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Business Acquisitions - ChanTest Breakout of Definite-Lived Intangible Assets Acquired (Details) - ChanTest $ in Thousands	Oct. 29, 2014 USD ($)
Acquired Finite-Lived Intangible Assets [Line Items]
Total definite-lived intangible assets	$ 23,920
Client relationships
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets acquired	$ 19,000
Weighted average amortization life	13 years
Other intangible assets
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets acquired	$ 4,920
Weighted average amortization life	9 years

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- Definition

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+ References

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Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

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



-Publisher FASB



-Name Accounting Standards Codification



-Topic 350



-SubTopic 30



-Section 50



-Paragraph 1



-Subparagraph (a)(3)



-URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16265-109275

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The amount of identifiable intangible assets recognized as of the acquisition date.

+ References

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



-Publisher FASB



-Name Accounting Standards Codification



-Topic 805



-SubTopic 10



-Section 55



-Paragraph 37



-URI http://asc.fasb.org/extlink&oid=35744172&loc=d3e2207-128464



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-Publisher FASB



-Name Accounting Standards Codification



-Topic 805



-SubTopic 20



-Section 50



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-URI http://asc.fasb.org/extlink&oid=56956791&loc=d3e4845-128472

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Amount of increase in assets, excluding financial assets, lacking physical substance with a definite life, resulting from a business combination.

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