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Investments in and Advances to Unconsolidated Affiliates - Additional Information (Details) shares in Millions		1 Months Ended			3 Months Ended
	Jan. 29, 2019 USD ($)	Sep. 30, 2018	Apr. 30, 2018 USD ($)	Nov. 30, 2017 USD ($)	Mar. 31, 2019 USD ($) a room	Jan. 31, 2019 shares	Dec. 31, 2018 USD ($)
Investment in Unconsolidated Affiliates
Investments in and advance to affiliates, subsidiaries, associates, and joint ventures					$ 132,240,000		$ 1,892,000
Receivable from partnership					3,130,000		327,000
Pompano Joint Venture
Investment in Unconsolidated Affiliates
Variable interest entity, ownership percentage			50.00%
Investments in and advance to affiliates, subsidiaries, associates, and joint ventures					700,000		600,000
Initial cash contributions in joint venture			$ 250,000
Pompano Joint Venture \| Maximum
Investment in Unconsolidated Affiliates
Additional contributions cap in joint venture			2,000,000
Cordish \| Pompano Joint Venture
Investment in Unconsolidated Affiliates
Initial cash contributions in joint venture			250,000
Additional contributions cap per member in joint venture			$ 1,000,000
William Hill
Investment in Unconsolidated Affiliates
Receivable from partnership					3,100,000
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
William Hill US
Investment in Unconsolidated Affiliates
Investments in and advance to affiliates, subsidiaries, associates, and joint ventures					$ 130,300,000
Fair value of initial investment	$ 128,900,000
Recognizing revenue on straight-line basis over a period					25 years
Recognized revenue					$ 800,000
William Hill US \| Other Long Term Liabilities
Investment in Unconsolidated Affiliates
Deferred revenue					$ 128,100,000
William Hill PLC
Investment in Unconsolidated Affiliates
Agreement period		25 years
Equity stake value in ordinary shares \| shares						13.4
Recognizing revenue on straight-line basis over a period					25 years
Recognized revenue					$ 200,000
Fair value of restricted investments					24,400,000
Unrealized loss					2,800,000
William Hill PLC \| Other Long Term Liabilities
Investment in Unconsolidated Affiliates
Deferred revenue					27,100,000
Hampton Inn & Suites
Investment in Unconsolidated Affiliates
Investments in and advance to affiliates, subsidiaries, associates, and joint ventures					$ 1,200,000		1,300,000
Other Investors
Investment in Unconsolidated Affiliates
Variable interest entity, ownership percentage					42.10%
Number of new rooms developed \| room					118
Cash					$ 1,000,000
Land \| a					2.4
Cost of hotel construction					$ 16,000,000
Contribution towards partnership for proportionate share of additional construction costs				$ 600,000
Receivable from partnership					$ 100,000		$ 300,000