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Cloud Computing Costs
3 Months Ended
Mar. 31, 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)March 31, 2025December 31, 2024
Short-term portion$32.7 $31.7 
Long-term portion140.0 135.3 
Total capitalized implementation costs172.7 167.0 
Less: accumulated amortization(70.0)(62.4)
Capitalized implementation costs, net$102.7 $104.6 
Amortization expense was $7.6 million and $6.1 million for the three months ended March 31, 2025 and 2024, respectively.