Acquisition-Related Intangible Assets, Net (Details) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 26, 2015	Dec. 31, 2014	May. 21, 2013
Schedule of Acquired Intangible Asset by Major Class [Line Items]
Acquired Finite-Lived Intangible Assets, Gross	$ 85,910	$ 85,910
Acquired Finite-Lived Intangible Assets, Accumulated Amortization	(22,010)	(17,119)
Acquired Finite-Lived Intangible Assets, Net	63,900	68,791
Acquisition-related Intangible Assets, Gross	89,410	89,410
Acquisition-related Intangible Assets, Net	67,400	72,291
In Process Research and Development [Member]
Schedule of Acquired Intangible Asset by Major Class [Line Items]
Acquired Indefinite-Lived Intangible Assets (Excluding Goodwill)	3,500	3,500	$ 28,100
Developed Technology Rights [Member]
Schedule of Acquired Intangible Asset by Major Class [Line Items]
Acquired Finite-Lived Intangible Assets, Gross	67,670	67,670
Acquired Finite-Lived Intangible Assets, Accumulated Amortization	(15,189)	(11,607)
Acquired Finite-Lived Intangible Assets, Net	$ 52,481	$ 56,063
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	9 years 4 months 24 days	9 years 4 months 24 days
Customer Relationships [Member]
Schedule of Acquired Intangible Asset by Major Class [Line Items]
Acquired Finite-Lived Intangible Assets, Gross	$ 12,910	$ 12,910
Acquired Finite-Lived Intangible Assets, Accumulated Amortization	(4,442)	(3,493)
Acquired Finite-Lived Intangible Assets, Net	$ 8,468	$ 9,417
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	6 years 9 months 18 days	6 years 9 months 18 days
Trade Names [Member]
Schedule of Acquired Intangible Asset by Major Class [Line Items]
Acquired Finite-Lived Intangible Assets, Gross	$ 3,700	$ 3,700
Acquired Finite-Lived Intangible Assets, Accumulated Amortization	(877)	(670)
Acquired Finite-Lived Intangible Assets, Net	$ 2,823	$ 3,030
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	8 years 10 months 24 days	8 years 10 months 24 days
Noncompete Agreements [Member]
Schedule of Acquired Intangible Asset by Major Class [Line Items]
Acquired Finite-Lived Intangible Assets, Gross	$ 700	$ 700
Acquired Finite-Lived Intangible Assets, Accumulated Amortization	(700)	(563)
Acquired Finite-Lived Intangible Assets, Net	$ 0	$ 137
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	2 years	2 years
Other Intangible Assets [Member]
Schedule of Acquired Intangible Asset by Major Class [Line Items]
Acquired Finite-Lived Intangible Assets, Gross	$ 930	$ 930
Acquired Finite-Lived Intangible Assets, Accumulated Amortization	(802)	(786)
Acquired Finite-Lived Intangible Assets, Net	$ 128	$ 144
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	1 year 2 months 24 days	1 year 2 months 24 days