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Goodwill and Other Intangible Assets (Narrative) (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Jun. 30, 2021
Jun. 30, 2020
Dec. 31, 2020
Goodwill And Intangible Assets Disclosure [Abstract]          
Carrying amount of goodwill $ 66,673   $ 66,673   $ 66,062
Amortization expense during the year $ 266 $ 287 $ 537 $ 581