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Leases (Schedule Of Supplemental Cash Flow Information Related To Leases) (Details) - USD ($)
$ in Thousands
9 Months Ended
Sep. 30, 2020
Sep. 30, 2019
Leases [Abstract]    
Operating cash flows for operating leases $ 5,438 $ 5,004
Financing cash flows for finance leases 465 561
Operating cash flows for finance leases $ 92 $ 91