Fair Value Measurements - Assets Measured at Fair Value on a Non-Recurring Basis (Details) - USD ($)			3 Months Ended	12 Months Ended
	Oct. 01, 2019	Dec. 31, 2018	Dec. 31, 2018	Dec. 31, 2019	Dec. 31, 2018
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Goodwill, fair value	$ 161,100,000
Goodwill - total reduction in fair value recorded	(88,000,000.0)			$ (88,000,000.0)	$ 0
Property and equipment, fair value disclosure		$ 0	$ 0		0
Property and equipment - total reduction in fair value recorded		(34,300,000)	(34,300,000)		(34,300,000)
Gaming licenses
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Indefinite-lived intangible assets, fair value	290,000,000.0
Indefinite-lived intangible assets - total reduction in fair value recorded	(62,600,000)
Trademarks
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Indefinite-lived intangible assets, fair value	87,500,000
Indefinite-lived intangible assets - total reduction in fair value recorded	(20,000,000.0)
Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Goodwill, fair value	0
Property and equipment, fair value disclosure		0	0		0
Level 1 | Gaming licenses
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Indefinite-lived intangible assets, fair value	0
Level 1 | Trademarks
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Indefinite-lived intangible assets, fair value	0
Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Goodwill, fair value	0
Property and equipment, fair value disclosure		0	0		0
Level 2 | Gaming licenses
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Indefinite-lived intangible assets, fair value	0
Level 2 | Trademarks
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Indefinite-lived intangible assets, fair value	0
Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Goodwill, fair value	161,100,000
Property and equipment, fair value disclosure		$ 0	$ 0		$ 0
Level 3 | Gaming licenses
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Indefinite-lived intangible assets, fair value	290,000,000.0
Level 3 | Trademarks
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Indefinite-lived intangible assets, fair value	$ 87,500,000