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Income Taxes (Schedule of Noncurrent Deferred Taxes and Other Liabilities) (Details) - USD ($)
$ in Thousands
Dec. 31, 2020
Dec. 31, 2019
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