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Commitments And Contingencies (Tables)
 6 Months Ended
Apr. 27, 2013
Commitments and Contingencies Disclosure [Abstract]  
Schedule Of Accrued Liability For Estimated Future Warranty Costs
The following table summarizes the activity related to the Company’s accrued liability for estimated future warranty costs during the six months ended April 27, 2013, and April 28, 2012, respectively (in thousands):
 
Accrued Warranty
 
Six Months Ended
 
April 27,
2013
 
April 28,
2012
Beginning balance
$
14,453

 
$
11,298

Liabilities accrued for warranties issued during the period
2,263

 
4,640

Warranty claims paid and used during the period
(3,910
)
 
(536
)
Changes in liability for pre-existing warranties during the period
(1,607
)
 
(1,040
)
Ending balance
$
11,199

 
$
14,362