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Derivative Instruments and Hedging Activities (Fair Values of Derivative Instruments on the Balance Sheet) (Details) - USD ($)
$ in Thousands
Dec. 31, 2021
Dec. 31, 2020
Derivatives, Fair Value [Line Items]    
Asset derivatives $ 16,504 $ 20,120
Derivatives Designated as Hedging Instruments [Member]    
Derivatives, Fair Value [Line Items]    
Gross notional amount 50,000 50,000
Derivatives Designated as Hedging Instruments [Member] | Other Assets [Member]    
Derivatives, Fair Value [Line Items]    
Asset derivatives 1,559  
Derivatives Designated as Hedging Instruments [Member] | Other Liabilities [Member]    
Derivatives, Fair Value [Line Items]    
Liability derivatives 0 311
Derivatives Not Designated as Hedging Instruments [Member]    
Derivatives, Fair Value [Line Items]    
Gross notional amount 985,477 873,566
Derivatives Not Designated as Hedging Instruments [Member] | Other Assets [Member]    
Derivatives, Fair Value [Line Items]    
Asset derivatives 14,945 20,120
Derivatives Not Designated as Hedging Instruments [Member] | Other Liabilities [Member]    
Derivatives, Fair Value [Line Items]    
Liability derivatives 14,713 19,924
Cash Flow Hedge of Interest Rate Risk [Member] | Derivatives Designated as Hedging Instruments [Member]    
Derivatives, Fair Value [Line Items]    
Gross notional amount 50,000 50,000
Cash Flow Hedge of Interest Rate Risk [Member] | Derivatives Designated as Hedging Instruments [Member] | Other Assets [Member]    
Derivatives, Fair Value [Line Items]    
Asset derivatives 1,559  
Cash Flow Hedge of Interest Rate Risk [Member] | Derivatives Designated as Hedging Instruments [Member] | Other Liabilities [Member]    
Derivatives, Fair Value [Line Items]    
Liability derivatives 0 311
Cash Flow Hedge of Interest Rate Risk [Member] | Derivatives Not Designated as Hedging Instruments [Member]    
Derivatives, Fair Value [Line Items]    
Gross notional amount 0 100,000
Interest Rate Swap [Member] | Derivatives Not Designated as Hedging Instruments [Member]    
Derivatives, Fair Value [Line Items]    
Gross notional amount 853,445 631,907
Interest Rate Swap [Member] | Derivatives Not Designated as Hedging Instruments [Member] | Other Assets [Member]    
Derivatives, Fair Value [Line Items]    
Asset derivatives 14,702 19,626
Interest Rate Swap [Member] | Derivatives Not Designated as Hedging Instruments [Member] | Other Liabilities [Member]    
Derivatives, Fair Value [Line Items]    
Liability derivatives 14,708 19,837
Credit Contract [Member] | Derivatives Not Designated as Hedging Instruments [Member]    
Derivatives, Fair Value [Line Items]    
Gross notional amount 113,833 113,434
Credit Contract [Member] | Derivatives Not Designated as Hedging Instruments [Member] | Other Assets [Member]    
Derivatives, Fair Value [Line Items]    
Asset derivatives 0 23
Credit Contract [Member] | Derivatives Not Designated as Hedging Instruments [Member] | Other Liabilities [Member]    
Derivatives, Fair Value [Line Items]    
Liability derivatives 1 86
Mortgage Banking [Member] | Derivatives Not Designated as Hedging Instruments [Member]    
Derivatives, Fair Value [Line Items]    
Gross notional amount 18,199 28,225
Mortgage Banking [Member] | Derivatives Not Designated as Hedging Instruments [Member] | Other Assets [Member]    
Derivatives, Fair Value [Line Items]    
Asset derivatives 243 471
Mortgage Banking [Member] | Derivatives Not Designated as Hedging Instruments [Member] | Other Liabilities [Member]    
Derivatives, Fair Value [Line Items]    
Liability derivatives $ 4 $ 1