Organization and Basis of Presentation	9 Months Ended
Jun. 30, 2022
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Organization and Basis of Presentation	Organization and Basis of Presentation Organization The Mohegan Tribal Gaming Authority (the “Company,” “we,” “us,” or “our”) was established by the Mohegan Tribe of Indians of Connecticut (the “Mohegan Tribe”) in July 1995. We have the exclusive authority to conduct and regulate gaming activities for the Mohegan Tribe on tribal lands and the non-exclusive authority to conduct such activities elsewhere. The Mohegan Tribe is a sovereign Indian nation with independent legal jurisdiction over its people and land. We are primarily engaged in the ownership, operation and development of integrated entertainment facilities. We currently own two facilities in the United States and operate five facilities in the United States and Canada. We are also currently developing a facility in South Korea, the Inspire Entertainment Resort located adjacent to the Incheon International Airport (“Inspire Korea”). Impact of the COVID-19 Pandemic In March 2020, the World Health Organization declared the outbreak of COVID-19 a global pandemic and the United States federal government declared it a national emergency. The spread of COVID-19 has affected most segments of the global economy, including our operations. In March 2020, we temporarily suspended operations at our properties in the United States and Canada to ensure the health and safety of our employees, guests and the surrounding communities in which we operate, consistent with directives from various governmental bodies. All of our properties in the United States were reopened by July 2020. Our properties in Canada reopened in July 2021, but were temporarily closed again from January 5, 2022 through January 30, 2022, due to a resurgence of COVID-19 at that time. COVID-19 has had a significant impact on our operations, the full extent of which depends on future developments which are highly uncertain and cannot be predicted with confidence. Such developments include the following: •the duration of COVID-19 or the extent of any resurgence or variants of COVID-19; •the manner in which our guests, suppliers and other third parties respond to COVID-19, including the perception of safety and health measures we implemented; •new information that may emerge concerning the severity of COVID-19 and the actions to contain or treat it; •general economic conditions; and •consumer confidence. Accordingly, we cannot reasonably estimate the extent to which COVID-19 will further impact our future financial condition, results of operations and cash flows. We could experience other potential adverse impacts as a result of COVID-19, including, but not limited to, charges from further adjustments to the carrying value of our intangible assets, as well as other long-lived asset impairment charges. Actual results may differ materially from our current estimates as the scope of COVID-19 evolves, depending largely, but not exclusively, on the duration and extent of our business disruptions. Basis of Presentation The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America (“US GAAP”) for interim financial information and with instructions to Form 10-Q and Rule 10-01 of Regulation S-X. In accordance with Rule 10-01, the accompanying unaudited condensed consolidated financial statements do not include all of the information and footnotes required by US GAAP for complete consolidated financial statements. The accompanying year-end condensed consolidated balance sheet was derived from audited financial statements, but does not include all disclosures required by US GAAP. All adjustments, including normal recurring accruals and adjustments, necessary for a fair statement of our operating results for the interim period, have been included. Our results of operations for these interim periods are not necessarily indicative of operating results for other interim periods, full fiscal years or any other periods, particularly given the impact of COVID-19 as discussed above. The accompanying condensed consolidated financial statements should be read in conjunction with the consolidated financial statements and notes thereto included in our Annual Report on Form 10-K for the fiscal year ended September 30, 2021. The preparation of financial statements in conformity with US GAAP requires us to make estimates and judgments that affect the reported amounts of assets, liabilities, revenues, expenses and related disclosures of contingent assets and liabilities. Similar to other sovereign governments, the Mohegan Tribe and its entities, including the Company, are not subject to United States federal income taxes. However, certain of our non-tribal entities are subject to income taxes in various state and local jurisdictions within the United States and in Canada. Inspire Korea The initial phase of Inspire Korea primarily consists of an integrated entertainment resort. Design and construction work was temporarily paused in September 2020 while we were in the process of securing the necessary financing for the project, which was completed in November 2021 (see Note 2). During this temporary pause in construction, Inspire Korea obtained approval to modify its development plan and adjust the timing of a future sub-phase of the initial phase of the project. On December 27, 2021, Inspire Korea elected to terminate a licensing arrangement for a previously-planned sub-phase and discontinue related design work. As a result, we recognized an intangible asset impairment of $12.9 million related to the licensing arrangement and a tangible asset impairment of $17.7 million on the related construction in progress. Recently Issued Accounting Pronouncements ASU 2019-12 In December 2019, the Financial Accounting Standards Board (the “FASB”) issued ASU 2019-12, “Income Taxes (Topic 740): Simplifying the Accounting for Income Taxes” (“ASU 2019-12”), which simplifies various aspects related to the accounting for income taxes. This new standard removes certain exceptions to the general principles in ASU 2019-12 and clarifies and amends existing guidance to improve consistent application. ASU 2019-12 was effective for annual reporting periods beginning after December 15, 2020. There was no effect on the Company’s financial statements from adopting this new standard. ASU 2021-10 In November 2021, the FASB issued ASU 2021-10, “Government Assistance (Topic 832): Disclosures by Business Entities about Government Assistance” (“ASU 2021-10”), which requires business entities to provide certain disclosures about government transactions that are accounted for by applying a grant or contribution accounting model by analogy to other accounting guidance. ASU 2021-10 is effective for annual reporting periods beginning after December 15, 2021. The Company is currently evaluating the effect ASU 2021-10 will have on its disclosures.

The Mohegan Tribal Gaming Authority (the “Company,” “we,” “us,” or “our”) was established by the Mohegan Tribe of Indians of Connecticut (the “Mohegan Tribe”) in July 1995. We have the exclusive authority to conduct and regulate gaming activities for the Mohegan Tribe on tribal lands and the non-exclusive authority to conduct such activities elsewhere. The Mohegan Tribe is a sovereign Indian nation with independent legal jurisdiction over its people and land.

We are primarily engaged in the ownership, operation and development of integrated entertainment facilities. We currently own two facilities in the United States and operate five facilities in the United States and Canada. We are also currently developing a facility in South Korea, the Inspire Entertainment Resort located adjacent to the Incheon International Airport (“Inspire Korea”).

In March 2020, the World Health Organization declared the outbreak of COVID-19 a global pandemic and the United States federal government declared it a national emergency. The spread of COVID-19 has affected most segments of the global economy, including our operations. In March 2020, we temporarily suspended operations at our properties in the United States and Canada to ensure the health and safety of our employees, guests and the surrounding communities in which we operate, consistent with directives from various governmental bodies. All of our properties in the United States were reopened by July 2020. Our properties in Canada reopened in July 2021, but were temporarily closed again from January 5, 2022 through January 30, 2022, due to a resurgence of COVID-19 at that time.

COVID-19 has had a significant impact on our operations, the full extent of which depends on future developments which are highly uncertain and cannot be predicted with confidence. Such developments include the following:

We could experience other potential adverse impacts as a result of COVID-19, including, but not limited to, charges from further adjustments to the carrying value of our intangible assets, as well as other long-lived asset impairment charges. Actual results may differ materially from our current estimates as the scope of COVID-19 evolves, depending largely, but not exclusively, on the duration and extent of our business disruptions.

The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America (“US GAAP”) for interim financial information and with instructions to Form 10-Q and Rule 10-01 of Regulation S-X. In accordance with Rule 10-01, the accompanying unaudited condensed consolidated financial statements do not include all of the information and footnotes required by US GAAP for complete consolidated financial statements. The accompanying year-end condensed consolidated balance sheet was derived from audited financial statements, but does not include all disclosures required by US GAAP. All adjustments, including normal recurring accruals and adjustments, necessary for a fair statement of our operating results for the interim period, have been included.

Our results of operations for these interim periods are not necessarily indicative of operating results for other interim periods, full fiscal years or any other periods, particularly given the impact of COVID-19 as discussed above.

The accompanying condensed consolidated financial statements should be read in conjunction with the consolidated financial statements and notes thereto included in our Annual Report on Form 10-K for the fiscal year ended September 30, 2021. The preparation of financial statements in conformity with US GAAP requires us to make estimates and judgments that affect the reported amounts of assets, liabilities, revenues, expenses and related disclosures of contingent assets and liabilities.

Similar to other sovereign governments, the Mohegan Tribe and its entities, including the Company, are not subject to United States federal income taxes. However, certain of our non-tribal entities are subject to income taxes in various state and local jurisdictions within the United States and in Canada.

The initial phase of Inspire Korea primarily consists of an integrated entertainment resort. Design and construction work was temporarily paused in September 2020 while we were in the process of securing the necessary financing for the project, which was completed in November 2021 (see Note 2). During this temporary pause in construction, Inspire Korea obtained approval to modify its development plan and adjust the timing of a future sub-phase of the initial phase of the project.

On December 27, 2021, Inspire Korea elected to terminate a licensing arrangement for a previously-planned sub-phase and discontinue related design work. As a result, we recognized an intangible asset impairment of $12.9 million related to the licensing arrangement and a tangible asset impairment of $17.7 million on the related construction in progress.

In December 2019, the Financial Accounting Standards Board (the “FASB”) issued ASU 2019-12, “Income Taxes (Topic 740): Simplifying the Accounting for Income Taxes” (“ASU 2019-12”), which simplifies various aspects related to the accounting for income taxes. This new standard removes certain exceptions to the general principles in ASU 2019-12 and clarifies and amends existing guidance to improve consistent application. ASU 2019-12 was effective for annual reporting periods beginning after December 15, 2020. There was no effect on the Company’s financial statements from adopting this new standard.

In November 2021, the FASB issued ASU 2021-10, “Government Assistance (Topic 832): Disclosures by Business Entities about Government Assistance” (“ASU 2021-10”), which requires business entities to provide certain disclosures about government transactions that are accounted for by applying a grant or contribution accounting model by analogy to other accounting guidance. ASU 2021-10 is effective for annual reporting periods beginning after December 15, 2021. The Company is currently evaluating the effect ASU 2021-10 will have on its disclosures.