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Leases - Narrative (Details) - USD ($) $ in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Jan. 01, 2019
Segment Reporting Information [Line Items] |  |  |
Operating lease assets | $ 209.9 | $ 220.1 |
Operating liabilities | 229.1 |  |
Right-of-use asset impairment charge | 2.0 | 1.4 |
ASU 2016-02 |  |  |
Segment Reporting Information [Line Items] |  |  |
Operating lease assets |  |  | $ 222.6
Operating liabilities |  |  | 236.7
ASU 2016-02 | Retained Earnings |  |  |
Segment Reporting Information [Line Items] |  |  |
Cumulative effect adjustments to retained earnings |  |  | $ 6.1
U.K. |  |  |
Segment Reporting Information [Line Items] |  |  |
Operating lease assets | 89.6 | 100.1 |
Right-of-use asset impairment charge | 1.8 | 1.4 |
Brazil |  |  |
Segment Reporting Information [Line Items] |  |  |
Operating lease assets | 2.8 | $ 5.2 |
Right-of-use asset impairment charge | $ 0.2 |  |

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