v3.26.1
LHFI and ACL, LHFI - Past Due Modifications Related to Loans Held For Investment (Details) - Troubled Debt Restructurings [Member] - USD ($)
$ in Thousands
Mar. 31, 2026
Mar. 31, 2025
Financing Receivable Modifications [Line Items]    
Post-Modification Outstanding Recorded Investment $ 32,161 $ 23,963
30 Days or More Past Due [Member]    
Financing Receivable Modifications [Line Items]    
Post-Modification Outstanding Recorded Investment 934 339
Past Due 60 to 89 Days [Member]    
Financing Receivable Modifications [Line Items]    
Post-Modification Outstanding Recorded Investment 304 85
Past Due 90 Days or More [Member]    
Financing Receivable Modifications [Line Items]    
Post-Modification Outstanding Recorded Investment 2,066 18,876
Past Due [Member]    
Financing Receivable Modifications [Line Items]    
Post-Modification Outstanding Recorded Investment 3,304 19,300
Current Loans [Member]    
Financing Receivable Modifications [Line Items]    
Post-Modification Outstanding Recorded Investment 28,857 4,663
Other Secured by 1-4 Family Residential Properties [Member] | Loans Secured by Real Estate [Member]    
Financing Receivable Modifications [Line Items]    
Post-Modification Outstanding Recorded Investment 2,871 2,972
Other Secured by 1-4 Family Residential Properties [Member] | Loans Secured by Real Estate [Member] | 30 Days or More Past Due [Member]    
Financing Receivable Modifications [Line Items]    
Post-Modification Outstanding Recorded Investment 110 339
Other Secured by 1-4 Family Residential Properties [Member] | Loans Secured by Real Estate [Member] | Past Due 60 to 89 Days [Member]    
Financing Receivable Modifications [Line Items]    
Post-Modification Outstanding Recorded Investment 43 85
Other Secured by 1-4 Family Residential Properties [Member] | Loans Secured by Real Estate [Member] | Past Due 90 Days or More [Member]    
Financing Receivable Modifications [Line Items]    
Post-Modification Outstanding Recorded Investment 58 201
Other Secured by 1-4 Family Residential Properties [Member] | Loans Secured by Real Estate [Member] | Past Due [Member]    
Financing Receivable Modifications [Line Items]    
Post-Modification Outstanding Recorded Investment 211 625
Other Secured by 1-4 Family Residential Properties [Member] | Loans Secured by Real Estate [Member] | Current Loans [Member]    
Financing Receivable Modifications [Line Items]    
Post-Modification Outstanding Recorded Investment 2,660 2,347
Secured by 1-4 Family Residential Properties [Member] | Other Loans Secured by Real Estate [Member]    
Financing Receivable Modifications [Line Items]    
Post-Modification Outstanding Recorded Investment 13,779 2,316
Secured by 1-4 Family Residential Properties [Member] | Other Loans Secured by Real Estate [Member] | 30 Days or More Past Due [Member]    
Financing Receivable Modifications [Line Items]    
Post-Modification Outstanding Recorded Investment 824 0
Secured by 1-4 Family Residential Properties [Member] | Other Loans Secured by Real Estate [Member] | Past Due 60 to 89 Days [Member]    
Financing Receivable Modifications [Line Items]    
Post-Modification Outstanding Recorded Investment 261 0
Secured by 1-4 Family Residential Properties [Member] | Other Loans Secured by Real Estate [Member] | Past Due 90 Days or More [Member]    
Financing Receivable Modifications [Line Items]    
Post-Modification Outstanding Recorded Investment 1,497 0
Secured by 1-4 Family Residential Properties [Member] | Other Loans Secured by Real Estate [Member] | Past Due [Member]    
Financing Receivable Modifications [Line Items]    
Post-Modification Outstanding Recorded Investment 2,582 0
Secured by 1-4 Family Residential Properties [Member] | Other Loans Secured by Real Estate [Member] | Current Loans [Member]    
Financing Receivable Modifications [Line Items]    
Post-Modification Outstanding Recorded Investment 11,197 2,316
Other Real Estate Secured [Member] | Loans Secured by Real Estate [Member]    
Financing Receivable Modifications [Line Items]    
Post-Modification Outstanding Recorded Investment 15,000  
Other Real Estate Secured [Member] | Loans Secured by Real Estate [Member] | 30 Days or More Past Due [Member]    
Financing Receivable Modifications [Line Items]    
Post-Modification Outstanding Recorded Investment 0  
Other Real Estate Secured [Member] | Loans Secured by Real Estate [Member] | Past Due 60 to 89 Days [Member]    
Financing Receivable Modifications [Line Items]    
Post-Modification Outstanding Recorded Investment 0  
Other Real Estate Secured [Member] | Loans Secured by Real Estate [Member] | Past Due 90 Days or More [Member]    
Financing Receivable Modifications [Line Items]    
Post-Modification Outstanding Recorded Investment 0  
Other Real Estate Secured [Member] | Loans Secured by Real Estate [Member] | Past Due [Member]    
Financing Receivable Modifications [Line Items]    
Post-Modification Outstanding Recorded Investment 0  
Other Real Estate Secured [Member] | Loans Secured by Real Estate [Member] | Current Loans [Member]    
Financing Receivable Modifications [Line Items]    
Post-Modification Outstanding Recorded Investment 15,000  
Commercial and Industrial Loans [Member]    
Financing Receivable Modifications [Line Items]    
Post-Modification Outstanding Recorded Investment 511 18,675
Commercial and Industrial Loans [Member] | 30 Days or More Past Due [Member]    
Financing Receivable Modifications [Line Items]    
Post-Modification Outstanding Recorded Investment 0 0
Commercial and Industrial Loans [Member] | Past Due 60 to 89 Days [Member]    
Financing Receivable Modifications [Line Items]    
Post-Modification Outstanding Recorded Investment 0 0
Commercial and Industrial Loans [Member] | Past Due 90 Days or More [Member]    
Financing Receivable Modifications [Line Items]    
Post-Modification Outstanding Recorded Investment 511 18,675
Commercial and Industrial Loans [Member] | Past Due [Member]    
Financing Receivable Modifications [Line Items]    
Post-Modification Outstanding Recorded Investment 511 18,675
Commercial and Industrial Loans [Member] | Current Loans [Member]    
Financing Receivable Modifications [Line Items]    
Post-Modification Outstanding Recorded Investment $ 0 $ 0