Legal Settlement (Detail) (USD $) In Thousands, unless otherwise specified	1 Months Ended	3 Months Ended
Feb. 28, 2014	Jul. 31, 2013	Mar. 29, 2014
Litigation Settlement [Abstract]
Litigation settlement, amount		$ 29,500	$ 6,600
Litigation settlement, additional contingent amount	$ 6,600

Amount of judgment or settlement awarded to (against) the entity in respect of litigation.

No definition available.

Name:	us-gaap_LitigationSettlementAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration