Property and Equipment (Details 2) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Sep. 28, 2014	Sep. 27, 2015	Sep. 28, 2014	Sep. 29, 2013
Exit activities related to vacating facilities leased under long-term non-cancelable leases
Loss recorded in connection with exit activities		$ 342	$ 2,416	$ 7,188
Costs incurred and charged to expense			$ 2,458
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
Loss recorded in connection with exit activities	2,700
Write offs of prorated portions of existing deferred items previously recognized in connection with the leases	300
Costs incurred and charged to expense	$ 2,500