Segment Information - Schedule of Revenue from External Customers by Geographic Areas (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenues	$ 925.4	$ 860.8	$ 800.9
Medical
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenues	310.8	299.7	284.5
Nuclear & Safety
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenues	614.6	561.1	516.4
North America
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenues	582.2	542.2	512.3
North America | Medical
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenues	279.3	271.9	258.1
North America | Nuclear & Safety
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenues	302.9	270.3	254.2
Europe
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenues	327.6	305.6	272.1
Europe | Medical
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenues	31.5	27.8	26.4
Europe | Nuclear & Safety
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenues	296.1	277.8	245.7
Asia Pacific
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenues	15.6	13.0	16.5
Asia Pacific | Medical
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenues	0.0	0.0	0.0
Asia Pacific | Nuclear & Safety
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenues	$ 15.6	$ 13.0	$ 16.5