Segment Information - Schedule of Capital Expenditures and Depreciation and Amortization (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Segment Reporting Information [Line Items]
Capital expenditures	$ 48.8	$ 40.8	$ 34.6
Depreciation and amortization	150.4	162.8	174.5
Operating Segments
Segment Reporting Information [Line Items]
Capital expenditures	45.5	39.8	34.2
Depreciation and amortization	149.7	162.1	173.5
Operating Segments | Medical
Segment Reporting Information [Line Items]
Capital expenditures	27.8	21.8	22.6
Depreciation and amortization	73.0	75.2	82.4
Operating Segments | Nuclear & Safety
Segment Reporting Information [Line Items]
Capital expenditures	17.7	18.0	11.6
Depreciation and amortization	76.7	86.9	91.1
Corporate and other
Segment Reporting Information [Line Items]
Capital expenditures	3.3	1.0	0.4
Depreciation and amortization	$ 0.7	$ 0.7	$ 1.0