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Derivative Financial Instruments - Free-Standing (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Minimum      
Derivative financial instruments      
Derivative, Floating rate   5.84%  
Maximum      
Derivative financial instruments      
Derivative, Floating rate   8.34%  
Interest rate swaps | Customer swap program      
Derivative financial instruments      
Notional Amount $ 2,500,000    
Not designated as hedging instrument | Interest rate swaps      
Derivative financial instruments      
Notional Amount 2,491,036 $ 2,753,801  
Positive fair value, derivative asset 4,818 1,204  
Negative fair value, derivative liability 5,990 521  
Net interest expense $ 0 $ 0 $ 0
Not designated as hedging instrument | Interest rate swaps | Minimum      
Derivative financial instruments      
Derivative, Floating rate 4.87%    
Fixed interest rate (as a percent) 2.39% 2.39%  
Not designated as hedging instrument | Interest rate swaps | Maximum      
Derivative financial instruments      
Derivative, Floating rate 7.55%    
Fixed interest rate (as a percent) 6.67% 5.98%  
Not designated as hedging instrument | Interest rate swaps | Customer swap program      
Derivative financial instruments      
Positive fair value, derivative asset $ 4,800 $ 1,200  
Negative fair value, derivative liability 6,000 500  
Upfront fees on the dealer swap $ 1,400 $ 1,800 $ 2,500