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Long-term Debt - Domestic Line of Credit (Details) - Line of Credit
Sep. 12, 2016
USD ($)
Senior Secured Credit Facility  
Debt Instrument [Line Items]  
Maximum borrowing capacity $ 100,000,000
Senior Secured Credit Facility | LIBOR  
Debt Instrument [Line Items]  
Basis spread on variable rate 7.50%
Floor interest rate 1.00%
Senior Secured Credit Facility | Base Rate  
Debt Instrument [Line Items]  
Basis spread on variable rate 6.50%
Floor interest rate 3.00%
Initial Term Loan  
Debt Instrument [Line Items]  
Fair value of amount outstanding $ 50,000,000
Delayed Draw Term Loans  
Debt Instrument [Line Items]  
Fair value of amount outstanding $ 50,000,000
Commitment fee percentage 2.75%
Quarterly loan servicing fee $ 15,000