Benefit Plans - Additional Information (Detail) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Retirement Benefits [Abstract]
Service cost	$ 330,000	$ 354,000	$ 660,000	$ 704,000
Periodic pension income			2,000,000	$ 2,000,000
Minimum required pension plan contribution	2,600,000		2,600,000
Available credit balance	$ 64,200,000		64,200,000
Expected voluntary contribution for the year 2024			$ 0