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

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Amount of other assets expected to be realized or consumed after one year or the normal operating cycle, if longer, acquired at the acquisition date.

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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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Allocation of Purchase Price of Assets Acquired and Liabilities Assumed, Tumblr (Detail) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2013 Tumblr	Jun. 19, 2013 Tumblr	Jun. 19, 2013 Customer Contracts and Related Relationships Tumblr	Jun. 19, 2013 Developed Technology Tumblr	Jun. 19, 2013 Trade Name Tumblr
Business Acquisition [Line Items]
Cash and marketable securities acquired					$ 16,587
Other tangible assets acquired					73,780
Amortizable intangible assets				263,000		182,400	23,700	56,500
Goodwill	4,679,648	3,826,749	3,900,752	751,765	751,765
Total assets acquired					1,104,732
Liabilities assumed					(114,521)
Total					$ 990,211