XML 53 R13.htm IDEA: XBRL DOCUMENT v3.25.1
Intangible Assets
 3 Months Ended
Mar. 31, 2025
Goodwill and Intangible Assets Disclosure [Abstract]  
Intangible Assets Intangible Assets
The following table presents information relating to our recognized intangible assets.
March 31,
2025		December 31,
2024
(dollars in millions)Gross Carrying AmountAccumulated AmortizationNet
Carrying Amount		Gross Carrying AmountAccumulated AmortizationNet
Carrying Amount
Developed product rights (1)
$41.6 $9.0 $32.6 $40.5 $7.7 $32.8 
Acquired IPR&D (2)
$3.8 $— 3.8 $3.7 $— 3.7 
Total intangible assets, net$36.4 $36.5 
_________________________
(1) Developed product rights have a useful life of 10 to 16 years.
(2) Acquired IPR&D is considered indefinite lived until the completion or abandonment of the associated research and development efforts.
The following table presents approximate future annual amortization expense for our finite-lived intangible assets as of March 31, 2025.
(in millions)Amount
Year ending December 31, 2025 (9 months remaining)
$3.0 
Year ending December 31, 2026
$4.0 
Year ending December 31, 2027
$4.0 
Year ending December 31, 2028
$4.0 
Year ending December 31, 2029
$4.0 
Thereafter$13.6