v3.26.1
FHLB Advances, Other Borrowings and Subordinated Notes - Narrative (Details)
$ in Thousands, $ in Millions
3 Months Ended
Mar. 31, 2026
USD ($)
Dec. 31, 2025
USD ($)
Dec. 15, 2025
CAD ($)
Dec. 14, 2025
CAD ($)
Mar. 31, 2025
USD ($)
Dec. 31, 2019
Debt Instrument [Line Items]            
Secured borrowings $ 340,647 $ 422,107     $ 337,065  
Outstanding subordinated notes 298,717 298,636     298,360  
Secured Debt            
Debt Instrument [Line Items]            
Secured borrowings 13,700 14,100     17,500  
Revolving Credit Facility            
Debt Instrument [Line Items]            
Amount outstanding 0          
Receivables Purchase Agreement | Secured Debt            
Debt Instrument [Line Items]            
Borrowing capacity     $ 580 $ 650    
Secured borrowings $ 327,000 $ 408,000     $ 319,600  
Basis spread on variable rate 0.775%          
4.85% subordinated notes maturing in June 2029 | Subordinated Debt            
Debt Instrument [Line Items]            
Stated interest rate           4.85%