Schedule of Finite and Indefinite-lived Intangible Assets (Details) (USD $) In Thousands, unless otherwise specified	Mar. 29, 2014	Dec. 28, 2013
Goodwill [Line Items]
Total gross finite-lived intangible assets	$ 169,357	$ 169,194
Accumulated amortization	(30,452)	(26,515)
Total net finite-lived intangible assets	138,905	142,679
Total	164,405	168,179
Trade names
Goodwill [Line Items]
Tradenames (indefinite-lived)	25,500	25,500
Technology
Goodwill [Line Items]
Total gross finite-lived intangible assets	41,050	41,029
Customer relationships
Goodwill [Line Items]
Total gross finite-lived intangible assets	86,284	86,155
Loan acquisition costs
Goodwill [Line Items]
Total gross finite-lived intangible assets	30,067	30,067
Other intangibles, principally patents
Goodwill [Line Items]
Total gross finite-lived intangible assets	$ 11,956	$ 11,943