Organization (Details) ft² in Thousands, m² in Millions	12 Months Ended
	Sep. 30, 2022 m² ft² a facility mi
Entity Information [Line Items]
Distance from property | mi	16
Mohegan Sun
Entity Information [Line Items]
Area of real estate | a	196
Mohegan Pennsylvania
Entity Information [Line Items]
Area of real estate | a	400
Inspire Korea
Entity Information [Line Items]
Area of real estate | m²	4.4
Mohegan Casino Las Vegas
Entity Information [Line Items]
Area of real estate | ft²	60
Resorts Casino Hotel | Resorts Casino Hotel
Entity Information [Line Items]
Percent ownership	10.00%
United States
Entity Information [Line Items]
Number of integrated entertainment facilities	2
United States and Canada
Entity Information [Line Items]
Number of integrated entertainment facilities	5
Connecticut
Entity Information [Line Items]
Number of facilities	2
Connecticut | Mohegan Sun
Entity Information [Line Items]
Number of facilities	1
Pennsylvania
Entity Information [Line Items]
Number of facilities	16
Pennsylvania | Mohegan Pennsylvania
Entity Information [Line Items]
Number of facilities	1
Niagara, Canada | Niagara Resorts
Entity Information [Line Items]
Number of facilities	2
Atlantic City, New Jersey
Entity Information [Line Items]
Number of facilities	9
Atlantic City, New Jersey | Resorts Casino Hotel
Entity Information [Line Items]
Number of facilities	1