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Business Segments - Reconciliation of Assets from Segment to Consolidated (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Segment Reporting Information
TOTAL ASSETS	$ 326,401	$ 312,401
Operating Segments | Rail, Technologies, and Services
Segment Reporting Information
TOTAL ASSETS	167,565	156,638
Operating Segments | Infrastructure Solutions
Segment Reporting Information
TOTAL ASSETS	129,852	130,247
Unallocated corporate assets
Segment Reporting Information
TOTAL ASSETS	$ 28,984	$ 25,516

X

- Definition

Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

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