| Cover | Feb. 22, 2021 |
| Document Type | 8-K/A |
| Amendment Flag | true |
| Amendment Description | Kismet Acquisition Three Corp. (the “Company”) is filing this Amendment No. 1 to its Current Report on Form 8-K (the “8-K/A”), originally filed with the U.S. Securities and Exchange Commission (the “SEC”) on February 26, 2021 (the “Original 8-K”), to amend and restate the Company’s audited balance sheet as of February 22, 2021 and accompanying footnotes which were filed as an exhibit to the Original 8-K (the “IPO Balance Sheet”). The IPO Balance Sheet is being restated (i) to account for the Company’s outstanding public warrants, private warrants and forward purchase units as derivative assets and derivative liabilities instead of components of equity and (ii) to reclassify all of the Company’s redeemable Class A ordinary shares, par value $0.001 per share (the “Public Shares”) as temporary equity in accordance with Accounting Standards Codification (“ASC”) 480-10-S99. |
| Document Period End Date | Feb. 22, 2021 |
| Entity File Number | 001-40078 |
| Entity Registrant Name | Kismet Acquisition Three Corp. |
| Entity Central Index Key | 0001826059 |
| Entity Tax Identification Number | 00-0000000 |
| Entity Incorporation, State or Country Code | E9 |
| Entity Address, Address Line One | 850 Library Avenue |
| Entity Address, Address Line Two | Suite 204 |
| Entity Address, City or Town | Newark |
| Entity Address, State or Province | DE |
| Entity Address, Postal Zip Code | 19715 |
| City Area Code | 302 |
| Local Phone Number | 738-6680 |
| 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 |
| Units, each consisting of one Class A Ordinary Share and one-third of one Warrant | |
| Title of 12(b) Security | Units, each consisting of one Class A Ordinary Share and one-third of one Warrant |
| Trading Symbol | KIIIU |
| Security Exchange Name | NASDAQ |
| Class A Ordinary Shares, par value $0.001 per share | |
| Title of 12(b) Security | Class A Ordinary Shares, par value $0.001 per share |
| Trading Symbol | KIII |
| Security Exchange Name | NASDAQ |
| Warrants, each whole warrant exercisable for one Class A Ordinary Share at an exercise price of $11.50 | |
| Title of 12(b) Security | Warrants, each whole warrant exercisable for one Class A Ordinary Share at an exercise price of $11.50 |
| Trading Symbol | KIIIW |
| Security Exchange Name | NASDAQ |
