Debt - Additional Information (Detail) - USD ($)			1 Months Ended		3 Months Ended
	Oct. 06, 2015	Dec. 21, 2012	May. 25, 2013	May. 31, 2012	Sep. 26, 2015	Sep. 27, 2014	Jun. 27, 2015
Debt Instrument [Line Items]
Debt instrument description of variable rate					At a rate equal to a margin over either (a) a Base Rate determined by reference to the higher of (1) the rate of interest published by Credit Suisse (AG), Cayman Islands Branch, as its "prime lending rate," (2) the federal funds rate plus 0.50%, and (3) one-month LIBOR rate plus 1.00% or (b) a LIBOR rate determined by reference to the service selected by Credit Suisse (AG), Cayman Islands Branch that has been nominated by the British Bankers' Association (or any successor thereto).
Net proceeds from term loan facility					$ 746,300,000
Repayments on Term Facility					1,900,000	$ 1,900,000
Long-term debt					$ 1,461,000,000		$ 1,405,200,000
Subsequent Event [Member]
Debt Instrument [Line Items]
Repayments on Term Facility	$ 223,000,000
ABL Facility [Member]
Debt Instrument [Line Items]
Credit facility, agreement date					May 23, 2008
Debt instrument description of variable rate					(a) the Base Rate (defined as the greater of (i) the Federal Funds Rate in effect on such date plus 0.5%, (ii) the Prime Rate on such day, or (iii) one month LIBOR plus 1.0%) plus a spread or (b) LIBOR plus a spread.
Credit facility, outstanding amount					$ 723,200,000		665,700,000
Letters of credit outstanding amount					97,900,000		102,500,000
Excess availability, amount					578,900,000		631,800,000
Debt amount reserve by lender					$ 23,400,000		19,700,000
Debt instrument average interest rate					1.86%
Credit facility, covenant term					(a) the greater of (i) $130.0 million and (ii) 10% of the lesser of the borrowing base and the revolving credit facility amount for five consecutive business days or (b) 7.5% of the revolving credit facility amount at any time.
Committed amount to be maintained under the covenant					$ 130,000,000
Covenant borrowing base, percentage					10.00%
Revolver commitment percentage					7.50%
ABL Facility [Member] | Minimum [Member]
Debt Instrument [Line Items]
Credit facility, commitment fee percentage					0.25%
ABL Facility [Member] | Maximum [Member]
Debt Instrument [Line Items]
Credit facility, commitment fee percentage					0.375%
ABL Facility [Member] | Federal Funds Effective Swap Rate [Member]
Debt Instrument [Line Items]
Basis spread on variable rate					0.50%
ABL Facility [Member] | London Interbank Offered Rate (LIBOR) [Member]
Debt Instrument [Line Items]
Basis spread on variable rate					1.00%
ABL Facility [Member] | Before Amendment [Member]
Debt Instrument [Line Items]
Credit facility, maximum borrowing capacity				$ 1,100,000,000
ABL Facility [Member] | Amendment [Member]
Debt Instrument [Line Items]
Credit facility, maximum borrowing capacity				$ 1,400,000,000
Credit facility, maturity period				2017-05
Term Loan Facility [Member]
Debt Instrument [Line Items]
Credit facility, agreement date					May 14, 2013
Basis spread on variable rate					1.00%
Debt instruments face amount					$ 750,000,000
Payment of dividends			$ 220,000,000
Debt instruments additional borrowings					$ 140,000,000
Debt instrument leverage ratio					5.90
Term loan facility outstanding percentage					0.25%
Unamortized discount on debt					$ 2,400,000
Amortization of original issue discount					$ 100,000	100,000
Term Loan Facility [Member] | London Interbank Offered Rate (LIBOR) [Member]
Debt Instrument [Line Items]
Debt instrument applicable margin rate					5.25%
Debt instrument floor rate					1.00%
Debt instrument applicable margin rate, decrease					0.25%
Term Loan Facility [Member] | Federal Funds Rate [Member]
Debt Instrument [Line Items]
Basis spread on variable rate					0.50%
Term Loan Facility [Member] | One Month Libor [Member]
Debt Instrument [Line Items]
Debt instrument description of variable rate					LIBOR rate plus 1.00%
Term Loan Facility [Member] | Base Rate [Member]
Debt Instrument [Line Items]
Debt instrument applicable margin rate					4.25%
Debt instrument floor rate					2.00%
Debt instrument applicable margin rate, decrease					0.25%
Term Facility [Member]
Debt Instrument [Line Items]
Credit facility, outstanding amount					$ 735,000,000
Long-term debt					732,600,000		$ 734,400,000
ABL Facility and Term Facility [Member]
Debt Instrument [Line Items]
Debt covenant restrictive amount					115,000,000
Unsecured Subordinated Promissory Note [Member]
Debt Instrument [Line Items]
Debt instruments face amount		$ 6,000,000
Amortization of original issue discount					$ 100,000	$ 100,000
Debt instruments amount, interest rate		3.50%
Debt instruments interest payment term					Quarterly
Debt instruments due date					2017-12
Initial fair value of promissory note related to acquisition		$ 4,200,000
Long-term debt					$ 5,200,000