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Note 12 Unrecognized Stock Based Compensation Expense (Details) (USD $)
In Millions, unless otherwise specified
 3 Months Ended
Dec. 27, 2014
Employee stock options  
Unrecognized Compensation Cost and Weighted Average Period [Line Items]  
Unrecognized compensation expense $ 12.6us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember
Weighted average period of recognition (years) 2 years 0 months 0 days
Restricted stock units  
Unrecognized Compensation Cost and Weighted Average Period [Line Items]  
Unrecognized compensation expense 20.4us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockUnitsRSUMember
Weighted average period of recognition (years) 2 years 0 months 0 days
Performance Shares  
Unrecognized Compensation Cost and Weighted Average Period [Line Items]  
Unrecognized compensation expense $ 13.1us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized
/ us-gaap_AwardTypeAxis
= us-gaap_PerformanceSharesMember