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Guarantees and Product Warranties (Tables)
 9 Months Ended
Sep. 30, 2012
Commitments and Contingencies Disclosure [Abstract]  
Changes in warranty liability balance
Changes in the Company’s warranty liability balance are illustrated in the following table:
 
 
2012
 
2011
Balance at January 1
 
$
63,355

 
$
78,313

Current period accruals (a)
 
45,472

 
34,894

Current period settlements
 
(39,917
)
 
(50,375
)
Balance at September 30
 
$
68,910

 
$
62,832

(a)
includes the impact of foreign exchange rate fluctuations