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Fair Value Measurements - Schedule of Fair Value Assets and Liabilities Measured on Recurring Basis (Detail) - USD ($) $ in Thousands | Dec. 31, 2025 | Dec. 31, 2024
--- | --- | ---
Assets: |  |
Marketable securities | $ 1,110,207 | $ 972,611
Fair Value Recurring [Member] |  |
Assets: |  |
Cash equivalents | 251,567 | 135,902
Total Assets | 1,361,774 | 1,108,513
Fair Value Recurring [Member] | Commercial Paper [Member] |  |
Assets: |  |
Marketable securities | 107,884 | 251,309
Fair Value Recurring [Member] | Corporate bonds [Member] |  |
Assets: |  |
Marketable securities | 774,506 | 468,617
Fair Value Recurring [Member] | Government and agency securities [Member] |  |
Assets: |  |
Marketable securities | 207,990 | 162,886
Fair Value Recurring [Member] | U.S. treasury bills [Member] |  |
Assets: |  |
Marketable securities | 19,827 | 89,799
Fair Value Recurring [Member] | Related Party Revenue Share Liability [Member] |  |
Liabilities: |  |
Total liabilities | 73,160 | 17,940
Fair Value Recurring [Member] | Fair value, inputs, level 1 [Member] |  |
Assets: |  |
Cash equivalents | 251,567 | 135,902
Total Assets | 251,567 | 135,902
Fair Value Recurring [Member] | Fair value, inputs, level 2 [Member] |  |
Assets: |  |
Total Assets | 1,110,207 | 972,611
Fair Value Recurring [Member] | Fair value, inputs, level 2 [Member] | Commercial Paper [Member] |  |
Assets: |  |
Marketable securities | 107,884 | 251,309
Fair Value Recurring [Member] | Fair value, inputs, level 2 [Member] | Corporate bonds [Member] |  |
Assets: |  |
Marketable securities | 774,506 | 468,617
Fair Value Recurring [Member] | Fair value, inputs, level 2 [Member] | Government and agency securities [Member] |  |
Assets: |  |
Marketable securities | 207,990 | 162,886
Fair Value Recurring [Member] | Fair value, inputs, level 2 [Member] | U.S. treasury bills [Member] |  |
Assets: |  |
Marketable securities | 19,827 | 89,799
Fair Value Recurring [Member] | Fair value, inputs, level 3 [Member] | Related Party Revenue Share Liability [Member] |  |
Liabilities: |  |
Total liabilities | $ 73,160 | $ 17,940

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- Definition Fair value portion of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 825 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 11 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482907/825-10-50-11 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 825 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 11 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482907/825-10-50-11 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 825 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 10 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482907/825-10-50-10 Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 Reference 5: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 + Details
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