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WARRANTY (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended
Mar. 31, 2013
Mar. 31, 2012
Movement in Standard and Extended Product Warranty, Increase (Decrease) [Roll Forward]    
Warranty liability at January 1 $ 27,482 $ 17,659
Provision for warranty liabilities 7,946 7,773
Warranty payments made (7,625) (5,899)
Warranty liability at March 31 $ 27,803 $ 19,533
Minimum [Member]
   
Movement in Standard and Extended Product Warranty, Increase (Decrease) [Roll Forward]    
Length of Limited Warranty, Term 0 years  
Maximum [Member]
   
Movement in Standard and Extended Product Warranty, Increase (Decrease) [Roll Forward]    
Length of Limited Warranty, Term 10 years