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DEBT - Narrative (Details)
1 Months Ended 3 Months Ended
Oct. 31, 2020
USD ($)
Mar. 31, 2021
EUR (€)
tranche
Mar. 31, 2021
USD ($)
Dec. 31, 2020
EUR (€)
Dec. 31, 2020
USD ($)
Line of Credit Facility [Line Items]          
Short-term borrowing     $ 1,036,000   $ 52,200,000
Commercial Paper          
Line of Credit Facility [Line Items]          
Short-term borrowing, maximum amount outstanding during period $ 30,000,000        
Short-term borrowing     0   0
5-year revolving credit facility maturing in July 2022          
Line of Credit Facility [Line Items]          
Number of tranches | tranche   2      
Line of credit facility, Maximum borrowing capacity   € 150,000,000 300,000,000    
Long-term line of credit   € 0 0 € 0 $ 52,000,000.0
Compensating balance, amount     $ 0