Goodwill and Intangible Assets (Tables)

6 Months Ended

Jun. 30, 2023

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Amounts Related to Goodwill

Amounts related to goodwill are as follows:

	Assessment, Permitting and Response			Measurement and Analysis			Remediation and Reuse			Total
Balance as of December 31, 2022	$	185,116		$	86,205		$	52,547		$	323,868
Goodwill acquired during the period		—			7,146			37,735			44,881
Acquisitions measurement period adjustments		(170	)		(6	)		12			(164	)
Foreign currency translation impact		—			—			(22	)		(22	)
Balance as of June 30, 2023	$	184,946		$	93,345		$	90,272		$	368,563

Schedule of Amounts Related to Finite-Lived Intangible Assets

Amounts related to finite-lived intangible assets are as follows:

June 30, 2023	Estimated Useful Life	Gross Balance		Accumulated Amortization		Total Intangible Assets—Net
Finite lived intangible assets
Customer relationships	2-15 years	$	214,821	$	105,385	$	109,436
Covenants not to compete	4-5 years		33,996		29,675		4,321
Trade names	1-5 years		22,213		19,371		2,842
Proprietary software	3-5 years		25,135		17,715		7,420
Patent	16 years		17,479		4,129		13,350
Total other intangible assets    —net		$	313,644	$	176,275	$	137,369

December 31, 2022	Estimated Useful Life	Gross Balance		Accumulated Amortization		Total Intangible Assets—Net
Finite lived intangible assets
Customer relationships	2-15 years	$	208,024	$	95,768	$	112,256
Covenants not to compete	4-5 years		33,542		28,280		5,262
Trade names	1-5 years		22,061		18,256		3,805
Proprietary software	3-5 years		22,698		15,810		6,888
Patent	16 years		17,479		3,583		13,896
Total other intangible assets    —net		$	303,804	$	161,697	$	142,107

Schedule of Future Amortization Expense

Future amortization expense is estimated to be as follows for each of the five following years and thereafter:

December 31,
2023 (remaining)	$	14,027
2024		25,239
2025		18,349
2026		14,498
2027		13,921
Thereafter		51,335
Total	$	137,369