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Acquisition - Allocation of Acquired Intangible Assets and Related Estimates of Useful Lives (Detail) (USD $) In Thousands, unless otherwise specified | 1 Months Ended
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Aug. 31, 2013 | Mar. 31, 2013
Acquired Finite-Lived Intangible Assets [Line Items] |  |
Acquired intangible assets | $ 268 | $ 2,806
Current Developed Technology [Member] |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |
Acquired intangible assets |  | 2,208
Estimated useful life of finite lived intangible assets |  | 9 years
Trademarks and Trade Names [Member] |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |
Acquired intangible assets |  | $ 598
Estimated useful life of finite lived intangible assets |  | 3 years

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- Definition 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 + Details
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- Definition Amount of increase in assets, excluding financial assets, lacking physical substance with a definite life, resulting from a business combination. + References No definition available. + Details
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