Segment Information - Reconciliation of Segment Measure to Loss Before Benefit from Income Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022		Dec. 31, 2021		Dec. 31, 2020
Segment Reporting [Abstract]
Total	$ 68,450		$ 77,642		$ 54,476
Interest expense, net	(5,239)		(11,615)		(13,819)
Income tax expense	(2,250)		(1,709)		(851)
Depreciation and amortization	(47,479)		(44,810)		(37,274)
Stock-based compensation	(43,290)		(10,321)		(4,849)
Start-up losses and investment in new services	(2,277)		(4,407)		(2,182)
Acquisition costs	(1,891)		(2,088)		(4,344)
Fair value changes in financial instruments	3,396		(2,195)		(20,319)
Fair value changes in business acquisitions contingent consideration	3,227		(24,372)		(12,942)
Short term purchase accounting fair value adjustment to deferred revenue					(243)
Public offering expense					(7,657)
Expenses related to financing transactions	(7)		(50)		(378)
Other losses or expenses	(4,459)	[1]	(1,400)	[2]	(7,567)	[3]
Net loss	$ (31,819)		$ (25,325)		$ (57,949)

[1] Amounts include costs associated with the exiting of the legacy water treatment and biogas operations and maintenance contracts and the Company's start-up lab in Berkley, California, as well as an impairment charge for certain operating lease right-of-use assets (Note 7) and severance costs related to the restructuring within our soil remediation business.

[2] Amounts include non-operational charges incurred due to the remeasurement of finance leases as a result of the adoption of ASC 842 and costs related to the implementation of a new ERP.

[3] During the first quarter of 2020, the Company determined to reduce the footprint of its environmental lab in Berkeley, California, and to exit its non-specialized municipal water engineering service line and its food waste biogas engineering service line. As a part of discontinuing these service lines, the Company made the decision to book an additional bad debt reserve related to the uncertainty around the ability to collect on receivables related to these service lines (Note 4). It was determined that the discontinuation of these service lines did not represent a strategic shift that had (or will have) a major effect on the Company’s operations and financial results therefore did not meet the requirements to be classified as discontinued operations.