The gross carrying amount and accumulated amortization for intangible assets as of June 30, 2026 and December 31, 2025 consisted of the following (in millions): | | | | | | | | | | | | | | | | | | | June 30, 2026 | | Gross
Carrying
Amount | | Accumulated
Amortization | | Net
Carrying
Amount | | Amortized Intangible Assets | | Customer relationships | $ | 748.6 | | | $ | 335.3 | | | $ | 413.3 | | | Acquired and developed technology | 92.4 | | | 64.2 | | | 28.2 | | | Trade names | 48.8 | | | 14.5 | | | 34.3 | | | Patents | 1.9 | | | 1.8 | | | 0.1 | | | Total | $ | 891.7 | | | $ | 415.8 | | | $ | 475.9 | |
| | | | | | | | | | | | | | | | | | | December 31, 2025 | | Gross
Carrying
Amount | | Accumulated
Amortization | | Net
Carrying
Amount | | Amortized Intangible Assets | | Customer relationships | $ | 758.0 | | | $ | 313.8 | | | $ | 444.2 | | | Acquired and developed technology | 93.3 | | | 59.7 | | | 33.6 | | | Trade names | 49.5 | | | 13.2 | | | 36.3 | | | Patents | 1.9 | | | 1.8 | | | 0.1 | | Total | $ | 902.7 | | | $ | 388.5 | | | $ | 514.2 | | | | | | | | | | | | | | |
|