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DEBT - Credit Facility (Details)
1 Months Ended 15 Months Ended
Sep. 30, 2020
USD ($)
Dec. 31, 2021
USD ($)
Mar. 31, 2022
Dec. 31, 2020
USD ($)
Debt Instrument [Line Items]        
Remaining borrowing capacity   $ 0   $ 0
PNC Bank, National Association | Forecast        
Debt Instrument [Line Items]        
Interest coverage ratio, minimum     3.5  
Credit Agreement | PNC Bank, National Association        
Debt Instrument [Line Items]        
Minimum required cash and investments held   $ 200,000,000    
Credit Agreement | PNC Bank, National Association | Forecast        
Debt Instrument [Line Items]        
Consolidated leverage ratio, maximum     3.5  
Line of credit | PNC Bank, National Association | Revolving credit facility        
Debt Instrument [Line Items]        
Debt instrument term 5 years      
Senior notes $ 100,000,000      
Aggregate commitment $ 200,000,000