Benefit Plans - Additional Information (Detail) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Retirement Benefits [Abstract]
Service cost	$ 552,000	$ 630,000	$ 1,638,000	$ 1,869,000
Periodic pension income			5,200,000	$ 3,800,000
Expected voluntary contribution for the year 2021			$ 0