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WARRANTY (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended
Mar. 31, 2015
Mar. 31, 2014
Sep. 30, 2013
Dec. 31, 2012
Movement in Standard and Extended Product Warranty, Increase (Decrease) [Roll Forward]        
Warranty liability at January 1 $ 28,144us-gaap_ProductWarrantyAccrual   $ 32,850us-gaap_ProductWarrantyAccrual $ 33,134us-gaap_ProductWarrantyAccrual
Provision for warranty liabilities 2,526us-gaap_ProductWarrantyAccrualWarrantiesIssued 5,320us-gaap_ProductWarrantyAccrualWarrantiesIssued    
Warranty payments made (3,914)us-gaap_ProductWarrantyAccrualPayments (5,604)us-gaap_ProductWarrantyAccrualPayments    
Warranty liability at June 30 $ 26,756us-gaap_ProductWarrantyAccrual   $ 32,850us-gaap_ProductWarrantyAccrual $ 33,134us-gaap_ProductWarrantyAccrual
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