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Document and Entity Information
Feb. 08, 2021
Cover [Abstract]  
Entity Registrant Name WYNN RESORTS LTD
Amendment Flag false
Entity Central Index Key 0001174922
Document Type 8-K
Document Period End Date Feb. 08, 2021
Entity Incorporation State Country Code NV
Entity File Number 000-50028
Entity Tax Identification Number 46-0484987
Entity Address, Address Line One 3131 Las Vegas Boulevard South
Entity Address, City or Town Las Vegas
Entity Address, State or Province NV
Entity Address, Postal Zip Code 89109
City Area Code (702)
Local Phone Number 770-7555
Written Communications false
Soliciting Material false
Pre Commencement Tender Offer false
Pre Commencement Issuer Tender Offer false
Security 12b Title Common stock, par value $0.01
Trading Symbol WYNN
Security Exchange Name NASDAQ
Entity Emerging Growth Company false