Exchange Rates Used In Financial Statements (Detail)	6 Months Ended	12 Months Ended
Jul. 28, 2012	Jul. 30, 2011	Jan. 28, 2012
Intercompany Foreign Currency Balance [Line Items]
Income statement (average rate)	1.58	1.62	1.60
Balance sheet (period end rate)	1.58	1.64	1.57

Foreign exchange rate used to translate amounts denominated in functional currency to reporting currency.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 830

-SubTopic 30

-Section S99

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6897108&loc=SL6897125-166521

Name:	us-gaap_ForeignCurrencyExchangeRateTranslation1
Namespace Prefix:	us-gaap_
Data Type:	xbrli:pureItemType
Balance Type:	na
Period Type:	instant