Long-Term Debt - Schedule of Long-Term Debt (Parenthetical) (Detail)	9 Months Ended
	Sep. 30, 2014
Debt Instrument [Line Items]
Total debt average term	6 years 2 months 12 days
Total debt average rate	5.90%
Senior Secured Asset-Based Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Effective interest rate	1.70%
Senior Secured Term Loan Facilities [Member]
Debt Instrument [Line Items]
Effective interest rate	5.30%
Senior Secured First Lien Notes [Member]
Debt Instrument [Line Items]
Effective interest rate	5.80%
Other Senior Secured Debt [Member]
Debt Instrument [Line Items]
Effective interest rate	6.60%
Senior Unsecured Notes [Member]
Debt Instrument [Line Items]
Effective interest rate	7.20%