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Leases (Summary Of Lease Costs) (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2022
Sep. 30, 2021
Sep. 30, 2022
Sep. 30, 2021
Leases [Abstract]        
Amortization of property and equipment $ 127 $ 190 $ 395 $ 500
Interest expense on finance leases 22 27 69 85
Total finance lease expense 149 217 464 585
Operating lease expense 1,853 1,989 5,656 5,566
Sublease income (92) (92) (275) (308)
Total lease expense $ 1,910 $ 2,114 $ 5,845 $ 5,843