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WARRANTY (Tables)
3 Months Ended
Mar. 31, 2013
WARRANTY COSTS [Abstract]  
Schedule of Product Warranty Liability [Table Text Block]
Changes in the warranty liability consisted of the following (amounts in thousands):
 
2013
 
2012
Warranty liability, January 1
$
27,482

 
$
17,659

Provision for warranty liabilities
7,946

 
7,773

Warranty payments made
(7,625
)
 
(5,899
)
Warranty liability, March 31
$
27,803

 
$
19,533