Annual and transition report of foreign private issuers [Sections 13 or 15(d)]

Other Intangible Assets, Net

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Other Intangible Assets, Net
 12 Months Ended
Dec. 31, 2024
Goodwill and Intangible Assets Disclosure [Abstract]  
Other Intangible Assets, Net
Note 9. Other Intangible Assets, Net
Other intangible assets consisted of the following:
December 31, 2024 December 31, 2023
Carrying Amount, net of Impairment Accumulated Amortization Net book value   Carrying Amount, net of Impairment Accumulated Amortization Net book value
(U.S. $ in thousands)
Developed technology $ 402,976  $ (318,312) $ 84,664  $ 403,180  $ (300,780) $ 102,400 
Patents 21,902  (11,726) 10,176  19,396  (10,246) 9,150 
Trademarks and trade names 22,149  (17,957) 4,192  22,286  (15,936) 6,350 
Customer relationships 102,560  (95,339) 7,221  102,520  (92,639) 9,881 
Capitalized software development costs 3,117  (3,117) —  4,367  (4,367) — 
$ 552,704  $ (446,451) $ 106,253  $ 551,749  $ (423,968) $ 127,781 
Amortization expenses
Amortization expense relating to intangible assets for the years ended December 31, 2024, 2023 and 2022, was approximately $23.9 million, $26.5 million and $37.1 million, respectively.
As of December 31, 2024, estimated future amortization expense relating to definite life intangible assets for each of the next five years and thereafter were as follows:
Estimated amortization expenses
Year ending December 31, (U.S. $ in thousands)
2025 $ 21,440 
2026 21,350 
2027 20,428 
2028 16,404 
2029 10,558 
2030 and thereafter 16,073 
Total $ 106,253 
No impairment charges were recorded during 2024, 2023 and 2022.