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LONG-TERM DEBT - 2012 Notes (Details) - USD ($)
$ in Millions
Jul. 25, 2022
Dec. 31, 2023
Jul. 24, 2012
2012 Notes      
LONG-TERM DEBT      
Principal     $ 200.0
Series A      
LONG-TERM DEBT      
Principal     $ 100.0
Interest rate 4.87%   4.87%
Repayments of debt $ 100.0    
Series B      
LONG-TERM DEBT      
Principal     $ 100.0
Interest rate   5.02% 5.02%
Outstanding borrowings   $ 100.0