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Segment Information (Tables) | 3 Months Ended
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Mar. 31, 2021
Segment Reporting [Abstract] |
Components of Segment Revenues and Adjusted EBITDA | Segment revenues and Adjusted EBITDA consisted of the following:
|  | Three Months Ended March 31, |  |
|  | 2021 |  |  | 2020 |  |
|  |  |  |  |  | Segment |  |  |  |  |  |  | Segment |  |
|  | Segment |  |  | Adjusted |  |  | Segment |  |  | Adjusted |  |
|  | Revenues |  |  | EBITDA |  |  | Revenues |  |  | EBITDA |  |
Assessment, Permitting and Response |  | $ | 75,262 |  |  | $ | 15,804 |  |  | $ | 4,530 |  |  | $ | 1,442 |  |
Measurement and Analysis |  |  | 33,440 |  |  |  | 4,860 |  |  |  | 36,440 |  |  |  | 7,379 |  |
Remediation and Reuse |  |  | 25,115 |  |  |  | 2,481 |  |  |  | 20,061 |  |  |  | 2,107 |  |
Total Operating Segments |  |  | 133,817 |  |  |  | 23,145 |  |  |  | 61,031 |  |  |  | 10,928 |  |
Corporate and Other |  |  | — |  |  |  | (6,345 | ) |  |  | — |  |  |  | (5,375 | ) |
Total |  | $ | 133,817 |  |  | $ | 16,800 |  |  | $ | 61,031 |  |  | $ | 5,553 |  |
Reconciliation of Segment Measure to Loss Before (Expense) Benefit from Income Taxes | Presented below is a reconciliation of the Company’s segment measure to loss before (expense) benefit from income taxes:
|  | For the Three Months Ended March 31, |  |
|  | 2021 |  |  | 2020 |  |
Total |  | $ | 16,800 |  |  | $ | 5,553 |  |
Interest expense, net |  |  | (2,688 | ) |  |  | (2,593 | ) |
Income tax (expense) benefit |  |  | (2 | ) |  |  | 3,152 |  |
Depreciation and amortization |  |  | (10,769 | ) |  |  | (7,560 | ) |
Stock-based compensation |  |  | (1,805 | ) |  |  | (1,150 | ) |
Start-up losses and investment in new services |  |  | (968 | ) |  |  | (379 | ) |
Acquisition costs |  |  | (237 | ) |  |  | (1,307 | ) |
Fair value changes in financial instruments |  |  | (602 | ) |  |  | (29,626 | ) |
Fair value changes in business acquisitions contingent consideration |  |  | (11,064 | ) |  |  | — |  |
Short term purchase accounting fair value adjustment to deferred revenue |  |  | — |  |  |  | (243 | ) |
Initial public offering expense |  |  | — |  |  |  | (531 | ) |
Discontinued services (i) |  |  | — |  |  |  | (6,417 | ) |
Expenses related to financing transactions |  |  | (50 | ) |  |  | — |  |
Other losses or expenses |  |  | (211 | ) |  |  | (147 | ) |
Net loss |  | $ | (11,596 | ) |  | $ | (41,248 | ) |
(i)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 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 3). 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.

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- Definition Tabular disclosure of the reconciliation of profit (loss) from reportable segments to the consolidated income (loss) before income tax expense (benefit) and discontinued operations. Includes, but is not limited to, reconciliation after income tax if income tax is allocated to the reportable segment. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 31 -URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8924-108599 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 30 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8906-108599 + Details
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- Definition Tabular disclosure of the profit or loss and total assets for each reportable segment. An entity discloses certain information on each reportable segment if the amounts (a) are included in the measure of segment profit or loss reviewed by the chief operating decision maker or (b) are otherwise regularly provided to the chief operating decision maker, even if not included in that measure of segment profit or loss. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8736-108599 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 25 -URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8813-108599 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=121556970&loc=d3e13816-109267 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 30 -URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8906-108599 + Details
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