Revenue and Contract Acquisition Costs - Summary of Revenue from Contracts with Customers (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Disaggregation of Revenue [Line Items]
Revenue (Related Party Transactions Note 16)	$ 263.2	$ 226.3	$ 515.5	$ 424.3
U.S. Omnipod
Disaggregation of Revenue [Line Items]
Revenue (Related Party Transactions Note 16)	150.5	128.8	293.8	245.4
International Omnipod
Disaggregation of Revenue [Line Items]
Revenue (Related Party Transactions Note 16)	91.6	73.2	181.5	146.3
Total Omnipod
Disaggregation of Revenue [Line Items]
Revenue (Related Party Transactions Note 16)	242.1	202.0	475.3	391.7
Drug Delivery
Disaggregation of Revenue [Line Items]
Revenue (Related Party Transactions Note 16)	$ 21.1	$ 24.3	$ 40.2	$ 32.6