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Long-Term Debt (Tables)
9 Months Ended
Sep. 30, 2020
Debt Disclosure [Abstract]  
Schedule of Long-Term Debt
Long-term debt consists of the following:
 
(in millions)
  
September 30,

2020
    
December 31,

2019
 
Revolving credit facility
   $ 0.0      $ 60.0  
Deferred finance costs
     0.0        (1.4
  
 
 
    
 
 
 
   $ 0.0      $ 58.6