INCOME TAXES - Additional Information (Detail) (USD $)	12 Months Ended
	Sep. 30, 2012	Oct. 02, 2011	Oct. 03, 2010	Sep. 27, 2009
Income Taxes [Line Items]
Provision (benefit) for income taxes	$ 14,950,000	$ (33,681,000)	$ (4,007,000)
Income (loss) before income taxes	(14,725,000)	22,049,000	55,031,000
Increase in valuation allowance	194,700,000		15,600,000
Excess tax benefit from employee stock compensation	8,200,000
Estimated increase in equity from excess tax benefit	8,200,000
Tax credits that carryforward indefinitely	4,100,000
Undistributed earnings of foreign operations	311,300,000	253,800,000
Unrecognized tax benefit, interest and penalties	2,000,000	700,000	200,000
Unrecognized tax benefit, cumulative interest and penalties	6,000,000	4,200,000		3,500,000
Unrecognized tax benefit that would impact effective tax rate	52,400,000
within the next twelve months
Income Taxes [Line Items]
Anticipated decrease in unrecognized tax benefits	10,100,000
Internal Revenue Service (IRS)
Income Taxes [Line Items]
Net operating losses carryforward, subject to expiration	209,600,000
Net operating losses carryforward expiration date	Begin expiring in 2021
Research and experimentation credits	19,200,000
Federal foreign tax credits	2,600,000
State and Local Jurisdiction
Income Taxes [Line Items]
Net operating losses carryforward, subject to expiration	140,700,000
Net operating losses carryforward expiration date	Begin expiring in 2014
Research and experimentation credits	40,500,000
Foreign Country
Income Taxes [Line Items]
Net operating losses carryforward, not subject to expiration	$ 245,600,000
Minimum | Internal Revenue Service (IRS)
Income Taxes [Line Items]
Open tax years by major tax jurisdiction	2007
Minimum | Foreign Country
Income Taxes [Line Items]
Open tax years by major tax jurisdiction	2009
Maximum | Internal Revenue Service (IRS)
Income Taxes [Line Items]
Open tax years by major tax jurisdiction	2012
Maximum | Foreign Country
Income Taxes [Line Items]
Open tax years by major tax jurisdiction	2012