Retirement Plans - Periodic Pension Cost, Next Fiscal Year (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Defined Benefit Plan Disclosure [Line Items]
Interest cost		$ 872	$ 823
Estimated 2023 net periodic pension cost		$ 1,204	$ 1,209
Scenario, Forecast [Member]
Defined Benefit Plan Disclosure [Line Items]
Interest cost	$ 1,217
Estimated 2023 net periodic pension cost	$ 1,217