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Licenses and collaborative arrangement (Details) $ / shares in Units, $ in Thousands |  | 1 Months Ended | 3 Months Ended | 9 Months Ended |  |
--- | --- | --- | --- | --- | --- | ---
Jan. 13, 2021 $ / shares shares | Jan. 31, 2021 USD ($) | Dec. 31, 2020 $ / shares | Jun. 30, 2019 Milestone | Dec. 31, 2017 Investors | Mar. 31, 2021 USD ($) | Sep. 30, 2021 USD ($) Milestone Molecules programs $ / shares | Sep. 30, 2022 | Jul. 31, 2021 USD ($) $ / shares
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items] |  |  |  |  |  |  |  |  |
Common stock par value | $ / shares |  |  | $ 0.00006 |  |  |  | $ 0.00006 |  |
Issuance of ordinary shares in connection with collaboration and license arrangement |  |  |  |  |  | $ 62,250 |  |  |
Number of molecules | Molecules |  |  |  |  |  |  | 2 |  |
Number of programs | programs |  |  |  |  |  |  | 4 |  |
Maximum |  |  |  |  |  |  |  |  |
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items] |  |  |  |  |  |  |  |  |
Future milestone payments to be made upon achievement |  |  |  |  |  |  | $ 4,878,738 |  |
Five Prime |  |  |  |  |  |  |  |  |
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items] |  |  |  |  |  |  |  |  |
License agreement date |  |  |  |  | 2017-12 |  |  |  |
Payment of upfront fees |  |  |  |  |  |  | 5,000 |  |
Number of milestone payments | Investors |  |  |  |  | 1 |  |  |  |
Milestone payments |  |  |  |  |  |  | 2,000 |  |
Five Prime | Maximum |  |  |  |  |  |  |  |  |
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items] |  |  |  |  |  |  |  |  |
Additional milestone payments |  |  |  |  |  |  | 37,000 |  |
Deciphera Pharmaceuticals LLC |  |  |  |  |  |  |  |  |
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items] |  |  |  |  |  |  |  |  |
License agreement date |  |  |  | 2019-06 |  |  |  |  |
Payment of upfront fees |  |  |  |  |  |  | 20,000 |  |
Milestone payment accrued |  |  |  |  |  | $ 12,000 |  |  |
Number of milestone payments | Milestone |  |  |  | 3 |  |  |  |  |
Deciphera Pharmaceuticals LLC | Maximum |  |  |  |  |  |  |  |  |
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items] |  |  |  |  |  |  |  |  |
Additional milestone payments |  |  |  |  |  |  | 173,000 |  |
Argenx BV |  |  |  |  |  |  |  |  |
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items] |  |  |  |  |  |  |  |  |
License agreement date |  | 2021-01 |  |  |  |  |  |  |
Development cost-sharing payment |  |  |  |  |  |  | 75,000 |  |
Issuance of ordinary shares in connection with collaboration and license arrangement, Shares | shares | 568,182 |  |  |  |  |  |  |  |
Common stock par value | $ / shares | $ 0.00006 |  |  |  |  |  |  |  |
Issuance of ordinary shares in connection with collaboration and license arrangement |  |  |  |  |  |  | 62,250 |  |
Future cash payment |  |  |  |  |  |  | 25,000 |  |
GSK |  |  |  |  |  |  |  |  |
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items] |  |  |  |  |  |  |  |  |
Payment of upfront fees |  |  |  |  |  |  | 15,000 |  |
Milestone payment accrued |  |  |  |  |  |  | $ 3,500 |  |
Number of milestone payments Accrued | Milestone |  |  |  |  |  |  | 1 |  |
Number of milestone payments | Milestone |  |  |  |  |  |  | 1 |  |
Milestone payments |  |  |  |  |  |  | $ 1,000 |  |
Additional milestone payments |  |  |  |  |  |  | 36,000,000 |  |
ZLAB Turning Point Therapeutics Inc |  |  |  |  |  |  |  |  |
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items] |  |  |  |  |  |  |  |  |
Milestone payment accrued |  |  |  |  |  |  | $ 3,000 |  |
Number of milestone payments Accrued | Milestone |  |  |  |  |  |  | 2 |  |
Number of milestone payments | Milestone |  |  |  |  |  |  | 1 |  |
Milestone payments |  |  |  |  |  |  | $ 2,000 |  |
Mirati Therapeutics Inc |  |  |  |  |  |  |  |  |
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items] |  |  |  |  |  |  |  |  |
Payment of upfront fees for license agreement, accrued |  |  |  |  |  |  | 65,000 |  |
Future milestone payments to be made upon achievement |  |  |  |  |  |  | $ 273,000 |  |
Mirati Therapeutics Inc | Maximum |  |  |  |  |  |  |  |  |
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items] |  |  |  |  |  |  |  |  |
Percentage of tiered royalties on annual net sales |  |  |  |  |  |  | 20.00% |  |
Mirati Therapeutics Inc | Minimum |  |  |  |  |  |  |  |  |
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items] |  |  |  |  |  |  |  |  |
Percentage of tiered royalties on annual net sales |  |  |  |  |  |  |  | 0.00% |
MacroGenics |  |  |  |  |  |  |  |  |
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items] |  |  |  |  |  |  |  |  |
Payment of upfront fees |  |  |  |  |  |  | $ 25,000 |  |
Payment of upfront fees for license agreement, accrued |  |  |  |  |  |  | $ 25,000 |  |
Number of milestone payments | Milestone |  |  |  |  |  |  | 2 |  |
Milestone payments |  |  |  |  |  |  | $ 4,000 |  |
Additional milestone payments |  |  |  |  |  |  | 136,000 |  |
Future milestone payments to be made upon achievement |  |  |  |  |  |  | $ 1,386,000 |  |
MacroGenics | Collaboration and License Agreement [Member] |  |  |  |  |  |  |  |  |
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items] |  |  |  |  |  |  |  |  |
Equity Method Investments |  |  |  |  |  |  |  |  | $ 30,000
Issue price per share | $ / shares |  |  |  |  |  |  |  |  | $ 31.30
Turning Point Therapeutics Inc |  |  |  |  |  |  |  |  |
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items] |  |  |  |  |  |  |  |  |
License agreement date |  | 2021-01 |  |  |  |  | 2020-07 |  |
Payment of upfront fees |  | $ 25,000 |  |  |  |  | $ 25,000 |  |
Turning Point Therapeutics Inc | Potential Development Regulatory and Sales Based Milestone |  |  |  |  |  |  |  |  |
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items] |  |  |  |  |  |  |  |  |
Additional milestone payments |  | $ 336,000 |  |  |  |  |  |  |
Future milestone payments to be made upon achievement |  |  |  |  |  |  | 146,000 |  |
Cullinan Pearl Corp |  |  |  |  |  |  |  |  |
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items] |  |  |  |  |  |  |  |  |
License agreement date |  |  | 2020-12 |  |  |  |  |  |
Payment of upfront fees |  |  |  |  |  |  | 20,000 |  |
Cullinan Pearl Corp | Potential Development Regulatory and Sales Based Milestone |  |  |  |  |  |  |  |  |
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items] |  |  |  |  |  |  |  |  |
Future milestone payments to be made upon achievement |  |  |  |  |  |  | 211,000 |  |
Takeda Pharmaceutical Company Limited |  |  |  |  |  |  |  |  |
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items] |  |  |  |  |  |  |  |  |
License agreement date |  |  | 2020-12 |  |  |  |  |  |
Payment of upfront fees |  |  |  |  |  |  | 6,000 |  |
Takeda Pharmaceutical Company Limited | Potential Development Regulatory and Sales Based Milestone |  |  |  |  |  |  |  |  |
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items] |  |  |  |  |  |  |  |  |
Future milestone payments to be made upon achievement |  |  |  |  |  |  | $ 481,500 |  |

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