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Debt (Schedule of Mandatory Principal Payment According to Schedule of Remaining Outstanding Balance Due upon Maturity) (Details) - New Term Loan
$ in Thousands
Sep. 30, 2017
USD ($)
Debt Instrument [Line Items]  
Total payments remaining for 2017 $ 375
Total payments for 2018 1,500
Total payments for 2019 3,750
Total payments for 2020 6,750
Total mandatory payments $ 12,375