Basis of Presentation and Principles of Consolidation Stock Split (Details) In Thousands, unless otherwise specified	4 Months Ended
May 23, 2012 number	Jul. 25, 2012
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Stockholders' Equity Note, Stock Split, Conversion Ratio	2
Common Stock, Shares, Outstanding, before stock split (in shares)		32,598
Common Stock Outstanding, Shares, post stock split (in shares)		65,196

This item represents the conversion ratio used in the calculation of a stock split.

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

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Stock Split

-URI http://asc.fasb.org/extlink&oid=6525746

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 505

-SubTopic 10

-Section S99

-Paragraph 4

-Subparagraph (SAB TOPIC 4.C)

-URI http://asc.fasb.org/extlink&oid=6959260&loc=d3e187143-122770

Name:	us-gaap_StockholdersEquityNoteStockSplitConversionRatio
Namespace Prefix:	us-gaap_
Data Type:	xbrli:decimalItemType
Balance Type:	na
Period Type:	duration