Number of draws made on term loan.

No definition available.

Name:	sxt_NumberOfDrawsMadeOnTermLoan
Namespace Prefix:	sxt_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Definition

Number of advances permitted to be drawn under the term loan credit facility.

+ References

No definition available.

+ Details

Name:	sxt_NumberOfTermLoanAdvances
Namespace Prefix:	sxt_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

Period of term loan following the closing date during which advances may be drawn under the term loan credit facility., in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

Name:	sxt_TermLoanDrawPeriod
Namespace Prefix:	sxt_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Face (par) amount of debt instrument at time of issuance.

+ References

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+ Details

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

- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

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Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Date when the debt instrument is scheduled to be fully repaid, in YYYY-MM-DD format.

+ References

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+ Details

Name:	us-gaap_DebtInstrumentMaturityDate
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Balance Type:	na
Period Type:	duration

- Definition

Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

Name:	us-gaap_DebtInstrumentTerm
Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
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.

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

- Details

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Balance Type:
Period Type:

- Details

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- Details

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Namespace Prefix:
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Period Type:

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Name:	srt_CurrencyAxis=currency_EUR
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Debt (Details) € in Millions, $ in Millions	Jun. 18, 2026 USD ($) Advance	Mar. 27, 2026 EUR (€)	Jun. 30, 2026 Draw
4.00% Senior Notes due March 2030 [Member]
Line of Credit Facility [Abstract]
Maturity date		Mar. 01, 2030
Interest rate on secured loan		4.00%
Term Loan [Member]
Line of Credit Facility [Abstract]
Term loan draw period	15 months
Term of loan	5 years
Number of draws made on term loan \| Draw			0
Term Loan [Member] \| Maximum [Member]
Line of Credit Facility [Abstract]
Aggregate principal amount \| $	$ 400
Number of term loan advances \| Advance	5
Master Note Agreement [Member] \| Euro [Member] \| 4.00% Senior Notes due March 2030 [Member]
Line of Credit Facility [Abstract]
Senior notes \| €		€ 65