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Debt - Maturities and Fair Value - Narrative (Details) - Senior Secured Revolving Credit Facility [Member]
Apr. 03, 2018
Debt Instrument [Line Items]  
Percentage per annum for quarterly principal payments 1.00%
Additional principal repayment, percentage of excess cash flow, stepdown level one 25.00%
Additional principal repayment, percentage of excess cash flow, stepdown level two 0.00%
Target leverage ratio 3.50%
Maximum [Member]  
Debt Instrument [Line Items]  
Additional principal repayment, percentage of excess cash flows 50.00%