XML 60 R100.htm IDEA: XBRL DOCUMENT v2.3.0.15
Weighted Average Assumptions Used in the Option Valuation Model (Detail)
12 Months Ended
Oct. 01, 2011
Year
OptionPlan
Oct. 02, 2010
OptionPlan
Oct. 03, 2009
OptionPlan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]   
Risk-free interest rate3.20%3.50%2.00%
Expected volatility28.00%32.00%47.00%
Dividend yield1.15%1.41%1.19%
Termination rate2.50%2.50%7.50%
Exercise multiple1.401.401.39