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Guarantees and Product Warranties (Tables)
 3 Months Ended
Mar. 31, 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)
 
15,934

 
18,411

Current period settlements
 
(14,608
)
 
(19,252
)
Balance at March 31
 
$
64,681

 
$
77,472

(a)
includes the impact of foreign exchange rate fluctuations