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Long-Term Debt - Summary of Long-Term Debt - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Dec. 31, 2023
Debt Instrument [Line Items]
Long-term debt, gross	$ 11,269,137		$ 11,826,986
Long-term debt	11,211,618		11,738,337
Unamortized debt issuance costs and original issue discounts and premium, net	147,544		162,393
WM Cayman Holdings Limited II \| WM Cayman II Revolver, due 2025 \| Senior Secured Revolving Credit Facility
Debt Instrument [Line Items]
Long-term debt, gross	$ 1,346,764		1,497,610
Weighted average interest rate (percent)	6.80%
Available borrowing capacity	$ 149,600
WML \| WML 4 1/2% Convertible Bonds, due 2029 \| Convertible Debt
Debt Instrument [Line Items]
Long-term debt, gross	600,000		600,000
Long-term debt	484,100
Unamortized debt issuance costs and original issue discounts and premium, net	115,900
Interest expense	6,800	$ 1,800
Amortization of debt issuance costs and discounts	4,600	$ 1,100
WRF \| Senior Revolving Credit Facility, Due 2024 \| Senior Secured Revolving Credit Facility
Debt Instrument [Line Items]
Available borrowing capacity	737,200
Outstanding letters of credit	12,800
Wynn/CA Plaza Property Owner, LLC And Wynn/CA Property Owner, LLC (The Borrowers) \| Retail Term Loan, due 2025 \| Term Loan
Debt Instrument [Line Items]
Long-term debt, gross	$ 615,000		$ 615,000
SOFR \| WM Cayman Holdings Limited II \| WM Cayman II Revolver, due 2025 \| Senior Secured Revolving Credit Facility
Debt Instrument [Line Items]
Interest in addition to variable rate	0.10%
SOFR \| WRF \| Senior Secured Term Loan
Debt Instrument [Line Items]
Interest in addition to variable rate	1.85%
SOFR \| WRF \| WRF Credit Facilities
Debt Instrument [Line Items]
Weighted average interest rate (percent)	7.18%
SOFR \| Wynn/CA Plaza Property Owner, LLC And Wynn/CA Property Owner, LLC (The Borrowers) \| Retail Term Loan, due 2025 \| Term Loan
Debt Instrument [Line Items]
Interest in addition to variable rate	1.80%
Interest rate during period	5.47%
HIBOR or LIBOR \| WM Cayman Holdings Limited II \| WM Cayman II Revolver, due 2025 \| Senior Secured Revolving Credit Facility \| Minimum
Debt Instrument [Line Items]
Interest in addition to variable rate	1.875%
HIBOR or LIBOR \| WM Cayman Holdings Limited II \| WM Cayman II Revolver, due 2025 \| Senior Secured Revolving Credit Facility \| Maximum
Debt Instrument [Line Items]
Interest in addition to variable rate	2.875%
LIBOR \| WM Cayman Holdings Limited II \| WM Cayman II Revolver, due 2025 \| Senior Secured Revolving Credit Facility
Debt Instrument [Line Items]
Interest in addition to variable rate	1.975%
Long-term debt, gross	$ 281,300
HIBOR \| WM Cayman Holdings Limited II \| WM Cayman II Revolver, due 2025 \| Senior Secured Revolving Credit Facility
Debt Instrument [Line Items]
Interest in addition to variable rate	1.875%
Long-term debt, gross	$ 1,070,000