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Operational Improvement Plan (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2021 | Sep. 30, 2020 | Sep. 30, 2021 | Sep. 30, 2020 | Dec. 31, 2020
Restructuring Costs [Abstract] |  |  |  |  |  |  |  |  |
Operational Improvement Plan costs |  |  | $ 2,641 |  |  |  | $ 2,641 |  |
Accrued liabilities |  | $ 1,000 |  |  | $ 1,000 |  |  |  | $ 2,200
Selling & Administrative Expenses [Member] |  |  |  |  |  |  |  |  |
Restructuring Costs [Abstract] |  |  |  |  |  |  |  |  |
Operational Improvement Plan costs |  | 483 |  |  | (2,010) |  |  |  |
Employee Separation Costs [Member] | Selling & Administrative Expenses [Member] |  |  |  |  |  |  |  |  |
Restructuring Costs [Abstract] |  |  |  |  |  |  |  |  |
Operational Improvement Plan costs |  | (123) | 2,424 |  | (127) |  | 2,424 |  |
Other Income [Member] | Selling & Administrative Expenses [Member] |  |  |  |  |  |  |  |  |
Restructuring Costs [Abstract] |  |  |  |  |  |  |  |  |
Operational Improvement Plan costs | [1] |  |  |  | (3,624) |  |  |  |
Other Costs [Member] | Selling & Administrative Expenses [Member] |  |  |  |  |  |  |  |  |
Restructuring Costs [Abstract] |  |  |  |  |  |  |  |  |
Operational Improvement Plan costs |  | 606 | 182 | [2] | 1,741 | [2] | 182 | [2] |
Other Costs [Member] | Cost of Products Sold [Member] |  |  |  |  |  |  |  |  |
Restructuring Costs [Abstract] |  |  |  |  |  |  |  |  |
Operational Improvement Plan costs |  |  | 35 |  |  |  | 35 |  |
Flavors & Extracts [Member] | Selling & Administrative Expenses [Member] |  |  |  |  |  |  |  |  |
Restructuring Costs [Abstract] |  |  |  |  |  |  |  |  |
Operational Improvement Plan costs |  | 1 | 337 |  | (15) |  | 337 |  |
Flavors & Extracts [Member] | Employee Separation Costs [Member] | Selling & Administrative Expenses [Member] |  |  |  |  |  |  |  |  |
Restructuring Costs [Abstract] |  |  |  |  |  |  |  |  |
Operational Improvement Plan costs |  | 1 | 337 |  | (15) |  | 337 |  |
Flavors & Extracts [Member] | Other Income [Member] | Selling & Administrative Expenses [Member] |  |  |  |  |  |  |  |  |
Restructuring Costs [Abstract] |  |  |  |  |  |  |  |  |
Operational Improvement Plan costs | [1] |  |  |  | 0 |  |  |  |
Flavors & Extracts [Member] | Other Costs [Member] | Selling & Administrative Expenses [Member] |  |  |  |  |  |  |  |  |
Restructuring Costs [Abstract] |  |  |  |  |  |  |  |  |
Operational Improvement Plan costs |  | 0 | 0 | [2] | 0 | [2] | 0 | [2] |
Flavors & Extracts [Member] | Other Costs [Member] | Cost of Products Sold [Member] |  |  |  |  |  |  |  |  |
Restructuring Costs [Abstract] |  |  |  |  |  |  |  |  |
Operational Improvement Plan costs |  |  | 0 |  |  |  | 0 |  |
Color [Member] |  |  |  |  |  |  |  |  |
Restructuring Costs [Abstract] |  |  |  |  |  |  |  |  |
Operational Improvement Plan costs |  |  | 1,694 |  |  |  | 1,694 |  |
Color [Member] | Selling & Administrative Expenses [Member] |  |  |  |  |  |  |  |  |
Restructuring Costs [Abstract] |  |  |  |  |  |  |  |  |
Operational Improvement Plan costs |  | 485 |  |  | (1,925) |  |  |  |
Color [Member] | Employee Separation Costs [Member] | Selling & Administrative Expenses [Member] |  |  |  |  |  |  |  |  |
Restructuring Costs [Abstract] |  |  |  |  |  |  |  |  |
Operational Improvement Plan costs |  | (120) | 1,477 |  | (40) |  | 1,477 |  |
Color [Member] | Other Income [Member] | Selling & Administrative Expenses [Member] |  |  |  |  |  |  |  |  |
Restructuring Costs [Abstract] |  |  |  |  |  |  |  |  |
Operational Improvement Plan costs | [1] |  |  |  | (3,624) |  |  |  |
Color [Member] | Other Costs [Member] | Selling & Administrative Expenses [Member] |  |  |  |  |  |  |  |  |
Restructuring Costs [Abstract] |  |  |  |  |  |  |  |  |
Operational Improvement Plan costs |  | 605 | 182 | [2] | 1,739 | [2] | 182 | [2] |
Color [Member] | Other Costs [Member] | Cost of Products Sold [Member] |  |  |  |  |  |  |  |  |
Restructuring Costs [Abstract] |  |  |  |  |  |  |  |  |
Operational Improvement Plan costs |  |  | 35 |  |  |  | 35 |  |
Asia Pacific [Member] | Selling & Administrative Expenses [Member] |  |  |  |  |  |  |  |  |
Restructuring Costs [Abstract] |  |  |  |  |  |  |  |  |
Operational Improvement Plan costs |  | (3) | 610 |  | (70) |  | 610 |  |
Asia Pacific [Member] | Employee Separation Costs [Member] | Selling & Administrative Expenses [Member] |  |  |  |  |  |  |  |  |
Restructuring Costs [Abstract] |  |  |  |  |  |  |  |  |
Operational Improvement Plan costs |  | (4) | 610 |  | (72) |  | 610 |  |
Asia Pacific [Member] | Other Income [Member] | Selling & Administrative Expenses [Member] |  |  |  |  |  |  |  |  |
Restructuring Costs [Abstract] |  |  |  |  |  |  |  |  |
Operational Improvement Plan costs | [1] |  |  |  | 0 |  |  |  |
Asia Pacific [Member] | Other Costs [Member] | Selling & Administrative Expenses [Member] |  |  |  |  |  |  |  |  |
Restructuring Costs [Abstract] |  |  |  |  |  |  |  |  |
Operational Improvement Plan costs |  | $ 1 | 0 | [2] | $ 2 | [2] | 0 | [2] |
Asia Pacific [Member] | Other Costs [Member] | Cost of Products Sold [Member] |  |  |  |  |  |  |  |  |
Restructuring Costs [Abstract] |  |  |  |  |  |  |  |  |
Operational Improvement Plan costs |  |  | $ 0 |  |  |  | $ 0 |  |
[1] | Other income includes cash received for the early termination of a lease less associated expenses.
[2] | Other costs include professional services, accelerated depreciation, and other related costs.

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