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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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