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Long-Term Debt (Tables)
12 Months Ended
Dec. 31, 2022
Debt Disclosure [Abstract]  
Schedule of Long-term Debt
Long-term debt consisted of the following (in millions):
December 31,
20222021
Senior Secured Credit Facility:
Borrowings under $460 million revolving credit facility, due 2024$31.5 $— 
Term B loan facility, due 2025490.8 490.8 
Unsecured Senior Notes, due 2028550.0 550.0 
1,072.3 1,040.8 
Unamortized deferred loan costs(5.7)(6.9)
$1,066.6 $1,033.9