Financial Instruments - Carrying Amount and Estimated Fair Value of Asset (Liability) (Details) - USD ($) $ in Millions	Dec. 31, 2022	Jan. 18, 2022	Dec. 31, 2021	Dec. 20, 2021	Dec. 31, 2020	Feb. 08, 2019
5.000% Senior Unsecured Notes Due 2029 | Unsecured Debt
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Interest rate on debt instrument (as a percent)	5.00%		5.00%	5.00%
6.875% Senior Secured Notes Due 2026 | Secured Debt
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Interest rate on debt instrument (as a percent)	6.875%	6.875%	6.875%	6.875%	6.875%	6.875%
Carrying amount | Long-term Debt
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair value disclosure of debt instrument	$ 454.0		$ 866.4
Carrying amount | Revolving facility
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair value disclosure of debt instrument	50.3		160.0
Carrying amount | Term Loan Facility
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair value disclosure of debt instrument	3,080.6		2,718.4
Fair value | Long-term Debt
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair value disclosure of debt instrument	390.9		924.5
Fair value | Revolving facility
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair value disclosure of debt instrument	49.9		162.7
Fair value | Term Loan Facility
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair value disclosure of debt instrument	$ 3,085.9		$ 2,840.7