Goodwill and Other Intangible Assets - Goodwill Rollforward (Details) - USD ($) $ in Thousands |
12 Months Ended | |
|---|---|---|
Dec. 31, 2018 |
Dec. 31, 2017 |
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| Goodwill | ||
| Beginning balance | $ 1,305,956 | $ 1,241,429 |
| Goodwill recognized | 649 | 37,584 |
| Goodwill adjustments | (34,811) | |
| Foreign exchange impact | (16,865) | 26,943 |
| Ending balance | 1,254,929 | 1,305,956 |
| Environmental Catalysts & Services | ||
| Goodwill | ||
| Beginning balance | 391,333 | 388,923 |
| Goodwill recognized | 0 | 0 |
| Goodwill adjustments | 0 | |
| Foreign exchange impact | (1,682) | 2,410 |
| Ending balance | 389,651 | 391,333 |
| Performance Materials & Chemicals | ||
| Goodwill | ||
| Beginning balance | 914,623 | 852,506 |
| Goodwill recognized | 649 | 37,584 |
| Goodwill adjustments | (34,811) | |
| Foreign exchange impact | (15,183) | 24,533 |
| Ending balance | $ 865,278 | $ 914,623 |
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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://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of increase in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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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 Amount of increase (decrease) from adjustments after acquisition date under purchase accounting of an asset representing the future economic benefits arising 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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