Retirement Plans - Schedule of Weighted-Average Assumptions Used to Determine Benefit Obligation (Detail) - Benefit Obligation [Member]	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Net Periodic Benefit Cost Assumptions [Line Items]
Discount rate	2.38%	1.83%	2.88%
Health care cost trend: Initial	5.90%	5.95%	5.55%
Health care cost trend: Ultimate	4.75%	4.75%	4.75%
Year ultimate reached	2027	2026	2025