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v3.21.2

Commitments and Contingencies (Details) | 12 Months Ended
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Dec. 31, 2020
Commitments and Contingencies [Abstract] |
Employee working period in SNI | 5 months

X
- Definition Refers to the employees employment period in organization in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. + References No definition available. + Details
Name: | sxt_EmployeesEmploymentPeriod
Namespace Prefix: | sxt_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

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- References No definition available. + Details
Name: | us-gaap_CommitmentsAndContingenciesDisclosureAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration