Goodwill and Intangible Assets (Tables)

3 Months Ended

Mar. 31, 2022

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, 2021	$	176,541		$	83,770	$	51,633	$	311,944
Goodwill acquired during the period		3,874			—		150		4,024
Acquisitions measurement period adjustments		(91	)		296		—		205
Balance as of March 31, 2022	$	180,324		$	84,066	$	51,783	$	316,173

Schedule of Amounts Related to Finite-Lived Intangible Assets

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

March 31, 2022	Estimated Useful Life	Gross Balance		Accumulated Amortization		Total Intangible Assets—Net
Finite lived intangible assets
Customer relationships	2-15 years	$	202,212	$	79,690	$	122,522
Covenants not to compete	4-5 years		32,941		25,950		6,991
Trade names	1-5 years		21,422		15,826		5,596
Proprietary software	3-5 years		22,081		12,481		9,600
Patent	16 years		17,479		2,763		14,716
Total other intangible assets    —net		$	296,135	$	136,710	$	159,425

December 31, 2021	Estimated Useful Life	Gross Balance		Accumulated Amortization		Total Intangible Assets—Net
Finite lived intangible assets
Customer relationships	2-15 years	$	196,323	$	74,010	$	122,313
Covenants not to compete	4-5 years		32,622		25,113		7,509
Trade names	1-5 years		20,403		15,139		5,264
Proprietary software	3-5 years		22,077		11,155		10,922
Patent	16 years		17,479		2,490		14,989
Total other intangible assets    —net		$	288,904	$	127,907	$	160,997

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,
2022 (remaining)		24,727
2023		27,504
2024		22,978
2025		16,405
2026 and thereafter		67,811
Total	$	159,425