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Income Taxes (Reconciliation of Unrecognized Tax Benefits Schedule) (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]      
Unrecognized tax benefits, beginning balance $ 3,096 $ 5,253 $ 6,184
Lapse of statute of limitations (5) (1,637) (1,236)
Additions based on tax positions related to the current year 70 342 305
Additions based on tax positions related to the current year   (862)  
Increase based on tax positions related to the prior year 579    
Unrecognized tax benefits, ending balance $ 3,740 $ 3,096 $ 5,253