Summary of Total Purchase Price Allocation and Fair Value of Net Tangible and Intangible Assets Acquired (Detail) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014	Jan. 10, 2014 Bluekite Ltd [Member]	Jan. 10, 2014 Bluekite Ltd [Member] Developed Technology Rights [Member]
Business Acquisition [Line Items]
Developed technology			$ 5,700
Net tangible assets acquired		154
Goodwill	9,032	9,032
Total purchase price		$ 14,886

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

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Amount recognized for assets, including goodwill, in excess of (less than) the aggregate liabilities assumed.

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Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Amount recognized as of the acquisition date for the identifiable tangible assets acquired in excess of (less than) the aggregate liabilities assumed.

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