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Fair Value of Financial Instruments - Schedule of Fair Value of Financial Assets and Liabilities (Details) - USD ($) $ in Thousands | Sep. 30, 2025 | Dec. 31, 2024
--- | --- | ---
Commercial Paper |  |
Assets |  |
Marketable securities | $ 329,181 | $ 181,296
Harvard |  |
Liabilities |  |
Success payment liability | 2,900 | 3,900
Broad Institute |  |
Liabilities |  |
Success payment liability | 3,600 | 4,500
Recurring | Carrying Amount |  |
Assets |  |
Total assets | 1,074,970 | 850,559
Liabilities |  |
Derivative settlement liability | 6,654 | 5,404
Total liabilities | 21,054 | 14,935
Recurring | Carrying Amount | Money Market Funds |  |
Assets |  |
Cash equivalents | 258,003 | 281,786
Recurring | Carrying Amount | Commercial Paper |  |
Assets |  |
Cash equivalents | 9,957 |
Marketable securities | 329,181 | 181,296
Recurring | Carrying Amount | Corporate Notes |  |
Assets |  |
Marketable securities | 156,764 | 100,165
Recurring | Carrying Amount | U.S. Treasury Securities |  |
Assets |  |
Marketable securities | 284,278 | 164,770
Recurring | Carrying Amount | U.S Government Securities |  |
Assets |  |
Marketable securities | 27,877 | 114,761
Recurring | Carrying Amount | Corporate Equity Securities |  |
Assets |  |
Equity securities included in marketable securities | 8,910 | 7,781
Recurring | Carrying Amount | Harvard |  |
Liabilities |  |
Success payment liability | 2,900 | 3,900
Recurring | Carrying Amount | Broad Institute |  |
Liabilities |  |
Success payment liability | 3,600 | 4,500
Recurring | Carrying Amount | Consideration of Technology Liabilities |  |
Liabilities |  |
Contingent consideration liability |  | 496
Recurring | Carrying Amount | Contingent Consideration of Milestones Liabilities |  |
Liabilities |  |
Contingent consideration liability | 7,900 |
Recurring | Carrying Amount | Contingent Consideration of Product Liabilities |  |
Liabilities |  |
Contingent consideration liability |  | 635
Recurring | Fair Value |  |
Assets |  |
Total assets | 1,074,970 | 850,559
Liabilities |  |
Derivative settlement liability | 6,654 | 5,404
Total liabilities | 21,054 | 14,935
Recurring | Fair Value | Money Market Funds |  |
Assets |  |
Cash equivalents | 258,003 | 281,786
Recurring | Fair Value | Commercial Paper |  |
Assets |  |
Cash equivalents | 9,957 |
Marketable securities | 329,181 | 181,296
Recurring | Fair Value | Corporate Notes |  |
Assets |  |
Marketable securities | 156,764 | 100,165
Recurring | Fair Value | U.S. Treasury Securities |  |
Assets |  |
Marketable securities | 284,278 | 164,770
Recurring | Fair Value | U.S Government Securities |  |
Assets |  |
Marketable securities | 27,877 | 114,761
Recurring | Fair Value | Corporate Equity Securities |  |
Assets |  |
Equity securities included in marketable securities | 8,910 | 7,781
Recurring | Fair Value | Harvard |  |
Liabilities |  |
Success payment liability | 2,900 | 3,900
Recurring | Fair Value | Broad Institute |  |
Liabilities |  |
Success payment liability | 3,600 | 4,500
Recurring | Fair Value | Consideration of Technology Liabilities |  |
Liabilities |  |
Contingent consideration liability |  | 496
Recurring | Fair Value | Contingent Consideration of Milestones Liabilities |  |
Liabilities |  |
Contingent consideration liability | 7,900 |
Recurring | Fair Value | Contingent Consideration of Product Liabilities |  |
Liabilities |  |
Contingent consideration liability |  | 635
Recurring | Fair Value | Level 1 |  |
Assets |  |
Total assets | 266,913 | 289,567
Recurring | Fair Value | Level 1 | Money Market Funds |  |
Assets |  |
Cash equivalents | 258,003 | 281,786
Recurring | Fair Value | Level 1 | Corporate Equity Securities |  |
Assets |  |
Equity securities included in marketable securities | 8,910 | 7,781
Recurring | Fair Value | Level 2 |  |
Assets |  |
Total assets | 808,057 | 560,992
Recurring | Fair Value | Level 2 | Commercial Paper |  |
Assets |  |
Cash equivalents | 9,957 |
Marketable securities | 329,181 | 181,296
Recurring | Fair Value | Level 2 | Corporate Notes |  |
Assets |  |
Marketable securities | 156,764 | 100,165
Recurring | Fair Value | Level 2 | U.S. Treasury Securities |  |
Assets |  |
Marketable securities | 284,278 | 164,770
Recurring | Fair Value | Level 2 | U.S Government Securities |  |
Assets |  |
Marketable securities | 27,877 | 114,761
Recurring | Fair Value | Level 3 |  |
Liabilities |  |
Derivative settlement liability | 6,654 | 5,404
Total liabilities | 21,054 | 14,935
Recurring | Fair Value | Level 3 | Harvard |  |
Liabilities |  |
Success payment liability | 2,900 | 3,900
Recurring | Fair Value | Level 3 | Broad Institute |  |
Liabilities |  |
Success payment liability | 3,600 | 4,500
Recurring | Fair Value | Level 3 | Consideration of Technology Liabilities |  |
Liabilities |  |
Contingent consideration liability |  | 496
Recurring | Fair Value | Level 3 | Contingent Consideration of Milestones Liabilities |  |
Liabilities |  |
Contingent consideration liability | $ 7,900 |
Recurring | Fair Value | Level 3 | Contingent Consideration of Product Liabilities |  |
Liabilities |  |
Contingent consideration liability |  | $ 635

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