INCOME TAXES - Reconciliation of Income Tax Computed at the Federal Statutory Rate to Actual Tax Expenses (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Sep. 28, 2014	Sep. 29, 2013	Sep. 30, 2012
Income Tax Disclosure [Abstract]
Tax computed at federal statutory rate	$ 8,372	$ 19,622	$ (5,153)
State taxes, net of federal impact	(1,064)	(1,468)	(3,244)
Foreign income taxed at different rates	(24,667)	(20,523)	(18,207)
Tax credits	(2,757)	(5,418)	(1,096)
Stock award compensation	1,157	197	295
Unrecognized tax benefits	1,410	(392)	1,981
U.S. tax on foreign income	4,061	1,374	18,150
Income tax return to provision	(189)	(875)	(3,153)
Non-deductible permanent items	869	167	1,682
Pre-acquisition loss carryforwards	(11,414)	0	(4,043)
Effective Income Tax Reconciliation, Prior Year Adjustments On Deferred Taxes	2,931	0	0
Effective Income Tax Reconciliation, Deduction, Foreign Declared Dividends, Amount	3,642	0	0
Withholding taxes	300	700	0
Other differences, net	493	164	9
Valuation allowance	17,649	18,841	27,729
Income Tax Expense (Benefit)	$ 793	$ 12,389	$ 14,950