Collaborations (Details) - Kyowa Kirin Co. Ltd. $ in Millions	3 Months Ended
Sep. 30, 2021 USD ($)
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Up-front payment	$ 400
Revenue Recognition, Milestone Method, Potential Future Milestone payments	$ 850

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.

No definition available.

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Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration