Reportable Segments (Details) $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2023 USD ($)	Sep. 30, 2022 USD ($)	Sep. 30, 2023 USD ($) segment	Sep. 30, 2022 USD ($)	Dec. 31, 2022 segment
Segment reporting information
Number of reportable segments | segment			2		3
Revenue	$ 1,529,486	$ 1,284,128	$ 4,199,760	$ 3,091,461
% of Total Revenue	100.00%	100.00%	100.00%	100.00%
Gross Profit	$ 173,895	$ 154,907	$ 430,891	$ 303,501
% of Segment Revenue	11.40%	12.10%	10.30%	9.80%
Utilities
Segment reporting information
Revenue	$ 644,639	$ 613,008	$ 1,813,768	$ 1,447,857
% of Total Revenue	42.10%	47.70%	43.20%	46.80%
Gross Profit	$ 64,654	$ 78,046	$ 164,244	$ 140,755
% of Segment Revenue	10.00%	12.70%	9.10%	9.70%
Energy
Segment reporting information
Revenue	$ 884,847	$ 671,120	$ 2,385,992	$ 1,643,604
% of Total Revenue	57.90%	52.30%	56.80%	53.20%
Gross Profit	$ 109,241	$ 76,861	$ 266,647	$ 162,746
% of Segment Revenue	12.30%	11.50%	11.20%	9.90%