| Revenue Recognition |
Revenue Recognition The following table shows disaggregated net revenues from contracts with external customers by timing of revenue and by segment for the three and six months ended June 30, 2026 and 2025: | | | | | | | | | | | | | | | | | | | | | | | | | (thousands of U.S. dollars) | Three Months Ended June 30, 2026 | | Sterigenics | | Nordion | | Nelson Labs | | Consolidated | | Point in time | $ | 211,571 | | | $ | 47,232 | | | $ | — | | | $ | 258,803 | | | Over time | — | | | 1,917 | | | 60,655 | | | 62,572 | | | Total | $ | 211,571 | | | $ | 49,149 | | | $ | 60,655 | | | $ | 321,375 | |
| | | | | | | | | | | | | | | | | | | | | | | | | (thousands of U.S. dollars) | Three Months Ended June 30, 2025 | | Sterigenics | | Nordion | | Nelson Labs | | Consolidated | | Point in time | $ | 194,839 | | | $ | 41,371 | | | $ | — | | | $ | 236,210 | | | Over time | — | | | 1,060 | | | 57,071 | | | 58,131 | | | Total | $ | 194,839 | | | $ | 42,431 | | | $ | 57,071 | | | $ | 294,341 | |
| | | | | | | | | | | | | | | | | | | | | | | | | (thousands of U.S. dollars) | Six Months Ended June 30, 2026 | | Sterigenics | | Nordion | | Nelson Labs | | Consolidated | | Point in time | $ | 397,706 | | | $ | 88,246 | | | $ | — | | | $ | 485,952 | | | Over time | — | | | 2,912 | | | 112,556 | | | 115,468 | | | Total | $ | 397,706 | | | $ | 91,158 | | | $ | 112,556 | | | $ | 601,420 | |
| | | | | | | | | | | | | | | | | | | | | | | | | (thousands of U.S. dollars) | Six Months Ended June 30, 2025 | | Sterigenics | | Nordion | | Nelson Labs | | Consolidated | | Point in time | $ | 364,523 | | | $ | 73,671 | | | $ | — | | | $ | 438,194 | | | Over time | — | | | 1,317 | | | 109,353 | | | 110,670 | | | Total | $ | 364,523 | | | $ | 74,988 | | | $ | 109,353 | | | $ | 548,864 | |
When we receive consideration from a customer prior to transferring goods or services under the terms of a sales contract, we record deferred revenue, which represents a contract liability. Deferred revenue totaled $14.2 million and $18.0 million at June 30, 2026 and December 31, 2025, respectively. We recognize deferred revenue after we have transferred control of the goods or services to the customer and all revenue recognition criteria are met.
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