Summary of Significant Accounting Policies - Additional Information (Detail) |
3 Months Ended | |
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Mar. 31, 2022
USD ($)
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Mar. 31, 2021
USD ($)
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Summary Of Significant Accounting Policies [Line Items] | ||
Maturity period of highly liquid investments | three months or less | |
Realized gains or losses on marketable securities | $ 0 | $ 0 |
Number of securities in unrealized loss position for more than 12 months | 0 | 0 |
Grants receivable recognized | $ 2,100,000 | $ 900,000 |
Grants receivable | 3,500,000 | $ 4,100,000 |
Grants remaining to be awarded | 6,000,000.0 | |
Level 1 [Member] | ||
Summary Of Significant Accounting Policies [Line Items] | ||
Liabilities | 0 | |
Level 2 [Member] | ||
Summary Of Significant Accounting Policies [Line Items] | ||
Liabilities | $ 0 |
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- Definition Decrease in research and development expenses related to grants recognized. No definition available.
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- Definition Grants remaining to be awarded. No definition available.
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- Definition Highly Liquid Investments Maturity Period No definition available.
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- Definition Receivable from grants for costs incurred. No definition available.
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- Definition Summary of Significant Accounting Policies [Line Items] No definition available.
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- Definition Number of investments in debt securities measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in continuous unrealized loss position for 12 months or longer, without an allowance for credit loss. Includes beneficial interest in securitized financial asset. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Fair value of financial and nonfinancial obligations. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of realized gain (loss) on investment in marketable security, including other-than-temporary impairment (OTTI). No definition available.
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