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Long-Term Debt - Senior Secured Credit Facilities (Details) - USD ($) $ in Millions | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019 | Jul. 29, 2019 | Apr. 06, 2017
Debt Instrument [Line Items] |  |  |  |  |
Payments of Debt Issuance Costs | $ 9.2 | $ 11.0 | $ 3.3 |  |
Repayments of Long-term Debt | 1,017.6 | 607.2 | 544.4 |  |
Term Loan A Due 2024 [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Secured Debt | 301.8 | 323.0 |  | $ 340.0 |
Term Loan B due 2024 [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Secured Debt | 850.0 | 1,088.8 |  |  | $ 1,550.0
Multi-Currency Credit Facility [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Line of Credit Facility, Maximum Borrowing Capacity |  |  |  | $ 925.0 |
Multi-Currency Credit Facility [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Line of Credit Facility, Remaining Borrowing Capacity | 893.2 |  |  |  |
Letters of Credit Outstanding, Amount | 31.8 |  |  |  |
Secured Debt [Member] | Term Loan A Due 2024 [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Repayments of Long-term Debt | 21.2 | 15.0 |  |  |
Secured Debt [Member] | Term Loan B due 2024 [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Repayments of Long-term Debt | 238.8 | 100.0 | 59.8 |  |
Interest Paid, Including Capitalized Interest, Operating and Investing Activities |  |  | 0.4 |  |
Write off of Deferred Debt Issuance Cost |  |  | $ 1.0 |  |
Secured Debt [Member] | Second Amendment to the Credit Amendments [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Payments of Debt Issuance Costs |  | 4.6 |  |  |
Secured Debt [Member] | Term Loan A & Term Loan B [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Write off of Deferred Debt Issuance Cost | $ 2.5 | $ 1.2 |  |  |
Unsecured Debt [Member] | 6.25% Notes due 2025 [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage | 6.25% |  |  |  |
Interest Paid, Including Capitalized Interest, Operating and Investing Activities | $ 19.4 |  |  |  |
Write off of Deferred Debt Issuance Cost | $ 9.6 |  |  |  |

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