Goodwill and Other Intangible Assets
Changes in the carrying amount of goodwill during the years ended December 31, 2025 and 2024 consisted of the following:
(dollars in millions)North AmericaRest of WorldTotal
Balance at December 31, 2023$574.9 $58.5 $633.4 
Currency translation adjustment(8.7)(1.4)(10.1)
Acquisitions20.5 117.9 138.4 
Balance at December 31, 2024586.7 175.0 761.7 
Currency translation adjustment4.8 (2.0)2.8 
Acquisition adjustments(1)
— (53.9)(53.9)
Balance at December 31, 2025$591.5 $119.1 $710.6 
(1)Measurement period adjustments related to the 2024 acquisitions which impacted the amount of goodwill originally reported.
The carrying amount of other intangible assets consisted of the following:
20252024
December 31 (dollars in millions)Gross
Carrying
Amount
Accumulated
Amortization
NetGross
Carrying
Amount
Accumulated
Amortization
Net
Amortizable intangible assets:
Patents$7.4 $(4.2)$3.2 $3.7 $(3.7)$— 
Customer lists291.7 (201.6)90.1 287.5 (187.3)100.2 
Total amortizable intangible assets299.1 (205.8)93.3 291.2 (191.0)100.2 
Indefinite-lived intangible assets:
Trade names269.0 — 269.0 220.9 — 220.9 
Total intangible assets$568.1 $(205.8)$362.3 $512.1 $(191.0)$321.1 
Amortization expenses of other intangible assets of $14.8 million, $12.7 million, and $12.6 million were recorded in 2025, 2024 and 2023, respectively. In the future, excluding the impact of any future acquisitions, the Company expects amortization expense of approximately $14.5 million annually and the intangible assets will be amortized over a weighted-average period of 9 years.
The Company concluded that no goodwill impairment existed at the time of the annual impairment tests which were performed in the fourth quarters of 2025, 2024 and 2023. No impairments of other intangible assets were recorded in 2025, 2024 and 2023.

About Goodwill & Intangibles Disclosures

Goodwill and intangible asset disclosures reveal the premium paid in acquisitions and how management assesses whether that premium retains its value. Since goodwill is no longer amortized under US GAAP, the annual impairment test is the only mechanism that adjusts carrying values downward — making the assumptions behind that test critically important for investors.

Key signals: a history of goodwill impairments suggests management consistently overpays for acquisitions. Watch the gap between reporting unit fair value and carrying amount — when fair value exceeds carrying amount by less than 10-20%, a small decline in business performance could trigger a write-down. For finite-lived intangibles, examine useful life assumptions across customer relationships, technology, and trade names; aggressive estimates inflate near-term earnings. Compare total intangibles-to-total-assets ratios against peers to assess acquisition dependency. Rising goodwill as a percentage of equity can signal balance sheet fragility.