| Goodwill and Other Intangible Assets, net |
Goodwill and Other Intangible Assets, net Goodwill Goodwill totaled $516.6 million as of both December 31, 2025 and June 30, 2025 and relates to prior acquisitions. Other Intangible Assets Other intangible assets, net consisted of the following (in thousands): | | | | | | | | | | | | | | | | | | | Estimated Useful Lives (Years) | | December 31, 2025 | | June 30, 2025 | | Amortizable: | | | | | | | Costs: | | | | | | | Customer relationships | 12-15 | | $ | 213,202 | | | $ | 213,202 | | | Trade names | 3-15 | | 125,579 | | | 125,579 | | | Backlog | 1-2 | | 68,454 | | | 68,454 | | | Noncompete agreements | 5 | | 8,854 | | | 8,854 | | | Trademarks | 10 | | 94 | | | — | | | Total amortizable intangibles | | | 416,183 | | | 416,089 | | | Accumulated amortization: | | | | | | | Customer relationships | | | (26,121) | | | (18,784) | | | Trade name | | | (16,100) | | | (11,634) | | | Backlog | | | (58,640) | | | (45,963) | | | Noncompete agreements | | | (3,322) | | | (2,437) | | | Trademarks | | | (3) | | | — | | | Total accumulated amortization | | | (104,186) | | | (78,818) | | | Other intangible assets, net | | | $ | 311,997 | | | $ | 337,271 | |
Amortization expense for the three and six months ended December 31, 2025 was $12.5 million and $25.3 million, respectively. Amortization expense for the three and six months ended December 31, 2024 was $14.9 million and $32.4 million, respectively.
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