Organization, Consolidation and Presentation of Financial Statements (Policies)	9 Months Ended
Jun. 30, 2021
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation	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 (“U.S. GAAP”) for interim information, and with the instructions to Form 10-Q and Rule 10-01 of Regulation S-X promulgated by the Securities and Exchange Commission (“SEC”). Accordingly, they do not include all information and notes required by U.S. GAAP for annual financial statements. In our opinion, the interim financial statements reflect all adjustments, which are all normal recurring adjustments, that are necessary to provide a fair presentation of the financial results for the interim periods presented. Operating results for interim periods are not necessarily indicative of results that may be expected for an entire fiscal year. The condensed consolidated balance sheet as of September 30, 2020 has been derived from the audited consolidated financial statements as of such date. For a more complete understanding of our business, financial position, operating results, cash flows, risk factors and other matters, please refer to our Annual Report on Form 10-K for the fiscal year ended September 30, 2020.
Significant Accounting Policies and Estimates	Significant Accounting Policies and EstimatesThere have been no material changes in our critical accounting policies and estimates from those disclosed in our Annual Report on Form 10-K for the fiscal year ended September 30, 2020. There have been no significant changes to our accounting policies during the nine months ended June 30, 2021. The preparation of condensed consolidated financial statements in conformity with U.S. GAAP requires us to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities, as of the date of the financial statements, and the reported amounts of revenue and expenses during the reported period. If these estimates differ significantly from actual results, the impact to the condensed consolidated financial statements may be material.
Recently Adopted Accounting Pronouncements and Recent Accounting Pronouncements Not Yet Adopted	Recently Adopted Accounting Pronouncements We recently adopted the following accounting standards, which had the following impacts on our consolidated financial statements: •In June 2016, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2016-13 Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments, which changes the way entities measure credit losses for most financial assets and certain other instruments that are not measured at fair value through net earnings. The new standard was effective for our fiscal year beginning October 1, 2020. The adoption of this standard did not have a material impact on the condensed consolidated financial statements. Recent Accounting Pronouncements Not Yet Adopted We are evaluating the following accounting standards and their impacts on our consolidated financial statements: •In March 2020, the FASB issued ASU 2019-12 Income Taxes (Topic 740): Simplifying the Accounting for Income Taxes, which removes certain exceptions to the general principles in Topic 740 and clarifies and amends existing guidance to improve consistent application. The new standard is effective for annual periods beginning after December 15, 2020, including interim periods within those annual periods. The new standard will be effective for our fiscal year beginning October 1, 2021 and early adoption is permitted. The Company is currently evaluating the new guidance to determine the impact it may have on its condensed consolidated financial statements and related disclosures.
Fair Value of Financial Instruments	Accounting Standards Codification Topic 820 (“ASC 820”), Fair Value Measurement, establishes a valuation hierarchy for disclosure of the inputs to valuation techniques used to measure fair value. This standard describes a fair value hierarchy based on three levels of inputs, of which the first two are considered observable and the last unobservable, that may be used to measure fair value: •Level 1 inputs are unadjusted quoted prices in active markets for identical assets or liabilities. •Level 2 inputs are quoted prices for similar assets and liabilities in active markets or inputs that are observable for the assets or liabilities, either directly or indirectly, through market corroboration, for substantially the full term of the financial instrument. •Level 3 inputs are unobservable inputs based on our own assumptions used to measure assets or liabilities at fair value. Classification of an asset or liability within this hierarchy is determined based on the lowest level input that is significant to the fair value measurement. Valuation techniques used to measure fair value under ASC 820 must maximize the use of observable inputs and minimize the use of unobservable inputs.
Cash and Cash Equivalents	Cash consists primarily of bank deposits or highly liquid short-term investments with a maturity of three months or less at the time of purchase.
Restricted Cash	Restricted cash represents temporarily restricted deposits held as compensating balances against short-term borrowing arrangements.
Legal Costs	Professional legal fees are expensed when incurred. We accrue for contingent losses when such losses are probable and reasonably estimable.

Organization, Consolidation and Presentation of Financial Statements (Policies)

9 Months Ended

Jun. 30, 2021

Organization, Consolidation and Presentation of Financial Statements [Abstract]

The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America (“U.S. GAAP”) for interim information, and with the instructions to Form 10-Q and Rule 10-01 of Regulation S-X promulgated by the Securities and Exchange Commission (“SEC”). Accordingly, they do not include all information and notes required by U.S. GAAP for annual financial statements.

In our opinion, the interim financial statements reflect all adjustments, which are all normal recurring adjustments, that are necessary to provide a fair presentation of the financial results for the interim periods presented. Operating results for interim periods are not necessarily indicative of results that may be expected for an entire fiscal year. The condensed consolidated balance sheet as of September 30, 2020 has been derived from the audited consolidated financial statements as of such date. For a more complete understanding of our business, financial position, operating results, cash flows, risk factors and other matters, please refer to our Annual Report on Form 10-K for the fiscal year ended September 30, 2020.

Significant Accounting Policies and Estimates

Significant Accounting Policies and EstimatesThere have been no material changes in our critical accounting policies and estimates from those disclosed in our Annual Report on Form 10-K for the fiscal year ended September 30, 2020. There have been no significant changes to our accounting policies during the nine months ended June 30, 2021. The preparation of condensed consolidated financial statements in conformity with U.S. GAAP requires us to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities, as of the date of the financial statements, and the reported amounts of revenue and expenses during the reported period. If these estimates differ significantly from actual results, the impact to the condensed consolidated financial statements may be material.

Recently Adopted Accounting Pronouncements and Recent Accounting Pronouncements Not Yet Adopted

Recently Adopted Accounting Pronouncements

We recently adopted the following accounting standards, which had the following impacts on our consolidated financial statements:

•In June 2016, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2016-13 Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments, which changes the way entities measure credit losses for most financial assets and certain other instruments that are not measured at fair value through net earnings. The new standard was effective for our fiscal year beginning October

1, 2020. The adoption of this standard did not have a material impact on the condensed consolidated financial statements.

Recent Accounting Pronouncements Not Yet Adopted

We are evaluating the following accounting standards and their impacts on our consolidated financial statements:

•In March 2020, the FASB issued ASU 2019-12 Income Taxes (Topic 740): Simplifying the Accounting for Income Taxes, which removes certain exceptions to the general principles in Topic 740 and clarifies and amends existing guidance to improve consistent application. The new standard is effective for annual periods beginning after December 15, 2020, including interim periods within those annual periods. The new standard will be effective for our fiscal year beginning October 1, 2021 and early adoption is permitted. The Company is currently evaluating the new guidance to determine the impact it may have on its condensed consolidated financial statements and related disclosures.

Fair Value of Financial Instruments

Accounting Standards Codification Topic 820 (“ASC 820”), Fair Value Measurement, establishes a valuation hierarchy for disclosure of the inputs to valuation techniques used to measure fair value. This standard describes a fair value hierarchy based on three levels of inputs, of which the first two are considered observable and the last unobservable, that may be used to measure fair value:

•Level 1 inputs are unadjusted quoted prices in active markets for identical assets or liabilities.

•Level 2 inputs are quoted prices for similar assets and liabilities in active markets or inputs that are observable for the assets or liabilities, either directly or indirectly, through market corroboration, for substantially the full term of the financial instrument.

•Level 3 inputs are unobservable inputs based on our own assumptions used to measure assets or liabilities at fair value.

Classification of an asset or liability within this hierarchy is determined based on the lowest level input that is significant to the fair value measurement. Valuation techniques used to measure fair value under ASC 820 must maximize the use of observable inputs and minimize the use of unobservable inputs.

Cash and Cash Equivalents

Cash consists primarily of bank deposits or highly liquid short-term investments with a maturity of three months or less at the time of purchase.

Restricted Cash

Restricted cash represents temporarily restricted deposits held as compensating balances against short-term borrowing arrangements.

Legal Costs

Professional legal fees are expensed when incurred. We accrue for contingent losses when such losses are probable and reasonably estimable.