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Income Taxes (Unrecognized Tax Benefits) (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]      
Balance $ 391 $ 628 $ 515
Additions based on tax positions related to prior years 1,586 26 208
Settlements 0 (100) 0
Expirations of the statute of limitations (330) (163) (95)
Balance $ 1,647 $ 391 $ 628