Schedule of Finite and Indefinite-lived Intangible Assets (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 27, 2014	Sep. 28, 2013	Sep. 27, 2014	Sep. 28, 2013	Dec. 28, 2013
Goodwill [Line Items]
Amortization of Intangible Assets	$ 1,274	$ 1,677	$ 7,773	$ 4,910
Total gross finite-lived intangible assets	175,771		175,771		160,778
Accumulated amortization	(38,930)		(38,930)		(26,291)
Total net finite-lived intangible assets	136,841		136,841		134,487
Total	171,753		171,753		169,399
Amortization of Financing Costs	1,670	607	3,970	1,821
Total	2,944	2,284	11,743	6,731
Trade names
Goodwill [Line Items]
Tradenames (indefinite-lived)	34,912		34,912		34,912
Technology
Goodwill [Line Items]
Total gross finite-lived intangible assets	63,726		63,726		63,705
Customer relationships
Goodwill [Line Items]
Total gross finite-lived intangible assets	64,339		64,339		60,078
Loan acquisition costs
Goodwill [Line Items]
Total gross finite-lived intangible assets	40,618		40,618		30,067
Other intangibles, principally patents
Goodwill [Line Items]
Total gross finite-lived intangible assets	$ 7,088		$ 7,088		$ 6,928