Organization and Business (Details)	12 Months Ended
Dec. 31, 2025 ft² facility tower restaurant room showroom
Macau Operations \| Wynn Palace
Organization Consolidation And Presentation Of Financial Statements Disclosure
Number of rooms in hotel \| room	1,706
Number of restaurants \| restaurant	12
Macau Operations \| Wynn Palace \| Casino
Organization Consolidation And Presentation Of Financial Statements Disclosure
Functional area square footage	468,000
Macau Operations \| Wynn Palace \| Meeting and Convention
Organization Consolidation And Presentation Of Financial Statements Disclosure
Functional area square footage	37,000
Macau Operations \| Wynn Palace \| Retail
Organization Consolidation And Presentation Of Financial Statements Disclosure
Functional area square footage	109,000
Macau Operations \| Wynn Macau
Organization Consolidation And Presentation Of Financial Statements Disclosure
Number of rooms in hotel \| room	1,014
Number of restaurants \| restaurant	11
Number of hotel towers \| tower	2
Macau Operations \| Wynn Macau \| Casino
Organization Consolidation And Presentation Of Financial Statements Disclosure
Functional area square footage	294,000
Macau Operations \| Wynn Macau \| Meeting and Convention
Organization Consolidation And Presentation Of Financial Statements Disclosure
Functional area square footage	31,000
Macau Operations \| Wynn Macau \| Retail
Organization Consolidation And Presentation Of Financial Statements Disclosure
Functional area square footage	75,900
Las Vegas Operations \| Wynn Las Vegas
Organization Consolidation And Presentation Of Financial Statements Disclosure
Number of rooms in hotel \| room	4,748
Number of restaurants \| restaurant	35
Number of hotel towers \| tower	2
Number of theaters \| showroom	2
Number of nightclubs \| facility	2
Las Vegas Operations \| Wynn Las Vegas \| Casino
Organization Consolidation And Presentation Of Financial Statements Disclosure
Functional area square footage	199,000
Las Vegas Operations \| Wynn Las Vegas \| Meeting and Convention
Organization Consolidation And Presentation Of Financial Statements Disclosure
Functional area square footage	510,000
Las Vegas Operations \| Wynn Las Vegas \| Retail
Organization Consolidation And Presentation Of Financial Statements Disclosure
Functional area square footage	178,000
Encore Boston Harbor
Organization Consolidation And Presentation Of Financial Statements Disclosure
Number of rooms in hotel \| room	671
Number of restaurants \| restaurant	16
Number of nightclubs \| facility	1
Encore Boston Harbor \| Casino
Organization Consolidation And Presentation Of Financial Statements Disclosure
Functional area square footage	215,000
Encore Boston Harbor \| Meeting and Convention
Organization Consolidation And Presentation Of Financial Statements Disclosure
Functional area square footage	71,000
Encore Boston Harbor \| Retail
Organization Consolidation And Presentation Of Financial Statements Disclosure
Functional area square footage	8,200
Wynn Palace and Wynn Macau
Organization Consolidation And Presentation Of Financial Statements Disclosure
Percentage of ownership	72.00%
Wynn Las Vegas
Organization Consolidation And Presentation Of Financial Statements Disclosure
Percentage of ownership	100.00%
Retail Joint Venture
Organization Consolidation And Presentation Of Financial Statements Disclosure
Percentage of ownership	50.10%
Retail Joint Venture \| Las Vegas Operations \| Wynn Las Vegas
Organization Consolidation And Presentation Of Financial Statements Disclosure
Percentage of ownership	50.10%
Island 3 AMI FZ-LLC
Organization Consolidation And Presentation Of Financial Statements Disclosure
Percentage of ownership	40.00%