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Investments - Narrative (Details) - USD ($) $ in Thousands | 1 Months Ended | 12 Months Ended
--- | --- | ---
Feb. 29, 2020 | Sep. 30, 2020 | Sep. 30, 2019 | Sep. 30, 2018
Investments, Debt and Equity Securities [Abstract] |  |  |  |
Proceeds from equity offering | $ 49,500 | $ 49,153 | $ 0 | $ 0

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- Definition The cash inflow from the additional capital contribution to the entity. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3255-108585 + Details
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