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v3.22.2.2

Commitments and Contingencies - Additional Information (Detail) $ in Millions | 2 Months Ended | 9 Months Ended
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May 31, 2021 PutativeClassAction | Sep. 30, 2022 USD ($)
Commitments And Contingencies [Line Items] |  |
Operating lease liability |  | $ 92.6
Outstanding non-cancelable purchase obligations |  | 51.2
Putative securities class action complaints filed | PutativeClassAction | 5 |
Manufacture and Supply of Roxadustat [Member] |  |
Commitments And Contingencies [Line Items] |  |
Outstanding non-cancelable purchase obligations |  | 7.8
Manufacture and Supply of Pamrevlumab [Member] |  |
Commitments And Contingencies [Line Items] |  |
Outstanding non-cancelable purchase obligations |  | 21.0
Other Purchases [Member] |  |
Commitments And Contingencies [Line Items] |  |
Outstanding non-cancelable purchase obligations |  | 22.3
Research and Pre-Clinical Stage Development Programs [Member] |  |
Commitments And Contingencies [Line Items] |  |
Maximum future milestone payments |  | $ 697.9

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