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Income Taxes (Change in Valuation Allowance) (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]      
Balance at beginning of year $ 14,938 $ 11,581 $ 14,483
Additions 2,405 3,357 0
Deductions 0 0 (2,902)
Balance at end of year $ 17,343 $ 14,938 $ 11,581