v3.26.1
Goodwill and Other Intangible Assets
 6 Months Ended
Jun. 30, 2026
Intangible Asset, Goodwill and Other [Abstract]  
Goodwill and Other Intangible Assets Goodwill and Other Intangible Assets
Changes to goodwill during the six months ended June 30, 2026 were as follows:
(thousands of U.S. dollars)SterigenicsNordionNelson LabsTotal
Goodwill at December 31, 2025$658,919 $267,771 $176,542 $1,103,232 
Changes due to foreign currency exchange rates(1,422)(9,529)(1,026)(11,977)
Goodwill at June 30, 2026$657,497 $258,242 $175,516 $1,091,255 
Other intangible assets consisted of the following:
(thousands of U.S. dollars)
Gross Carrying
Amount
Accumulated
Amortization
As of June 30, 2026
Finite-lived intangible assets
Customer relationships$165,657 $88,975 
Proprietary technology36,488 19,516 
Trade names2,400 2,240 
Land-use rights9,126 2,494 
Sealed source and supply agreements162,691 92,272 
Other600 560 
Total finite-lived intangible assets376,962 206,057 
Indefinite-lived intangible assets
Regulatory licenses and other(a)
73,338 — 
Trade names / trademarks25,928 — 
Total indefinite-lived intangible assets99,266 — 
Total$476,228 $206,057 
As of December 31, 2025
Gross Carrying
Amount
Accumulated
Amortization
Finite-lived intangible assets
Customer relationships$167,313 $84,083 
Proprietary technology37,775 19,253 
Trade names2,400 2,000 
Land-use rights8,861 2,313 
Sealed source and supply agreements168,740 91,405 
Other900 790 
Total finite-lived intangible assets385,989 199,844 
Indefinite-lived intangible assets
Regulatory licenses and other(a)
76,064 — 
Trade names / trademarks26,018 — 
Total indefinite-lived intangible assets102,082 — 
Total$488,071 $199,844 
(a)Includes certain transportation certifications, a class 1B nuclear license and other intangible assets related to obtaining such licensure. These assets are considered indefinite-lived as the decision for renewal by the Canadian Nuclear Safety Commission (“CNSC”) is highly based on a licensee’s previous assessments, reported incidents, and annual compliance and inspection results. New applications for a license can take a significant amount of time and cost; whereas an existing licensee with a historical record of compliance and current operating conditions is generally expected to obtain renewal, as Nordion has demonstrated over its 75-year history. In September 2025, the CNSC renewed Nordion’s Class 1B nuclear license for a 25-year term.
Amounts include the impact of foreign currency translation. Fully amortized amounts are written off.
Amortization expense for finite-lived intangible assets was $5.6 million and $11.9 million for the three months ended June 30, 2026 and 2025, respectively. $3.0 million and $9.3 million were included in “Amortization of intangible assets” in the Consolidated Statements of Operations and Comprehensive Income for the three months ended June 30, 2026 and 2025, respectively, whereas the remainder was included in “Cost of revenues.”
Amortization expense for finite-lived intangible assets was $11.2 million and $30.6 million for the six months ended June 30, 2026 and 2025, respectively. $6.0 million and $24.6 million were included in “Amortization of intangible assets” in the Consolidated Statements of Operations and Comprehensive Income for the six months ended June 30, 2026 and 2025, respectively, whereas the remainder was included in “Cost of revenues.”
The estimated aggregate amortization expense for finite-lived intangible assets for each of the next five years and thereafter is as follows:
(thousands of U.S. dollars)
For the remainder of 2026$10,841 
202720,616 
202820,068 
202919,959 
203019,959 
Thereafter79,462 
Total$170,905