludingAccruedInterestYearThreeOriginatedTwoYearsBeforeCurrentFiscalYear
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount, excluding accrued interest, of writeoff of financing receivable originated two years before current fiscal year. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-6 + Details
Name: | us-gaap_FinancingReceivableExcludingAccruedInterestYearThreeOriginatedTwoYearsBeforeCurrentFiscalYearWriteoff
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amortized cost excluding accrued interest of financing receivable originated in fiscal year prior to current fiscal year. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 79 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479294/326-20-55-79 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-6 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 3B -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-3B + Details
Name: | us-gaap_FinancingReceivableExcludingAccruedInterestYearTwoOriginatedFiscalYearBeforeCurrentFiscalYear
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount, excluding accrued interest, of writeoff of financing receivable originated in fiscal year before current fiscal year. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-6 + Details
Name: | us-gaap_FinancingReceivableExcludingAccruedInterestYearTwoOriginatedFiscalYearBeforeCurrentFiscalYearWriteoff
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 5 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-5 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 79 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479294/326-20-55-79 + Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=us-gaap_CommercialPortfolioSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InternalCreditAssessmentAxis=us-gaap_PassMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InternalCreditAssessmentAxis=us-gaap_SpecialMentionMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InternalCreditAssessmentAxis=us-gaap_SubstandardMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=srt_MultifamilyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=us-gaap_CommercialRealEstateMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=wfsl_CommercialAndIndustrialMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=us-gaap_ConstructionLoansMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=wfsl_LandAcquisitionAndDevelopmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=us-gaap_ConsumerPortfolioSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablesPeriodPastDueAxis=us-gaap_FinancialAssetNotPastDueMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablesPeriodPastDueAxis=us-gaap_FinancingReceivables1To29DaysPastDueMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablesPeriodPastDueAxis=us-gaap_FinancingReceivables30To59DaysPastDueMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablesPeriodPastDueAxis=us-gaap_FinancingReceivablesEqualToGreaterThan90DaysPastDueMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=srt_SingleFamilyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=wfsl_LandConsumerLotLoansMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=us-gaap_HomeEquityMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=us-gaap_ConsumerLoanMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |