Goodwill and Other Intangible Assets - Amortized Balance of Other Intangible Assets (Detail) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Finite-Lived Intangible Assets [Line Items]
Amortized balance of intangible assets, gross	$ 244,889	$ 90,973
Accumulated amortization	99,807	80,572
Amortized balance of intangible assets, Net	145,082us-gaap_FiniteLivedIntangibleAssetsNet	10,401us-gaap_FiniteLivedIntangibleAssetsNet
Intellectual Property [Member]
Finite-Lived Intangible Assets [Line Items]
Amortized balance of intangible assets, gross	120,780	59,910
Customer Relations [Member]
Finite-Lived Intangible Assets [Line Items]
Amortized balance of intangible assets, gross	100,831	31,063
Trade Names [Member]
Finite-Lived Intangible Assets [Line Items]
Amortized balance of intangible assets, gross	5,960
In-Process Research & Development [Member]
Finite-Lived Intangible Assets [Line Items]
Amortized balance of intangible assets, gross	6,920
Backlog [Member]
Finite-Lived Intangible Assets [Line Items]
Amortized balance of intangible assets, gross	$ 10,398

Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 30

-Section 50

-Paragraph 2

-Subparagraph (a)(1)

-URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275

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