Goodwill and Other Intangible Assets - Intangible Assets (Details) (USD $) In Thousands, unless otherwise specified	Mar. 30, 2014	Dec. 31, 2013
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, accumulated amortization	$ (19,479)	$ (16,941)
Finite-lived intangible assets, net	67,637	47,197
Patents trademarks and other [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross	25,827	24,327
Finite-lived intangible assets, accumulated amortization	(10,283)	(9,296)
Finite-lived intangible assets, net	15,544	15,031
Customer relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross	23,852	21,650
Finite-lived intangible assets, accumulated amortization	(4,211)	(3,547)
Finite-lived intangible assets, net	19,641	18,103
Developed technology [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross	37,437	18,161
Finite-lived intangible assets, accumulated amortization	(4,985)	(4,098)
Finite-lived intangible assets, net	$ 32,452	$ 14,063