Description of the Business and Summary of Significant Accounting Policies - New Accounting Guidance (Details) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Gaming
Segment Reporting Information [Line Items]
WAP Jackpot expense	$ 29.8	$ 38.1	$ 26.7

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

No definition available.

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