Business Segment Data - Summary of Segment Reporting Information by Segment (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Segment Reporting Information [Line Items]
Interest expense	$ 14,023	$ 16,954	$ 6,354
Income taxes expense	49,523	45,286	40,788
E&M | Operating segments
Segment Reporting Information [Line Items]
Depreciation and amortization expense	6,358	6,200	5,751
Interest expense	(800)	4,957	2,572
Income taxes expense	38,609	33,143	26,318
Capital expenditures	7,944	4,853	6,373
T&D | Operating segments
Segment Reporting Information [Line Items]
Depreciation and amortization expense	19,099	17,108	15,816
Interest expense	4,027	4,490	1,406
Income taxes expense	20,989	17,399	17,628
Capital expenditures	$ 40,355	$ 30,736	$ 29,471