Significant Accounting Policies - Revenue Recognition (Details)	12 Months Ended
	Dec. 31, 2021 USD ($) agreement	Dec. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)
Revenue from External Customer [Line Items]
Total complimentaries associated with gaming contracts	$ 309,300,000	$ 209,900,000	$ 438,600,000
Revenue recognized	16,300,000	5,600,000	600,000
Loyalty credit obligation
Revenue from External Customer [Line Items]
Customer-related liabilities, current	$ 37,600,000	35,800,000
Contract with customer, term	6 months
Advance payments on goods and services yet to be provided or unpaid wagers
Revenue from External Customer [Line Items]
Customer-related liabilities	$ 112,000,000	47,100,000
Customer-related liabilities, long-term	$ 0	500,000
Virtual playing credits
Revenue from External Customer [Line Items]
Redemption period over which revenue is recognized	three days
Food and beverage
Revenue from External Customer [Line Items]
Total complimentaries associated with gaming contracts	$ 173,700,000	123,600,000	261,400,000
Hotel
Revenue from External Customer [Line Items]
Total complimentaries associated with gaming contracts	125,400,000	79,600,000	159,600,000
Other
Revenue from External Customer [Line Items]
Total complimentaries associated with gaming contracts	10,200,000	6,700,000	$ 17,600,000
Online sports betting and related iGaming market access
Revenue from External Customer [Line Items]
Customer-related liabilities, long-term	$ 52,200,000	$ 52,700,000
Number of operator agreements for which ordinary shares and warrants received | agreement	2