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Product Warranties (Tables)
 9 Months Ended
Sep. 30, 2016
Product Warranties Disclosures [Abstract]  
Summary Of Product Warranty Activity
The following table summarizes product warranty activity recorded during the nine months ended September 30, 2016 and 2015.
 
 
2016
 
2015
Balance at January 1
$
28,210

 
$
19,272

Provision for warranty accrual
16,098

 
16,424

Warranty claims
(12,273
)
 
(8,627
)
Foreign currency translation
643

 
(1,059
)
 Balance at September 30
$
32,678

 
$
26,010