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Leases (Schedule Of Minimum Lease Payments For Finance, Operating, And Sublease Income Leases) (Details) - USD ($) $ in Thousands | Dec. 31, 2020 | Dec. 31, 2019
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Leases [Abstract] |  |
Finance Leases, 2021 | $ 719 |
Finance Leases, 2022 | 670 |
Finance Leases, 2023 | 669 |
Finance Leases, 2024 | 666 |
Finance Leases, 2025 | 647 |
Finance Leases, Thereafter | 3,138 |
Finance Leases, Total minimum lease payments | 6,509 |
Finance Leases, Less amount representing interest | 595 |
Finance Leases, Present value of net minimum lease payments | 5,914 | $ 6,012
Finance Leases, Less current maturities | 614 | 597
Finance lease obligations, less current maturities | 5,300 | 5,415
Operating Leases, 2021 | 6,616 |
Operating Leases, 2022 | 4,511 |
Operating Leases, 2023 | 3,007 |
Operating Leases, 2024 | 2,758 |
Operating Leases, 2025 | 1,909 |
Operating Leases, Thereafter | 3,569 |
Operating Leases, Total minimum lease payments | 22,370 |
Operating Leases, Less amount representing interest | 2,573 |
Operating Leases, Present value of net minimum lease payments | 19,797 | 23,405
Operating Leases, Less current maturities | 5,763 | 5,487
Operating Leases, Lease liabilities, less current maturities | 14,034 | $ 17,918
Sublease Income, 2021 | 905 |
Sublease Income, 2022 | 305 |
Sublease Income, Total minimum lease payments | $ 1,210 |

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