Derivatives and Hedging Activities (Offset Fair Value and Notional Amount) (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Asset Derivatives
Asset Derivatives	$ 66,464	$ 109,114
Gross amounts offset on the balance sheet	0	0
Net derivative amounts presented on the balance sheet	66,464	109,114
Financial instruments - institutional counterparties	18,618	928
Cash collateral - institutional counterparties	0	0
Net derivatives not offset	47,846	108,186
Liability Derivatives
Liability Derivatives	62,472	117,597
Gross amounts offset on the balance sheet	0	0
Net derivative amounts presented on the balance sheet	62,472	117,597
Financial instruments - institutional counterparties	18,618	928
Cash Collateral	26,566	113,620
Net derivatives not offset	17,288	3,049
Derivatives Not Designated as Hedging Instrument
Asset Derivatives
Fair Value	59,186	108,616
Liability Derivatives
Fair Value	60,209	110,015
Net derivative amounts presented on the balance sheet	26,000
Derivatives Not Designated as Hedging Instrument | Credit Risk Contract
Liability Derivatives
Cash Collateral	650
Derivatives Not Designated as Hedging Instrument | Other Assets | Interest Rate Products
Asset Derivatives
Notional Amount	1,188,703	1,316,163
Fair Value	59,110	108,519
Derivatives Not Designated as Hedging Instrument | Other Assets | Credit Risk Contract
Asset Derivatives
Notional Amount	33,683	47,745
Fair Value	76	97
Derivatives Not Designated as Hedging Instrument | Other Liabilities | Interest Rate Products
Liability Derivatives
Aggregate notional amount for derivative liability	1,188,703	1,316,163
Fair Value	60,163	109,957
Derivatives Not Designated as Hedging Instrument | Other Liabilities | Credit Risk Contract
Liability Derivatives
Aggregate notional amount for derivative liability	97,213	73,954
Fair Value	46	58
Designated as Hedging Instrument
Liability Derivatives
Aggregate notional amount for derivative liability	600,000
Designated as Hedging Instrument | Other Assets | Interest Rate Products
Asset Derivatives
Notional Amount	250,000	175,000
Fair Value	7,278	498
Designated as Hedging Instrument | Other Liabilities | Interest Rate Products
Liability Derivatives
Aggregate notional amount for derivative liability	350,000	425,000
Fair Value	$ 2,263	$ 7,582