Annual report pursuant to Section 13 and 15(d)

Concentration of Credit Risk and Significant Customers and Suppliers - Additional Information (Detail)

v3.5.0.2
Concentration of Credit Risk and Significant Customers and Suppliers - Additional Information (Detail)
12 Months Ended
Sep. 24, 2016
Sep. 26, 2015
Sep. 27, 2014
Concentration Risk [Line Items]      
Percentage of net sales 42.00% 40.00% 41.00%
Percentage of accounts receivable 41.00% 35.00%  
Percentage of accounts receivable including Company's largest customer 11.00% 12.00%  
Percentage of cost of goods sold 9.00% 11.00% 10.00%
Sales Revenue, Net [Member] | Customer Concentration Risk [Member] | Customer One [Member]      
Concentration Risk [Line Items]      
Percentage of largest customer accounted of the Company's net sales 15.00% 16.00% 17.00%
Sales Revenue, Net [Member] | Customer Concentration Risk [Member] | Customer Two [Member]      
Concentration Risk [Line Items]      
Percentage of largest customer accounted of the Company's net sales 8.00% 8.00% 7.00%
Sales Revenue, Net [Member] | Customer Concentration Risk [Member] | Customer Three [Member]      
Concentration Risk [Line Items]      
Percentage of largest customer accounted of the Company's net sales 8.00% 7.00% 8.00%