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Intangible Assets and Goodwill (Tables)
 3 Months Ended
Mar. 31, 2024
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 March 31, 2024 and December 31, 2023:
As of
March 31,
2024
December 31,
2023
(Dollars in millions)
Acquired contractual rights
$923.3
$924.1
Accumulated amortization
(294.4)
(262.0)
Finite-lived intangible assets, net
628.9
662.1
Goodwill
103.9
104.0
Intangible Assets, net
$732.8
$766.1
Schedule of Estimated Amortization Expense The following table summarizes the expected amortization expense for 2024 through 2028 and thereafter (Dollars in
millions):
Year ending December 31,
2024 (excluding the three months ended March 31, 2024)
$98.3
2025
131.0
2026
130.9
2027
120.8
2028
113.7
Thereafter
34.2
$628.9