v3.26.1
LOANS AND LEASES, NET - Past Due Loans (Details) - USD ($)
$ in Thousands
Jun. 30, 2026
Sep. 30, 2025
Financing Receivable, Past Due [Line Items]    
Loans and leases $ 5,107,841 $ 4,664,908
Accruing and Nonaccruing Loans and Leases    
Financing Receivable, Past Due [Line Items]    
Loans and leases 5,201,868 4,844,427
Accruing and Nonaccruing Loans and Leases | Total loans and leases held for investment    
Financing Receivable, Past Due [Line Items]    
Loans and leases 5,104,580 4,665,006
Accruing and Nonaccruing Loans and Leases | National Lending | Loans held for sale    
Financing Receivable, Past Due [Line Items]    
Loans and leases 97,288 179,421
Accruing and Nonaccruing Loans and Leases | National Lending | Term lending    
Financing Receivable, Past Due [Line Items]    
Loans and leases 2,666,977 2,302,540
Accruing and Nonaccruing Loans and Leases | National Lending | Asset-based lending    
Financing Receivable, Past Due [Line Items]    
Loans and leases 697,687 593,265
Accruing and Nonaccruing Loans and Leases | National Lending | Factoring    
Financing Receivable, Past Due [Line Items]    
Loans and leases 220,026 217,501
Accruing and Nonaccruing Loans and Leases | National Lending | Lease financing    
Financing Receivable, Past Due [Line Items]    
Loans and leases 120,583 149,236
Accruing and Nonaccruing Loans and Leases | National Lending | SBA/USDA    
Financing Receivable, Past Due [Line Items]    
Loans and leases 567,986 511,488
Accruing and Nonaccruing Loans and Leases | National Lending | Other commercial finance    
Financing Receivable, Past Due [Line Items]    
Loans and leases 49,510 149,939
Accruing and Nonaccruing Loans and Leases | National Lending | Commercial finance    
Financing Receivable, Past Due [Line Items]    
Loans and leases 4,322,769 3,923,969
Accruing and Nonaccruing Loans and Leases | National Lending | Consumer finance    
Financing Receivable, Past Due [Line Items]    
Loans and leases 99,430 93,319
Accruing and Nonaccruing Loans and Leases | National Lending | Tax services    
Financing Receivable, Past Due [Line Items]    
Loans and leases 34,770 2,532
Accruing and Nonaccruing Loans and Leases | National Lending | Warehouse finance    
Financing Receivable, Past Due [Line Items]    
Loans and leases 647,611 645,186
Accruing and Nonaccruing Loans and Leases | 30-59 Days Past Due    
Financing Receivable, Past Due [Line Items]    
Loans and leases 58,156 34,733
Accruing and Nonaccruing Loans and Leases | 30-59 Days Past Due | Total loans and leases held for investment    
Financing Receivable, Past Due [Line Items]    
Loans and leases 58,156 32,414
Accruing and Nonaccruing Loans and Leases | 30-59 Days Past Due | National Lending | Loans held for sale    
Financing Receivable, Past Due [Line Items]    
Loans and leases 0 2,319
Accruing and Nonaccruing Loans and Leases | 30-59 Days Past Due | National Lending | Term lending    
Financing Receivable, Past Due [Line Items]    
Loans and leases 54,938 29,283
Accruing and Nonaccruing Loans and Leases | 30-59 Days Past Due | National Lending | Asset-based lending    
Financing Receivable, Past Due [Line Items]    
Loans and leases 0 0
Accruing and Nonaccruing Loans and Leases | 30-59 Days Past Due | National Lending | Factoring    
Financing Receivable, Past Due [Line Items]    
Loans and leases 0 0
Accruing and Nonaccruing Loans and Leases | 30-59 Days Past Due | National Lending | Lease financing    
Financing Receivable, Past Due [Line Items]    
Loans and leases 876 2,222
Accruing and Nonaccruing Loans and Leases | 30-59 Days Past Due | National Lending | SBA/USDA    
Financing Receivable, Past Due [Line Items]    
Loans and leases 917 0
Accruing and Nonaccruing Loans and Leases | 30-59 Days Past Due | National Lending | Other commercial finance    
Financing Receivable, Past Due [Line Items]    
Loans and leases 0 0
Accruing and Nonaccruing Loans and Leases | 30-59 Days Past Due | National Lending | Commercial finance    
Financing Receivable, Past Due [Line Items]    
Loans and leases 56,731 31,505
Accruing and Nonaccruing Loans and Leases | 30-59 Days Past Due | National Lending | Consumer finance    
Financing Receivable, Past Due [Line Items]    
Loans and leases 1,425 909
Accruing and Nonaccruing Loans and Leases | 30-59 Days Past Due | National Lending | Tax services    
Financing Receivable, Past Due [Line Items]    
Loans and leases 0 0
Accruing and Nonaccruing Loans and Leases | 30-59 Days Past Due | National Lending | Warehouse finance    
Financing Receivable, Past Due [Line Items]    
Loans and leases 0 0
Accruing and Nonaccruing Loans and Leases | 60-89 Days Past Due    
Financing Receivable, Past Due [Line Items]    
Loans and leases 134,884 20,699
Accruing and Nonaccruing Loans and Leases | 60-89 Days Past Due | Total loans and leases held for investment    
Financing Receivable, Past Due [Line Items]    
Loans and leases 122,464 18,839
Accruing and Nonaccruing Loans and Leases | 60-89 Days Past Due | National Lending | Loans held for sale    
Financing Receivable, Past Due [Line Items]    
Loans and leases 12,420 1,860
Accruing and Nonaccruing Loans and Leases | 60-89 Days Past Due | National Lending | Term lending    
Financing Receivable, Past Due [Line Items]    
Loans and leases 77,319 8,869
Accruing and Nonaccruing Loans and Leases | 60-89 Days Past Due | National Lending | Asset-based lending    
Financing Receivable, Past Due [Line Items]    
Loans and leases 0 0
Accruing and Nonaccruing Loans and Leases | 60-89 Days Past Due | National Lending | Factoring    
Financing Receivable, Past Due [Line Items]    
Loans and leases 0 0
Accruing and Nonaccruing Loans and Leases | 60-89 Days Past Due | National Lending | Lease financing    
Financing Receivable, Past Due [Line Items]    
Loans and leases 2,187 316
Accruing and Nonaccruing Loans and Leases | 60-89 Days Past Due | National Lending | SBA/USDA    
Financing Receivable, Past Due [Line Items]    
Loans and leases 7,740 8,876
Accruing and Nonaccruing Loans and Leases | 60-89 Days Past Due | National Lending | Other commercial finance    
Financing Receivable, Past Due [Line Items]    
Loans and leases 0 0
Accruing and Nonaccruing Loans and Leases | 60-89 Days Past Due | National Lending | Commercial finance    
Financing Receivable, Past Due [Line Items]    
Loans and leases 87,246 18,061
Accruing and Nonaccruing Loans and Leases | 60-89 Days Past Due | National Lending | Consumer finance    
Financing Receivable, Past Due [Line Items]    
Loans and leases 448 778
Accruing and Nonaccruing Loans and Leases | 60-89 Days Past Due | National Lending | Tax services    
Financing Receivable, Past Due [Line Items]    
Loans and leases 34,770 0
Accruing and Nonaccruing Loans and Leases | 60-89 Days Past Due | National Lending | Warehouse finance    
Financing Receivable, Past Due [Line Items]    
Loans and leases 0 0
Accruing and Nonaccruing Loans and Leases | > 89 Days Past Due    
Financing Receivable, Past Due [Line Items]    
Loans and leases 175,710 58,657
Accruing and Nonaccruing Loans and Leases | > 89 Days Past Due | Total loans and leases held for investment    
Financing Receivable, Past Due [Line Items]    
Loans and leases 175,710 57,136
Accruing and Nonaccruing Loans and Leases | > 89 Days Past Due | National Lending | Loans held for sale    
Financing Receivable, Past Due [Line Items]    
Loans and leases 0 1,521
Accruing and Nonaccruing Loans and Leases | > 89 Days Past Due | National Lending | Term lending    
Financing Receivable, Past Due [Line Items]    
Loans and leases 137,016 30,734
Accruing and Nonaccruing Loans and Leases | > 89 Days Past Due | National Lending | Asset-based lending    
Financing Receivable, Past Due [Line Items]    
Loans and leases 9,064 0
Accruing and Nonaccruing Loans and Leases | > 89 Days Past Due | National Lending | Factoring    
Financing Receivable, Past Due [Line Items]    
Loans and leases 0 0
Accruing and Nonaccruing Loans and Leases | > 89 Days Past Due | National Lending | Lease financing    
Financing Receivable, Past Due [Line Items]    
Loans and leases 3,517 5,291
Accruing and Nonaccruing Loans and Leases | > 89 Days Past Due | National Lending | SBA/USDA    
Financing Receivable, Past Due [Line Items]    
Loans and leases 22,115 17,808
Accruing and Nonaccruing Loans and Leases | > 89 Days Past Due | National Lending | Other commercial finance    
Financing Receivable, Past Due [Line Items]    
Loans and leases 0 0
Accruing and Nonaccruing Loans and Leases | > 89 Days Past Due | National Lending | Commercial finance    
Financing Receivable, Past Due [Line Items]    
Loans and leases 171,712 53,833
Accruing and Nonaccruing Loans and Leases | > 89 Days Past Due | National Lending | Consumer finance    
Financing Receivable, Past Due [Line Items]    
Loans and leases 3,998 826
Accruing and Nonaccruing Loans and Leases | > 89 Days Past Due | National Lending | Tax services    
Financing Receivable, Past Due [Line Items]    
Loans and leases 0 2,477
Accruing and Nonaccruing Loans and Leases | > 89 Days Past Due | National Lending | Warehouse finance    
Financing Receivable, Past Due [Line Items]    
Loans and leases 0 0
Accruing and Nonaccruing Loans and Leases | Total Past Due    
Financing Receivable, Past Due [Line Items]    
Loans and leases 368,750 114,089
Accruing and Nonaccruing Loans and Leases | Total Past Due | Total loans and leases held for investment    
Financing Receivable, Past Due [Line Items]    
Loans and leases 356,330 108,389
Accruing and Nonaccruing Loans and Leases | Total Past Due | National Lending | Loans held for sale    
Financing Receivable, Past Due [Line Items]    
Loans and leases 12,420 5,700
Accruing and Nonaccruing Loans and Leases | Total Past Due | National Lending | Term lending    
Financing Receivable, Past Due [Line Items]    
Loans and leases 269,273 68,886
Accruing and Nonaccruing Loans and Leases | Total Past Due | National Lending | Asset-based lending    
Financing Receivable, Past Due [Line Items]    
Loans and leases 9,064 0
Accruing and Nonaccruing Loans and Leases | Total Past Due | National Lending | Factoring    
Financing Receivable, Past Due [Line Items]    
Loans and leases 0 0
Accruing and Nonaccruing Loans and Leases | Total Past Due | National Lending | Lease financing    
Financing Receivable, Past Due [Line Items]    
Loans and leases 6,580 7,829
Accruing and Nonaccruing Loans and Leases | Total Past Due | National Lending | SBA/USDA    
Financing Receivable, Past Due [Line Items]    
Loans and leases 30,772 26,684
Accruing and Nonaccruing Loans and Leases | Total Past Due | National Lending | Other commercial finance    
Financing Receivable, Past Due [Line Items]    
Loans and leases 0 0
Accruing and Nonaccruing Loans and Leases | Total Past Due | National Lending | Commercial finance    
Financing Receivable, Past Due [Line Items]    
Loans and leases 315,689 103,399
Accruing and Nonaccruing Loans and Leases | Total Past Due | National Lending | Consumer finance    
Financing Receivable, Past Due [Line Items]    
Loans and leases 5,871 2,513
Accruing and Nonaccruing Loans and Leases | Total Past Due | National Lending | Tax services    
Financing Receivable, Past Due [Line Items]    
Loans and leases 34,770 2,477
Accruing and Nonaccruing Loans and Leases | Total Past Due | National Lending | Warehouse finance    
Financing Receivable, Past Due [Line Items]    
Loans and leases 0 0
Accruing and Nonaccruing Loans and Leases | Current    
Financing Receivable, Past Due [Line Items]    
Loans and leases 4,833,118 4,730,338
Accruing and Nonaccruing Loans and Leases | Current | Total loans and leases held for investment    
Financing Receivable, Past Due [Line Items]    
Loans and leases 4,748,250 4,556,617
Accruing and Nonaccruing Loans and Leases | Current | National Lending | Loans held for sale    
Financing Receivable, Past Due [Line Items]    
Loans and leases 84,868 173,721
Accruing and Nonaccruing Loans and Leases | Current | National Lending | Term lending    
Financing Receivable, Past Due [Line Items]    
Loans and leases 2,397,704 2,233,654
Accruing and Nonaccruing Loans and Leases | Current | National Lending | Asset-based lending    
Financing Receivable, Past Due [Line Items]    
Loans and leases 688,623 593,265
Accruing and Nonaccruing Loans and Leases | Current | National Lending | Factoring    
Financing Receivable, Past Due [Line Items]    
Loans and leases 220,026 217,501
Accruing and Nonaccruing Loans and Leases | Current | National Lending | Lease financing    
Financing Receivable, Past Due [Line Items]    
Loans and leases 114,003 141,407
Accruing and Nonaccruing Loans and Leases | Current | National Lending | SBA/USDA    
Financing Receivable, Past Due [Line Items]    
Loans and leases 537,214 484,804
Accruing and Nonaccruing Loans and Leases | Current | National Lending | Other commercial finance    
Financing Receivable, Past Due [Line Items]    
Loans and leases 49,510 149,939
Accruing and Nonaccruing Loans and Leases | Current | National Lending | Commercial finance    
Financing Receivable, Past Due [Line Items]    
Loans and leases 4,007,080 3,820,570
Accruing and Nonaccruing Loans and Leases | Current | National Lending | Consumer finance    
Financing Receivable, Past Due [Line Items]    
Loans and leases 93,559 90,806
Accruing and Nonaccruing Loans and Leases | Current | National Lending | Tax services    
Financing Receivable, Past Due [Line Items]    
Loans and leases 0 55
Accruing and Nonaccruing Loans and Leases | Current | National Lending | Warehouse finance    
Financing Receivable, Past Due [Line Items]    
Loans and leases 647,611 645,186
Nonperforming Loans and Leases    
Financing Receivable, Past Due [Line Items]    
Loans and leases 275,074 99,140
Nonaccrual Balance 255,365 81,416
Nonperforming Loans and Leases | Total loans and leases held for investment    
Financing Receivable, Past Due [Line Items]    
Loans and leases 275,074 97,619
Nonaccrual Balance 255,365 81,416
Nonperforming Loans and Leases | National Lending | Loans held for sale    
Financing Receivable, Past Due [Line Items]    
Loans and leases 0 1,521
Nonaccrual Balance 0 0
Nonperforming Loans and Leases | National Lending | Term lending    
Financing Receivable, Past Due [Line Items]    
Loans and leases 203,487 43,379
Nonaccrual Balance 189,859 38,959
Nonperforming Loans and Leases | National Lending | Asset-based lending    
Financing Receivable, Past Due [Line Items]    
Loans and leases 22,771 24,327
Nonaccrual Balance 22,771 24,327
Nonperforming Loans and Leases | National Lending | Factoring    
Financing Receivable, Past Due [Line Items]    
Loans and leases 18,186 1,291
Nonaccrual Balance 18,186 1,291
Nonperforming Loans and Leases | National Lending | Lease financing    
Financing Receivable, Past Due [Line Items]    
Loans and leases 3,945 5,335
Nonaccrual Balance 3,945 4,268
Nonperforming Loans and Leases | National Lending | SBA/USDA    
Financing Receivable, Past Due [Line Items]    
Loans and leases 22,278 19,984
Nonaccrual Balance 20,195 12,571
Nonperforming Loans and Leases | National Lending | Other commercial finance    
Financing Receivable, Past Due [Line Items]    
Loans and leases 409 0
Nonaccrual Balance 409 0
Nonperforming Loans and Leases | National Lending | Commercial finance    
Financing Receivable, Past Due [Line Items]    
Loans and leases 271,076 94,316
Nonaccrual Balance 255,365 81,416
Nonperforming Loans and Leases | National Lending | Consumer finance    
Financing Receivable, Past Due [Line Items]    
Loans and leases 3,998 826
Nonaccrual Balance 0 0
Nonperforming Loans and Leases | National Lending | Tax services    
Financing Receivable, Past Due [Line Items]    
Loans and leases 0 2,477
Nonaccrual Balance 0 0
Nonperforming Loans and Leases | National Lending | Warehouse finance    
Financing Receivable, Past Due [Line Items]    
Loans and leases 0 0
Nonaccrual Balance 0 0
Nonperforming Loans and Leases | > 89 Days Past Due    
Financing Receivable, Past Due [Line Items]    
Loans and leases 19,709 17,724
Nonperforming Loans and Leases | > 89 Days Past Due | Total loans and leases held for investment    
Financing Receivable, Past Due [Line Items]    
Loans and leases 19,709 16,203
Nonperforming Loans and Leases | > 89 Days Past Due | National Lending | Loans held for sale    
Financing Receivable, Past Due [Line Items]    
Loans and leases 0 1,521
Nonperforming Loans and Leases | > 89 Days Past Due | National Lending | Term lending    
Financing Receivable, Past Due [Line Items]    
Loans and leases 13,628 4,420
Nonperforming Loans and Leases | > 89 Days Past Due | National Lending | Asset-based lending    
Financing Receivable, Past Due [Line Items]    
Loans and leases 0 0
Nonperforming Loans and Leases | > 89 Days Past Due | National Lending | Factoring    
Financing Receivable, Past Due [Line Items]    
Loans and leases 0 0
Nonperforming Loans and Leases | > 89 Days Past Due | National Lending | Lease financing    
Financing Receivable, Past Due [Line Items]    
Loans and leases 0 1,067
Nonperforming Loans and Leases | > 89 Days Past Due | National Lending | SBA/USDA    
Financing Receivable, Past Due [Line Items]    
Loans and leases 2,083 7,413
Nonperforming Loans and Leases | > 89 Days Past Due | National Lending | Other commercial finance    
Financing Receivable, Past Due [Line Items]    
Loans and leases 0 0
Nonperforming Loans and Leases | > 89 Days Past Due | National Lending | Commercial finance    
Financing Receivable, Past Due [Line Items]    
Loans and leases 15,711 12,900
Nonperforming Loans and Leases | > 89 Days Past Due | National Lending | Consumer finance    
Financing Receivable, Past Due [Line Items]    
Loans and leases 3,998 826
Nonperforming Loans and Leases | > 89 Days Past Due | National Lending | Tax services    
Financing Receivable, Past Due [Line Items]    
Loans and leases 0 2,477
Nonperforming Loans and Leases | > 89 Days Past Due | National Lending | Warehouse finance    
Financing Receivable, Past Due [Line Items]    
Loans and leases $ 0 $ 0