Development regulatory and sales milestones payments.

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- Definition

Initial transaction price.

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- Definition

Milestone payment earned.

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- Definition

Number of distinct bundle.

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- Definition

Percentage of eligible to receive tiered royalties on net sales.

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Carrying value as of the balance sheet date of obligations incurred and payable, pertaining to costs that are statutory in nature, are incurred on contractual obligations, or accumulate over time and for which invoices have not yet been received or will not be rendered. Examples include taxes, interest, rent and utilities. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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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.

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Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable, classified as current.

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Collaboration and License Agreements - Takeda Pharmaceutical Company Limited (Details)	1 Months Ended
	Jan. 31, 2021 USD ($)	Oct. 31, 2020 bundle	Mar. 31, 2025 USD ($)	Sep. 30, 2024 USD ($)	Mar. 31, 2023 USD ($)
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items]
Development regulatory and sales milestones payments			$ 13,300,000,000
Deferred revenue			43,268,000	$ 0
Accrued expenses			78,450,000	$ 63,017,000
Takeda \| License and Co-Funding Agreement
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items]
Number of distinct bundle \| bundle		1
Initial transaction price	$ 300,000,000
Milestone payment					$ 40,000,000
Deferred revenue			0
Accrued expenses			28,800,000
Takeda \| License and Co-Funding Agreement \| Minimum
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items]
Percentage of eligible to receive tiered royalties on net sales		20.00%
Takeda \| License and Co-Funding Agreement \| Maximum
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items]
Percentage of eligible to receive tiered royalties on net sales		25.00%
Development regulatory and sales milestones payments			$ 527,500,000