Pensions and Other Post-Employment Benefits - Schedule of Net Benefit Costs (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Pension Benefits
Defined Benefit Plan Disclosure
Service cost	$ 1,722	$ 1,403	$ 5,918
Interest cost	4,186	5,234	6,292
Expected return on plan assets	(9,881)	(9,333)	(8,777)
Amortization of prior service credit	(82)	0	483
Recognized net actuarial loss (gain)	2,344	1,678	3,304
Net periodic benefit (credit) cost	(1,711)	(1,018)	7,220
Net pension curtailments and settlements	0	94	3,328
Total net benefit (credit) cost	(1,711)	(924)	10,548
Other Benefits
Defined Benefit Plan Disclosure
Service cost	80	59	67
Interest cost	116	213	399
Expected return on plan assets	0	0	0
Amortization of prior service credit	(1,497)	(1,497)	(1,497)
Recognized net actuarial loss (gain)	(275)	(332)	(93)
Net periodic benefit (credit) cost	(1,576)	(1,557)	(1,124)
Net pension curtailments and settlements	0	0	0
Total net benefit (credit) cost	$ (1,576)	$ (1,557)	$ (1,124)