Pension and Postretirement Benefits - Additional Information (Detail) - Pension	3 Months Ended
	Mar. 31, 2022	Dec. 31, 2021
Defined Benefit Plan Disclosure [Line Items]
Description of pension plan	During the quarter ended March 31, 2022, the Company amended its qualified pension plan and provided an enhanced benefit for eligible hourly active participants who retire subsequent to April 30, 2022.  The amendment required a pension remeasurement.  The Company elected the use of a practical expedient to perform the pension remeasurement as of February 28, 2022, the month end closest to the approval of the plan amendment. The discount rate for the remeasurement was 3.75% compared with 3.23% prior to the remeasurement.  The enhanced benefit and remeasurement resulted in higher projected pension expense for the year compared with the initial annual pension expense for the qualified plan.
Discount rate for remeasurement	3.75%	3.23%