Acquisitions and Purchase Accounting - Drake Acquisition (Details) (USD $) In Thousands, unless otherwise specified	Dec. 28, 2013	Dec. 29, 2012	Jan. 01, 2011	Dec. 17, 2013 as initially reported [Member]	Dec. 02, 2011 Drake [Member]	Dec. 02, 2011 Drake [Member] as initially reported [Member]	Dec. 02, 2011 Drake [Member] Measurement Period Adjustments [Member]
Business Acquisition [Line Items]
Cash					$ 427	$ 427	$ 0
Deferred tax asset				50	446	390	56
Current assets					4,032	4,245	(213)
Property, plant and equipment					1,773	1,773	0
Goodwill	687,955	526,011	477,812		15,711	15,237	474
Other intangibles					5,810	5,810	0
Other assets					9	9	0
Current liabilities					(3,280)	(3,334)	54
Long-term deferred tax liability					(2,363)	(2,395)	32
Net assets acquired and liabilities assumed					$ 22,565	$ 22,162	$ 403