Stock-Based Awards - Assumptions Related to Valuation of Company's LTIP/Stock Options (Detail)	12 Months Ended
Feb. 23, 2013 2013 LTIP [Member]	Feb. 23, 2013 Minimum [Member]	Feb. 25, 2012 Minimum [Member] 2012 LTIP [Member]	Feb. 23, 2013 Maximum [Member]	Feb. 25, 2012 Maximum [Member] 2012 LTIP [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Dividend yield	4.10%	1.00%	0.00%	2.10%	4.60%
Volatility rate	45.80%	42.30%	47.00%	61.20%	51.60%
Risk-free interest rate	0.40%	0.40%	0.20%	0.60%	1.20%
Expected life	3 years	4 years 6 months	1 year 2 months 12 days	6 years	3 years 1 month 6 days

The range of expected volatilities used and the weighted-average expected volatility for an entity using a valuation technique with different volatilities during the contractual term.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (f)(2)(ii)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 123R

-Paragraph A240

-Subparagraph e(2)(b)

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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