| Cover | May 27, 2021 |
| Document Information [Line Items] | |
| Document Type | 8-K/A |
| Amendment Flag | true |
| Amendment Description | Butterfly Network, Inc. (the "Company") has determined that an administrative error occurred in connection with the filing of its Current Report on Form 8-K that was filed with the Securities and Exchange Commission (the "SEC") on May 28, 2021 (the "Original Report"). While the Original Report was reviewed and approved by the appropriate officer of the Company prior to its filing with the SEC, the Company did not obtain a manual or electronic signature from the Company's officer whose conformed signature was set forth in the Original Report, as required by Rule 12b-11 and Rule 302(b) of Regulation S-T under the Securities Exchange Act of 1934, as amended (the "Signature Authorization Rules"). This Amendment No. 1 on Form 8-K/A (the "Amendment No. 1") to the Original Report is being filed in order to reflect that the Company has obtained the required signature to this Amendment No. 1 from the appropriate officer, as required by the Signature Authorization Rules. Except as described above, this Amendment No. 1 does not modify or update disclosure in, or exhibits to, the Original Report. Furthermore, this Amendment No. 1 does not change the previously reported financial results, if any, nor does it reflect events occurring after the date of the Original Report. Information not affected by this Amendment No. 1 remains unchanged and reflects the disclosures made at the time the Original Report was made. |
| Document Period End Date | May 27, 2021 |
| Entity File Number | 001-39292 |
| Entity Registrant Name | BUTTERFLY NETWORK, INC. |
| Entity Central Index Key | 0001804176 |
| Entity Tax Identification Number | 84-4618156 |
| Entity Incorporation, State or Country Code | DE |
| Entity Address, Address Line One | 530 Old Whitfield Street |
| Entity Address, City or Town | Guilford |
| Entity Address, State or Province | CT |
| Entity Address, Postal Zip Code | 06437 |
| City Area Code | 203 |
| Local Phone Number | 689-5650 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Entity Emerging Growth Company | true |
| Elected Not To Use the Extended Transition Period | false |
| Common Class A [Member] | |
| Document Information [Line Items] | |
| Title of 12(b) Security | Class A common stock, par value $0.0001 per share |
| Trading Symbol | BFLY |
| Security Exchange Name | NYSE |
| Warrant [Member] | |
| Document Information [Line Items] | |
| Title of 12(b) Security | Warrants to purchase one share of Class A common stock, each at an exercise price of $11.50 per share |
| Trading Symbol | BFLY WS |
| Security Exchange Name | NYSE |
