Property and Equipment (Details 2) (USD $)	12 Months Ended			3 Months Ended
	Sep. 28, 2014	Sep. 29, 2013	Sep. 30, 2012	Sep. 28, 2014 Contract termination
Exit activities related to vacating facilities leased under long-term non-cancelable leases
Net write off of fixed assets, primarily leasehold improvements, furniture and fixtures				$ 500,000
Loss recorded in connection with exit activities	2,416,000	7,188,000	1,261,000	2,700,000
Write offs of prorated portions of existing deferred items previously recognized in connection with the leases				300,000
Costs incurred and charged to expense	$ 2,458,000	$ 4,799,000		$ 2,500,000