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WARRANTY (Tables)
3 Months Ended
Mar. 31, 2019
Product Warranties Disclosures [Abstract]  
Schedule of Product Warranty Liability [Table Text Block] Changes in the warranty liability consisted of the following (amounts in thousands):
 
2019
 
2018
Warranty liability, January 1
$
16,327

 
$
18,612

Provision for warranty liabilities
1,714

 
1,898

Warranty payments made
(1,795
)
 
(1,336
)
Warranty liability, March 31
$
16,246

 
$
19,174