Date the declared dividend will be paid, in CCYY-MM-DD format.

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The per share amount of a dividend declared, but not paid, as of the financial reporting date.

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The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

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The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price.

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Amount of stock repurchase plan authorized.

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Amount remaining of a stock repurchase plan authorized.

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Ratio applied to the conversion of stock split, for example but not limited to, one share converted to two or two shares converted to one.

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Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event.

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Subsequent Event (Details) $ / shares in Units, $ in Millions		8 Months Ended
	Oct. 30, 2018 USD ($) $ / shares	Jun. 30, 2019 USD ($)	Oct. 31, 2018	Sep. 30, 2018 USD ($)	Nov. 29, 2017 USD ($)	Apr. 25, 2017 USD ($)
Subsequent Event [Line Items]
Stock Repurchase Program, Authorized Amount					$ 500.0	$ 250.0
Stock Repurchase Program, Remaining Authorized Repurchase Amount				$ 78.3
Subsequent Event [Member]
Subsequent Event [Line Items]
Dividends Payable, Amount Per Share \| $ / shares	$ 1.63
Dividends Payable, Date to be Paid	Jan. 04, 2019
Dividends Payable, Date Declared	Dec. 07, 2018
Stockholders' Equity Note, Stock Split, Conversion Ratio	3
Stock Repurchase Program, Authorized Amount	$ 300.0
Scenario, Forecast [Member] \| Presque Isle Downs & Casino And Lady Luck Casino [Member]
Subsequent Event [Line Items]
Equity Method Investment, Ownership Percentage			50.10%
Payments to Acquire Businesses, Gross		$ 326.0