Goodwill and Intangible Assets - Schedule of Amounts Related to Goodwill (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2023 USD ($)
Goodwill [Line Items]
Beginning balance	$ 323,868
Goodwill acquired during the period	2,809
Acquisitions measurement period adjustments	(179)
Ending balance	326,498
Assessment, Permitting and Response
Goodwill [Line Items]
Beginning balance	185,116
Acquisitions measurement period adjustments	(169)
Ending balance	184,947
Measurement and Analysis
Goodwill [Line Items]
Beginning balance	86,205
Goodwill acquired during the period	844
Acquisitions measurement period adjustments	(10)
Ending balance	87,039
Remediation and Reuse Segment
Goodwill [Line Items]
Beginning balance	52,547
Goodwill acquired during the period	1,965
Ending balance	$ 54,512