Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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+ Details

- Definition

Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

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+ Details

Revenue Recognition (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
Revenue Recognition (Details) - USD ($) $ in Thousands	Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025	Dec. 31, 2025
Disaggregation of Revenue [Line Items]
Total	$ 321,375	$ 294,341	$ 601,420	$ 548,864
Deferred revenues	14,212		14,212		$ 17,999
Point in time
Disaggregation of Revenue [Line Items]
Total	258,803	236,210	485,952	438,194
Over time
Disaggregation of Revenue [Line Items]
Total	62,572	58,131	115,468	110,670
Sterigenics
Disaggregation of Revenue [Line Items]
Total	211,571	194,839	397,706	364,523
Sterigenics \| Point in time
Disaggregation of Revenue [Line Items]
Total	211,571	194,839	397,706	364,523
Sterigenics \| Over time
Disaggregation of Revenue [Line Items]
Total	0	0	0	0
Nordion
Disaggregation of Revenue [Line Items]
Total	49,149	42,431	91,158	74,988
Nordion \| Point in time
Disaggregation of Revenue [Line Items]
Total	47,232	41,371	88,246	73,671
Nordion \| Over time
Disaggregation of Revenue [Line Items]
Total	1,917	1,060	2,912	1,317
Nelson Labs
Disaggregation of Revenue [Line Items]
Total	60,655	57,071	112,556	109,353
Nelson Labs \| Point in time
Disaggregation of Revenue [Line Items]
Total	0	0	0	0
Nelson Labs \| Over time
Disaggregation of Revenue [Line Items]
Total	$ 60,655	$ 57,071	$ 112,556	$ 109,353