Date in which the credit facility termination date was extended, in YYYY-MM-DD format.

No definition available.

Name:	sxt_LineOfCreditFacilityExtendTerminationDate
Namespace Prefix:	sxt_
Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration

- References

No definition available.

+ Details

Name:	us-gaap_LineOfCreditFacilityAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Date the credit facility terminates, in YYYY-MM-DD format.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(22)(b))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(19)(b))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1

+ Details

Name:	us-gaap_LineOfCreditFacilityExpirationDate1
Namespace Prefix:	us-gaap_
Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of increase (decrease) of the credit facility.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 235
-SubTopic 10
-Name Accounting Standards Codification
-Section S50
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480738/235-10-S50-1

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 235
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08(f))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480678/235-10-S99-1

+ Details

Name:	us-gaap_LineOfCreditFacilityIncreaseDecreaseForPeriodNet
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

+ Details

Name:	us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Details

Name:	us-gaap_TypeOfArrangementAxis=sxt_FourthAmendedAndRestatedCreditAgreementMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RangeAxis=srt_MinimumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RangeAxis=srt_MaximumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_CreditFacilityAxis=us-gaap_RevolvingCreditFacilityMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_CreditFacilityAxis=sxt_SublimitsOnSwingLineLoansMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_CreditFacilityAxis=sxt_IncrementalRevolvingCommitmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_CreditFacilityAxis=us-gaap_LetterOfCreditMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_TypeOfArrangementAxis=sxt_LoanAgreementWithPNCBankMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_TypeOfArrangementAxis=sxt_ReceivablesPurchaseAgreementMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Debt (Details) - USD ($) $ in Millions	Jun. 30, 2025	Jun. 29, 2025	Jun. 13, 2025	Jun. 12, 2025
Fourth Amended and Restated Credit Agreement [Member] \| Minimum [Member]
Line of Credit Facility [Abstract]
Revolving credit facility extended maturity term			May 01, 2026
Fourth Amended and Restated Credit Agreement [Member] \| Maximum [Member]
Line of Credit Facility [Abstract]
Revolving credit facility extended maturity term			Jun. 01, 2030
Fourth Amended and Restated Credit Agreement [Member] \| Revolving Credit Facility [Member]
Line of Credit Facility [Abstract]
Maximum borrowing capacity			$ 400
Increase in line of credit facility			400	$ 350
Fourth Amended and Restated Credit Agreement [Member] \| Sublimit on Swing Line Loans [Member] \| Maximum [Member]
Line of Credit Facility [Abstract]
Maximum borrowing capacity			50
Fourth Amended and Restated Credit Agreement [Member] \| Incremental Revolving Commitment [Member]
Line of Credit Facility [Abstract]
Increase in line of credit facility			150	$ 100
Fourth Amended and Restated Credit Agreement [Member] \| Letter of Credit [Member] \| Maximum [Member]
Line of Credit Facility [Abstract]
Maximum borrowing capacity			$ 20
Loan Agreement with PNC Bank [Member] \| Minimum [Member]
Line of Credit Facility [Abstract]
Termination date extended			Nov. 01, 2025
Loan Agreement with PNC Bank [Member] \| Maximum [Member]
Line of Credit Facility [Abstract]
Termination date extended			Jun. 01, 2027
Receivables Purchase Agreement [Member]
Line of Credit Facility [Abstract]
Increase in line of credit facility	$ 105	$ 85
Receivables Purchase Agreement [Member] \| Minimum [Member]
Line of Credit Facility [Abstract]
Termination date extended	Aug. 29, 2025
Receivables Purchase Agreement [Member] \| Maximum [Member]
Line of Credit Facility [Abstract]
Termination date extended	Aug. 31, 2026