Benefit Plans - Additional Information (Detail) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Retirement Benefits [Abstract]
Service cost	$ 357,000	$ 552,000	$ 1,061,000	$ 1,638,000
Periodic pension income			3,000,000	$ 5,200,000
Expected voluntary contribution for the year 2023			$ 0