Acquisitions and Dispositions - Actual and Pro Forma Financial Results (Details) - Greektown Casino-Hotel - USD ($) $ in Millions	3 Months Ended
Mar. 31, 2020	Mar. 31, 2019
Actual financial results of acquiree since acquisition date
Revenues	$ 1,116.1	$ 1,366.6
Net income	$ (608.6)	$ 49.2

Business Acquisition, Pro Forma Information, Results Of Acquiree Since Acquisition Date [Abstract]

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- Definition

This element represents the amount of earnings or loss of the acquiree since the acquisition date included in the consolidated income statement for the reporting period.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (h)(1)
-URI http://asc.fasb.org/extlink&oid=79982066&loc=d3e1392-128463

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- Definition

This element represents the amount of revenue of the acquiree since the acquisition date included in the consolidated income statement for the reporting period.

+ References

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