VALUATION AND QUALIFYING ACCOUNTS (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Sep. 30, 2012	Oct. 02, 2011	Oct. 03, 2010
Valuation and Qualifying Accounts Disclosure [Line Items]
Charged to other accounts		$ 2,086
Allowance for Doubtful Accounts
Valuation and Qualifying Accounts Disclosure [Line Items]
Balance at beginning of period	2,149	1,978	2,302
Charged to costs and expenses	(497)	690	425
Deductions- recoveries and write-offs	(29)	(519)	(749)
Balance at end of period	1,623	2,149	1,978
Tax Valuation Allowance
Valuation and Qualifying Accounts Disclosure [Line Items]
Balance at beginning of period	16,803	37,604	53,220
Charged to costs and expenses	43,112	(22,887)	(15,616)
Charged to other accounts	151,615
Balance at end of period	$ 211,530	$ 16,803	$ 37,604