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Fair Value Measurements - Schedule of Fair Value of Hedges (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |
Gains (losses) recorded in accumulated other comprehensive loss, net of tax | $ 14.0 |  |
Other assets/(accrued liabilities) | Interest rate swap |  |  |
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |
Derivative fair value | 0.2 | $ (0.2) |
Gains (losses) recorded in accumulated other comprehensive loss, net of tax | 0.2 | (0.2) | $ (6.9)
Other assets | Cross-currency interest rate swaps |  |  |
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |
Derivative fair value | 18.0 | $ 0.0 |
Gains (losses) recorded in accumulated other comprehensive loss, net of tax | $ 18.0 |  |

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