Acquisitions and Purchase Accounting Estimated Fair Values of Assets Acquired and Liabilities Assumed for Distributors Acquisition (Details) (USD $) In Thousands, unless otherwise specified	Sep. 27, 2014 Distributors [Member]	Sep. 28, 2013 Distributors [Member]	Sep. 08, 2014 as initially reported	Sep. 28, 2013 as initially reported Distributors [Member]	Sep. 08, 2014 Scenario, Adjustment [Member]	Sep. 28, 2013 Scenario, Adjustment [Member] Distributors [Member]
Business Acquisition [Line Items]
Current assets		$ 17,791	$ 3,767	$ 21,390	$ 0	$ (3,599)
Property, plant and equipment		1,318		1,318	0	0
Goodwill		5,308	11,255	1,709	55	3,599
Current liabilities		(804)	2,296	(804)	55	0
Net assets acquired and liabilities assumed		23,613		23,613		0
Business Combinations, Preexisting Relationship, Liability Forgiveness	(8,697)	(8,697)		(8,697)		0
Business Acquisition Cost Of Acquired Entity Consideration Paid		$ 14,916		$ 14,916		$ 0