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Acquisitions - Summary of Assets Acquired and Liabilities Assumed (Details) - USD ($) $ in Millions |  | 12 Months Ended
--- | --- | ---
Aug. 31, 2018 | Dec. 31, 2018 | Dec. 31, 2017
Business Acquisition [Line Items] |  |  |
Current assets | $ 1.9 |  |
Property and equipment | 57.4 |  |
Goodwill |  | $ 20.4 | $ 16.1
Intangible assets | 95.4 |  |
Current liabilities | (5.2) |  |
Debt | (54.7) |  |
Assets acquired and liabilities assumed | 115.2 |  |
Casino |  |  |
Business Acquisition [Line Items] |  |  |
Goodwill | $ 20.4 | $ 20.4 | $ 0.0

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