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Prepaid and Other Current Assets - Schedule of Prepaid and Other Current Assets (Detail) - USD ($) $ in Thousands | Dec. 31, 2021 | Dec. 31, 2020
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Prepaid Expense and Other Assets [Abstract] |  |
Prepaid expenses | $ 14,787 | $ 2,628
Government grant receivables | 2,563 | 5,870
Other current assets | 2,104 | 914
Total prepaids and other current assets | $ 19,454 | $ 9,412

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- Definition Carrying amount as of the balance sheet date of amounts due under the terms of governmental, corporate, or foundation grants. For classified balance sheets, represents the current amount receivable, that is amounts expected to be collected within one year or the normal operating cycle, if longer. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.8) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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