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Intangible Assets and Goodwill (Tables) | 6 Months Ended
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Jun. 30, 2025
Goodwill and Intangible Assets Disclosure [Abstract] |
Schedule of Carrying Amount of Intangible Assets | The following table summarizes the carrying amount of intangible assets as of June 30, 2025 and December 31, 2024:
| As of
| June 30, 2025 |  | December 31, 2024
| (Dollars in millions)
Acquired contractual rights | $929.7 |  | $922.7
Accumulated amortization | (460.6) |  | (392.2)
Finite-lived intangible assets, net | 469.1 |  | 530.5
Goodwill | 104.5 |  | 103.6
Intangible Assets, net | $573.6 |  | $634.1
Schedule of Estimated Amortization Expense | The following table summarizes the expected amortization expense for 2025 through 2029 and thereafter (Dollars in millions):
Year ending December 31, |
2025 (excluding the six months ended June 30, 2025) | $66.1
2026 | 132.0
2027 | 121.8
2028 | 114.7
2029 | 31.9
Thereafter | 2.6
| $469.1

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