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Long-Term Debt - 2012 Credit Agreement - Additional Information (Detail) - USD ($)
12 Months Ended
Sep. 28, 2012
Dec. 31, 2014
Dec. 31, 2012
Line of Credit Facility [Line Items]      
Aggregate principal amount     $ 92,900,000
Maturity date of loan   Dec. 12, 2019  
2012 Credit Agreement [Member] | Term A Loan [Member]      
Line of Credit Facility [Line Items]      
Aggregate principal amount $ 1,030,000,000    
Maturity date of loan Sep. 28, 2017    
2012 Credit Agreement [Member] | Term B Loan [Member]      
Line of Credit Facility [Line Items]      
Aggregate principal amount $ 705,000,000    
Maturity date of loan Sep. 28, 2019    
2012 Credit Agreement [Member] | Two Thousand Twelve Revolving Credit Facility [Member]      
Line of Credit Facility [Line Items]      
Senior secured revolving credit facility $ 130,000,000    
Maturity date of loan Oct. 19, 2015