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Intangibles (Net of Amortization) and Goodwill (Tables) | 12 Months Ended
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Dec. 31, 2020
Goodwill and Intangible Assets Disclosure [Abstract] |
Schedule Of Intangible Assets and Goodwill | The gross carrying amount and accumulated amortization of each type of intangible asset and goodwill are presented in the table below.
|  | December 31,
|  | 2020 |  | 2019
(in thousands) |  | Gross Carrying Amount |  | Accumulated Amortization |  | Gross Carrying Amount |  | Accumulated Amortization
Amortizing intangible assets |  |  |  |  |  |  |  |
Formulas and technology |  | $ | 6,200 |  |  | $ | 3,617 |  |  | $ | 9,600 |  |  | $ | 5,416 |
Contract |  | 2,000 |  |  | 800 |  |  | 2,000 |  |  | 600 |
Customer bases |  | 14,240 |  |  | 12,037 |  |  | 14,240 |  |  | 10,931 |
Goodwill |  | 123,958 |  |  |  |  | 122,987 |  |  |
|  | $ | 146,398 |  |  | $ | 16,454 |  |  | $ | 148,827 |  |  | $ | 16,947 |
Aggregate amortization expense |  |  |  | $ | 2,907 |  |  |  |  | $ | 4,206 |
Schedule Of Estimated Annual Amortization Expense Related To Intangible Assets | Estimated annual amortization expense related to our intangible assets for the next five years is expected to be (in thousands):
2021 | $ | 2,156 |
2022 | 1,423 |
2023 | 907 |
2024 | 390 |
2025 | 390 |

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