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Benefit Plans - Additional Information (Detail) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Retirement Benefits [Abstract]
Service cost	$ 269,000	$ 334,000	$ 800,000	$ 994,000
Periodic pension income			2,700,000	$ 3,000,000
Minimum required pension plan contribution	3,300,000		3,300,000
Available credit balance	$ 64,700,000		64,700,000
Expected voluntary contribution for the year 2025			$ 0

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Amount of actuarial present value of benefits attributed to service rendered by employee for defined benefit plan.

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