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Derivative Financial Instruments and Hedging Activities - Weighted Average Remaining Maturity, Lives, and Rates of Interest Rate Swaps (Details) - Interest Rate Swap - USD ($)
$ in Thousands
 3 Months Ended 12 Months Ended
Mar. 31, 2022
Dec. 31, 2021
Financial Institution Counterparties | Not Designated as Hedging Instrument    
Derivative [Line Items]    
Derivative, Notional Amount [1] $ 233,226 $ 214,379
Remaining Maturity 9 years 7 months 6 days 10 years 3 months 18 days
Weighted Average Receive Rate 0.93% 0.47%
Weighted Average Pay Rate 2.69% 2.42%
Financial Institution Counterparties | Cash Flow Hedging | Designated as Hedging Instrument    
Derivative [Line Items]    
Derivative, Notional Amount [1] $ 575,000 $ 605,000
Remaining Maturity 3 years 1 month 6 days 3 years 2 months 12 days
Weighted Average Receive Rate 0.54% 0.13%
Weighted Average Pay Rate 0.83% 1.10%
Customer Counterparties | Not Designated as Hedging Instrument    
Derivative [Line Items]    
Derivative, Notional Amount [1] $ 233,226 $ 214,379
Remaining Maturity 9 years 7 months 6 days 10 years 3 months 18 days
Weighted Average Receive Rate 2.69% 2.42%
Weighted Average Pay Rate 0.93% 0.47%
[1] Notional amounts, which represent the extent of involvement in the derivatives market, are used to determine the contractual cash flows required in accordance with the terms of the agreement. These amounts are typically not exchanged, significantly exceed amounts subject to credit or market risk and are not reflected in the consolidated balance sheets.