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Income Taxes (Classification of Net Deferred Tax Asset) (Details) - USD ($) $ in Thousands | Dec. 31, 2021 | Dec. 31, 2020
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Income Taxes [Abstract] |  |
Long-term deferred tax assets | $ 26,034 | $ 26,907
Long-term deferred tax liabilities | (10,706) | (12,935)
Net deferred tax assets (liabilities) | $ 15,328 | $ 13,972

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