v3.26.3
Loans and Allowance for Credit Losses (Schedule of Loans Modified, Aging Analysis) (Details) - USD ($)
$ in Thousands
Sep. 30, 2026
Sep. 30, 2025
Financing Receivable, Modified, Subsequent Default [Line Items]    
Financing receivable, modified, after 12 months $ 268,908 $ 339,294
Current    
Financing Receivable, Modified, Subsequent Default [Line Items]    
Financing receivable, modified, after 12 months 220,661 274,562
30 - 59 Days Past Due    
Financing Receivable, Modified, Subsequent Default [Line Items]    
Financing receivable, modified, after 12 months 9,493 25,127
60 - 89 Days Past Due    
Financing Receivable, Modified, Subsequent Default [Line Items]    
Financing receivable, modified, after 12 months 25,180 8,287
90 Days or More Past Due    
Financing Receivable, Modified, Subsequent Default [Line Items]    
Financing receivable, modified, after 12 months 13,574 31,318
CRE    
Financing Receivable, Modified, Subsequent Default [Line Items]    
Financing receivable, modified, after 12 months 95,604 206,909
CRE | Current    
Financing Receivable, Modified, Subsequent Default [Line Items]    
Financing receivable, modified, after 12 months 74,283 190,459
CRE | 30 - 59 Days Past Due    
Financing Receivable, Modified, Subsequent Default [Line Items]    
Financing receivable, modified, after 12 months 0 0
CRE | 60 - 89 Days Past Due    
Financing Receivable, Modified, Subsequent Default [Line Items]    
Financing receivable, modified, after 12 months 21,321 0
CRE | 90 Days or More Past Due    
Financing Receivable, Modified, Subsequent Default [Line Items]    
Financing receivable, modified, after 12 months 0 16,450
C&I    
Financing Receivable, Modified, Subsequent Default [Line Items]    
Financing receivable, modified, after 12 months 138,544 91,038
C&I | Current    
Financing Receivable, Modified, Subsequent Default [Line Items]    
Financing receivable, modified, after 12 months 132,594 69,692
C&I | 30 - 59 Days Past Due    
Financing Receivable, Modified, Subsequent Default [Line Items]    
Financing receivable, modified, after 12 months 737 18,500
C&I | 60 - 89 Days Past Due    
Financing Receivable, Modified, Subsequent Default [Line Items]    
Financing receivable, modified, after 12 months 1,094 1,996
C&I | 90 Days or More Past Due    
Financing Receivable, Modified, Subsequent Default [Line Items]    
Financing receivable, modified, after 12 months 4,119 850
Franchise and equipment finance    
Financing Receivable, Modified, Subsequent Default [Line Items]    
Financing receivable, modified, after 12 months 1,834  
Franchise and equipment finance | Current    
Financing Receivable, Modified, Subsequent Default [Line Items]    
Financing receivable, modified, after 12 months 1,834  
Franchise and equipment finance | 30 - 59 Days Past Due    
Financing Receivable, Modified, Subsequent Default [Line Items]    
Financing receivable, modified, after 12 months 0  
Franchise and equipment finance | 60 - 89 Days Past Due    
Financing Receivable, Modified, Subsequent Default [Line Items]    
Financing receivable, modified, after 12 months 0  
Franchise and equipment finance | 90 Days or More Past Due    
Financing Receivable, Modified, Subsequent Default [Line Items]    
Financing receivable, modified, after 12 months 0  
1-4 single family residential    
Financing Receivable, Modified, Subsequent Default [Line Items]    
Financing receivable, modified, after 12 months 4,103 204
1-4 single family residential | Current    
Financing Receivable, Modified, Subsequent Default [Line Items]    
Financing receivable, modified, after 12 months 2,658 35
1-4 single family residential | 30 - 59 Days Past Due    
Financing Receivable, Modified, Subsequent Default [Line Items]    
Financing receivable, modified, after 12 months 1,445 0
1-4 single family residential | 60 - 89 Days Past Due    
Financing Receivable, Modified, Subsequent Default [Line Items]    
Financing receivable, modified, after 12 months 0 169
1-4 single family residential | 90 Days or More Past Due    
Financing Receivable, Modified, Subsequent Default [Line Items]    
Financing receivable, modified, after 12 months 0 0
Government insured residential    
Financing Receivable, Modified, Subsequent Default [Line Items]    
Financing receivable, modified, after 12 months 28,823 41,143
Government insured residential | Current    
Financing Receivable, Modified, Subsequent Default [Line Items]    
Financing receivable, modified, after 12 months 9,292 14,376
Government insured residential | 30 - 59 Days Past Due    
Financing Receivable, Modified, Subsequent Default [Line Items]    
Financing receivable, modified, after 12 months 7,311 6,627
Government insured residential | 60 - 89 Days Past Due    
Financing Receivable, Modified, Subsequent Default [Line Items]    
Financing receivable, modified, after 12 months 2,765 6,122
Government insured residential | 90 Days or More Past Due    
Financing Receivable, Modified, Subsequent Default [Line Items]    
Financing receivable, modified, after 12 months $ 9,455 $ 14,018