Segment Information - Schedule of Significant Expense Categories and Amounts Align with Segment-Level Information (Details) - USD ($) $ in Thousands |
3 Months Ended | 6 Months Ended | ||||
|---|---|---|---|---|---|---|
Jun. 30, 2026 |
Mar. 31, 2026 |
Jun. 30, 2025 |
Mar. 31, 2025 |
Jun. 30, 2026 |
Jun. 30, 2025 |
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| Revenue: | ||||||
| Collaboration revenue | $ 6,314 | $ 10,130 | $ 13,538 | $ 18,948 | ||
| Operating expenses: | ||||||
| Research and development personnel-related (excluding stock-based compensation) | 20,405 | 19,279 | 40,218 | 37,290 | ||
| External research and development costs - GB-0895 | 20,490 | 13,280 | 36,076 | 17,074 | ||
| External - discovery related costs and other | 16,879 | 21,122 | 33,337 | 40,292 | ||
| General and administrative personnel-related (excluding stock-based compensation) | 4,545 | 4,457 | 9,185 | 8,888 | ||
| External - General and administrative | 4,147 | 3,332 | 9,318 | 6,740 | ||
| Stock-based compensation | 8,238 | 5,487 | 14,633 | 10,231 | ||
| Depreciation expense | 3,224 | 3,322 | 6,497 | 6,736 | ||
| Other segment expenses | 62 | 31 | 367 | 48 | ||
| Interest income | (4,629) | (3,789) | (7,542) | (8,070) | ||
| Interest expense | 155 | 307 | 337 | 675 | ||
| Provision for income tax | 53 | 44 | 81 | 100 | ||
| Net loss | (67,255) | (56,742) | (128,969) | (101,056) | ||
| Net loss attributable to non-controlling interests | 0 | (4,313) | (268) | (6,942) | ||
| Net loss attributable to Generate Biomedicines, Inc. stockholders | $ (67,255) | $ (61,446) | $ (52,429) | $ (41,685) | $ (128,701) | $ (94,114) |
| X | ||||||||||
- Definition External discovery related costs and other. No definition available.
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| X | ||||||||||
- Definition External general and administrative. No definition available.
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| X | ||||||||||
- Definition General and administrative personnel-related (excluding stock-based compensation). No definition available.
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| X | ||||||||||
- Definition Research and development personnel-related (excluding stock-based compensation). No definition available.
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| X | ||||||||||
- Definition Amount of expense for award under share-based payment arrangement. Excludes amount capitalized. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition The expense recognized in the current period that allocates the cost of nonproduction tangible assets over their useful lives. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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| X | ||||||||||
- Definition Amount of interest expense classified as nonoperating. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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| X | ||||||||||
- Definition Amount before accretion (amortization) of purchase discount (premium) of interest income on nonoperating securities. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition The portion of profit or loss for the period, net of income taxes, which is attributable to the parent. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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| X | ||||||||||
- Definition Amount of Net Income (Loss) attributable to noncontrolling interest. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- References No definition available.
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| X | ||||||||||
- Definition The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition The amount of costs incurred under a research and development arrangement accounted for as a contract to perform research and development for others. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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| X | ||||||||||
- References No definition available.
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| X | ||||||||||
- Definition Amount of other expense (income) and loss (gain) calculated as difference between segment revenue and separately disclosed expense category to arrive at segment profit (loss). Reference 1: http://www.xbrl.org/2003/role/exampleRef
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