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Acquisitions - Ocean Downs (Details) - USD ($) $ in Millions | Aug. 31, 2018 | Jul. 16, 2018 | Aug. 30, 2018 | Jan. 01, 2018
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Business Acquisition [Line Items] |  |  |  |
Online real-money sports betting and iGaming agreement term |  | 15 years |  |
Gain on Ocean Downs/Saratoga transaction | $ 54.9 |  |  |
Ocean Downs |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Equity method investment, ownership percentage | 100.00% | 50.00% |  | 50.00%
Saratoga New York And Saratoga Colorado |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Equity method investment, ownership percentage |  | 25.00% | 25.00% |
Equity method investment, amount | $ 47.8 |  |  |
Ocean Downs LLC |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Equity method investment, ownership percentage |  |  | 62.50% |
Equity method investment, amount | $ 80.5 |  |  |

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- Definition Gain on tax-efficient partial liquidation agreement for the remaining 50% ownership of the Casino at Ocean Downs and Ocean Downs Racetrack owned by Saratoga Casino Holdings LLC in exchange for the Company's 25% equity interest in SCH, which is the parent company of Saratoga Casino Hotel in Saratoga Springs, New York and Saratoga Casino Black Hawk in Black Hawk, Colorado + References No definition available. + Details
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