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WARRANTY (Tables)
12 Months Ended
Dec. 31, 2016
Product Warranties Disclosures [Abstract]  
Schedule of Product Warranty Liability [Table Text Block]
Changes in the warranty liability consisted of the following (amounts in thousands):
 
2016
 
2015
Warranty liability, January 1
$
23,121

 
$
28,144

Provision for warranty liabilities
7,459

 
9,688

Warranty payments made
(12,654
)
 
(14,711
)
Warranty liability, December 31
$
17,926

 
$
23,121