Fair Value Accounting and Measurement (IRL Quantitative Information About Level 3 Fair Value Measurements) (Details) - Interest Rate Lock Commitments $ in Thousands	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)
Measurement input pull through rate member | Valuation technique internal pricing model member | Minimum | Fair Value, Inputs, Level 3
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Interest rate derivative asset, Measurement Input	0.8022	0.7543
Measurement input pull through rate member | Valuation technique internal pricing model member | Maximum | Fair Value, Inputs, Level 3
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Interest rate derivative asset, Measurement Input	0.9659	0.9663
Measurement input pull through rate member | Valuation technique internal pricing model member | Weighted Average | Fair Value, Inputs, Level 3
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Interest rate derivative asset, Measurement Input	0.8784	0.8813
Fair Value, Recurring
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Interest rate derivative assets, at fair value	$ 356	$ 1,096
Fair Value, Recurring | Fair Value, Inputs, Level 3
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Interest rate derivative assets, at fair value	$ 356	$ 1,096