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Restructuring and Other Charges - Additional Information (Details) $ in Thousands | 12 Months Ended
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Dec. 31, 2019 USD ($) Facility Position | Dec. 31, 2018 USD ($) | Dec. 31, 2017 USD ($)
Restructuring Cost and Reserve [Line Items] |  |  |
Additional charges, net | $ 29,765 | $ 5,079 | $ 19,711
Frutarom Integration Initiative [Member] |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Expected number of sites closed | Facility | 35 |  |
Expected Number Of Sites Closed, Period | 2 years |  |
Number Of Sites Closed | Facility | 10 |  |
2017 Productivity Program [Member] |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Additional charges, net |  |  | 24,500
Severance | Frutarom Integration Initiative [Member] |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Additional charges, net | $ 10,400 |  |
Other Restructuring Costs | 65,000 |  |
Severance | 2019 Severance Initiatives [Member] |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Additional charges, net | 21,300 |  |
Other Restructuring Costs | 25,000 |  |
Severance | 2017 Productivity Program [Member] |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Other Restructuring Costs |  |  | 25,000
Scent [Member] |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Additional charges, net | $ 11,768 | 3,433 | 13,077
Scent [Member] | Severance | 2019 Severance Initiatives [Member] |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Expected Number of Positions Eliminated | Position | 330 |  |
Shared IT & Corporate Costs [Member] |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Additional charges, net | $ 7,627 | $ 0 | $ 2,129
Asia [Member] | Frutarom Integration Initiative [Member] |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Number Of Sites Closed | Facility | 1 |  |
EMEA [Member] | Frutarom Integration Initiative [Member] |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Number Of Sites Closed | Facility | 6 |  |
Latin America [Member] | Frutarom Integration Initiative [Member] |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Number Of Sites Closed | Facility | 2 |  |
North America [Member] | Frutarom Integration Initiative [Member] |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Number Of Sites Closed | Facility | 1 |  |

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