Income Taxes - Provision for Income Tax Expense (Benefit) (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Sep. 28, 2013	Sep. 29, 2012	Sep. 24, 2011
Current:
Federal	$ 52	$ (1,003)	$ (5,512)
State	958	603	160
Foreign	0	35	35
Total	1,010	(365)	(5,317)
Deferred:
Federal	(2,915)	12,671	22,667
State	(687)	198	1,214
Foreign	0	312	1,031
Total	(3,602)	13,181	24,912
Total	$ (2,592)	$ 12,816	$ 19,595