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Long-Term Debt (Schedule of Principal Payments of the Term Loan) (Details)
$ in Thousands
Jun. 30, 2017
USD ($)
Debt Instrument [Line Items]  
Total $ 125,000
Term Notes [Member]  
Debt Instrument [Line Items]  
2017 5,000
2018 10,000
2019 65,000
Total $ 80,000