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Goodwill and Intangible Assets - Goodwill (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2022 USD ($)
Goodwill
Goodwill, Beginning Balance	$ 581,664
Goodwill acquired during the period	1,870
Goodwill, Ending Balance	583,534
Utilities
Goodwill
Goodwill, Beginning Balance	462,905
Goodwill, Ending Balance	462,905
Energy/Renewables
Goodwill
Goodwill, Beginning Balance	66,344
Goodwill acquired during the period	1,870
Goodwill, Ending Balance	68,214
Pipeline
Goodwill
Goodwill, Beginning Balance	52,415
Goodwill, Ending Balance	$ 52,415

X

- Definition

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
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-SubTopic 20
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- Definition

Amount of increase in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination.

+ References

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+ References

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