The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

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Goodwill And Identified Intangible Assets - Identified Intangible Assets (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016	Dec. 31, 2016
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross	$ 679,221		$ 679,221		$ 678,269
Accumulated Amortization	(224,020)		(224,020)		(139,546)
Net	455,201		455,201		538,723
Intangible assets, gross	681,425		681,425		681,425
Intangible assets, net	457,405		457,405		541,879
Amortization expense	27,769	$ 6,052	84,475	$ 18,126
In-process research and development (IPR&D)
Finite-Lived Intangible Assets [Line Items]
Indefinite-lived intangible assets	2,204		2,204		3,156
Acquired Patents Core Technology
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross	140,744		140,744		140,744
Accumulated Amortization	(109,466)		(109,466)		(96,896)
Net	31,278		$ 31,278		43,848
Acquired Patents Core Technology \| Minimum
Finite-Lived Intangible Assets [Line Items]
Average Life (Years)			3 years
Acquired Patents Core Technology \| Maximum
Finite-Lived Intangible Assets [Line Items]
Average Life (Years)			15 years
Existing Technology
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross	204,394		$ 204,394		203,442
Accumulated Amortization	(52,952)		(52,952)		(27,315)
Net	151,442		$ 151,442		176,127
Existing Technology \| Minimum
Finite-Lived Intangible Assets [Line Items]
Average Life (Years)			5 years
Existing Technology \| Maximum
Finite-Lived Intangible Assets [Line Items]
Average Life (Years)			10 years
Customer contracts and related relationships
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross	291,769		$ 291,769		291,769
Accumulated Amortization	(54,876)		(54,876)		(14,011)
Net	236,893		$ 236,893		277,758
Customer contracts and related relationships \| Minimum
Finite-Lived Intangible Assets [Line Items]
Average Life (Years)			3 years
Customer contracts and related relationships \| Maximum
Finite-Lived Intangible Assets [Line Items]
Average Life (Years)			9 years
Trademarks/trade name
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross	40,083		$ 40,083		40,083
Accumulated Amortization	(4,867)		(4,867)		(1,138)
Net	35,216		$ 35,216		38,945
Trademarks/trade name \| Minimum
Finite-Lived Intangible Assets [Line Items]
Average Life (Years)			4 years
Trademarks/trade name \| Maximum
Finite-Lived Intangible Assets [Line Items]
Average Life (Years)			10 years
Noncompete agreements
Finite-Lived Intangible Assets [Line Items]
Average Life (Years)			1 year
Finite-lived intangible assets, gross	2,231		$ 2,231		2,231
Accumulated Amortization	(1,859)		(1,859)		(186)
Net	$ 372		$ 372		$ 2,045