Goodwill and Other Intangible Assets - Goodwill Roll forward (Details) - USD ($) $ in Thousands |
12 Months Ended | |
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Dec. 31, 2020 |
Dec. 31, 2019 |
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| Goodwill | ||
| Beginning balance | $ 390,503 | $ 389,651 |
| Foreign exchange impact | 1,062 | 852 |
| Ending balance | 391,565 | 390,503 |
| Ecoservices | ||
| Goodwill | ||
| Beginning balance | 311,892 | 311,892 |
| Foreign exchange impact | 0 | 0 |
| Ending balance | 311,892 | 311,892 |
| Catalyst Technologies | ||
| Goodwill | ||
| Beginning balance | 78,611 | 77,759 |
| Foreign exchange impact | 1,062 | 852 |
| Ending balance | $ 79,673 | $ 78,611 |
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- Definition Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of foreign currency translation gain (loss) which increases (decreases) an asset representing future economic benefits from other assets acquired in a business combination that are not individually identified and separately recognized. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. No definition available.
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