Segment Information (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022 USD ($)	Sep. 30, 2021 USD ($)	Sep. 30, 2022 USD ($) segment	Sep. 30, 2021 USD ($)
Segment Information
Number of reportable segments | segment			2
Revenue	$ 1,120,012	$ 833,896	$ 3,023,176	$ 2,217,552
Gross Profit	202,224	159,212	530,360	409,136
Operating | Mechanical Services Segment
Segment Information
Revenue	858,768	690,680	2,318,036	1,868,096
Gross Profit	150,872	138,618	416,205	359,151
Operating | Electrical Services Industry
Segment Information
Revenue	261,244	143,216	705,140	349,456
Gross Profit	$ 51,352	$ 20,594	$ 114,155	$ 49,985