Revenue Recognition - Accounts Receivable, Net (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Sep. 30, 2021
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts receivable	$ 62,804	$ 60,139
Allowance for doubtful accounts	(21,566)	(19,367)
Accounts receivable, net	41,238	40,772
Gaming
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts receivable	37,220	37,921
Food and beverage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts receivable	14	13
Hotel
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts receivable	3,098	3,106
Retail, entertainment and other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts receivable	$ 22,472	$ 19,099