Organization and Significant Accounting Policies - Summary of Intangible Asset Activity (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013
Gross Carrying Amount	16,266	$ 9,037
Accumulated Amortization	(5,802)	(4,732)
Net Carrying Amount	10,464us-gaap_FiniteLivedIntangibleAssetsNet	4,305us-gaap_FiniteLivedIntangibleAssetsNet
Customer relationships
Gross Carrying Amount	5,087	4,567
Accumulated Amortization	(2,690)	(2,541)
Net Carrying Amount	2,397	2,026
Trademarks and tradenames
Gross Carrying Amount	441	351
Accumulated Amortization	(293)	(219)
Net Carrying Amount	148	132
Patent assets
Gross Carrying Amount	2,764	2,388
Accumulated Amortization	(987)	(822)
Net Carrying Amount	1,777	1,566
Acquired technologies
Gross Carrying Amount	7,974	1,731
Accumulated Amortization	(1,832)	(1,150)
Net Carrying Amount	6,142	$ 581
Minimum \| Customer relationships
Amortization Period	4 years
Minimum \| Trademarks and tradenames
Amortization Period	4 years
Minimum \| Patent assets
Amortization Period	1 year
Minimum \| Acquired technologies
Amortization Period	5 years
Maximum \| Customer relationships
Amortization Period	15 years
Maximum \| Trademarks and tradenames
Amortization Period	8 years
Maximum \| Patent assets
Amortization Period	15 years
Maximum \| Acquired technologies
Amortization Period	8 years

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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+ References

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