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Product Warranties (Tables)
 12 Months Ended
Dec. 31, 2014
Product Warranties Disclosures [Abstract]  
Schedule of Product Warranty Liability
 
Year Ended December 31,
 
2014
 
2013
 
2012
Balance, January 1
$
1,638

 
$
2,492

 
$
2,017

Accruals
2,264

 
1,097

 
2,615

Adjustments
—

 
(186
)
 
(170
)
Payments
(1,656
)
 
(1,765
)
 
(1,970
)
Balance, December 31
$
2,246

 
$
1,638

 
$
2,492