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Summary of Significant Accounting Policies Summary of Significant Accounting Policies - Stock Based Compensation (Details) | 12 Months Ended
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Sep. 30, 2021
Restricted Stock Units (RSUs) [Member] | Maximum [Member] |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Remaining vesting period | 4 years 7 months 6 days
Share-based Payment Arrangement, Option [Member] |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Expiration period | 10 years

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- Definition Share-based Compensation Arrangement by Share-based Payment Award, Remaining Award Vesting Period + References No definition available. + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition Period from grant date that an equity-based award expires, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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