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REVENUE - Additional Information (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Disaggregation of Revenue [Line Items]      
Net sales $ 769,169 $ 734,902 $ 704,542
Minimum      
Disaggregation of Revenue [Line Items]      
Revenue, remaining performance obligation, expected timing of satisfaction, period 30 days    
Maximum      
Disaggregation of Revenue [Line Items]      
Revenue, remaining performance obligation, expected timing of satisfaction, period 90 days    
Shipping and Handling      
Disaggregation of Revenue [Line Items]      
Net sales $ 3,900 $ 3,600 $ 3,500