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Guarantees and Product Warranties (Tables)
 9 Months Ended
Sep. 30, 2014
Commitments and Contingencies Disclosure [Abstract]  
Changes in warranty liability balance
Changes in the Company’s warranty liability balance are illustrated in the following table:
 
 
2014
 
2013
Balance at January 1
 
$
83,199

 
$
81,751

Current period accruals (1)
 
62,082

 
34,300

Current period settlements
 
(38,304
)
 
(40,564
)
Balance at September 30
 
$
106,977

 
$
75,487

(1) Includes the impact of foreign exchange rate fluctuations.