Goodwill and Intangible Assets (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Dec. 31, 2015
Goodwill
Carrying amount of goodwill	$ 56,006
Measurement-period adjustments	6,073
Carrying amount of goodwill	62,079
Other intangible assets:
Total intangible assets	841,560	$ 841,560
Accumulated Amortization	(26,406)	(16,504)
Net, finite-lived	738,594
Total intangible assets, net	$ 815,154	825,056
Weighted average
Other intangible assets:
Useful life (in years)	19 years 3 months 11 days
In process research and development
Other intangible assets:
Gross carrying amount, indefinite-lived	$ 39,000	39,000
Trade name
Other intangible assets:
Gross carrying amount, indefinite-lived	35,500	35,500
Service provider network
Other intangible assets:
Gross carrying amount, indefinite-lived	2,000	2,000
Developed Technology Rights
Other intangible assets:
Gross carrying amount, finite-lived	757,000	757,000
Accumulated Amortization	(26,176)	(16,360)
Net, finite-lived	$ 730,824	740,640
Developed Technology Rights | Weighted average
Other intangible assets:
Useful life (in years)	19 years 2 months 23 days
Customer relationships
Other intangible assets:
Gross carrying amount, finite-lived	$ 8,000	8,000
Accumulated Amortization	(222)	(139)
Net, finite-lived	$ 7,778	7,861
Customer relationships | Weighted average
Other intangible assets:
Useful life (in years)	23 years 9 months 29 days
Software
Other intangible assets:
Gross carrying amount, finite-lived	$ 60	60
Accumulated Amortization	(8)	(5)
Net, finite-lived	$ 52	$ 55
Software | Weighted average
Other intangible assets:
Useful life (in years)	3 years 6 months 29 days