6. Goodwill and Other Intangible Assets

The changes in the carrying value of goodwill by reportable segment are as follows:
 (in millions)Precision DevicesMedTech & Specialty AudioTotal
Balance at January 1, 2024$132.8 $137.7 $270.5 
Measurement period adjustments(0.3)— (0.3)
Foreign currency translation(0.4)— (0.4)
Balance at December 31, 2024132.1 137.7 269.8 
Foreign currency translation0.5 — 0.5 
Balance at December 31, 2025$132.6 $137.7 $270.3 

The Company recorded measurement period adjustments totaling $0.3 million to goodwill during the year ended December 31, 2024 related to the 2023 acquisition of CD.
The gross carrying value and accumulated amortization for each major class of intangible assets are as follows:
December 31, 2025December 31, 2024
(in millions)Gross Carrying
Amount
Accumulated
Amortization
Gross Carrying
Amount
Accumulated
Amortization
Amortized intangible assets:
Trademarks$15.2 $2.8 $15.2 $1.7 
Customer relationships118.4 39.5 118.5 27.3 
Developed technology
26.3 8.8 26.3 6.0 
Other0.8 0.5 0.8 0.4 
Total160.7 51.6 160.8 35.4 
Unamortized intangible assets:
Trademarks32.0 32.0 
Total intangible assets, net$141.1 $157.4 
As of December 31, 2025, the weighted average remaining useful lives for the amortizable intangible assets are: trademarks at 12.0 years, customer relationships at 7.4 years, developed technology at 6.9 years, and other at 5.3 years. The weighted average remaining useful life for all amortizable intangible assets was 7.8 years as of December 31, 2025.

Total amortization expense for the years ended December 31, 2025, 2024, and 2023 was $16.2 million, $17.0 million, and $7.5 million, respectively. Amortization expense for the next five years and thereafter, based on current definite-lived intangible balances, is estimated to be as follows:
(in millions)
2026$16.0 
202715.9 
202815.2 
202912.8 
203011.7 
2031 and thereafter37.5 
Total$109.1 

Historical Timeline

Fiscal YearFiled
2025Feb 9, 2026Showing above
2024Feb 13, 2025
2023Feb 21, 2024
2022Feb 9, 2023
2021Feb 9, 2022

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.