| GOODWILL AND OTHER INTANGIBLE ASSETS |
GOODWILL AND OTHER INTANGIBLE ASSETS A summary of the carrying amount of goodwill attributable to each segment, as well as the changes in such, is as follows: | | | | | | | | | | | | | | | | | | | (in thousands) | Metal Cutting | | Infrastructure | | Total | | Gross goodwill | $ | 460,387 | | | $ | 633,211 | | | $ | 1,093,598 | | | Accumulated impairment losses | (177,661) | | | (633,211) | | | (810,872) | | Balance as of June 30, 2025 | $ | 282,726 | | | $ | — | | | $ | 282,726 | | | | | | | | Activity for the six months ended December 31, 2025: | | | | | | | | | | | | | Change in gross goodwill due to translation | 247 | | | — | | | 247 | | | | | | | | | | | | | | | Gross goodwill | 460,634 | | | 633,211 | | | 1,093,845 | | | Accumulated impairment losses | (177,661) | | | (633,211) | | | (810,872) | | Balance as of December 31, 2025 | $ | 282,973 | | | $ | — | | | $ | 282,973 | |
The components of our other intangible assets were as follows: | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Estimated Useful Life (in years) | | December 31, 2025 | June 30, 2025 | | (in thousands) | | Gross Carrying Amount | | Accumulated Amortization | | | Gross Carrying Amount | | Accumulated Amortization | | | | | | | | | | | | | Technology-based and other | 4 to 20 | | $ | 32,786 | | | $ | (26,723) | | | | $ | 32,699 | | | $ | (26,243) | | | Customer-related | 10 to 21 | | 160,039 | | | (114,529) | | | | 159,722 | | | (111,184) | | | Unpatented technology | 10 to 30 | | 26,467 | | | (25,051) | | | | 26,373 | | | (24,281) | | | Trademarks | 5 to 20 | | 23,974 | | | (14,418) | | | | 23,917 | | | (13,793) | | | | | | | | | | | | | | Total | | | $ | 243,266 | | | $ | (180,721) | | | | $ | 242,711 | | | $ | (175,501) | |
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