Goodwill and Intangible Assets (Tables)

3 Months Ended

Mar. 31, 2024

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, 2023	$	184,946	$	93,890	$	85,613		$	364,449
Goodwill acquired during the period		—		—		99,249			99,249
Prior year acquisitions measurement period adjustments		—		—		(320	)		(320	)
Foreign currency translation impact		—		—		72			72
Balance as of March 31, 2024	$	184,946	$	93,890	$	184,614		$	463,450

Schedule of Amounts Related to Finite-Lived Intangible Assets

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

March 31, 2024	Estimated Useful Life	Gross Balance		Accumulated Amortization		Net Balance
Finite lived intangible assets
Customer relationships	2-15 years	$	228,166	$	121,456	$	106,710
Covenants not to compete	4-5 years		36,250		31,411		4,839
Trade names	1-5 years		24,434		21,306		3,128
Proprietary software	3-5 years		27,339		20,119		7,220
Patent	16 years		17,479		4,952		12,527
Total		$	333,668	$	199,244	$	134,424

December 31, 2023	Estimated Useful Life	Gross Balance		Accumulated Amortization		Net Balance
Finite lived intangible assets
Customer relationships	2-15 years	$	227,986	$	116,226	$	111,760
Covenants not to compete	4-5 years		36,250		30,889		5,361
Trade names	1-5 years		24,434		20,719		3,714
Proprietary software	3-5 years		26,486		19,309		7,177
Patent	16 years		17,479		4,678		12,801
Total		$	332,635	$	191,821	$	140,813

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,
2024 (remaining)	$	27,027
2025		18,888
2026		16,183
2027		15,250
2028		11,914
Thereafter		45,162
Total	$	134,424