Supplemental Guarantor Condensed Consolidating Financials - Schedule of Supplemental Condensed Consolidating Statements of Comprehensive (Loss) Income (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Dec. 29, 2012	Dec. 24, 2011
Schedule of Condensed Consolidating Statement of Comprehensive Income [Line Items]
Net income (loss)	$ 3,118	$ 20,812
Change in cumulative translation adjustment	1,969	(358)
Unrealized loss on available-for-sale security	(557)
Comprehensive income	4,530	20,454
Parent Company [Member]
Schedule of Condensed Consolidating Statement of Comprehensive Income [Line Items]
Net income (loss)	3,118	20,812
Change in cumulative translation adjustment		36
Comprehensive income	3,118	20,848
Guarantor Subsidiaries [Member]
Schedule of Condensed Consolidating Statement of Comprehensive Income [Line Items]
Net income (loss)	62,054	23,747
Change in cumulative translation adjustment	577	(188)
Unrealized loss on available-for-sale security	(557)
Comprehensive income	62,074	23,559
Non-Guarantor Subsidiaries [Member)
Schedule of Condensed Consolidating Statement of Comprehensive Income [Line Items]
Net income (loss)	12,406	1,930
Change in cumulative translation adjustment	1,392	(206)
Comprehensive income	13,798	1,724
Eliminations [Member]
Schedule of Condensed Consolidating Statement of Comprehensive Income [Line Items]
Net income (loss)	(74,460)	(25,677)
Comprehensive income	$ (74,460)	$ (25,677)