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Derivative Financial Instruments (Derivative Gains (Losses) in the Consolidated Statements of Income Related to Interest Rate Swap Contracts) (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2022
Sep. 30, 2021
Sep. 30, 2022
Sep. 30, 2021
Interest rate swap | Derivative designated as a cash flow hedge        
Derivative Instruments, Gain (Loss) [Line Items]        
Effective portion recognized in other comprehensive income, interest rate swap $ 65 $ 60 $ 500 $ 215