Goodwill and Other Intangible Assets - Amortization of Intangibles (Details) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2012	Oct. 02, 2011
Finite-Lived Intangible Assets [Abstract]
Finite-Lived Intangible Assets, Amortization Expense	$ 3,211	$ 1,209
Finite-Lived Intangible Assets, Future Amortization Expense [Abstract]
Expected amortization, remainder of 2012	1,817
Expected amortization, 2013	7,619
Expected amortization, 2014	7,117
Expected amortization, 2015	6,990
Expected amortization, 2016	6,780
Expected amortization thereafter	22,093
Total expected amortization expense	52,416
Patents trademarks and other [Member]
Finite-Lived Intangible Assets [Abstract]
Finite-Lived Intangible Assets, Useful Life, Minimum	2
Finite-Lived Intangible Assets, Useful Life, Maximum	15
Finite-Lived Intangible Assets, Amortization Expense	1,222	947
Finite-Lived Intangible Assets, Future Amortization Expense [Abstract]
Expected amortization, remainder of 2012	592
Expected amortization, 2013	3,103
Expected amortization, 2014	2,747
Expected amortization, 2015	2,620
Expected amortization, 2016	2,410
Expected amortization thereafter	5,239
Total expected amortization expense	16,711
Customer relationships [Member]
Finite-Lived Intangible Assets [Abstract]
Finite-Lived Intangible Assets, Useful Life, Minimum	5
Finite-Lived Intangible Assets, Useful Life, Maximum	10
Finite-Lived Intangible Assets, Amortization Expense	599	0
Finite-Lived Intangible Assets, Future Amortization Expense [Abstract]
Expected amortization, remainder of 2012	568
Expected amortization, 2013	2,163
Expected amortization, 2014	2,163
Expected amortization, 2015	2,163
Expected amortization, 2016	2,163
Expected amortization thereafter	9,989
Total expected amortization expense	19,209
Developed technology [Member]
Finite-Lived Intangible Assets [Abstract]
Finite-Lived Intangible Assets, Useful Life, Minimum	5.5
Finite-Lived Intangible Assets, Useful Life, Maximum	10
Finite-Lived Intangible Assets, Amortization Expense	1,128	0
Finite-Lived Intangible Assets, Future Amortization Expense [Abstract]
Expected amortization, remainder of 2012	570
Expected amortization, 2013	2,207
Expected amortization, 2014	2,207
Expected amortization, 2015	2,207
Expected amortization, 2016	2,207
Expected amortization thereafter	6,865
Total expected amortization expense	16,263
Note issuance costs [Member]
Finite-Lived Intangible Assets [Abstract]
Finite-lived intangible assets, useful life	7
Finite-Lived Intangible Assets, Amortization Expense	262	262
Finite-Lived Intangible Assets, Future Amortization Expense [Abstract]
Expected amortization, remainder of 2012	87
Expected amortization, 2013	146
Expected amortization, 2014	0
Expected amortization, 2015	0
Expected amortization, 2016	0
Expected amortization thereafter	0
Total expected amortization expense	$ 233