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Long-Term Debt - Interest, Fees, and Principal Payments (Details) - Secured Debt
Nov. 08, 2016
Jun. 30, 2017
Line of Credit | Existing Senior Secured Credit Facility, Term Loan Facility    
Long-Term Debt    
Prepayment requirement as a percentage of excess cash flow (as a percent)   50.00%
Prepayment requirement as a percentage of excess cash flow, reduced amount (as a percent)   25.00%
Line of Credit | Existing Senior Secured Credit Facility, Term Loan Facility | Minimum    
Long-Term Debt    
Prepayment requirement as a percentage of excess cash flow, reduced amount, leverage ratio   1.50
Line of Credit | Existing Senior Secured Credit Facility, Term Loan Facility | Maximum    
Long-Term Debt    
Prepayment requirement as a percentage of excess cash flow, reduced amount, leverage ratio   2.00
Line of Credit | Existing Senior Secured Credit Facility, Term Loan Facility | Interest on Debt Instrument, Option One | London Interbank Offered Rate (LIBOR)    
Long-Term Debt    
Variable rate basis floor (as a percent) 0.75%  
Variable rate spread (as a percent) 3.75%  
Line of Credit | Existing Senior Secured Credit Facility, Term Loan Facility | Interest on Debt Instrument, Option Two    
Long-Term Debt    
Alternate base rate (as a percent) 2.75%  
Line of Credit | Existing Senior Secured Credit Facility, Term Loan Facility | Interest on Debt Instrument, Option Two | One Month Adjusted London Interbank Offer Rate    
Long-Term Debt    
Variable rate basis floor (as a percent) 1.75%  
Variable rate spread (as a percent) 1.00%  
Line of Credit | Existing Senior Secured Credit Facility, Term Loan Facility | Interest on Debt Instrument, Option Two | Federal Funds Effective Rate    
Long-Term Debt    
Variable rate spread (as a percent) 0.50%  
Revolving Credit Facility    
Long-Term Debt    
Commitment fee (as a percent) 0.50%  
Revolving Credit Facility | Existing Senior Secured Credit Facility, Revolving Credit Facility | Interest on Debt Instrument, Option One    
Long-Term Debt    
Variable rate basis floor (as a percent) 0.75%  
Revolving Credit Facility | Existing Senior Secured Credit Facility, Revolving Credit Facility | Interest on Debt Instrument, Option Two | Minimum    
Long-Term Debt    
Variable rate spread (as a percent) 2.25%  
Alternate base rate (as a percent) 3.25%  
Revolving Credit Facility | Existing Senior Secured Credit Facility, Revolving Credit Facility | Interest on Debt Instrument, Option Two | Maximum    
Long-Term Debt    
Variable rate spread (as a percent) 2.50%  
Alternate base rate (as a percent) 3.50%  
Revolving Credit Facility | Existing Senior Secured Credit Facility, Revolving Credit Facility | Interest on Debt Instrument, Option Two | One Month Adjusted London Interbank Offer Rate    
Long-Term Debt    
Variable rate spread (as a percent) 1.00%  
Revolving Credit Facility | Existing Senior Secured Credit Facility, Revolving Credit Facility | Interest on Debt Instrument, Option Two | Federal Funds Effective Rate    
Long-Term Debt    
Variable rate spread (as a percent) 0.50%