| Intangible assets, net and Goodwill |
Intangible assets, net and Goodwill Intangible assets, net Identifiable intangible assets consisted of the following as of December 31, 2025 and 2024: | | | | | | | | | | | | | | | | | | | | | As of December 31, 2025 | | Gross Carrying Amount | | Accumulated Amortization | | Net Carrying Amount | Licenses and service agreements | | $ | 1,318,987 | | | $ | (422,887) | | | $ | 896,100 | | Trade names | | 162,903 | | | (65,877) | | | 97,026 | | Non-compete agreements | | 25,244 | | | (14,591) | | | 10,653 | | Intellectual property and know-how | | 9,577 | | | (3,790) | | | 5,787 | | Internal-use software | | 1,716 | | | (220) | | | 1,496 | | Customer relationships | | 71 | | | (18) | | | 53 | | Intangible assets, net(1) | | $ | 1,518,498 | | | $ | (507,383) | | | $ | 1,011,115 | | | | | | | | | (1) Intangible assets held by the Company’s international subsidiaries are subject to foreign currency translation adjustments. |
| | | | | | | | | | | | | | | | | | | | | As of December 31, 2024 | | Gross Carrying Amount | | Accumulated Amortization | | Net Carrying Amount | Licenses and service agreements | | $ | 1,289,829 | | | $ | (331,589) | | | $ | 958,240 | | Trade names | | 166,843 | | | (60,375) | | | 106,468 | | Non-compete agreements | | 32,337 | | | (19,490) | | | 12,847 | | Intellectual property and know-how | | 9,365 | | | (1,889) | | | 7,476 | | Internal-use software | | 370 | | | (4) | | | 366 | | Intangible assets, net(1) | | $ | 1,498,744 | | | $ | (413,347) | | | $ | 1,085,397 | | | | | | | | | (1) Intangible assets held by the Company’s international subsidiaries are subject to foreign currency translation adjustments. |
During the year ended December 31, 2025, the gross carrying amount of intangible assets increased by $19.8 million, primarily driven by foreign currency translation. Amortization expense for the Company’s intangible assets was $100.4 million, $109.2 million and $105.7 million for the years ended December 31, 2025, 2024 and 2023. As of December 31, 2025, the Company’s estimated intangible amortization expense over the next five years is as follows: | | | | | | | | | Fiscal Year | | Estimated Amortization | 2026 | | $ | 100,271 | | 2027 | | 99,638 | | 2028 | | 96,081 | | 2029 | | 89,951 | | 2030 | | 85,643 | |
The Company’s remaining weighted average amortization period for its outstanding intangibles as of December 31, 2025 was 11.82 years. The remaining weighted average amortization period for each major class as of December 31, 2025 was as follows: | | | | | | | | | Asset Class | | Weighted Average Amortization (years): | Licenses and service agreements | | 11.99 | Trade names | | 11.53 | Non-compete agreements | | 5.45 | Internal-use software | | 4.77 | Intellectual property and know-how | | 3.03 | Customer relationships | | 2.25 |
Goodwill The changes in the Company’s Goodwill as of December 31, 2025 and 2024 were as follows: | | | | | | | | | | | | | | | | | | | | | | | Domestic | | International | | Total | Balance at December 31, 2023 | | $ | 551,181 | | | $ | 75,447 | | | $ | 626,628 | | Acquisitions | | — | | | 6,137 | | | 6,137 | | Measurement period adjustment | | — | | | 63 | | | 63 | | Effect of exchange rate differences | | — | | | (3,944) | | | (3,944) | | Balance at December 31, 2024 | | 551,181 | | | 77,703 | | | 628,884 | | Acquisitions (1) | | — | | | 1,328 | | | 1,328 | | Measurement period adjustment | | — | | | (3,984) | | | (3,984) | | Effect of exchange rate differences | | — | | | 8,889 | | | 8,889 | | Balance at December 31, 2025 | | $ | 551,181 | | | $ | 83,936 | | | $ | 635,117 | | | | | | | | | (1) Incurred in connection with an individually immaterial acquisition consummated during the second quarter of 2025 within the Company's international operations. |
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