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Cash, Cash Equivalents, Restricted Cash and Marketable Securities - Maturities of Marketable Securities Available-for-Sale (Detail) $ in Thousands	Sep. 30, 2022 USD ($)
Amortized Cost
Mature in one year or less	$ 375,208
Mature after one year through two years	14,998
Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, Amortized Cost, Total	390,206
Estimated Fair Value
Mature in one year or less	372,999
Mature after one year through two years	14,911
Total estimated fair value	$ 387,910

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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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