Fair Value Measurements - Narrative (Details) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2023 USD ($) payment installment period	Jun. 30, 2022 USD ($)	Jun. 30, 2023 USD ($) payment installment period	Jun. 30, 2022 USD ($)	Apr. 07, 2023 USD ($)	Dec. 31, 2022 USD ($)	Jul. 01, 2021	Feb. 28, 2021
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity securities	$ 20.2		$ 20.2			$ 17.1
Equity securities, FV-NI, unrealized (loss) gain	6.3	$ (16.9)	3.1	$ (55.6)
Hitpoint
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Installment amount of contingent consideration	$ 1.0		$ 1.0
Number of installments for contingent consideration | installment	3		3
Number of remaining achievement periods | period	1		1
Plainridge Park Casino
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Number of remaining annual payments | payment	3		3
Period of actual earnings used to calculate contingent consideration			10 years
Pinnacle Retama Partners, LLC | Other Assets | Local Government Bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment, at amortized cost						$ 6.7
Pinnacle Retama Partners, LLC | Other Assets | Retama Development Corporation
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Promissory notes	$ 7.9		$ 7.9
Retama Nominal Holder, LLC
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Ownership interest	1.00%		1.00%
Pinnacle Retama Partners, LLC
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Ownership interest by parent	75.50%		75.50%
Senior Notes | 5.625% Notes due 2027
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Interest rate	5.625%		5.625%			5.625%
Senior Notes | 4.125% Notes due 2029
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Interest rate	4.125%		4.125%			4.125%	4.125%
Secured Convertible Notes | Debt Securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Interest rate					12.00%
Debt securities, available-for-sale					$ 20.0
Other Long-Term Obligations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Effective yield								27.00%