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Cloud Computing Costs
6 Months Ended
Jun. 30, 2025
Research and Development [Abstract]  
Cloud Computing Costs Cloud Computing Costs
Capitalized costs to implement cloud computing arrangements at cost and accumulated amortization were as follows: 
(in millions)June 30, 2025December 31, 2024
Short-term portion$36.6 $31.7 
Long-term portion144.1 135.3 
Total capitalized implementation costs180.7 167.0 
Less: accumulated amortization(77.8)(62.4)
Capitalized implementation costs, net$102.9 $104.6 
Amortization expense was $7.9 million and $6.5 million for the three months ended June 30, 2025 and 2024, respectively, and was $15.5 million and $12.6 million for the six months ended June 30, 2025 and 2024, respectively.