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Stockholders' Equity (Schedule Of Weighted Average Assumptions Used in Calculating Share-Based Performance Awards) (Details) - Performance Shares [Member]
12 Months Ended
Sep. 30, 2016
Oct. 02, 2015
Oct. 03, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Volatility of common stock 38.24% 37.51% 36.96%
Average volatility of peer companies 34.76% 28.42% 29.59%
Average correlation coefficient of peer group 0.49 0.55 0.472
Risk free interest rate 0.44% 0.12% 0.11%
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate 1.23% 0.85% 0.00%