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Accrued Expenses and Other Current Liabilities
 9 Months Ended
Sep. 30, 2025
Payables and Accruals [Abstract]  
Accrued Expenses and Other Current Liabilities Accrued Expenses and Other Current Liabilities
The components of accrued expenses and other current liabilities were as follows:
(in millions)September 30, 2025December 31, 2024
Accrued rebates$184.0 $148.3 
Employee compensation and related costs172.5 142.9 
Professional and consulting services54.3 51.6 
Other107.9 81.2 
Accrued expenses and other current liabilities$518.7 $423.9 
Product Warranty Costs
The Company provides a four-year warranty on its Controllers and Personal Diabetes Managers (“PDMs”) sold in the United States and Europe and a five-year warranty on Controllers and PDMs sold in Canada and may replace Pods that do not function in accordance with product specifications. The Company estimates its warranty obligation at the time the product is shipped based on historical experience and the estimated cost to service the claims. Cost to service the claims reflects the current product cost, reclaim costs, shipping and handling costs and direct and incremental distribution and customer service support costs. Since the Company continues to introduce new products and versions, the anticipated performance of the product over the warranty period is also considered in estimating warranty reserves. Warranty expense is recorded in cost of revenue in the consolidated statements of income.
Reconciliations of the changes in the Company’s product warranty liability were as follows: 
Three Months Ended September 30,Nine Months Ended September 30,
(in millions)2025202420252024
Product warranty liability at beginning of period$17.1 $11.6 $13.9 $10.2 
Warranty expense6.1 6.8 20.5 18.1 
Change in estimate
— — — (0.5)
Warranty fulfillment(6.5)(5.5)(17.7)(14.9)
Product warranty liability at the end of period$16.7 $12.9 $16.7 $12.9