Pension and Other Post-Retirement Benefit Plans - Components of Net Periodic Benefit Cost (Details) - Pension Plan - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
U.S. Pension and Other Post-Retirement Benefit Plans
Defined Benefit Plan Disclosure [Line Items]
Interest cost	$ 193	$ 206	$ 388	$ 414
Expected return on plan assets	(208)	(553)	(415)	(1,106)
Amortization of prior service cost	2	2	4	4
Recognized actuarial loss	81	66	165	140
Net (benefit) cost	68	(279)	142	(548)
Non-U.S. Pension Plan
Defined Benefit Plan Disclosure [Line Items]
Interest cost	200	162	415	323
Expected return on plan assets	(258)	(254)	(533)	(504)
Amortization of prior service cost	13	14	26	28
Recognized actuarial loss	153	243	317	482
Net (benefit) cost	$ 108	$ 165	$ 225	$ 329