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Common Stock, Value, Issued Cash and cash equivalents Cash and Cash Equivalents, at Carrying Value Cash Cash Equivalents And Short Term Investments [Line Items] Cash Cash Equivalents And Short Term Investments [Line Items] Cash cash equivalents and short term investments. Debt instrument, convertible, threshold trading days Debt Instrument, Convertible, Threshold Trading Days Raw materials Inventory, Raw Materials, Gross Loss on extinguishment of debt Loss on extinguishment of debt Loss on extinguishment of debt Gain (Loss) on Extinguishment of Debt Financing Activities Net Cash Provided by (Used in) Financing Activities [Abstract] Convertible senior notes, net - long-term Convertible Debt, Noncurrent Shares authorized for issuance pursuant to awards granted under the ESPP Share-Based Payment Arrangement [Member] Finished goods Inventory, Finished Goods, Gross Awards granted under the ESPP Awards to be granted under the ESPP Employee Stock [Member] Net loss per share - basic (in dollars per share) Earnings Per Share, Basic Debt instrument, initial cap price per share (in dollars per share) Option Indexed To Issuers Equity, Cap Price Option Indexed To Issuers Equity Cap Price Proceeds from issuance of common stock under Company stock plans, net of cash used to settle withholding taxes on vested restricted stock Proceeds from Issuance of Common Stock Movement in Standard and Extended Product Warranty Accrual, Increase (Decrease) [Roll Forward] Movement in Standard and Extended Product Warranty Accrual, Increase (Decrease) [Roll Forward] Acquired in-process research and development expenses Acquired in-process research and development expenses Research and Development Asset Acquired in Transaction Other than Business Combination or Joint Venture Formation, Writeoff Purchases of property and equipment included in accounts payable Capital Expenditures Incurred but Not yet Paid Total current liabilities Liabilities, Current Total assets Assets Cost of sales Cost of Goods and Services Sold RSU granted (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period Insulin Pump Insulin Pump [Member] Insulin pump. Purchases of property and equipment Payments to Acquire Property, Plant, and Equipment Other long-term liabilities Other Liabilities, Noncurrent Commitments and contingencies (Note 13) Commitments and Contingencies Class of Warrant or Right [Domain] Class of Warrant or Right [Domain] Warrants exercise price (in dollars per share) Class of Warrant or Right, Exercise Price of Warrants or Rights 2026 Lessee, Operating Lease, Liability, to be Paid, Year Two Debt instrument, convertible, threshold percentage of stock price trigger Debt Instrument, Convertible, Threshold Percentage of Stock Price Trigger Entity Address, City or Town Entity Address, City or Town Operating Lease Right-of-Use Assets and Liabilities Lessee, Leases [Policy Text Block] Debt Instrument [Axis] Debt Instrument [Axis] Proceeds from maturities and redemptions of short-term investments Proceeds from Maturities, Prepayments and Calls of Short-Term Investments Total stock-based compensation expense Share-Based Payment Arrangement, Expense Net loss Net loss Net Income (Loss) Attributable to Parent Investments, Debt and Equity Securities [Abstract] Entity File Number Entity File Number Document Fiscal Year Focus Document Fiscal Year Focus Estimated Fair Value Debt Securities, Available-for-Sale, Maturity, Allocated and Single Maturity Date, Fair Value Income Statement [Abstract] Income Statement [Abstract] Entity Address, Address Line One Entity Address, Address Line One Debt Instrument, Name [Domain] Debt Instrument, Name [Domain] Effect of foreign exchange rate changes on cash Effect of Exchange Rate on Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents, Continuing Operations Lease term Lessee, Operating Lease, Term of Contract Total assets Assets, Fair Value Disclosure 2024 Lessee, Operating Lease, Liability, to be Paid, Remainder of Fiscal Year Weighted-average remaining lease term (in years) Operating Lease, Weighted Average Remaining Lease Term Document Period End Date Document Period End Date Sale of Stock [Axis] Sale of Stock [Axis] Contingent Consideration by Type [Axis] Contingent Consideration by Type [Axis] Strategic Investments Investment, Policy [Policy Text Block] Total undiscounted lease payments Lessee, Operating Lease, Liability, to be Paid Two to Three Years Debt Securities, Available-For-Sale, Fair Value, Maturity, Allocated And Single Maturity Date, After Year Two Through Three Debt Securities, Available-For-Sale, Fair Value, Maturity, Allocated And Single Maturity Date, After Year Two Through Three Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] 2027 Lessee, Operating Lease, Liability, to be Paid, Year Three Prepaid and other current assets Prepaid Expense and Other Assets, Current Document Transition Report Document Transition Report Schedule of Revenue by Major Customers, by Reporting Segments [Table] Schedule of Revenue by Major Customers, by Reporting Segments [Table] Document Quarterly Report Document Quarterly Report Accumulated other comprehensive income Accumulated Other Comprehensive Income (Loss), Net of Tax Entity Current Reporting Status Entity Current Reporting Status Accumulated Deficit Retained Earnings [Member] Amortization of debt issuance costs Amortization of debt issuance costs Amortization of Debt Issuance Costs Asset Acquisition [Domain] Asset Acquisition [Domain] Write-off of fixed assets Impairment of Leasehold Weighted average shares used to compute basic net loss per share (in shares) Weighted Average Number of Shares Outstanding, Basic Unvested restricted stock units Shares underlying unvested restricted stock units Restricted Stock Units (RSUs) Restricted Stock Units (RSUs) [Member] Increase (Decrease) in Stockholders' Equity Increase (Decrease) in Stockholders' Equity [Roll Forward] Payments to acquire investments Payments to Acquire Investments Entity Filer Category Entity Filer Category Additional earnout payment Asset Acquisition, Contingent Consideration Arrangements, Range of Outcomes, Value, High Asset Acquisition, Contingent Consideration Arrangements, Range of Outcomes, Value, High Schedule of Shares of Common Stock Reserved for Future Issuance Schedule Of Common Stock Reserved For Future Issuance [Table Text Block] Schedule of common stock reserved for future issuance. Income Statement Location [Domain] Statement of Income Location, Balance [Domain]