Summary of Significant Accounting Policies (Policies)	6 Months Ended
Summary of Significant Accounting Policies (Policies)	Jun. 30, 2025
Accounting Policies [Abstract]
Basis of Presentation and Principles of Consolidation	Basis of Presentation and Principles of Consolidation The accompanying condensed consolidated financial statements include the accounts of the Company and its wholly-owned subsidiaries and have been prepared in accordance with U.S. generally accepted accounting principles (“U.S. GAAP”) and the accounting disclosure rules and regulations of the SEC regarding interim financial reporting. Certain information and note disclosures normally included in the annual financial statements prepared in accordance with U.S. GAAP have been condensed or omitted pursuant to such rules and regulations. Therefore, these condensed consolidated financial statements should be read in conjunction with the consolidated financial statements and notes included in the 2024 Annual Report on Form 10-K. All intercompany balances and transactions are eliminated upon consolidation. The condensed consolidated balance sheet as of December 31, 2024, included herein, was derived from the audited consolidated financial statements as of that date but does not include all disclosures, including certain notes, required by U.S. GAAP for annual reporting. In the opinion of management, the accompanying condensed consolidated financial statements reflect all normal and recurring adjustments necessary to present fairly the financial position, results of operations, and cash flows for the interim periods. The results for the three and six months ended June 30, 2025 are not necessarily indicative of the results to be expected for any subsequent quarter, the year ending December 31, 2025, or any other period.
Concentration of Credit Risk	Concentration of Credit Risk Financial instruments that potentially subject the Company to concentration of credit risk consist principally of cash and cash equivalents and accounts receivable. As of June 30, 2025, substantially all of the Company’s cash and cash equivalents were invested in money market accounts with one financial institution. The Company also maintains balances in various operating accounts above federally insured limits. The Company has not experienced any significant losses on such accounts and does not believe it is exposed to any significant credit risk of its cash and cash equivalents.
Segment Reporting	Segment Reporting The Company has determined that it operates in one reportable segment, which includes all activities related to the development, manufacture, and sale of the Company's products, software, and other services. The Company’s chief operating decision maker ("CODM"), its chief executive officer ("CEO"), regularly reviews the Company's consolidated net loss, which is reported as net loss and comprehensive loss on the condensed consolidated statements of operations and comprehensive loss, for purposes of evaluating the Company's financial performance, including reviewing budget versus actual results, and determining changes in the Company's allocation of resources across the Company's strategic initiatives. The Company's measure of segment assets is total assets, as reported on the condensed consolidated balance sheets, and substantially all of the Company’s long-lived assets are located in the United States. In addition to the operating expenses presented on the condensed consolidated statements of operations and comprehensive loss, the CODM also reviews certain significant segment expenses. Other segment items include interest income, interest expense, the change in fair value of warrant liabilities, other income (expense), net, and the provision for income taxes. Because the Company operates in one reportable segment, other required segment disclosures are included on the Company's condensed consolidated financial statements. Interest income, interest expense, and the provision for income taxes are included on the condensed consolidated statements of operations and comprehensive loss. Depreciation, amortization, and impairments; write-down of inventories; and purchases of property, equipment, and intangible assets, including capitalized software, are included on the consolidated statements of cash flows.
Use of Estimates	Use of Estimates The Company makes estimates and assumptions about future events that affect the amounts reported in its condensed consolidated financial statements and accompanying notes. Future events and their effects cannot be determined with certainty. On an ongoing basis, management evaluates these estimates and assumptions. The Company bases these estimates on historical and anticipated results and trends and on various other assumptions that the Company believes are reasonable under the circumstances, including assumptions about future events. Changes in estimates are recorded in the period in which they become known. Actual results could differ from those estimates, and any such differences may be material to the Company’s condensed consolidated financial statements. There have been no material changes to the Company’s use of estimates as described in the consolidated financial statements for the year ended December 31, 2024.
Operating Expenses - Other	Operating Expenses – Other The Company classifies certain operating expenses that are not representative of the Company’s ongoing operations as other on the condensed consolidated statements of operations and comprehensive loss. These include costs related to the Company’s business transformation initiative, reductions in force, litigation, and legal settlements.
Recent Accounting Pronouncements Issued but Not Yet Adopted	Recent Accounting Pronouncements Issued but Not Yet Adopted In December 2023, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") 2023-09, Income Taxes (Topic 740): Improvements to Income Tax Disclosures, which introduced new guidance on disclosures for income taxes, including enhancements to the rate reconciliation and income taxes paid disclosures. This guidance is effective for the Company for annual reporting periods beginning January 1, 2025. The Company is currently evaluating the impact that the adoption of this pronouncement will have on the Company’s consolidated financial statements and disclosures. In November 2024, the FASB issued ASU 2024-03, Income Statement—Reporting Comprehensive Income—Expense Disaggregation Disclosures (Subtopic 220-40): Disaggregation of Income Statement Expenses, which introduced new guidance on disclosures of specified information about certain costs and expenses included within expenses presented on the face or the income statements, such as purchases of inventory and employee compensation. This guidance is effective for the Company for annual reporting periods beginning January 1, 2027 and interim reporting periods beginning January 1, 2028. The Company is currently evaluating the impact that the adoption of this pronouncement will have on the Company's consolidated financial statements and disclosures.

Disclosure of accounting policy for segment reporting.

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+ Details

- Definition

Disclosure of accounting policy for the use of estimates in the preparation of financial statements in conformity with generally accepted accounting principles.

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+ Details

Butterfly Network, Inc. 10-Q