Restructuring (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Dec. 27, 2013	Dec. 28, 2012
Restructuring Reserve [Roll Forward]
Restructuring charges	$ 3,215	$ 0
Cash payments	(892)
Non-cash charges	(10)
Restructuring reserve, ending balance	2,313
Restructuring Charges [Member]
Restructuring Reserve [Roll Forward]
Restructuring charges	$ 3,200
2014 Restructuring Plan [Member]
Restructuring Cost and Reserve [Line Items]
Number of positions eliminated	50