Comprehensive Income and Accumulated Other Comprehensive Income (Loss) - Summary of Effects of Reclassifications from Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Amortization of pension and other postretirement benefit plan items:
Total before tax	$ 87,662	$ 66,127	$ 152,410
Tax benefit	25,205	11,724	42,519
Total net of tax	63,925	$ (55,162)	$ (377,015)
Amount Reclassified from Accumulated Other Comprehensive Income (Loss) | Actuarial losses
Amortization of pension and other postretirement benefit plan items:
Other nonoperating expense (income)	3,721
Amount Reclassified from Accumulated Other Comprehensive Income (Loss) | Prior service cost
Amortization of pension and other postretirement benefit plan items:
Other nonoperating expense (income)	110
Amount Reclassified from Accumulated Other Comprehensive Income (Loss) | Pension and Other Postretirement Benefit Plans
Amortization of pension and other postretirement benefit plan items:
Total before tax	3,831
Tax benefit	(912)
Total net of tax	2,919
Amount Reclassified from Accumulated Other Comprehensive Income (Loss) | Foreign Currency Translation Component
Amortization of pension and other postretirement benefit plan items:
Other nonoperating expense (income)	$ (1,000)