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Fair Value of Financial Instruments - Additional Information (Detail)
$ in Thousands
6 Months Ended
Mar. 28, 2012
Jul. 18, 2015
USD ($)
Distributor
Jan. 03, 2015
USD ($)
Fair Value Disclosures [Line Items]      
Number of independent distributors | Distributor   3,720  
Long term debt carrying value   $ 399,356 $ 399,304
4.375% Senior Notes      
Fair Value Disclosures [Line Items]      
Debt instrument term 10 years 10 years  
Notes bearing interest rate   4.375% 4.375%
Debt Obligations   $ 417,700  
Maximum      
Fair Value Disclosures [Line Items]      
Financing period of territories, years   10 years