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WARRANTIES - Changes in Product Warranty Obligation (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Movement in Standard Product Warranty Accrual [Roll Forward]    
Balance at beginning of period $ 4,780 $ 6,413
Warranty acquired in business combinations   15
Increases to accruals 3,165 2,996
Warranty expenditures (4,587) (4,688)
Effect of changes in exchange rates (8) 44
Balance at end of period $ 3,350 $ 4,780