Company Operations and Summary of Significant Accounting Policies - Summary of Intangible Assets (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Goodwill And Intangible Assets [Line Items]
Goodwill Gross	$ 84,179	$ 84,197
Accumulated Amortization on Goodwill	(3,449)	(3,449)
Goodwill Net	$ 80,730	80,748
Weighted-Average Useful Life (years)	3 years 6 months
Accumulated Amortization	$ (50,302)	(69,036)
Total	31,833
Gross intangible asset including Goodwill	162,865	191,674
Net intangible asset including Goodwill	112,563	122,638
In Process Research and Development [Member]
Goodwill And Intangible Assets [Line Items]
Accumulated Amortization	0	0
Gross Assets	0	690
Net	$ 0	690
Purchased technology [Member]
Goodwill And Intangible Assets [Line Items]
Weighted-Average Useful Life (years)	8 years 4 months 24 days
Gross Assets	$ 52,560	51,870
Accumulated Amortization	(34,911)	(28,570)
Total	$ 17,649	23,300
Customer relationships [Member]
Goodwill And Intangible Assets [Line Items]
Weighted-Average Useful Life (years)	7 years 6 months 30 days
Gross Assets	$ 7,171	7,214
Accumulated Amortization	(4,972)	(3,978)
Total	$ 2,199	3,236
License agreements [Member]
Goodwill And Intangible Assets [Line Items]
Weighted-Average Useful Life (years)	10 years 7 months
Gross Assets	$ 5,512	34,324
Accumulated Amortization	(2,542)	(30,050)
Total	$ 2,970	4,274
Patent and trademark costs [Member]
Goodwill And Intangible Assets [Line Items]
Weighted-Average Useful Life (years)	12 years 4 months
Gross Assets	$ 10,530	10,530
Accumulated Amortization	(2,588)	(1,725)
Total	$ 7,942	8,805
Software development costs [Member]
Goodwill And Intangible Assets [Line Items]
Weighted-Average Useful Life (years)	5 years
Gross Assets	$ 2,913	2,849
Accumulated Amortization	(1,840)	(1,264)
Total	$ 1,073	$ 1,585