Marketable Securities and Fair Value of Financial Assets and Liabilities - Schedule of Financial Assets and Liabilities at Fair Value on Recurring Basis (Detail) - Recurring Basis [Member] - USD ($) $ in Thousands |
Jun. 30, 2026 |
Dec. 31, 2025 |
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| Assets: | ||
| Total assets | $ 764,958 | $ 801,855 |
| Level 1 [Member] | ||
| Assets: | ||
| Total assets | 153,830 | 213,102 |
| Level 2 [Member] | ||
| Assets: | ||
| Total assets | 611,128 | 588,753 |
| Money Market Funds [Member] | ||
| Assets: | ||
| Cash equivalents | 153,830 | 213,102 |
| Money Market Funds [Member] | Level 1 [Member] | ||
| Assets: | ||
| Cash equivalents | 153,830 | 213,102 |
| U.S. Treasury Bills and Notes [Member] | ||
| Assets: | ||
| Marketable Securities | 611,128 | 588,753 |
| U.S. Treasury Bills and Notes [Member] | Level 2 [Member] | ||
| Assets: | ||
| Marketable Securities | $ 611,128 | $ 588,753 |
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- Definition Fair value portion of asset recognized for present right to economic benefit. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- References No definition available.
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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. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Fair value portion of investment securities, including, but not limited to, marketable securities, derivative financial instruments, and investments accounted for under the equity method. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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