v3.25.4
Credit-related arrangements, repurchase agreements and commitments - Credit-Related Arrangements (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Offsetting Liabilities [Line Items]    
Gross $ 246,516 $ 238,012
Collateral 224,326 209,023
Net $ 22,190 28,989
Standby Letters of Credit    
Offsetting Liabilities [Line Items]    
Guarantor obligations, term period 1 year  
Letters of Guarantee    
Offsetting Liabilities [Line Items]    
Guarantor obligations, term period 4 years  
Standby letters of credit    
Offsetting Liabilities [Line Items]    
Gross $ 245,398 236,220
Collateral 223,245 207,267
Net 22,153 28,953
Letters of guarantee    
Offsetting Liabilities [Line Items]    
Gross 1,118 1,792
Collateral 1,081 1,756
Net $ 37 $ 36