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Summary Of Significant Accounting Policies (Tables)
 12 Months Ended
Sep. 29, 2012
Accounting Policies [Abstract]  
Schedule Of Basic And Diluted Weighted-Average Shares Outstanding
 
 
2012
 
2011
 
2010
Basic weighted-average shares outstanding
 
45,246,960

 
45,501,806

 
45,363,738

Dilutive effect of equity-based awards
 
471,364

 
545,616

 
345,282

Diluted weighted-average shares outstanding
 
45,718,324

 
46,047,422

 
45,709,020
Schedule Of Activity In The Warranty Accrual
 
 
2012
 
2011
 
2010
Warranty accrual at beginning of year
 
$
19,247

 
$
14,856

 
$
14,675

Additions from acquisitions
 
233

 
120

 
213

Warranties issued during current year
 
9,842

 
11,426

 
6,729

Adjustments to pre-existing warranties
 
(460
)
 
713

 
186

Reductions for settling warranties
 
(10,016
)
 
(7,865
)
 
(6,831
)
Foreign currency translation
 
13

 
(3
)
 
(116
)
Warranty accrual at end of year
 
$
18,859

 
$
19,247

 
$
14,856