Receivables (Detail) - USD ($) $ in Thousands	Oct. 02, 2015	Sep. 26, 2014
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts receivable, gross	$ 838,200	$ 786,300
Allowance for doubtful accounts	(21,200)	(20,300)
Accounts receivable, net	817,000	766,000
Accounts receivable, net of allowance for doubtful accounts of $21,218 at October 2, 2015 and $20,317 at September 26, 2014	770,920	731,929
Long-term receivables	46,100	34,100
Notes Receivable
Accounts, Notes, Loans and Financing Receivable [Line Items]
Notes receivable	40,900	15,000
Short-term	10,000	0
Long-term	$ 30,900	$ 15,000