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Fair Value Measurements - Summary of fair value measurements on a recurring basis and the level of inputs (Detail) - Fair Value, Recurring [Member] - USD ($) $ in Thousands | Dec. 31, 2024 | Dec. 31, 2023
--- | --- | ---
Assets: |  |  |
Cash and cash equivalents |  | $ 56,840 | $ 38,081
Total assets |  | 366,281 | 458,346
Liabilities: |  |  |
Public warrants |  | 70,688 | 23,004
Short-term Investments [Member] |  |  |
Assets: |  |  |
Investments |  | 285,896 | 319,776
Other Long-term Investments [Member] |  |  |
Assets: |  |  |
Investments |  | 23,545 | 100,489
Cash and money market funds [Member] |  |  |
Assets: |  |  |
Cash and cash equivalents | [1] | 33,204 | 25,131
Commercial Paper [Member] | Short-term Investments [Member] |  |  |
Assets: |  |  |
Investments |  |  | 16,360
Municipal Bonds [Member] | Short-term Investments [Member] |  |  |
Assets: |  |  |
Investments |  |  | 4,947
Corporate Notes And Bonds [Member] | Short-term Investments [Member] |  |  |
Assets: |  |  |
Investments |  | 43,868 | 130,423
Corporate Notes And Bonds [Member] | Other Long-term Investments [Member] |  |  |
Assets: |  |  |
Investments |  | 1,924 | 44,554
US Government and Agency [Member] |  |  |
Assets: |  |  |
Cash and cash equivalents |  | 23,636 | 12,950
US Government and Agency [Member] | Short-term Investments [Member] |  |  |
Assets: |  |  |
Investments |  | 242,028 | 168,046
US Government and Agency [Member] | Other Long-term Investments [Member] |  |  |
Assets: |  |  |
Investments |  | 21,621 | 55,935
Quoted Prices in Active Markets (Level 1) [Member] |  |  |
Assets: |  |  |
Cash and cash equivalents |  | 33,204 | 25,131
Total assets |  | 33,204 | 25,131
Liabilities: |  |  |
Public warrants |  | 70,688 | 23,004
Quoted Prices in Active Markets (Level 1) [Member] | Short-term Investments [Member] |  |  |
Assets: |  |  |
Investments |  | 0 | 0
Quoted Prices in Active Markets (Level 1) [Member] | Other Long-term Investments [Member] |  |  |
Assets: |  |  |
Investments |  | 0 | 0
Quoted Prices in Active Markets (Level 1) [Member] | Cash and money market funds [Member] |  |  |
Assets: |  |  |
Cash and cash equivalents | [1] | 33,204 | 25,131
Quoted Prices in Active Markets (Level 1) [Member] | Commercial Paper [Member] | Short-term Investments [Member] |  |  |
Assets: |  |  |
Investments |  |  | 0
Quoted Prices in Active Markets (Level 1) [Member] | Municipal Bonds [Member] | Short-term Investments [Member] |  |  |
Assets: |  |  |
Investments |  |  | 0
Quoted Prices in Active Markets (Level 1) [Member] | Corporate Notes And Bonds [Member] | Short-term Investments [Member] |  |  |
Assets: |  |  |
Investments |  | 0 | 0
Quoted Prices in Active Markets (Level 1) [Member] | Corporate Notes And Bonds [Member] | Other Long-term Investments [Member] |  |  |
Assets: |  |  |
Investments |  | 0 | 0
Quoted Prices in Active Markets (Level 1) [Member] | US Government and Agency [Member] |  |  |
Assets: |  |  |
Cash and cash equivalents |  | 0 | 0
Quoted Prices in Active Markets (Level 1) [Member] | US Government and Agency [Member] | Short-term Investments [Member] |  |  |
Assets: |  |  |
Investments |  | 0 | 0
Quoted Prices in Active Markets (Level 1) [Member] | US Government and Agency [Member] | Other Long-term Investments [Member] |  |  |
Assets: |  |  |
Investments |  | 0 | 0
Significant Other Observable Inputs (Level 2) [Member] |  |  |
Assets: |  |  |
Cash and cash equivalents |  | 23,636 | 12,950
Total assets |  | 333,077 | 433,215
Liabilities: |  |  |
Public warrants |  | 0 | 0
Significant Other Observable Inputs (Level 2) [Member] | Short-term Investments [Member] |  |  |
Assets: |  |  |
Investments |  | 285,896 | 319,776
Significant Other Observable Inputs (Level 2) [Member] | Other Long-term Investments [Member] |  |  |
Assets: |  |  |
Investments |  | 23,545 | 100,489
Significant Other Observable Inputs (Level 2) [Member] | Cash and money market funds [Member] |  |  |
Assets: |  |  |
Cash and cash equivalents | [1] | 0 | 0
Significant Other Observable Inputs (Level 2) [Member] | Commercial Paper [Member] | Short-term Investments [Member] |  |  |
Assets: |  |  |
Investments |  |  | 16,360
Significant Other Observable Inputs (Level 2) [Member] | Municipal Bonds [Member] | Short-term Investments [Member] |  |  |
Assets: |  |  |
Investments |  |  | 4,947
Significant Other Observable Inputs (Level 2) [Member] | Corporate Notes And Bonds [Member] | Short-term Investments [Member] |  |  |
Assets: |  |  |
Investments |  | 43,868 | 130,423
Significant Other Observable Inputs (Level 2) [Member] | Corporate Notes And Bonds [Member] | Other Long-term Investments [Member] |  |  |
Assets: |  |  |
Investments |  | 1,924 | 44,554
Significant Other Observable Inputs (Level 2) [Member] | US Government and Agency [Member] |  |  |
Assets: |  |  |
Cash and cash equivalents |  | 23,636 | 12,950
Significant Other Observable Inputs (Level 2) [Member] | US Government and Agency [Member] | Short-term Investments [Member] |  |  |
Assets: |  |  |
Investments |  | 242,028 | 168,046
Significant Other Observable Inputs (Level 2) [Member] | US Government and Agency [Member] | Other Long-term Investments [Member] |  |  |
Assets: |  |  |
Investments |  | 21,621 | 55,935
Unobservable Inputs (Level 3) [Member] |  |  |
Assets: |  |  |
Cash and cash equivalents |  | 0 | 0
Total assets |  | 0 | 0
Liabilities: |  |  |
Public warrants |  | 0 | 0
Unobservable Inputs (Level 3) [Member] | Short-term Investments [Member] |  |  |
Assets: |  |  |
Investments |  | 0 | 0
Unobservable Inputs (Level 3) [Member] | Other Long-term Investments [Member] |  |  |
Assets: |  |  |
Investments |  | 0 | 0
Unobservable Inputs (Level 3) [Member] | Cash and money market funds [Member] |  |  |
Assets: |  |  |
Cash and cash equivalents | [1] | 0 | 0
Unobservable Inputs (Level 3) [Member] | Commercial Paper [Member] | Short-term Investments [Member] |  |  |
Assets: |  |  |
Investments |  |  | 0
Unobservable Inputs (Level 3) [Member] | Municipal Bonds [Member] | Short-term Investments [Member] |  |  |
Assets: |  |  |
Investments |  |  | 0
Unobservable Inputs (Level 3) [Member] | Corporate Notes And Bonds [Member] | Short-term Investments [Member] |  |  |
Assets: |  |  |
Investments |  | 0 | 0
Unobservable Inputs (Level 3) [Member] | Corporate Notes And Bonds [Member] | Other Long-term Investments [Member] |  |  |
Assets: |  |  |
Investments |  | 0 | 0
Unobservable Inputs (Level 3) [Member] | US Government and Agency [Member] |  |  |
Assets: |  |  |
Cash and cash equivalents |  | 0 | 0
Unobservable Inputs (Level 3) [Member] | US Government and Agency [Member] | Short-term Investments [Member] |  |  |
Assets: |  |  |
Investments |  | 0 | 0
Unobservable Inputs (Level 3) [Member] | US Government and Agency [Member] | Other Long-term Investments [Member] |  |  |
Assets: |  |  |
Investments |  | $ 0 | $ 0
[1] | Includes money market funds associated with the Company’s overnight investment sweep account and cash collateralizing the Company's letter of credit and corporate credit cards.

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- Definition Fair value portion of asset recognized for present right to economic benefit. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 100 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482078/820-10-55-100 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -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 3: http://www.xbrl.org/2003/role/disclosureRef -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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- 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/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 2: 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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