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Commitments and Contingencies (Future Minimum Lease Payments) (Details) $ in Millions |  | 12 Months Ended
--- | --- | ---
Mar. 01, 2019 USD ($) ft² | Dec. 31, 2022 USD ($) | Dec. 31, 2021 USD ($) | Dec. 31, 2020 USD ($)
Commitments and Contingencies Disclosure [Abstract] |  |  |  |
Finance Lease, Right-of-Use Asset, Amortization |  | $ 13.2 | $ 11.9 | $ 10.3
Finance Lease, Interest Expense |  | 0.7 | 0.5 | 0.7
Operating Lease, Cost |  | 67.7 | 62.2 | 62.7
Short-term Lease, Cost |  | 5.0 | 3.8 | 4.0
Variable Lease, Cost |  | 24.5 | 21.6 | 20.3
Lease, Cost |  | 111.1 | 100.0 | 98.0
Finance Lease, Right-of-Use Asset |  | 33.3 | 34.5 |
Right-of-use assets from operating leases |  | 219.9 | 196.1 |
Finance lease obligations |  | 11.2 | 11.3 |
Finance Lease, Liability, Noncurrent |  | 28.3 | 29.0 |
Current operating lease liabilities |  | 63.3 | 54.8 |
Long-term operating lease liabilities |  | $ 161.8 | $ 145.0 |
Finance Lease, Weighted Average Remaining Lease Term |  | 3 years 7 months 6 days | 3 years 10 months 24 days |
Operating Lease, Weighted Average Remaining Lease Term |  | 5 years 1 month 6 days | 4 years 6 months |
Finance Lease, Weighted Average Discount Rate, Percent |  | 1.92% | 1.14% |
Operating Lease, Weighted Average Discount Rate, Percent |  | 3.44% | 2.62% |
Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration] |  | Total property, plant and equipment, net | Total property, plant and equipment, net |
Finance Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration] |  | Long-term Debt and Lease Obligation, Current | Long-term Debt and Lease Obligation, Current |
Finance Lease, Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration] |  | Total long-term debt | Total long-term debt |
Operating Lease, Payments |  | $ 66.0 | $ 61.8 | 61.6
Finance Lease, Principal Payments |  | 13.6 | 12.3 | 10.8
Right-of-Use Asset Obtained in Exchange for Finance Lease Liability |  | 14.4 | 14.6 | 15.4
Right-of-Use Asset Obtained in Exchange for Operating Lease Liability |  | 98.8 | $ 61.8 | $ 67.6
Area of Leased Office Building | ft² | 192,000 |  |  |
Purchase Price of Property at End of Lease Term | $ 41.2 |  |  |
Percentage of Lease Balance as Final Payment End of Lease Term | 87.00% |  |  |
Operating Leases |  |  |  |
2023 |  | 70.0 |  |
2024 |  | 53.2 |  |
2025 |  | 36.9 |  |
2026 |  | 29.0 |  |
2027 |  | 18.9 |  |
Thereafter |  | 40.1 |  |
Total minimum lease payments |  | 248.1 |  |
Less imputed interest |  | (23.0) |  |
Present value of minimum payments |  | 225.1 |  |
Finance Leases |  |  |  |
2023 |  | 11.6 |  |
2024 |  | 8.4 |  |
2025 |  | 5.8 |  |
2026 |  | 2.5 |  |
2027 |  | 0.3 |  |
Thereafter |  | 11.7 |  |
Total minimum lease payments |  | 40.3 |  |
Less imputed interest |  | (0.8) |  |
Present value of minimum payments |  | $ 39.5 |  |

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