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Basis of Presentation and Significant Accounting Policies - Summary of Activity for Contract Liabilities (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Mar. 31, 2024 | Mar. 31, 2023 | Mar. 31, 2024 | Mar. 31, 2023
Organization, Consolidation and Presentation of Financial Statements [Abstract] |  |  |  |
Beginning balance | $ 9,518 | $ 6,955 | $ 8,018 | $ 7,231
New deposits | 724 | 3,552 | 3,547 | 4,279
Deferred revenue | (9) |  | (6) |
Revenue recognized | (1,218) | (846) | (2,544) | (1,414)
Adjustment |  |  |  | (435)
Ending balance | $ 9,015 | $ 9,661 | $ 9,015 | $ 9,661

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- Definition Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479837/606-10-45-1 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 8 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479806/606-10-50-8 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479837/606-10-45-2 + Details
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