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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
Dec. 31, 2024
USD ($)
Dec. 31, 2023
USD ($)
Dec. 31, 2022
USD ($)
Dec. 31, 2021
USD ($)
Fair Value Measurement Inputs and Valuation Techniques [Line Items]        
Residential mortgage servicing rights, at fair value $ 108,358 $ 109,243 $ 185,017 $ 123,615
Asset Derivatives 108,638 38,085    
Derivative Liability 280,619 261,091    
Junior subordinated debentures, at fair value 330,895 316,440    
Residential mortgage servicing rights        
Fair Value Measurement Inputs and Valuation Techniques [Line Items]        
Residential mortgage servicing rights, at fair value 108,358 109,243    
Interest rate lock commitments, net        
Fair Value Measurement Inputs and Valuation Techniques [Line Items]        
Asset Derivatives 16      
Derivative Liability   137    
Junior subordinated debentures        
Fair Value Measurement Inputs and Valuation Techniques [Line Items]        
Junior subordinated debentures, at fair value 330,895 316,440    
Level 3        
Fair Value Measurement Inputs and Valuation Techniques [Line Items]        
Residential mortgage servicing rights, at fair value 108,358 109,243    
Junior subordinated debentures, at fair value $ 330,895 $ 316,440    
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 0.0692 0.0678    
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 0.1023 0.1025    
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 0.0577 0.0607    
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 0.0950 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 0.6085 0.2817    
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 0.1616 0.1605    
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 0.0306 0.0339    
Level 3 | Discounted cash flow | Junior subordinated debentures | Minimum | Credit spread        
Fair Value Measurement Inputs and Valuation Techniques [Line Items]        
Debt instrument, measurement input 0.0146 0.0225    
Level 3 | Discounted cash flow | Junior subordinated debentures | Maximum | Credit spread        
Fair Value Measurement Inputs and Valuation Techniques [Line Items]        
Debt instrument, measurement input 0.0415 0.0466    
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 0.8754      
Derivative Liability, Measurement Input   0.8553    
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 0.7100      
Derivative Liability, Measurement Input   0.6733    
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