Long Term Debt and Maturities (Parenthetical) (Detail)	9 Months Ended
	Sep. 30, 2014
Senior Secured Credit Facility Term B-2 Loan, variable, due 2017
Debt Instrument [Line Items]
Debt instrument, due date	2017
Senior Secured Credit Facility Term B-3 Loan, variable, due 2019
Debt Instrument [Line Items]
Debt instrument, due date	2019
Senior Notes, fixed 7.125%, due 2019
Debt Instrument [Line Items]
Interest rate of Senior Notes	7.125%
Debt instrument, due date	2019