v3.26.1
Loans and Allowance for Credit Losses on Loans - Allowance For Credit-Loan Losses (Details) - USD ($)
 3 Months Ended 12 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Dec. 31, 2025
Allowance for credit losses      
Balance, beginning of period $ 83,301,000 $ 84,386,000 $ 84,386,000
Provision for credit losses 15,893,000 9,506,000 122,904,000
Loans charged to the allowance (22,979,000) (10,507,000) (124,116,000)
Recoveries of loans previously charged-off 616,000 28,000 127,000
Balance, end of period 76,831,000 83,413,000 83,301,000
ACL Loans      
Provision for credit losses 15,299,000 7,727,000  
Provision for credit losses, ACL Loans 15,900,000 9,500,000  
Provision for credit losses, ACL-OBCE's 600,000 1,700,000  
Provision for credit losses, ACL-Guarantees 7,000 100,000  
MTG WHRA      
Allowance for credit losses      
Balance, beginning of period 4,269,000 3,816,000 3,816,000
Provision for credit losses (448,000) (69,000) 453,000
Balance, end of period 3,821,000 3,747,000 4,269,000
RES RE      
Allowance for credit losses      
Balance, beginning of period 4,672,000 5,942,000 5,942,000
Provision for credit losses (1,129,000) 203,000 (1,270,000)
Loans charged to the allowance (236,000)    
Balance, end of period 3,307,000 6,145,000 4,672,000
MF FIN      
Allowance for credit losses      
Balance, beginning of period 43,041,000 55,126,000 55,126,000
Provision for credit losses 19,627,000 8,684,000 102,147,000
Loans charged to the allowance (10,476,000) (10,394,000) (114,281,000)
Recoveries of loans previously charged-off 613,000   49,000
Balance, end of period 52,805,000 53,416,000 43,041,000
HC FIN      
Allowance for credit losses      
Balance, beginning of period 18,595,000 8,562,000 8,562,000
Provision for credit losses (647,000) 565,000 17,530,000
Loans charged to the allowance (12,267,000)   (7,497,000)
Balance, end of period 5,681,000 9,127,000 18,595,000
CML & CRE      
Allowance for credit losses      
Balance, beginning of period 11,998,000 10,293,000 10,293,000
Provision for credit losses (1,300,000) 87,000 3,965,000
Loans charged to the allowance   (113,000) (2,338,000)
Recoveries of loans previously charged-off 3,000 28,000 78,000
Balance, end of period 10,701,000 10,295,000 11,998,000
AG & AGRE      
Allowance for credit losses      
Balance, beginning of period 697,000 539,000 539,000
Provision for credit losses (227,000) 69,000 158,000
Balance, end of period 470,000 608,000 697,000
CON & MAR      
Allowance for credit losses      
Balance, beginning of period 29,000 108,000 108,000
Provision for credit losses 17,000 (33,000) (79,000)
Balance, end of period $ 46,000 $ 75,000 $ 29,000