| Acquisitions, Goodwill And Other Intangible Assets |
GOODWILL AND OTHER INTANGIBLE ASSETS Goodwill
Changes in the carrying amount of goodwill by reportable segment were as follows: | | | | | | | | | | | | | | | | | | | (In thousands) | OEM Segment | | Aftermarket Segment | | Total | | Net balance – December 31, 2025 | $ | 447,971 | | | $ | 174,212 | | | $ | 622,183 | | | | | | | | | | | | | | | Foreign currency translation | (2,310) | | | (325) | | | (2,635) | | Net balance – March 31, 2026 | $ | 445,661 | | | $ | 173,887 | | | $ | 619,548 | |
Goodwill represents the excess of the total consideration given in an acquisition of a business over the fair value of the net tangible and identifiable intangible assets acquired. Goodwill is not amortized, but instead is tested at the reporting unit level for impairment annually in November, or more frequently if certain circumstances indicate a possible impairment may exist. Other Intangible Assets
Other intangible assets consisted of the following at March 31, 2026: | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | (In thousands) | Gross Cost | | Accumulated Amortization | | Net Balance | | Estimated Useful Life in Years | | Customer relationships | $ | 540,604 | | | $ | 265,458 | | | $ | 275,146 | | | 6 | to | 20 | | Patents | 85,597 | | | 53,175 | | | 32,422 | | | 3 | to | 20 | | Trade names (finite life) | 108,920 | | | 37,810 | | | 71,110 | | | 3 | to | 20 | | Trade names (indefinite life) | 7,432 | | | — | | | 7,432 | | | Indefinite | | Non-compete agreements | 3,683 | | | 3,536 | | | 147 | | | 3 | to | 6 | | Other | 458 | | | 229 | | | 229 | | | 2 | to | 12 | | | | | | | | | | Other intangible assets | $ | 746,694 | | | $ | 360,208 | | | $ | 386,486 | | | | | |
Other intangible assets consisted of the following at December 31, 2025: | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | (In thousands) | Gross Cost | | Accumulated Amortization | | Net Balance | | Estimated Useful Life in Years | | Customer relationships | $ | 553,520 | | | $ | 267,043 | | | $ | 286,477 | | | 6 | to | 20 | | Patents | 95,119 | | | 60,163 | | | 34,956 | | | 3 | to | 20 | | Trade names (finite life) | 109,327 | | | 36,040 | | | 73,287 | | | 3 | to | 20 | | Trade names (indefinite life) | 7,432 | | | — | | | 7,432 | | | Indefinite | | Non-compete agreements | 4,183 | | | 4,005 | | | 178 | | | 3 | to | 6 | | Other | 458 | | | 220 | | | 238 | | | 2 | to | 12 | | | | | | | | | | Other intangible assets | $ | 770,039 | | | $ | 367,471 | | | $ | 402,568 | | | | | |
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| Acquisitions, Goodwill And Other Intangible Assets |
GOODWILL AND OTHER INTANGIBLE ASSETS Goodwill
Changes in the carrying amount of goodwill by reportable segment were as follows: | | | | | | | | | | | | | | | | | | | (In thousands) | OEM Segment | | Aftermarket Segment | | Total | | Net balance – December 31, 2025 | $ | 447,971 | | | $ | 174,212 | | | $ | 622,183 | | | | | | | | | | | | | | | Foreign currency translation | (2,310) | | | (325) | | | (2,635) | | Net balance – March 31, 2026 | $ | 445,661 | | | $ | 173,887 | | | $ | 619,548 | |
Goodwill represents the excess of the total consideration given in an acquisition of a business over the fair value of the net tangible and identifiable intangible assets acquired. Goodwill is not amortized, but instead is tested at the reporting unit level for impairment annually in November, or more frequently if certain circumstances indicate a possible impairment may exist. Other Intangible Assets
Other intangible assets consisted of the following at March 31, 2026: | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | (In thousands) | Gross Cost | | Accumulated Amortization | | Net Balance | | Estimated Useful Life in Years | | Customer relationships | $ | 540,604 | | | $ | 265,458 | | | $ | 275,146 | | | 6 | to | 20 | | Patents | 85,597 | | | 53,175 | | | 32,422 | | | 3 | to | 20 | | Trade names (finite life) | 108,920 | | | 37,810 | | | 71,110 | | | 3 | to | 20 | | Trade names (indefinite life) | 7,432 | | | — | | | 7,432 | | | Indefinite | | Non-compete agreements | 3,683 | | | 3,536 | | | 147 | | | 3 | to | 6 | | Other | 458 | | | 229 | | | 229 | | | 2 | to | 12 | | | | | | | | | | Other intangible assets | $ | 746,694 | | | $ | 360,208 | | | $ | 386,486 | | | | | |
Other intangible assets consisted of the following at December 31, 2025: | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | (In thousands) | Gross Cost | | Accumulated Amortization | | Net Balance | | Estimated Useful Life in Years | | Customer relationships | $ | 553,520 | | | $ | 267,043 | | | $ | 286,477 | | | 6 | to | 20 | | Patents | 95,119 | | | 60,163 | | | 34,956 | | | 3 | to | 20 | | Trade names (finite life) | 109,327 | | | 36,040 | | | 73,287 | | | 3 | to | 20 | | Trade names (indefinite life) | 7,432 | | | — | | | 7,432 | | | Indefinite | | Non-compete agreements | 4,183 | | | 4,005 | | | 178 | | | 3 | to | 6 | | Other | 458 | | | 220 | | | 238 | | | 2 | to | 12 | | | | | | | | | | Other intangible assets | $ | 770,039 | | | $ | 367,471 | | | $ | 402,568 | | | | | |
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