Fair Value Measurements - Additional Information (Detail) $ in Thousands	3 Months Ended	6 Months Ended
	Jun. 30, 2023 USD ($)	Jun. 30, 2023 USD ($)
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Proceeds from the sales and maturities of securities available-for-sale		$ 27,000
Transfers between Level 1, Level 2 and Level 3 securities	$ 0	0
Realized loss on investments		100
Realized gain	1,600
Unrealized gain on investments		2,300
Unrealized loss	200
Collateral deposit with bank	0	0
Credit losses on available-for-sale securities	$ 0	$ 0