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Leases (Schedule Of Minimum Lease Payments For Finance, Operating, And Sublease Income Leases) (Details) - USD ($) $ in Thousands | Dec. 31, 2019 | Dec. 31, 2018
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Leases [Abstract] |  |
Finance Leases, 2020 | $ 712 |
Finance Leases, 2021 | 658 |
Finance Leases, 2022 | 613 |
Finance Leases, 2023 | 612 |
Finance Leases, 2024 | 610 |
Finance Leases, Thereafter | 3,467 |
Finance Leases, Total minimum lease payments | 6,672 |
Finance Leases, Less amount representing interest | 660 |
Finance Leases, Present value of net minimum lease payments | 6,012 |
Finance Leases, Less current maturities | 597 | $ 729
Finance Leases, Lease liabilities, less current maturities | 5,415 | $ 5,937
Operating Leases, 2020 | 6,585 |
Operating Leases, 2021 | 6,280 |
Operating Leases, 2022 | 3,809 |
Operating Leases, 2023 | 2,584 |
Operating Leases, 2024 | 2,570 |
Operating Leases, Thereafter | 5,027 |
Operating Leases, Total minimum lease payments | 26,855 |
Operating Leases, Less amount representing interest | 3,450 |
Operating Leases, Present value of net minimum lease payments | 23,405 |
Operating Leases, Less current maturities | 5,487 |
Operating Leases, Lease liabilities, less current maturities | 17,918 |
Sublease Income, 2020 | 905 |
Sublease Income, 2021 | 905 |
Sublease Income, 2022 | 306 |
Sublease Income, Total minimum lease payments | $ 2,116 |

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