Restructuring and Impairment - Schedule of Restructuring Expenses (Details) - USD ($) $ in Millions |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Sep. 30, 2026 |
Sep. 30, 2025 |
Sep. 30, 2026 |
Sep. 30, 2025 |
|
| Restructuring Cost and Reserve [Line Items] | ||||
| Total | $ 0.8 | $ 1.0 | $ 1.4 | $ 1.4 |
| Operating Segments | Nuclear & Safety | ||||
| Restructuring Cost and Reserve [Line Items] | ||||
| Total | 0.8 | 0.4 | 0.9 | 0.5 |
| Operating Segments | Medical | ||||
| Restructuring Cost and Reserve [Line Items] | ||||
| Total | 0.0 | 0.6 | 0.3 | 0.9 |
| Corporate and other | ||||
| Restructuring Cost and Reserve [Line Items] | ||||
| Total | $ 0.0 | $ 0.0 | $ 0.2 | $ 0.0 |