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GOODWILL AND INTANGIBLE ASSETS (Details) (USD $) | 12 Months Ended
--- | ---
Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012
Intangible assets [Abstract] |  |  |
Cost | $ 23,150,000 us-gaap_FiniteLivedIntangibleAssetsGross | $ 26,180,000 us-gaap_FiniteLivedIntangibleAssetsGross |
Accumulated Amortization | (14,390,000)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization | (15,634,000)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization |
Intangible assets expense [Abstract] |  |  |
Amortization expense of intangible assets | 1,200,000 us-gaap_AmortizationOfIntangibleAssets | 1,300,000 us-gaap_AmortizationOfIntangibleAssets | 1,400,000 us-gaap_AmortizationOfIntangibleAssets
2015 | 1,200,000 us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths |  |
2016 | 1,200,000 us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo |  |
2017 | 1,200,000 us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree |  |
2018 | 1,200,000 us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour |  |
2019 | 1,200,000 us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive |  |
Goodwill activity [Roll Forward] |  |  |
Balance as of beginning of period | 457,269,000 us-gaap_Goodwill | 451,318,000 us-gaap_Goodwill |
Currency translation impact | (32,997,000)us-gaap_GoodwillTranslationAdjustments | 5,951,000 us-gaap_GoodwillTranslationAdjustments |
Impairment | (158,000)us-gaap_GoodwillImpairmentLoss |  |
Balance as of end of period | 424,114,000 us-gaap_Goodwill | 457,269,000 us-gaap_Goodwill | 451,318,000 us-gaap_Goodwill
Flavor and Fragrances [Member] |  |  |
Goodwill activity [Roll Forward] |  |  |
Balance as of beginning of period | 136,637,000 us-gaap_Goodwill / us-gaap_StatementBusinessSegmentsAxis = sxt_FlavorAndFragnancesMember | 135,784,000 us-gaap_Goodwill / us-gaap_StatementBusinessSegmentsAxis = sxt_FlavorAndFragnancesMember |
Currency translation impact | (10,614,000)us-gaap_GoodwillTranslationAdjustments / us-gaap_StatementBusinessSegmentsAxis = sxt_FlavorAndFragnancesMember | 853,000 us-gaap_GoodwillTranslationAdjustments / us-gaap_StatementBusinessSegmentsAxis = sxt_FlavorAndFragnancesMember |
Impairment | 0 us-gaap_GoodwillImpairmentLoss / us-gaap_StatementBusinessSegmentsAxis = sxt_FlavorAndFragnancesMember |  |
Balance as of end of period | 126,023,000 us-gaap_Goodwill / us-gaap_StatementBusinessSegmentsAxis = sxt_FlavorAndFragnancesMember | 136,637,000 us-gaap_Goodwill / us-gaap_StatementBusinessSegmentsAxis = sxt_FlavorAndFragnancesMember |
Color [Member] |  |  |
Goodwill activity [Roll Forward] |  |  |
Balance as of beginning of period | 317,323,000 us-gaap_Goodwill / us-gaap_StatementBusinessSegmentsAxis = sxt_ColorMember | 311,650,000 us-gaap_Goodwill / us-gaap_StatementBusinessSegmentsAxis = sxt_ColorMember |
Currency translation impact | (22,050,000)us-gaap_GoodwillTranslationAdjustments / us-gaap_StatementBusinessSegmentsAxis = sxt_ColorMember | 5,673,000 us-gaap_GoodwillTranslationAdjustments / us-gaap_StatementBusinessSegmentsAxis = sxt_ColorMember |
Impairment | (158,000)us-gaap_GoodwillImpairmentLoss / us-gaap_StatementBusinessSegmentsAxis = sxt_ColorMember |  |
Balance as of end of period | 295,115,000 us-gaap_Goodwill / us-gaap_StatementBusinessSegmentsAxis = sxt_ColorMember | 317,323,000 us-gaap_Goodwill / us-gaap_StatementBusinessSegmentsAxis = sxt_ColorMember |
Corporate and Other [Member] |  |  |
Goodwill activity [Roll Forward] |  |  |
Balance as of beginning of period | 3,309,000 us-gaap_Goodwill / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateAndOtherMember | 3,884,000 us-gaap_Goodwill / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateAndOtherMember |
Currency translation impact | (333,000)us-gaap_GoodwillTranslationAdjustments / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateAndOtherMember | (575,000)us-gaap_GoodwillTranslationAdjustments / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateAndOtherMember |
Impairment | 0 us-gaap_GoodwillImpairmentLoss / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateAndOtherMember |  |
Balance as of end of period | 2,976,000 us-gaap_Goodwill / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateAndOtherMember | 3,309,000 us-gaap_Goodwill / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateAndOtherMember |
Weighted Average [Member] |  |  |
Intangible assets [Abstract] |  |  |
Weighted Average Amortization Years | 19 years 8 months 12 days |  |
Technological Know How [Member] |  |  |
Intangible assets [Abstract] |  |  |
Cost | 6,459,000 us-gaap_FiniteLivedIntangibleAssetsGross / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_TradeSecretsMember | 8,606,000 us-gaap_FiniteLivedIntangibleAssetsGross / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_TradeSecretsMember |
Accumulated Amortization | (4,352,000)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_TradeSecretsMember | (5,328,000)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_TradeSecretsMember |
Technological Know How [Member] | Weighted Average [Member] |  |  |
Intangible assets [Abstract] |  |  |
Weighted Average Amortization Years | 20 years |  |
Customer Relationships [Member] |  |  |
Intangible assets [Abstract] |  |  |
Cost | 6,938,000 us-gaap_FiniteLivedIntangibleAssetsGross / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_CustomerRelationshipsMember | 7,944,000 us-gaap_FiniteLivedIntangibleAssetsGross / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_CustomerRelationshipsMember |
Accumulated Amortization | (4,170,000)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_CustomerRelationshipsMember | (4,359,000)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_CustomerRelationshipsMember |
Customer Relationships [Member] | Weighted Average [Member] |  |  |
Intangible assets [Abstract] |  |  |
Weighted Average Amortization Years | 20 years |  |
Patents, Trademarks, Noncompete Agreements and Other [Member] |  |  |
Intangible assets [Abstract] |  |  |
Cost | 9,753,000 us-gaap_FiniteLivedIntangibleAssetsGross / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = sxt_PatentsTrademarksNoncompeteAgreementsAndOtherMember | 9,630,000 us-gaap_FiniteLivedIntangibleAssetsGross / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = sxt_PatentsTrademarksNoncompeteAgreementsAndOtherMember |
Accumulated Amortization | $ (5,868,000)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = sxt_PatentsTrademarksNoncompeteAgreementsAndOtherMember | $ (5,947,000)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = sxt_PatentsTrademarksNoncompeteAgreementsAndOtherMember |
Patents, Trademarks, Noncompete Agreements and Other [Member] | Weighted Average [Member] |  |  |
Intangible assets [Abstract] |  |  |
Weighted Average Amortization Years | 19 years 2 months 12 days |  |

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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 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585 Reference 2: 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 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=26713463&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=26713463&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 second 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=26713463&loc=d3e16323-109275 + Details
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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. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6388280&loc=d3e13770-109266 + Details
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