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Income Taxes (Schedule of Noncurrent Deferred Taxes and Other Liabilities) (Details) - USD ($) $ in Thousands | Dec. 31, 2020 | Dec. 31, 2019
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Income Tax Disclosure [Abstract] |  |
Deferred income taxes | $ 9,518 | $ 11,002
Other liabilities | 1,266 | 1,224
Total noncurrent deferred taxes and other liabilities | $ 10,784 | $ 12,226

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