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Debt, Factoring and Customer Financing Arrangements - Covenants, Events of Default and Provisions (Details)
$ in Millions
12 Months Ended
Dec. 31, 2016
USD ($)
Debt Instrument [Line Items]  
Indebtedness yield increase 50.00%
Additional loan yield minimum 50.00%
Revolving Credit Facility  
Debt Instrument [Line Items]  
Ratio of debt to EBITDA 6.25
Maximum net leverage ratio 6.00
Prepayment covenant percentage 75.00%
Prepayment covenant percentage, step-down 1 50.00%
Prepayment covenant percentage, step-down 2 25.00%
Prepayment covenant percentage, step-down 3 0.00%
Unused borrowing capacity $ 488