Allocation of Total Purchase Consideration (Detail) (USD $) In Thousands, unless otherwise specified	Apr. 05, 2012
Schedule of Business Acquisitions, Purchase Price Allocation [Line Items]
Acquired intangible assets	$ 7,130
Goodwill	8,193
Other assets (including cash of $76)	815
Current liabilities	(506)
Deferred revenue	(427)
Borrowings	(557)
Net deferred tax liabilities	(1,809)
Net Assets Acquired	12,839
Developed technology
Schedule of Business Acquisitions, Purchase Price Allocation [Line Items]
Acquired intangible assets	3,800
Customer relationships
Schedule of Business Acquisitions, Purchase Price Allocation [Line Items]
Acquired intangible assets	2,400
Non-compete agreements
Schedule of Business Acquisitions, Purchase Price Allocation [Line Items]
Acquired intangible assets	610
Domains/trademark/tradenames
Schedule of Business Acquisitions, Purchase Price Allocation [Line Items]
Acquired intangible assets	$ 320