Pensions and Other Post-Employment Benefits - Schedule of Amounts in Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Pension Benefits
Defined Benefit Plan Disclosure
Net actuarial loss (gain)	$ 42,440	$ 49,472
Net prior service cost (credit)	(695)	(799)
Net transition obligation/(asset)	637	0
Net amount recognized	42,382	48,673
Other Benefits
Defined Benefit Plan Disclosure
Net actuarial loss (gain)	(4,044)	(3,973)
Net prior service cost (credit)	(2,054)	(3,552)
Net transition obligation/(asset)	0	0
Net amount recognized	$ (6,098)	$ (7,525)