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LONG-TERM DEBT - Outstanding Indebtedness (Details) - USD ($)
1 Months Ended 6 Months Ended
Apr. 30, 2020
Jun. 30, 2020
Long-term debt    
Total Debt   $ 70,000,000
Stated Interest Rate (as a percent)   1.74%
Interest rate swap $ 50,000,000  
LIBOR | Interest Rate Swap    
Long-term debt    
Margin added to variable rate basis (as a percent) 0.48%  
Credit Facility    
Long-term debt    
Total Debt   $ 70,000,000
Interest rate swap $ 50,000,000  
Credit Facility | LIBOR    
Long-term debt    
Stated Interest Rate (as a percent) 0.48%  
Credit Facility | LIBOR | Minimum    
Long-term debt    
Margin added to variable rate basis (as a percent)   1.35%
Credit Facility | LIBOR | Maximum    
Long-term debt    
Margin added to variable rate basis (as a percent)   1.95%