The following table details the changes to the carrying amount of goodwill for the years indicated: | | | | | | | | | | | | | Year ended December 31 | | 2025 | | 2024 | Opening balance | $ | 340.5 | | | $ | 321.7 | | Acquisitions through business combinations, foreign exchange and other | (7.4) | | | 18.8 | | | | | | Ending balance | $ | 333.1 | | | $ | 340.5 | |
At December 31, 2025, our goodwill balance consists of the following: | | | | | | | | | | | | | Reportable Segment | | Amount | | Capital Equipment reporting unit | ATS | | $ | 131.1 | | | Aerospace and Defense (A&D) reporting unit | ATS | | 66.3 | | | PCI Private Limited reporting unit | ATS | | 123.8 | | | NCS reporting unit | CCS | | 11.9 | | | | | $ | 333.1 | |
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