Contract Assets and Liabilities (Narrative) (Details) - USD ($) $ in Millions |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2026 |
Jun. 30, 2025 |
Jun. 30, 2026 |
Jun. 30, 2025 |
|
| Contract with Customer, Contract Asset, Contract Liability, and Receivable [Abstract] | ||||
| Costs and estimated earnings in excess of billings | $ 515.1 | $ 515.1 | ||
| Revenue recognized | $ 929.5 | $ 681.0 | $ 1,500.0 | $ 752.4 |