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DEBT - Interest Rates (Details)
3 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Interest rates on debt    
Effective Interest Rate (as a percent) 3.18% 4.76%
Minimum    
Interest rates on debt    
Range of interest rates (excluding unused commitment fees) 2.61% 3.45%
Maximum    
Interest rates on debt    
Range of interest rates (excluding unused commitment fees) 3.48% 5.05%