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Basis Of Presentation (Details) $ in Millions |  | 3 Months Ended | 6 Months Ended
--- | --- | --- | ---
Jan. 09, 2018 USD ($) | Jun. 30, 2018 d | Jun. 30, 2017 d | Jun. 30, 2018 USD ($) d | Jun. 30, 2017 USD ($) d
Variable Interest Entity [Line Items] |  |  |  |  |
Proceeds from Divestiture of Businesses |  |  |  | $ 970.7 | $ 0.0
Live Racing Days | d |  | 64 | 64 | 118 | 119
Big Fish Games [Member] |  |  |  |  |
Variable Interest Entity [Line Items] |  |  |  |  |
Proceeds from Divestiture of Businesses | $ 990.0 |  |  |  |

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- Definition The cash inflow associated with the amount received from the sale of a portion of the company's business, for example a segment, division, branch or other business, during the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3179-108585 + Details
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- Details
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