Goodwill and Other Intangible Assets - Schedule of Goodwill (Details) $ in Thousands	9 Months Ended
	Sep. 30, 2024 USD ($)
Goodwill
Goodwill, beginning balance	$ 32,587
Foreign currency translation impact	738
Goodwill, ending balance	32,880
Cougar purchase accounting adjustment
Goodwill
Cougar purchase accounting adjustment	(445)
Rail, Technologies, and Services
Goodwill
Goodwill, beginning balance	20,466
Foreign currency translation impact	738
Goodwill, ending balance	21,204
Rail, Technologies, and Services | Cougar purchase accounting adjustment
Goodwill
Cougar purchase accounting adjustment	0
Infrastructure Solutions
Goodwill
Goodwill, beginning balance	12,121
Foreign currency translation impact	0
Goodwill, ending balance	11,676
Infrastructure Solutions | Cougar purchase accounting adjustment
Goodwill
Cougar purchase accounting adjustment	$ (445)