Retirement Plans - Weighted Average Assumptions of Pension Benefit Obligation and Net Periodic Pension Benefit Cost (Detail)	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Benefit Obligation [Abstract]
Discount rate, pension benefit obligation	4.75%	5.25%
Weighted average expected long-term rate of return on plan assets, pension benefit obligation	7.00%	7.00%
Discount rate, net periodic pension benefit cost	5.25%	2.50%	2.25%
Weighted average expected long-term rate of return on plan assets, net periodic pension benefit cost	7.00%	7.00%	7.00%