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Subsequent Events - Additional Information (Detail) - Subsequent Event [Member] - Collaboration and License Agreement [Member] - Swedish Orphan Biovitrum AB (Publ) [Member] - USD ($) $ in Millions | Nov. 02, 2020 | Oct. 27, 2020
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Subsequent Event [Line Items] |  |
Upfront Payment | $ 250 | $ 250
Development cost reimbursement |  | $ 80
Royalties entitled to receive after first commercial sale of applicable licensed product period |  | 10 years
Execution period of collaboration agreement |  | 10 days
Maximum [Member] |  |
Subsequent Event [Line Items] |  |
Aggregate milestone payments upon achievement of specified one-time regulatory and commercial milestone events |  | $ 915

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- Definition Aggregate milestone payments upon achievement of specified one-time regulatory and commercial milestone events. + References No definition available. + Details
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Period Type: | instant

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- Definition Development cost reimbursement. + References No definition available. + Details
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Period Type: | duration

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- Definition Execution Period of collaboration agreement. + References No definition available. + Details
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- Definition Royalties entitled to receive after first commercial sale of applicable licensed product period. + References No definition available. + Details
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- Definition Upfront payment. + References No definition available. + Details
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Balance Type: | credit
Period Type: | duration

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- Definition Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event. + References No definition available. + Details
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- Details
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- Details
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- Details
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Namespace Prefix: |
Data Type: | na
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- Details
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