v3.26.1
Fair Value Measurements Narrative (Details) - USD ($)
$ in Thousands
6 Months Ended
Jun. 30, 2026
Dec. 31, 2025
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
AFS, at estimated fair value $ 3,561,050 $ 3,407,859
Minimum    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Weighted average annual constant prepayment rate 7.40%  
Weighted average discount rate 8.60%  
Fair Value, Recurring [Member]    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
AFS, at estimated fair value $ 3,561,050 3,407,859
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
AFS, at estimated fair value 0 0
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
AFS, at estimated fair value 3,561,050 3,407,859
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
AFS, at estimated fair value 0 0
Fair Value, Recurring [Member] | Financial Institutions Subordinated Debt [Member] | Fair Value, Inputs, Level 2 [Member]    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
AFS, at estimated fair value 200,100 207,500
Fair Value, Recurring [Member] | Other Corporate Debt [Member] | Fair Value, Inputs, Level 2 [Member]    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
AFS, at estimated fair value 7,500 7,400
Fair Value, Recurring [Member] | Foreign Exchange Contract [Member] | Fair Value, Inputs, Level 1 [Member]    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Other financial liabilities 500 700
Foreign Exchange Contract [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Other financial assets 600 900
Forward Commitments [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Other financial assets 1,000 600
Other financial liabilities 0 200
Interest Rate Swap [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Other financial assets 113,500 128,300
Other financial liabilities $ 171,800 $ 170,100