Long-Term Debt - Wynn Macau Credit Facilities (Details) MOP$ in Millions		1 Months Ended	12 Months Ended
	Sep. 30, 2015	Feb. 28, 2020 USD ($)	Dec. 31, 2019 MOP (MOP$)	Dec. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)	Dec. 31, 2017 USD ($)	Dec. 31, 2019 USD ($)	Sep. 30, 2016 USD ($)
Line of Credit Facility [Line Items]
Loss on extinguishment of debt				$ 12,437,000	$ (104,000)	$ 55,360,000
Senior Term Loan Facility, Due 2022 | Wynn Macau
Line of Credit Facility [Line Items]
Consolidated leverage ratio, minimum			4.5	4.5
Consolidated leverage ratio excess cash flow percentage			25.00%	25.00%
Interest coverage ratio, minimum			2.00	2.00
Senior Term Loan Facility, Due 2022 | Wynn Macau | Revolving Credit Facility
Line of Credit Facility [Line Items]
Credit facility, maximum borrowing capacity								$ 750,000,000
Senior Term Loan Facility, Due 2022 | Wynn Macau | Term Loans
Line of Credit Facility [Line Items]
Final payment percent, principal	50.00%
Senior Term Loan Facility, Due 2022 | Wynn Macau | Secured Debt
Line of Credit Facility [Line Items]
Interest rate during period on debt			3.95%	3.95%	4.17%
Amount intended to prepay				$ 1,000,000,000.0
Current liability related to debt prepayment							$ 150,000,000.0
Senior Term Loan Facility, Due 2022 | Wynn Macau | Secured Debt | Subsequent Event
Line of Credit Facility [Line Items]
Amount prepaid		$ 150,000,000.0
Senior Term Loan Facility, Due 2022 | Wynn Macau | Secured Debt | Secured Debt
Line of Credit Facility [Line Items]
Credit facility, maximum borrowing capacity								2,300,000,000
Conditional increase limit on line of credit								$ 1,000,000,000.0
Amended Common Terms Agreement, Senior Term Loan Facility, Due June 2022 | Wynn Macau | Term Loans
Line of Credit Facility [Line Items]
Final payment percent, principal			75.00%	75.00%
Minimum | Senior Term Loan Facility, Due 2022 | Wynn Macau | Revolving Credit Facility
Line of Credit Facility [Line Items]
Commitment fee percentage			0.52%	0.52%
Minimum | Senior Term Loan Facility, Due 2022 | Wynn Macau | Term Loans
Line of Credit Facility [Line Items]
Periodic principal payment percent	2.50%
Minimum | Amended Common Terms Agreement, Senior Term Loan Facility, Due June 2022 | Wynn Macau | Term Loans
Line of Credit Facility [Line Items]
Periodic principal payment percent			2.875%	2.875%
Maximum | Senior Term Loan Facility, Due 2022 | Wynn Macau | Fiscal Year ending December 31, 2019
Line of Credit Facility [Line Items]
Debt covenant, maximum leverage ratio			4.25				4.25
Maximum | Senior Term Loan Facility, Due 2022 | Wynn Macau | Fiscal Year ending December 31, 2020 and Thereafter
Line of Credit Facility [Line Items]
Debt covenant, maximum leverage ratio			4.00				4.00
Maximum | Senior Term Loan Facility, Due 2022 | Wynn Macau | Revolving Credit Facility
Line of Credit Facility [Line Items]
Commitment fee percentage			0.79%	0.79%
Maximum | Senior Term Loan Facility, Due 2022 | Wynn Macau | Term Loans
Line of Credit Facility [Line Items]
Periodic principal payment percent	7.33%
Maximum | Senior Term Loan Facility, Due 2022 | Wynn Macau | Secured Debt
Line of Credit Facility [Line Items]
Expected prepayment period			2 years	2 years
Maximum | Amended Common Terms Agreement, Senior Term Loan Facility, Due June 2022 | Wynn Macau | Term Loans
Line of Credit Facility [Line Items]
Periodic principal payment percent			4.50%	4.50%
Performance Guarantee | Bank Guarantee Reimbursement Agreement | Wynn Macau
Line of Credit Facility [Line Items]
Bank guarantee carrying amount			MOP$ 300.0				$ 37,400,000
Period after the end of the term of the concession agreement that the guarantee amount will remain unchanged			180 days	180 days
Maximum guarantee by Macau government			MOP$ 2.3	$ 300,000