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Earnings Per Share - Additional Information (Detail) - shares | 12 Months Ended
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Sep. 30, 2020 | Sep. 30, 2019 | Sep. 30, 2018
Restricted Stock [Member] |  |  |
Earnings Per Share [Line Items] |  |  |
Anti-dilutive securities excluded from calculation of diluted loss per share | 0 | 0 | 0
Number of Warrants [Member] |  |  |
Earnings Per Share [Line Items] |  |  |
Anti-dilutive securities excluded from calculation of diluted loss per share | 0 | 0 | 0

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- Definition Earnings Per Share [Line Items] + References No definition available. + Details
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- Definition Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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- Details
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- Details
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