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Revenue Recognition - Schedule of Deferred Contract Costs (Details) - USD ($) $ in Millions	Sep. 30, 2025	Jun. 30, 2025	Dec. 31, 2024	Sep. 30, 2024	Jun. 30, 2024	Dec. 31, 2023
Capitalized Contract Cost [Line Items]
Deferred contract costs	$ 834.1	$ 841.0	$ 842.6	$ 828.1	$ 809.5	$ 710.7
Engineering Costs
Capitalized Contract Cost [Line Items]
Deferred contract costs	502.9		506.1
Customer-owned Tooling
Capitalized Contract Cost [Line Items]
Deferred contract costs	277.2		277.3
Factory Setup Costs
Capitalized Contract Cost [Line Items]
Deferred contract costs	52.9		52.5
Costs for Anticipated Contracts
Capitalized Contract Cost [Line Items]
Deferred contract costs	$ 1.1		$ 6.7

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 340
-SubTopic 40
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479483/340-40-50-3

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- Definition

Amount, after accumulated amortization and accumulated impairment loss, of asset recognized from cost incurred to obtain or fulfill contract with customer.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 340
-SubTopic 40
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479483/340-40-50-3

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