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Short-Term and Long-Term Investments - Summary of Available-for-Sale Securities (Detail) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
US Treasury Obligations [Member]
Debt Securities, Available-for-sale [Line Items]
Cost	$ 20,028	$ 45,238
Gross Unrealized Gains	0	0
Gross Unrealized Losses	79	23
Estimated Fair Value	19,949	45,215
Failed Auction Security [Member]
Debt Securities, Available-for-sale [Line Items]
Cost	3,000	3,000
Gross Unrealized Losses	448	361
Estimated Fair Value	$ 2,552	$ 2,639

X

- Definition

Amount, before tax, of unrealized gain in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

+ References

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+ References

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+ References

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