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Investments in and Advances to Unconsolidated Affiliates - Additional Information (Details) shares in Millions		1 Months Ended		3 Months Ended	9 Months Ended
	Jan. 29, 2019 USD ($)	Sep. 30, 2018	Apr. 30, 2018 USD ($) a	Sep. 30, 2019 USD ($)	Sep. 30, 2019 USD ($)	Jan. 31, 2019 shares	Dec. 31, 2018 USD ($)
Investment in Unconsolidated Affiliates
Investments in and advance to affiliates, subsidiaries, associates, and joint ventures including contributions and capitalized professional costs				$ 129,796,000	$ 129,796,000		$ 1,892,000
Receivable from partnership				2,823,000	2,823,000		327,000
Assets held for sale				605,947,000	605,947,000		155,771,000
Pompano Joint Venture
Investment in Unconsolidated Affiliates
Cash contributions in joint venture			$ 500,000
Variable interest entity, ownership percentage			50.00%
Investments in and advance to affiliates, subsidiaries, associates, and joint ventures including contributions and capitalized professional costs				1,100,000	1,100,000		$ 600,000
Pompano Joint Venture \| Maximum
Investment in Unconsolidated Affiliates
Additional contributions cap in joint venture			$ 2,000,000.0
Land \| a			200
Pompano Joint Venture \| Minimum
Investment in Unconsolidated Affiliates
Land \| a			130
Cordish \| Pompano Joint Venture
Investment in Unconsolidated Affiliates
Cash contributions in joint venture			$ 500,000
Additional contributions cap per member in joint venture			$ 1,000,000.0
William Hill
Investment in Unconsolidated Affiliates
Agreement period		25 years
Agreement effective date	Jan. 29, 2019
Percentage of equity stake						20.00%
Equity stake value in ordinary shares \| shares						13.4
Receivable from partnership				2,700,000	2,700,000
Assets held for sale				100,000	$ 100,000
Recognizing revenue on straight-line basis over a period					25 years
Recognized revenue				1,500,000	$ 3,900,000
William Hill \| Other Long Term Liabilities
Investment in Unconsolidated Affiliates
Deferred revenue				143,600,000	143,600,000
William Hill US
Investment in Unconsolidated Affiliates
Investments in and advance to affiliates, subsidiaries, associates, and joint ventures including contributions and capitalized professional costs				127,500,000	127,500,000
Fair value of initial investment	$ 128,900,000
William Hill PLC
Investment in Unconsolidated Affiliates
Agreement period		25 years
Equity stake value in ordinary shares \| shares						13.4
Fair value of restricted investments				$ 27,100,000	27,100,000
Unrealized loss					$ 200,000