| 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 | $ | 456,874 | | | $ | 633,211 | | | $ | 1,090,085 | | | Accumulated impairment losses | (177,661) | | | (633,211) | | | (810,872) | | Balance as of June 30, 2026 | $ | 279,213 | | | $ | — | | | $ | 279,213 | | | | | | | | Activity for the three months ended September 30, 2026: | | | | | | | | | | | | | Change in gross goodwill due to translation | (940) | | | — | | | (940) | | | | | | | | | | | | | | | Gross goodwill | 455,934 | | | 633,211 | | | 1,089,145 | | | Accumulated impairment losses | (177,661) | | | (633,211) | | | (810,872) | | Balance as of September 30, 2026 | $ | 278,273 | | | $ | — | | | $ | 278,273 | |
The components of our other intangible assets were as follows: | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Estimated Useful Life (in years) | | September 30, 2026 | June 30, 2026 | | (in thousands) | | Gross Carrying Amount | | Accumulated Amortization | | | Gross Carrying Amount | | Accumulated Amortization | | | | | | | | | | | | | Technology-based and other | 4 to 20 | | $ | 25,668 | | | $ | (22,539) | | | | $ | 27,800 | | | $ | (23,805) | | | Customer-related | 10 to 21 | | 159,984 | | | (118,889) | | | | 159,836 | | | (117,352) | | | Unpatented technology | 10 to 30 | | 26,636 | | | (26,222) | | | | 26,586 | | | (25,852) | | | Trademarks | 5 to 20 | | 23,499 | | | (15,145) | | | | 23,542 | | | (14,869) | | | | | | | | | | | | | | Total | | | $ | 235,787 | | | $ | (182,795) | | | | $ | 237,764 | | | $ | (181,878) | |
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