Revenue Recognition - Schedule of Deferred Contract Costs (Details) - USD ($) $ in Millions |
Sep. 30, 2026 |
Jun. 30, 2026 |
Dec. 31, 2025 |
Sep. 30, 2025 |
Jun. 30, 2025 |
Dec. 31, 2024 |
|---|---|---|---|---|---|---|
| Capitalized Contract Cost [Line Items] | ||||||
| Deferred contract costs | $ 783.2 | $ 796.9 | $ 825.5 | $ 834.1 | $ 841.0 | $ 842.6 |
| Engineering Costs | ||||||
| Capitalized Contract Cost [Line Items] | ||||||
| Deferred contract costs | 472.5 | 497.8 | ||||
| Customer-owned Tooling | ||||||
| Capitalized Contract Cost [Line Items] | ||||||
| Deferred contract costs | 261.8 | 274.3 | ||||
| Factory Setup Costs | ||||||
| Capitalized Contract Cost [Line Items] | ||||||
| Deferred contract costs | 48.9 | 52.2 | ||||
| Costs for Anticipated Contracts | ||||||
| Capitalized Contract Cost [Line Items] | ||||||
| Deferred contract costs | $ 0.0 | $ 1.2 |