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Related Party Transactions - Additional Information (Detail) $ in Millions	1 Months Ended		3 Months Ended		6 Months Ended
	Oct. 31, 2023 shares	Aug. 31, 2018	Sep. 30, 2023 USD ($)	Sep. 30, 2022 USD ($)	Sep. 30, 2023 USD ($)	Sep. 30, 2022 USD ($)	Jun. 30, 2020 subleaseAgreement
Related Party Transaction [Line Items]
Number of sublease agreements | subleaseAgreement							2
Operating lease rent expense | $			$ 0.3	$ 0.3	$ 0.6	$ 0.6
Public Stock Offering | Subsequent Event
Related Party Transaction [Line Items]
Number of shares issued in transaction (in shares)	8,475,500
Private Placement | Subsequent Event
Related Party Transaction [Line Items]
Number of shares issued in transaction (in shares)	4,473,684
Related Party
Related Party Transaction [Line Items]
Purchase obligation, termination notice period (in days)		90 days
Related Party | Public Stock Offering | Subsequent Event
Related Party Transaction [Line Items]
Number of shares issued in transaction (in shares)	1,526,316

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- Definition

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+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 45
-Paragraph 4
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479041/842-20-45-4

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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

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 946
-SubTopic 220
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.6-07(2)(c)(2)(i))
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147483575/946-220-S99-1

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 946
-SubTopic 220
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.6-07(2)(c)(2)(ii))
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147483575/946-220-S99-1

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 946
-SubTopic 220
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