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Guarantees And Contractual Obligations (Tables)
 3 Months Ended
Jan. 27, 2012
Guarantees And Contractual Obligations [Abstract]  
Deferred Revenue And Warranties For Certain Products Disclosure
    Three Months Ended  
    January 27,
2012		     January 28,
2011		  
Beginning balance, October   $ 73,679     $ 74,907  
Additional net deferred revenue/accrual made during the period     7,839       3,981  
Payments made during the period     (2,104 )     (2,220 )
Ending Balance   $ 79,414     $ 76,668