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WARRANTY (Tables)
12 Months Ended
Dec. 31, 2020
Product Warranties Disclosures [Abstract]  
Schedule of Product Warranty Liability [Table Text Block]
Changes in the warranty liability for the periods set forth below consisted of the following (amounts in thousands):
 20202019
Warranty liability, January 1$14,334 $16,328 
Provision for warranty liabilities6,853 4,965 
Warranty payments made(6,147)(6,959)
Warranty liability, December 31$15,040 $14,334