Jack-Up Rigs - Schedule of Jack-Up Rigs (Details) - USD ($) $ in Millions |
6 Months Ended | 12 Months Ended |
|---|---|---|
Jun. 30, 2025 |
Dec. 31, 2024 |
|
| Jack Up Rigs [Roll Forward] | ||
| Opening balance | $ 2,823.2 | $ 2,578.3 |
| Additions | 41.2 | 64.6 |
| Depreciation and amortization | (72.0) | (130.1) |
| Transfers from Newbuildings | 0.0 | 310.4 |
| Total | $ 2,792.4 | $ 2,823.2 |