Goodwill and Intangible Assets (Tables)

3 Months Ended

Mar. 31, 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		—			844			1,965		2,809
Acquisitions measurement period adjustments		(169	)		(10	)		—		(179	)
Balance as of March 31, 2023	$	184,947		$	87,039		$	54,512	$	326,498

Schedule of Amounts Related to Finite-Lived Intangible Assets

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

March 31, 2023	Estimated Useful Life	Gross Balance		Accumulated Amortization		Total Intangible Assets—Net
Finite lived intangible assets
Customer relationships	2-15 years	$	209,426	$	100,404	$	109,022
Covenants not to compete	4-5 years		33,805		29,020		4,785
Trade names	1-5 years		22,167		18,708		3,459
Proprietary software	3-5 years		23,324		16,942		6,382
Patent	16 years		17,479		3,856		13,623
Total other intangible assets    —net		$	306,201	$	168,930	$	137,271

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)		20,920
2024		24,607
2025		17,727
2026		13,952
2027		13,429
Thereafter		46,636
Total	$	137,271