v3.26.3
Segment Information - Schedule of Revenue from External Customers by Geographic Areas (Details) - USD ($)
$ in Millions
 3 Months Ended 9 Months Ended
Sep. 30, 2026
Sep. 30, 2025
Sep. 30, 2026
Sep. 30, 2025
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Geographical Area, Revenue and Long-Lived Asset [Line Items]        
Total revenues $ 277.8 $ 223.1 $ 802.2 $ 648.0
Nuclear & Safety        
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Geographical Area, Revenue and Long-Lived Asset [Line Items]        
Total revenues 194.0 144.6 565.7 419.7
Medical        
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Geographical Area, Revenue and Long-Lived Asset [Line Items]        
Total revenues 83.8 78.5 236.5 228.3
North America        
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Geographical Area, Revenue and Long-Lived Asset [Line Items]        
Total revenues 198.9 144.2 553.0 413.9
North America | Nuclear & Safety        
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Geographical Area, Revenue and Long-Lived Asset [Line Items]        
Total revenues 123.7 74.4 339.9 209.3
North America | Medical        
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Geographical Area, Revenue and Long-Lived Asset [Line Items]        
Total revenues 75.2 69.8 213.1 204.6
Europe        
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Geographical Area, Revenue and Long-Lived Asset [Line Items]        
Total revenues 76.6 75.7 239.6 222.9
Europe | Nuclear & Safety        
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Geographical Area, Revenue and Long-Lived Asset [Line Items]        
Total revenues 68.0 67.0 216.2 199.2
Europe | Medical        
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Geographical Area, Revenue and Long-Lived Asset [Line Items]        
Total revenues 8.6 8.7 23.4 23.7
Asia Pacific        
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Geographical Area, Revenue and Long-Lived Asset [Line Items]        
Total revenues 2.3 3.2 9.6 11.2
Asia Pacific | Nuclear & Safety        
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Geographical Area, Revenue and Long-Lived Asset [Line Items]        
Total revenues 2.3 3.2 9.6 11.2
Asia Pacific | Medical        
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Geographical Area, Revenue and Long-Lived Asset [Line Items]        
Total revenues $ 0.0 $ 0.0 $ 0.0 $ 0.0