Borrowings - Additional Information (Detail)		12 Months Ended
	Sep. 01, 2017 USD ($)	Sep. 29, 2017 USD ($)	Sep. 30, 2016 USD ($)	Oct. 02, 2015 USD ($)	Sep. 29, 2017 JPY (¥)
Line Of Credit Facility [Line Items]
Interest paid on borrowings		$ 9,000,000	$ 10,800,000	$ 7,100,000
Prior Credit Facility [Member]
Line Of Credit Facility [Line Items]
Repayment of credit facility	$ 363,800,000
Repayment of term loan facility	300,000,000
Repayment of revolving credit facility	63,000,000
Interest paid on borrowings	800,000
2013 Credit Agreement | 2013 Revolving Credit Facility
Line Of Credit Facility [Line Items]
Line of credit facility, commitment fee amount		$ 700,000	$ 300,000	$ 600,000
2017 Revolving Credit Facility | Revolving Credit Facility
Line Of Credit Facility [Line Items]
Credit facility term (in years)		5 years
Additional loan facility maximum commitment amount	100,000,000
Proceeds from line of credit	368,000,000
Unamortized debt issuance costs		$ 1,800,000
2017 Revolving Credit Facility | Revolving Credit Facility | Minimum
Line Of Credit Facility [Line Items]
Line of credit facility, commitment fee percentage		0.125%
2017 Revolving Credit Facility | Revolving Credit Facility | Maximum
Line Of Credit Facility [Line Items]
Line of credit facility, commitment fee percentage		0.25%
2017 Revolving Credit Facility | Revolving Credit Facility | Letter of Credit
Line Of Credit Facility [Line Items]
Loan facility, maximum borrowing capacity	50,000,000
2017 Revolving Credit Facility | Revolving Credit Facility | Swing Line Loans
Line Of Credit Facility [Line Items]
Loan facility, maximum borrowing capacity	$ 25,000,000
2017 Revolving Credit Facility | Revolving Credit Facility | Eurodollar | Minimum
Line Of Credit Facility [Line Items]
Line of credit, basis spread on variable rate (as a percent)		1.125%
2017 Revolving Credit Facility | Revolving Credit Facility | Eurodollar | Maximum
Line Of Credit Facility [Line Items]
Line of credit, basis spread on variable rate (as a percent)		1.875%
2017 Revolving Credit Facility | Revolving Credit Facility | Federal Funds Rate
Line Of Credit Facility [Line Items]
Line of credit, basis spread on variable rate (as a percent)		0.50%
2017 Revolving Credit Facility | Revolving Credit Facility | Eurodollar
Line Of Credit Facility [Line Items]
Percentage added to Eurodollar base rate before margin		1.00%
2017 Revolving Credit Facility | Revolving Credit Facility | Eurodollar | Minimum
Line Of Credit Facility [Line Items]
Line of credit, basis spread on variable rate (as a percent)		0.125%
2017 Revolving Credit Facility | Revolving Credit Facility | Eurodollar | Maximum
Line Of Credit Facility [Line Items]
Line of credit, basis spread on variable rate (as a percent)		0.875%
2013 Revolving Credit Facility | Revolving Credit Facility
Line Of Credit Facility [Line Items]
Unamortized debt issuance costs		$ 600,000
Sumitomo Credit Facility
Line Of Credit Facility [Line Items]
Loan facility, maximum borrowing capacity | ¥					¥ 3,000,000,000.0
Line of credit, basis spread on variable rate (as a percent)		0.50%
2017 Revolving Credit Facility
Line Of Credit Facility [Line Items]
Credit facility term (in years)	5 years
Loan facility, maximum borrowing capacity	$ 600,000,000
Maximum contract repayment date	12 months
2017 Revolving Credit Facility | Eurodollar
Line Of Credit Facility [Line Items]
Credit facility term (in years)	5 years
2017 Revolving Credit Facility | Base Rate [Member]
Line Of Credit Facility [Line Items]
Credit facility term (in years)	5 years