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Cash, Cash Equivalents, Restricted Cash and Marketable Securities - Maturities of Marketable Securities Available-for-Sale (Detail) $ in Thousands	Dec. 31, 2021 USD ($)
Amortized Cost
Mature in one year or less	$ 109,760
Mature after one year through two years	0
Total amortized cost	109,760
Estimated Fair Value
Mature in one year or less	109,761
Mature after one year through two years	0
Total estimated fair value	$ 109,761

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- Definition

Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), with single maturity date and allocated without single maturity date, maturing in second through fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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