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Recently adopted accounting standards
12 Months Ended
Sep. 01, 2011
Notes to Financial Statements [Abstract] 
Recently adopted accounting standards
Recently Adopted Accounting Standards

In June 2009, the Financial Accounting Standards Board ("FASB") issued a new accounting standard on Variable Interest Entities ("VIEs") which (1) replaces the quantitative-based risks and rewards calculation for determining whether an enterprise is the primary beneficiary in a VIE with an approach that is primarily qualitative, (2) requires ongoing assessments of whether an enterprise is the primary beneficiary of a VIE and (3) requires additional disclosures about an enterprise's involvement in a VIE.  We adopted this standard as of the beginning of 2011.  The initial adoption of this standard did not have a significant impact on our financial statements as of the adoption date.  The impact on future periods will depend on changes in the nature and composition of our VIEs.