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) - Level 3 - Weighted Average	Sep. 30, 2018
Discounted cash flow | Mortgage Servicing Rights | Constant Prepayment Rate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Residential mortgage servicing rights	0.1219
Discounted cash flow | Mortgage Servicing Rights | Discount Rate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Residential mortgage servicing rights	0.0970
Discounted cash flow | Junior Subordinated Debentures | Credit Spread
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Junior subordinated debentures	0.0497
Internal Pricing Model | Interest Rate Lock Commitments | Pull-through rate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Interest rate lock commitment	0.9002