Revenue and Contract Acquisition Costs - Summary of Revenue from Contracts with Customers (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Disaggregation of Revenue [Line Items]
Revenue	$ 226.3	$ 177.1	$ 424.3	$ 336.7
U.S. Omnipod
Disaggregation of Revenue [Line Items]
Revenue	128.8	98.1	245.4	184.2
International Omnipod
Disaggregation of Revenue [Line Items]
Revenue	73.2	62.7	146.3	119.6
Total Omnipod
Disaggregation of Revenue [Line Items]
Revenue	202.0	160.8	391.7	303.8
Drug Delivery
Disaggregation of Revenue [Line Items]
Revenue	$ 24.3	$ 16.3	$ 32.6	$ 32.9
Customer 1
Disaggregation of Revenue [Line Items]
Total revenue, percentage	21.00%	12.00%	21.00%	12.00%
Customer 2
Disaggregation of Revenue [Line Items]
Total revenue, percentage	21.00%	21.00%	21.00%	21.00%