INCOME TAXES - Components of Deferred Tax Assets (Liabilities) (Detail) (USD $) In Thousands, unless otherwise specified	Sep. 29, 2013	Sep. 30, 2012
Income Tax Disclosure [Abstract]
Accounts receivable, net	$ 945	$ 925
Inventories	9,264	12,109
Accrued employee benefit expenses	4,230	5,230
Net operating losses	140,555	127,603
Tax credits	140,069	137,628
Accrued other expenses	6,287	7,776
Deferred equity compensation	14,845	14,111
Property and equipment, net	3,242	3,152
Other assets	9,797	17,155
Total deferred tax assets	329,234	325,689
Intangible assets	(100,050)	(101,250)
Total deferred tax liabilities	(100,050)	(101,250)
Less valuation allowance	(210,073)	(196,147)
Deferred Tax Assets (Liabilities), Net, Total	$ 19,111	$ 28,292