Basis of Presentation and Summary of Significant Accounting Policies (Policies)	9 Months Ended
	Sep. 30, 2023
Accounting Policies [Abstract]
Basis of Presentation	Basis of Presentation The accompanying financial statements reflect the consolidated operations of Insulet Corporation and its subsidiaries (“Insulet” or the “Company”). The unaudited consolidated financial statements have been prepared in United States dollars, in accordance with accounting principles generally accepted in the United States of America (“GAAP”). The preparation of the consolidated financial statements in conformity with GAAP requires management to make use of estimates and assumptions that affect the reported amounts of assets and liabilities, disclosure of contingent assets and liabilities, and the reported amounts of revenues and expenses. Actual results may differ from those estimates. In management’s opinion, the unaudited consolidated financial statements contain all normal recurring adjustments necessary for a fair statement of the interim results reported. Operating results for the nine months ended September 30, 2023 are not necessarily indicative of the results that may be expected for the full year ending December 31, 2023, or for any other subsequent interim period. The year-end balance sheet data was derived from audited consolidated financial statements. These unaudited consolidated financial statements do not include all of the annual disclosures required by GAAP; accordingly, they should be read in conjunction with the Company’s audited consolidated financial statements contained in the Company’s Annual Report on Form 10-K for the year ended December 31, 2022.
Leases	Leases The Company determines if an arrangement includes a lease at inception. Lease agreements generally have lease and non-lease components, which are accounted for separately. At lease commencement, the Company recognizes lease liabilities equal to the present value of the future lease payments and lease assets representing the right to use the underlying asset throughout the lease term. Certain leases may contain variable lease payments, including periodic payments that can be avoided by the Company. Variable payments that do not depend on an index or rate are excluded from the right-of-use asset and lease liability and are recognized as expenses in the period in which the obligation for those payments is incurred. Certain of the Company’s leases contain options to extend and/or terminate the lease, and/or to purchase the underlying asset. The Company assesses if it is reasonably certain to exercise options to extend the lease or if it is reasonably certain not to exercise options to terminate the lease to determine whether periods covered by those options should be included in the lease term when the Company measures the lease liability. The Company’s leases do not provide an implicit rate; accordingly, the Company uses an incremental borrowing rate based on the information available at lease commencement in determining the present value of lease payments. The Company’s incremental borrowing rate reflects a secured rate that considers the term of the lease, the nature of the underlying asset and the economic environment. The Company excludes leases with an expected term of one year or less from recognition on the consolidated balance sheet. Right-of-use assets are calculated as the initial measurement of the lease liability plus lease payments made prior to lease commencement and initial direct costs incurred, less lease incentives received. Lease expense is recognized on a straight-line basis over the lease term. For finance leases, the right-of-use asset is amortized to amortization expense and interest expense is recorded in connection with the lease liability.
Shipping and Handling costs	Shipping and Handling CostsShipping and handling costs included in selling, general and administrative expenses
Fair Value Measurements	Fair Value Measurements Fair value is defined as the price that would be received from the sale of an asset or paid to transfer a liability in the principal or most advantageous market in an orderly transaction between market participants on the measurement date. To measure fair value of assets and liabilities, the Company uses the following fair value hierarchy based on three levels of inputs: Level 1—observable inputs, such as quoted prices in active markets for identical assets or liabilities; Level 2—significant other observable inputs that are observable either directly or indirectly; and Level 3—significant unobservable inputs for which there are little or no market data, which require the Company to develop its own assumptions. Certain of the Company’s financial instruments, including cash and cash equivalents, accounts receivable, accounts payable, accrued expenses and other liabilities are carried at cost, which approximates their fair value because of their short-term maturity.
Product Warranty Costs	Product Warranty CostsThe Company provides a four-year warranty on Personal Diabetes Managers (“PDMs”) and Controllers sold in the United States and Europe and a five-year warranty on 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 operations.