Business Acquisitions - Summary of Elements of Original and Final Purchase Price of Acquisitions (Details) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Business Acquisition [Line Items]
Cash		$ 68,640	$ 29,744	$ 59,486
Common Stock		2,598		8,320
Other Purchase Price Components		2,469	1,678	11,866
Contingent Consideration		1,096	2,666	7,404
Total Purchase Price		74,803	34,088	87,076
Matrix
Business Acquisition [Line Items]
Cash		46,563
Other Purchase Price Components	[1]	2,019
Total Purchase Price		48,582
All Other 2023 Acquisitions
Business Acquisition [Line Items]
Cash		22,077
Common Stock		2,598
Other Purchase Price Components		450
Contingent Consideration		1,096
Total Purchase Price		$ 26,221
Environmental Standards
Business Acquisition [Line Items]
Cash			14,473
Other Purchase Price Components			544
Contingent Consideration			1,166
Total Purchase Price			16,183
All Other 2022 Acquisitions
Business Acquisition [Line Items]
Cash			15,271
Other Purchase Price Components			1,134
Contingent Consideration			1,500
Total Purchase Price			$ 17,905
MSE Group
Business Acquisition [Line Items]
Cash				9,082
Common Stock				2,271
Other Purchase Price Components				10,701
Contingent Consideration				1,804
Total Purchase Price				23,858
EI
Business Acquisition [Line Items]
Cash				20,721
Common Stock				2,274
Other Purchase Price Components				(63)
Total Purchase Price				22,932
All Other 2021 Acquisitions
Business Acquisition [Line Items]
Cash				29,683
Common Stock				3,775
Other Purchase Price Components				1,228
Contingent Consideration				5,600
Total Purchase Price				$ 40,286

[1] (1) Includes $1.3 million in holdback amounts payable to the seller. Cash funds to be used for payment have been classified as restricted cash in the Company's consolidated statement of financial position.