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Transactions with Related Parties - Additional Information (Detail)
$ in Thousands
3 Months Ended
Jul. 20, 2016
USD ($)
Item
Apr. 01, 2017
USD ($)
Apr. 02, 2016
USD ($)
Dec. 31, 2016
USD ($)
Related Party Transaction [Line Items]        
Carrying value of debt   $ 1,080,257   $ 1,078,931
Interest expense, related party   825 $ 754  
Oaktree [Member]        
Related Party Transaction [Line Items]        
Carrying value of debt   65,839   65,813
Related party principal amount   40,000    
Oaktree [Member] | 2016 First Lien Term Loan [Member]        
Related Party Transaction [Line Items]        
Carrying value of debt   26,335   26,320
Oaktree [Member] | Senior Unsecured Notes [Member]        
Related Party Transaction [Line Items]        
Interest expense, related party   827 768  
Accrued interest   $ 801   $ 153
Oaktree [Member] | Management Services Agreement [Member]        
Related Party Transaction [Line Items]        
Required quarterly management fee $ 750      
Public offering success fee, as a multiple of annual management fee | Item 3      
Fees and out-of-pocket expenses from transaction with related party     $ 4,201  
IPO success fee $ 9,000