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License and Collaboration Agreements	9 Months Ended
License and Collaboration Agreements	Sep. 30, 2023
Organization, Consolidation and Presentation of Financial Statements [Abstract]
License and Collaboration Agreements	License and Collaboration Agreements The Company has entered into various license and collaboration agreements with third parties to develop and commercialize product candidates. Significant License and Collaboration Arrangements For a description of the material terms of the Company’s significant license and collaboration agreements, see Note 16 to our 2022 Annual Report. During the nine months ended September 30, 2023, the Company did not enter into any new significant license or collaboration agreements. The following includes a description of payments or accruals related to upfront or milestone fees under our significant license and collaboration agreements during the nine months ended September 30, 2023. License and Collaboration Agreement with Entasis Therapeutics Holdings Inc.(“Entasis”) (SUL-DUR) Under the terms of our license and collaboration agreement with Entasis for SUL-DUR, the Company paid a $3.0 million development milestone in the third quarter of 2023, which was accrued in the second quarter of 2023. As of September 30, 2023, the Company may be required to pay an additional aggregate amount of up to $88.6 million in development, regulatory, and sales-based milestones. License Agreement with BMS (Formerly Turning Point Therapeutics Inc (“Turning Point”)) (Repotrectinib) Under the terms of our license agreement with BMS for reprotrectinib, the Company paid a $5.0 million development milestone in the third quarter of 2023, which was accrued in the second quarter of 2023. As of September 30, 2023, the Company may be required to pay an additional aggregate amount of up to $141.0 million in development, regulatory, and sales-based milestones. Other License and Collaboration Arrangements That Are Not Individually Significant The Company made an upfront payment of $10.0 million in the second quarter of 2023 for a new strategic partnership and global license agreement with MediLink Therapeutics (Suzhou) Co., Ltd. for an early-stage next generation DLL3 ADC program, ZL-1310.