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Other Noncurrent Assets - Additional Information (Detail) $ in Millions | 3 Months Ended
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Mar. 31, 2016 USD ($)
Fuhu Inc. and Sproutling Inc. |
Other Noncurrent Assets Disclosure [Line Items] |
Amortizable identifiable intangible assets acquired | $ 11.2

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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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- Details
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