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Leases - Schedule of Lease-related Assets and Liabilities (Details) - USD ($) $ in Millions | Dec. 31, 2020 | Dec. 31, 2019
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Leases [Abstract] |  |
Operating lease ROU assets | $ 58.5 | $ 66.5
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List] | us-gaap:OtherAssetsNoncurrent | us-gaap:OtherAssetsNoncurrent
Operating lease current liabilities | $ 12.0 | $ 12.9
Operating Lease, Liability, Current, Statement of Financial Position [Extensible List] | us-gaap:AccruedLiabilitiesCurrent | us-gaap:AccruedLiabilitiesCurrent
Operating lease long-term liabilities | $ 46.5 | $ 53.6
Operating Lease, Liability, Noncurrent, Statement of Financial Position [Extensible List] | us-gaap:OtherLiabilitiesNoncurrent | us-gaap:OtherLiabilitiesNoncurrent
Total operating lease liabilities | $ 58.5 | $ 66.5
Finance lease, gross | 5.9 | 5.9
Finance lease accumulated depreciation | 0.5 | 0.5
Finance lease, net | $ 5.4 | $ 5.4
Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List] | us-gaap:PropertyPlantAndEquipmentNet | us-gaap:PropertyPlantAndEquipmentNet
Finance lease current liabilities | $ 0.9 | $ 0.6
Finance Lease, Liability, Current, Statement of Financial Position [Extensible List] | us-gaap:OtherLiabilitiesCurrent | us-gaap:OtherLiabilitiesCurrent
Finance lease long-term liabilities | $ 1.3 | $ 1.8
Finance Lease, Liability, Noncurrent, Statement of Financial Position [Extensible List] | us-gaap:LongTermDebtNoncurrent | us-gaap:LongTermDebtNoncurrent
Total finance lease liabilities | $ 2.2 | $ 2.4

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