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Supply Chain Financing (Details) - USD ($) $ in Millions	9 Months Ended	12 Months Ended
	Sep. 30, 2025	Dec. 31, 2024
Commitments and Contingencies Disclosure [Abstract]
Termination written notice period	90 days
Payment term	90 days
Purchase Obligation [Roll Forward]
Confirmed obligations outstanding, January 1	$ 16.7	$ 21.3
Invoices confirmed	70.2	105.0
Confirmed invoices paid	(66.8)	(109.6)
Confirmed obligations outstanding, ending balance	$ 20.1	$ 16.7

X

- Definition

Purchase Obligation, Payment Term

+ References

No definition available.

+ Details

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X

- Definition

Purchase Obligation, Payments

+ References

No definition available.

+ Details

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Period Type:	duration

X

- Definition

Purchase Obligation, Purchases

+ References

No definition available.

+ Details

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Namespace Prefix:	tkr_
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Balance Type:	debit
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X

- Definition

Purchase Obligation

+ References

No definition available.

+ Details

Name:	tkr_PurchaseObligationRollForward
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X

- Definition

Purchase Obligation, Termination Written Notice Period

+ References

No definition available.

+ Details

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Namespace Prefix:	tkr_
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- References

No definition available.

+ Details

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X

- Definition

Minimum amount of purchase arrangement in which the entity has agreed to expend funds to procure goods or services from a supplier.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 942
-SubTopic 235
-Name Accounting Standards Codification
-Section S99
-Paragraph 2
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147477314/942-235-S99-2

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 235
-SubTopic 10
-Name Accounting Standards Codification
-Section S50
-Paragraph 4
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480738/235-10-S50-4

Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 235
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 3
-Subparagraph (SX 210.12-04(a))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480678/235-10-S99-3

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