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Changes in Shareholders Equity (Parenthetical) (USD $)
In Thousands, unless otherwise specified
9 Months Ended
Jul. 04, 2012
Jul. 06, 2011
Changes In Shareholders Equity Parenthetical    
Reclassification of investment appreciation in net earnings, tax $ (553) $ 789
Net change in unrealized gains and losses on investments, tax $ 23,915 $ 3,342