Business Segments (Goodwill and Intangible Assets by Geographic Area) (Details) - USD ($) $ in Thousands |
Mar. 31, 2026 |
Mar. 31, 2025 |
|---|---|---|
| Schedule of Goodwill and Intangible Assets by Geographic Areas [Line Items] | ||
| Intangible assets, net (including goodwill) | $ 2,880,714 | $ 2,822,775 |
| United States | ||
| Schedule of Goodwill and Intangible Assets by Geographic Areas [Line Items] | ||
| Intangible assets, net (including goodwill) | 2,706,591 | 2,708,922 |
| Rest of world | ||
| Schedule of Goodwill and Intangible Assets by Geographic Areas [Line Items] | ||
| Intangible assets, net (including goodwill) | $ 174,123 | $ 113,853 |