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Fair Value Measurement (Schedule Of A Description Of The Valuation Technique, Unobservable Input, And Qualitative Information For The Company's Assets And Liabilities Classified As Level 3) (Details)
$ in Thousands
Mar. 31, 2025
USD ($)
Dec. 31, 2024
USD ($)
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Residential mortgage servicing rights, at fair value $ 105,663 $ 108,358
Asset Derivatives 90,138 108,638
Derivative Liability 226,187 280,619
Junior subordinated debentures, at fair value 320,774 330,895
Residential mortgage servicing rights    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Residential mortgage servicing rights, at fair value 105,663 108,358
Interest rate lock commitments, net    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Asset Derivatives 278  
Derivative Liability   16
Junior subordinated debentures    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Junior subordinated debentures, at fair value 320,774 330,895
Level 3    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Residential mortgage servicing rights, at fair value 105,663 108,358
Junior subordinated debentures, at fair value $ 320,774 $ 330,895
Level 3 | Discounted cash flow | Residential mortgage servicing rights | Weighted Average | Constant prepayment rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Servicing asset, measurement input 0.0723 0.0692
Level 3 | Discounted cash flow | Residential mortgage servicing rights | Weighted Average | Discount rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Servicing asset, measurement input 0.1022 0.1023
Level 3 | Discounted cash flow | Residential mortgage servicing rights | Minimum | Constant prepayment rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Servicing asset, measurement input 0.0578 0.0577
Level 3 | Discounted cash flow | Residential mortgage servicing rights | Minimum | Discount rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Servicing asset, measurement input 0.0962 0.0950
Level 3 | Discounted cash flow | Residential mortgage servicing rights | Maximum | Constant prepayment rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Servicing asset, measurement input 0.6124 0.6085
Level 3 | Discounted cash flow | Residential mortgage servicing rights | Maximum | Discount rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Servicing asset, measurement input 0.1619 0.1616
Level 3 | Discounted cash flow | Junior subordinated debentures | Weighted Average | Credit spread    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Debt instrument, measurement input 0.0346 0.0306
Level 3 | Discounted cash flow | Junior subordinated debentures | Minimum | Credit spread    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Debt instrument, measurement input 0.0169 0.0146
Level 3 | Discounted cash flow | Junior subordinated debentures | Maximum | Credit spread    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Debt instrument, measurement input 0.0469 0.0415
Level 3 | Internal pricing model | Interest rate lock commitments, net | Weighted Average | Pull-through rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Derivative asset, measurement input 0.8771  
Derivative Liability, Measurement Input   0.8754
Level 3 | Internal pricing model | Interest rate lock commitments, net | Minimum | Pull-through rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Derivative asset, measurement input 0.6892  
Derivative Liability, Measurement Input   0.7100
Level 3 | Internal pricing model | Interest rate lock commitments, net | Maximum | Pull-through rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Derivative asset, measurement input 1.0000  
Derivative Liability, Measurement Input   1.0000