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Available-for-sale Securities and Fair Value on Financial Instruments - Additional Information (Detail) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022	Dec. 31, 2022
Schedule of Available-for-sale Securities [Line Items]
Credit losses recognized	$ 0	$ 0	$ 0	$ 0	$ 0
Gross realized gains from the sale or maturity of available-for-sale investments		$ 100,000	$ 0	$ 0
Gross realized losses from the sale or maturity of available-for-sale investments	$ 0

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- Definition

Amount of allowance for credit loss 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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Amount of realized gain 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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