Acquisition - Amounts Assigned to Identifiable Intangible Assets and Estimated Weighted Average Useful Lives (Detail) (USD $) In Thousands, unless otherwise specified	6 Months Ended	0 Months Ended
Oct. 03, 2014 Trade name [Member]	Jun. 06, 2014 NetNearU [Member]	Jun. 06, 2014 NetNearU [Member] Technology [Member]	Jun. 06, 2014 NetNearU [Member] Customer relationships [Member]	Jun. 06, 2014 NetNearU [Member] Non-compete agreements [Member]	Jun. 06, 2014 NetNearU [Member] Trade name [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Fair Value identifiable intangible assets		$ 24,310	$ 10,970	$ 10,950	$ 2,130	$ 260
Estimated weighted average life	3 years	8 years	7 years	9 years	2 years	2 years

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.

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

Name:	us-gaap_AcquiredFiniteLivedIntangibleAssetsWeightedAverageUsefulLife
Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration