Segment Information and Geographic Location Information - Reconciliation of Segment Measure to Loss Before Benefit from Income Taxes (Details) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2023		Dec. 31, 2022		Dec. 31, 2021
Segment Reporting [Abstract]
Total		$ 78,576		$ 68,450	[1]	$ 77,642	[1]
Interest expense, net		(7,793)		(5,239)		(11,615)
Income tax benefit (expense)		980		(2,250)		(1,709)
Depreciation and amortization		(45,780)		(47,479)		(44,810)
Stock-based compensation		(47,267)		(43,290)		(10,321)
Start-up losses and investment in new services				(2,277)		(4,407)
Acquisition costs		(6,930)		(1,891)		(2,088)
Fair value changes in financial instruments		4,129		3,396		(2,195)
Fair value changes in business acquisition contingencies		(84)		3,227		(24,372)
Discontinued Specialty Lab	[2]	(6,112)
Expenses related to financing transactions		(35)		(7)		(50)
Other losses or expenses, net		(543)	[3]	(4,459)	[4]	(1,400)	[5]
Net loss		$ (30,859)		$ (31,819)		$ (25,325)

[1] Includes the add back of start-up losses and investment in new services of $2.3 million and $4.4 million for the year ended December 31, 2022 and 2021, respectively.

[2] Amounts consist of operating losses before depreciation related to the Discontinued Specialty Lab, which include $2.2 million in current expected credit losses on the promissory note receivable issued upon the sale and a $1.8 million gain on the sale of its assets.

[3] Amounts are primarily comprised of lease abandonment charges and expenses related to an aircraft accident, partially offset by a gain on the surrender of a lease and an aircraft insurance gain.

[4] 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 the Company’s soil remediation business.

[5] 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.