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Goodwill and Intangible Assets (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015
Intangible assets [Abstract] |  |  |  |
Cost |  | $ 24,643 | $ 24,440 |
Accumulated Amortization |  | (17,432) | (16,314) |
Intangible assets expense [Abstract] |  |  |  |
Amortization expense of intangible assets |  | 1,600 | 1,300 | $ 1,200
Estimated Amortization Expense [Abstract] |  |  |  |
2018 |  | 1,300 |  |
2019 |  | 1,300 |  |
2020 |  | 1,300 |  |
2021 |  | 1,300 |  |
2022 |  | 1,300 |  |
Goodwill activity [Roll Forward] |  |  |  |
Balance as of beginning of period |  | 383,568 | 399,646 |
Currency translation impact |  | 25,427 | (15,257) |
Goodwill Held for Sale | [1] |  | (821) |
Balance as of end of period |  | $ 408,995 | 383,568 | 399,646
Weighted Average [Member] |  |  |  |
Intangible assets [Abstract] |  |  |  |
Weighted Average Amortization Years |  | 19 years 8 months 12 days |  |
Flavor and Fragrances [Member] |  |  |  |
Goodwill activity [Roll Forward] |  |  |  |
Balance as of beginning of period |  | $ 109,369 | 114,348 |
Currency translation impact |  | 5,624 | (4,158) |
Goodwill Held for Sale | [1] |  | (821) |
Balance as of end of period |  | 114,993 | 109,369 | 114,348
Color [Member] |  |  |  |
Goodwill activity [Roll Forward] |  |  |  |
Balance as of beginning of period |  | 272,006 | 282,348 |
Currency translation impact |  | 18,883 | (10,342) |
Goodwill Held for Sale | [1] |  | 0 |
Balance as of end of period |  | 290,889 | 272,006 | 282,348
Asia Pacific [Member] |  |  |  |
Goodwill activity [Roll Forward] |  |  |  |
Balance as of beginning of period |  | 2,193 | 2,950 |
Currency translation impact |  | 920 | (757) |
Goodwill Held for Sale | [1] |  | 0 |
Balance as of end of period |  | 3,113 | 2,193 | $ 2,950
Technological Know-how [Member] |  |  |  |
Intangible assets [Abstract] |  |  |  |
Cost |  | 7,510 | 7,315 |
Accumulated Amortization |  | $ (6,505) | (5,195) |
Technological Know-how [Member] | Weighted Average [Member] |  |  |  |
Intangible assets [Abstract] |  |  |  |
Weighted Average Amortization Years |  | 20 years |  |
Customer Relationships [Member] |  |  |  |
Intangible assets [Abstract] |  |  |  |
Cost |  | $ 6,869 | 6,561 |
Accumulated Amortization |  | $ (5,244) | (4,610) |
Customer Relationships [Member] | Weighted Average [Member] |  |  |  |
Intangible assets [Abstract] |  |  |  |
Weighted Average Amortization Years |  | 20 years |  |
Patents, Trademarks, Non-compete Agreements and Other [Member] |  |  |  |
Intangible assets [Abstract] |  |  |  |
Cost |  | $ 10,264 | 10,564 |
Accumulated Amortization |  | $ (5,683) | $ (6,509) |
Patents, Trademarks, Non-compete Agreements and Other [Member] | Weighted Average [Member] |  |  |  |
Intangible assets [Abstract] |  |  |  |
Weighted Average Amortization Years |  | 19 years 2 months 12 days |  |
[1] | A portion of the Flavors & Fragrances' segment goodwill was moved in 2016 to Assets Held for Sale on the Consolidated Balance Sheet as a result of the divestiture. See Note 14, Divestiture, for additional information.

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- Definition The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6388964&loc=d3e16225-109274 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3602-108585 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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- Definition Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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- Definition Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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- Definition Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the fourth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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