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WARRANTY (Details) - USD ($)
$ in Thousands
6 Months Ended
Jun. 30, 2016
Jun. 30, 2015
Movement in Standard and Extended Product Warranty, Increase (Decrease) [Roll Forward]    
Warranty liability at January 1 $ 23,120 $ 28,144
Provision for warranty liabilities 3,373 5,558
Warranty payments made (6,205) (7,171)
Warranty liability at September 30 $ 20,288 $ 26,531
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