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Investments (Details) (Consumer Products and Other [Member], USD $)
In Thousands, unless otherwise specified
Jul. 01, 2012
Sep. 30, 2011
Trading:    
Marketable equity securities $ 162,518 $ 262,085
Marketable debt securities 6,725 12,665
Trading Securities, Total 169,243 274,750
Held-to-maturity:    
Held-to-maturity Securities 34,998 75,888
Total short-term investments 204,241 350,638
U.S. Treasury securities [Member]
   
Held-to-maturity:    
Held-to-maturity Securities 34,747 75,638
Certificate of deposit [Member]
   
Held-to-maturity:    
Held-to-maturity Securities $ 251 $ 250