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Interest Rate Derivatives - Cumulative Basis Adjustments for Fair Value Hedges (Parenthetical) (Details) - USD ($)
$ in Thousands
 3 Months Ended
Apr. 07, 2023
Mar. 31, 2025
Mar. 31, 2024
Dec. 31, 2029
Dec. 31, 2028
Dec. 31, 2027
Dec. 31, 2026
Dec. 31, 2025
Dec. 31, 2024
Dec. 07, 2023
Derivative [Line Items]                    
Derivative Fair Value Of Derivative Net   $ 1,500                
Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]                    
Derivative [Line Items]                    
Derivative Notional Amount $ 100,000 $ 74,600                
Derivative, Fixed Interest Rate   3.208%                
Debt Conversion, Converted Instrument, Expiration or Due Date, Year 2035                  
Interest Rate Derivatives [Member]                    
Derivative [Line Items]                    
Derivative Notional Amount   $ 78,200             $ 73,900  
Derivative Asset   2,000             3,200  
Increase (Decrease) in Fair Value of Interest Rate Fair Value Hedging Instruments   302,000 $ 632,000              
Net Derivative Assets   1,100                
Amount of designated hedging item   76,300                
Interest Rate Derivatives [Member] | Hedging [Member]                    
Derivative [Line Items]                    
Increase (Decrease) in Fair Value of Interest Rate Fair Value Hedging Instruments   267,000 $ 628,000              
Interest Rate Swap [Member]                    
Derivative [Line Items]                    
Derivative Notional Amount       $ 15,000 $ 15,000 $ 10,000 $ 5,000 $ 5,000   $ 50,000
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, at Acquisition, at Fair Value   377,000                
Interest Rate Swap [Member] | Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]                    
Derivative [Line Items]                    
Derivative, Fixed Interest Rate       3.845% 3.887% 3.973% 4.136% 4.463%    
Loans Receivable [Member]                    
Derivative [Line Items]                    
Amount of designated hedging item   132,200                
Loans Receivable [Member] | Interest Rate Derivatives [Member]                    
Derivative [Line Items]                    
Amount of designated hedging item   $ 133,400             $ 128,900