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WARRANTY (Details) (USD $)
In Thousands, unless otherwise specified
6 Months Ended 3 Months Ended
Jun. 30, 2014
Jun. 30, 2013
Jun. 30, 2014
Minimum [Member]
Jun. 30, 2014
Maximum [Member]
Movement in Standard and Extended Product Warranty, Increase (Decrease) [Roll Forward]        
Warranty liability at January 1 $ 33,134 $ 27,482    
Provision for warranty liabilities 9,422 24,078    
Warranty payments made (9,975) (17,079)    
Warranty liability at June 30 $ 32,581 $ 34,481    
Length of Limited Warranty, Term     0 years 10 years