Discontinued Operations - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended
Aug. 01, 2015	Jul. 01, 2015
Discontinued Operations and Disposal Groups [Abstract]
Consideration receivable as per definitive agreement		$ 715,000
Transition services agreement, period of involvement	24 months

Period of expected continuing involvement with a discontinued operation after the disposal date, 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 205

-SubTopic 20

-Section 50

-Paragraph 4B

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=51717284&loc=SL51721665-107760

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