Commitments and Contingent Liabilities - Narratives (Details) $ in Thousands		12 Months Ended
	Mar. 13, 2019 USD ($)	Dec. 31, 2021 USD ($) party	Dec. 31, 2018 USD ($)	Sep. 30, 2021 USD ($)	Dec. 31, 2020 USD ($)	Sep. 04, 2020 USD ($)	Jun. 05, 2017 company
Product Liability Contingency
Current portion of accrued settlement		$ 8,000			$ 8,000
Long-term portion of accrued settlement (Note 18)		16,000			$ 24,000
Number of companies receiving general notice letter | company							140
Present value or proposed remedial work		1,100,000
Undiscovered remedial work		$ 1,700,000
Remedial work anticipated clean up period		13 years
Number of potentially responsible parties included in agreement | party		100
Accrual for environmental loss contingencies, obligations removed						$ 3,460
UPRR
Product Liability Contingency
Purchase commitment	$ 48,000
Annual commitment amount	8,000			$ 6,000
UPRR
Product Liability Contingency
Litigation settlement amount		$ 24,000	$ 50,000
Litigation settlement amount, current	2,000
Litigation settlement amount, non-current	48,000
Amounts reclassified to accrued settlement	$ 6,600
Legal fees			$ 43,400