Business Segment Data - Summary of Segment Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Segment Reporting Information [Line Items]
Total assets	$ 1,288,463	$ 1,052,459
Operating segments
Segment Reporting Information [Line Items]
Total assets	1,175,357	1,031,348
Operating segments | E&M
Segment Reporting Information [Line Items]
Total assets	764,470	657,731
Operating segments | T&D
Segment Reporting Information [Line Items]
Total assets	410,887	373,617
Corporate and Other
Segment Reporting Information [Line Items]
Total assets	161,016	43,628
Eliminations
Segment Reporting Information [Line Items]
Total assets	$ (47,910)	$ (22,517)