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Number of collaboration agreements.

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Number of targets.

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Number of targets selected.

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

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Cash received from collaborators during the current period.

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Indicates type of revenue from product and service. Includes, but is not limited to, revenue from contract with customer and other sources.

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Collaboration and License Agreements - AbbVie Ireland Unlimited Company - Additional Information (Details) $ in Thousands	1 Months Ended			12 Months Ended
	Mar. 31, 2020	Jun. 30, 2019 USD ($)	Apr. 30, 2016 USD ($) Target Agreement	Dec. 31, 2024 USD ($)	Dec. 31, 2023 USD ($)	Mar. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)	Mar. 31, 2017 Target
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items]
Type of Revenue [Extensible List]				us-gaap:LicenseAndServiceMember	us-gaap:LicenseAndServiceMember
Deferred revenue				$ 94,063	$ 212,315		$ 301,326
AbbVie Ireland Unlimited Company \| Collaborative Arrangement
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items]
Number of collaboration agreements \| Agreement			2
AbbVie Ireland Unlimited Company \| CD71 Agreement
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items]
Milestone payments received			$ 100,000
Deferred revenue						$ 4,000
AbbVie Ireland Unlimited Company \| CD71 Agreement \| Transferred over Time
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items]
Type of Revenue [Extensible List]	us-gaap:LicenseAndServiceMember
AbbVie Ireland Unlimited Company \| Discovery Agreement
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items]
Upfront payment received			$ 10,000
Number of targets selected \| Target								1
AbbVie Ireland Unlimited Company \| Discovery Agreement \| Second Target
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items]
Milestone payments received		$ 10,000
AbbVie Ireland Unlimited Company \| Discovery Agreement \| Maximum
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items]
Number of targets \| Target			2