Benefit Plans - Schedule of Assumptions (Detail)	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Pension plans
Benefit obligation assumptions
Discount rate	4.83%	4.26%	4.77%
Rate of compensation increase	3.78%	3.70%	3.80%
Net periodic benefit expense assumptions
Discount rate	4.26%	4.77%	2.21%
Expected long-term return on plan assets	4.36%	4.76%	2.89%
Rate of compensation increase	3.70%	3.80%	3.61%
Other post-retirement plans
Benefit obligation assumptions
Discount rate	5.31%	4.84%	5.11%
Net periodic benefit expense assumptions
Discount rate	4.84%	5.11%	2.34%