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WARRANTY (Tables)
3 Months Ended
Mar. 31, 2020
Product Warranties Disclosures [Abstract]  
Schedule of Product Warranty Liability [Table Text Block]

Changes in the warranty liability during the three months ended March 31, 2020 and 2019, respectively, consisted of the following (amounts in thousands):
 
2020
 
2019
Warranty liability, January 1
$
14,334

 
$
16,327

Provision for warranty liabilities
1,962

 
1,714

Warranty payments made
(2,028
)
 
(1,795
)
Warranty liability, March 31
$
14,268

 
$
16,246