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v3.25.3

ALLOWANCE FOR LOAN LOSSES - Loans Based on Credit Quality Indicators (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Sep. 30, 2025 | Sep. 30, 2024
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Gross loans | $ 20,288,338 | $ 21,120,107
Pass |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Gross loans | $ 19,406,000 | $ 20,615,520
Pass | Accounts Receivable | Credit Concentration Risk |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total grade as a % of total loans | 95.70% | 97.60%
Special Mention |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Gross loans | $ 247,830 | $ 77,159
Special Mention | Accounts Receivable | Credit Concentration Risk |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total grade as a % of total loans | 1.20% | 0.40%
Substandard |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Gross loans | $ 629,353 | $ 427,428
Substandard | Accounts Receivable | Credit Concentration Risk |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total grade as a % of total loans | 3.10% | 2.00%
Doubtful |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Gross loans | $ 5,131 | $ 0
Doubtful | Accounts Receivable | Credit Concentration Risk |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total grade as a % of total loans | 0.00% | 0.00%
Loss |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Gross loans | $ 24 | $ 0
Loss | Accounts Receivable | Credit Concentration Risk |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total grade as a % of total loans | 0.00% | 0.00%
Commercial loans |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Gross loans | $ 11,851,657 | $ 12,205,420
Commercial loans | Pass |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Gross loans | 10,994,504 | 11,723,996
Commercial loans | Special Mention |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Gross loans | 247,830 | 77,159
Commercial loans | Substandard |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Gross loans | 604,168 | 404,265
Commercial loans | Doubtful |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Gross loans | 5,131 | 0
Commercial loans | Loss |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Gross loans | 24 | 0
Commercial loans | Multi-family |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Gross loans | 4,631,321 | 4,556,200
Commercial loans | Multi-family | Pass |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Gross loans | 4,337,347 | 4,476,283
Commercial loans | Multi-family | Special Mention |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Gross loans | 136,817 | 12,377
Commercial loans | Multi-family | Substandard |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Gross loans | 154,807 | 67,540
Commercial loans | Multi-family | Doubtful |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Gross loans | 2,350 | 0
Commercial loans | Multi-family | Loss |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Gross loans | 0 | 0
Commercial loans | Commercial real estate |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Gross loans | 3,588,950 | 3,732,155
Commercial loans | Commercial real estate | Pass |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Gross loans | 3,339,062 | 3,587,682
Commercial loans | Commercial real estate | Special Mention |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Gross loans | 61,580 | 40,297
Commercial loans | Commercial real estate | Substandard |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Gross loans | 185,527 | 104,176
Commercial loans | Commercial real estate | Doubtful |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Gross loans | 2,781 | 0
Commercial loans | Commercial real estate | Loss |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Gross loans | 0 | 0
Commercial loans | Commercial & industrial |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Gross loans | 2,386,363 | 2,332,732
Commercial loans | Commercial & industrial | Pass |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Gross loans | 2,086,750 | 2,107,780
Commercial loans | Commercial & industrial | Special Mention |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Gross loans | 44,998 | 21,264
Commercial loans | Commercial & industrial | Substandard |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Gross loans | 254,591 | 203,688
Commercial loans | Commercial & industrial | Doubtful |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Gross loans | 0 | 0
Commercial loans | Commercial & industrial | Loss |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Gross loans | 24 | 0
Commercial loans | Construction |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Gross loans | 1,105,101 | 1,424,016
Commercial loans | Construction | Pass |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Gross loans | 1,091,682 | 1,392,332
Commercial loans | Construction | Special Mention |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Gross loans | 4,435 | 3,221
Commercial loans | Construction | Substandard |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Gross loans | 8,984 | 28,463
Commercial loans | Construction | Doubtful |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Gross loans | 0 | 0
Commercial loans | Construction | Loss |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Gross loans | 0 | 0
Commercial loans | Land - acquisition & development |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Gross loans | 139,922 | 160,317
Commercial loans | Land - acquisition & development | Pass |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Gross loans | 139,663 | 159,919
Commercial loans | Land - acquisition & development | Special Mention |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Gross loans | 0 | 0
Commercial loans | Land - acquisition & development | Substandard |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Gross loans | 259 | 398
Commercial loans | Land - acquisition & development | Doubtful |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Gross loans | 0 | 0
Commercial loans | Land - acquisition & development | Loss |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Gross loans | 0 | 0
Consumer loans |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Gross loans | 8,436,681 | 8,914,687
Consumer loans | Pass |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Gross loans | 8,411,496 | 8,891,524
Consumer loans | Special Mention |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Gross loans | 0 | 0
Consumer loans | Substandard |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Gross loans | 25,185 | 23,163
Consumer loans | Doubtful |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Gross loans | 0 | 0
Consumer loans | Loss |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Gross loans | 0 | 0
Consumer loans | Construction |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Gross loans | 78,243 | 182,415
Consumer loans | Construction | Pass |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Gross loans | 77,483 | 181,567
Consumer loans | Construction | Special Mention |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Gross loans | 0 | 0
Consumer loans | Construction | Substandard |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Gross loans | 760 | 848
Consumer loans | Construction | Doubtful |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Gross loans | 0 | 0
Consumer loans | Construction | Loss |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Gross loans | 0 | 0
Consumer loans | Single-family residential |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Gross loans | 7,936,931 | 8,280,300
Consumer loans | Single-family residential | Pass |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Gross loans | 7,913,120 | 8,258,812
Consumer loans | Single-family residential | Special Mention |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Gross loans | 0 | 0
Consumer loans | Single-family residential | Substandard |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Gross loans | 23,811 | 21,488
Consumer loans | Single-family residential | Doubtful |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Gross loans | 0 | 0
Consumer loans | Single-family residential | Loss |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Gross loans | 0 | 0
Consumer loans | Land - consumer lot loans |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Gross loans | 88,696 | 108,060
Consumer loans | Land - consumer lot loans | Pass |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Gross loans | 88,613 | 108,060
Consumer loans | Land - consumer lot loans | Special Mention |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Gross loans | 0 | 0
Consumer loans | Land - consumer lot loans | Substandard |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Gross loans | 83 | 0
Consumer loans | Land - consumer lot loans | Doubtful |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Gross loans | 0 | 0
Consumer loans | Land - consumer lot loans | Loss |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Gross loans | 0 | 0
Consumer loans | HELOC |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Gross loans | 271,286 | 269,857
Consumer loans | HELOC | Pass |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Gross loans | 270,874 | 269,261
Consumer loans | HELOC | Special Mention |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Gross loans | 0 | 0
Consumer loans | HELOC | Substandard |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Gross loans | 412 | 596
Consumer loans | HELOC | Doubtful |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Gross loans | 0 | 0
Consumer loans | HELOC | Loss |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Gross loans | 0 | 0
Consumer loans | Consumer |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Gross loans | 61,525 | 74,055
Consumer loans | Consumer | Pass |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Gross loans | 61,406 | 73,824
Consumer loans | Consumer | Special Mention |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Gross loans | 0 | 0
Consumer loans | Consumer | Substandard |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Gross loans | 119 | 231
Consumer loans | Consumer | Doubtful |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Gross loans | 0 | 0
Consumer loans | Consumer | Loss |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Gross loans | $ 0 | $ 0

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