Goodwill and Other Intangible Assets - Schedule of Goodwill (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2022	Dec. 31, 2021
Goodwill
Goodwill, beginning balance	$ 20,152	$ 20,340
Acquisitions		(22)
Acquisitions	13,770
Foreign currency translation impact	(178)	(166)
Impairment charges	(3,011)
Goodwill, ending balance	30,733	20,152
Rail, Technologies, and Services
Goodwill
Goodwill, beginning balance	14,577	14,743
Acquisitions		0
Acquisitions	5,549
Foreign currency translation impact	(178)	(166)
Impairment charges	0
Goodwill, ending balance	19,948	14,577
Precast Concrete Products
Goodwill
Goodwill, beginning balance	2,564	2,586
Acquisitions		(22)
Acquisitions	8,221
Foreign currency translation impact	0	0
Impairment charges	0
Goodwill, ending balance	10,785	2,564
Steel Products and Measurement
Goodwill
Goodwill, beginning balance	3,011	3,011
Acquisitions		0
Acquisitions	0
Foreign currency translation impact	0	0
Impairment charges	(3,011)
Goodwill, ending balance	$ 0	$ 3,011

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Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Amount of increase in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination.

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Amount of foreign currency translation gain (loss) which increases (decreases) an asset representing future economic benefits from other assets acquired in a business combination that are not individually identified and separately recognized.

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Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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