Goodwill and Intangible Assets - Schedule of Amounts Related to Goodwill (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2024 USD ($)
Goodwill [Line Items]
Beginning balance	$ 364,449
Goodwill acquired during the period	99,249
Prior year acquisitions measurement period adjustments	(320)
Foreign currency translation impact	72
Ending balance	463,450
Assessment, Permitting and Response
Goodwill [Line Items]
Beginning balance	184,946
Ending balance	184,946
Measurement and Analysis
Goodwill [Line Items]
Beginning balance	93,890
Ending balance	93,890
Remediation and Reuse Segment
Goodwill [Line Items]
Beginning balance	85,613
Goodwill acquired during the period	99,249
Prior year acquisitions measurement period adjustments	(320)
Foreign currency translation impact	72
Ending balance	$ 184,614