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Product Warranties (Tables)
 3 Months Ended
Mar. 31, 2014
Product Warranties Disclosures [Abstract]  
Summary Of Product Warranty Activity
The following table summarizes product warranty activity recorded during the three months ended March 31, 2014 and 2013. 
 
2014
 
2013
Balance at January 1
$
14,997

 
$
10,714

Provision for warranty accrual
2,695

 
2,035

Warranty claims and other reductions
(1,932
)
 
(1,435
)
Foreign currency translation
(107
)
 
(260
)
 Balance at March 31
$
15,653

 
$
11,054