Benefit Plans - Net Periodic Benefit Cost (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Defined Benefit Pension Plans
Defined Benefit Plan, Net Periodic Benefit Cost (Credit)
Interest cost	$ 3,453	$ 2,569
Defined Benefit Pension Plans | U.S.
Defined Benefit Plan, Net Periodic Benefit Cost (Credit)
Interest cost	3,453	2,569	$ 2,210
Expected return on plan assets	(3,305)	(3,433)	(4,360)
Settlement loss (gain) recognized	61	38	(26)
Net periodic expense (benefit)	209	(826)	(2,176)
Defined Benefit Pension Plans | Foreign
Defined Benefit Plan, Net Periodic Benefit Cost (Credit)
Interest cost			255
Expected return on plan assets			(255)
Settlement loss (gain) recognized			2,084
Net periodic expense (benefit)			2,084
Other Postretirement Benefits Plans
Defined Benefit Plan, Net Periodic Benefit Cost (Credit)
Interest cost	24	18	17
Amortization of prior service credit	(125)	(210)	(232)
Amortization of net loss	(2)	3	5
Net periodic expense (benefit)	$ (103)	$ (189)	$ (210)