Restructuring - Schedule of Restructuring Related Liabilities (Details) - USD ($) $ in Millions |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Dec. 31, 2024 |
Dec. 31, 2023 |
Dec. 31, 2024 |
Dec. 31, 2023 |
|
| Restructuring Reserve [Roll Forward] | ||||
| Beginning Balance | $ 4.8 | $ 6.5 | $ 17.0 | $ 13.9 |
| Cash restructuring charges | 3.3 | 9.6 | 6.2 | 20.2 |
| Cash payments | (4.5) | (9.1) | (19.6) | (27.2) |
| Ending Balance | 3.6 | 7.0 | 3.6 | 7.0 |
| Severance and other personnel costs | ||||
| Restructuring Reserve [Roll Forward] | ||||
| Beginning Balance | 1.8 | 5.9 | 12.7 | 13.6 |
| Cash restructuring charges | 0.6 | 0.3 | 0.1 | 6.4 |
| Cash payments | (1.4) | (3.9) | (11.8) | (17.8) |
| Ending Balance | 1.0 | 2.2 | 1.0 | 2.2 |
| Exit and disposal costs and professional fees | ||||
| Restructuring Reserve [Roll Forward] | ||||
| Beginning Balance | 3.1 | 0.6 | 4.3 | 0.3 |
| Cash restructuring charges | 2.7 | 9.3 | 6.1 | 13.8 |
| Cash payments | (3.2) | (5.2) | (7.8) | (9.4) |
| Ending Balance | $ 2.6 | $ 4.7 | $ 2.6 | $ 4.7 |