Segment Information (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023 USD ($)	Jun. 30, 2022 USD ($)	Jun. 30, 2023 USD ($) segment	Jun. 30, 2022 USD ($)
Segment Information
Number of reportable segments | segment			2
Revenue	$ 1,296,430	$ 1,017,948	$ 2,471,070	$ 1,903,164
Gross Profit	227,920	174,992	433,325	328,136
Operating | Mechanical Services Segment
Segment Information
Revenue	975,923	776,757	1,894,538	1,459,268
Gross Profit	173,481	138,605	337,548	265,333
Operating | Electrical Services Industry
Segment Information
Revenue	320,507	241,191	576,532	443,896
Gross Profit	$ 54,439	$ 36,387	$ 95,777	$ 62,803