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Basis of Presentation and Summary of Significant Accounting Policies (Reconciliation of Uncertain Tax Positions) (Details)
$ in Thousands
9 Months Ended
Sep. 30, 2019
USD ($)
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]  
Uncertain tax positions, beginning balance $ 578
Additions based on tax positions related to current year 0
Reductions for tax positions of prior years (319)
Uncertain tax positions, ending balance $ 259