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Basis of Presentation (Policies)	6 Months Ended
Basis of Presentation (Policies)	Mar. 31, 2012
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Fiscal Period, Policy	Our fiscal year ends on the Saturday closest to September 30 and our second fiscal quarters include 13 weeks of operations in each fiscal year presented. Fiscal years 2012 and 2011 each include 52 weeks.

Disclosure of accounting policy for determining an entity's fiscal year or other fiscal period. This disclosure may include identification of the fiscal period end-date, the length of the fiscal period, any reporting period lag between the entity and its subsidiaries, or equity investees. If a reporting lag exists, the closing date of the entity having a different period end is generally noted, along with an explanation of the necessity for using different closing dates. Any intervening events that materially affect the entity's financial position or results of operations are generally also disclosed.

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