Cover Page |
6 Months Ended |
|---|---|
Jun. 30, 2026 | |
| Document Information [Line Items] | |
| Document Type | S-4/A |
| Amendment Flag | true |
| Amendment Description | The Registrant and Co-Registrant hereby amend this Registration Statement on such date or dates as may be necessary to delay its effective date until the Registrant and Co-Registrant shall file a further amendment which specifically states that this Registration Statement shall thereafter become effective in accordance with Section 8(a) of the Securities Act of 1933, as amended, or until the Registration Statement shall become effective on such date as the Securities and Exchange Commission, acting pursuant to said Section 8(a), may determine. |
| Entity Registrant Name | Kensington Capital Acquisition Corp. VI |
| Entity Central Index Key | 0002102713 |
| Entity Incorporation, State or Country Code | E9 |
| Entity Primary SIC Number | 6770 |
| Entity Address, Address Line One | 1400 Old Country Road, Suite 301 |
| Entity Address, City or Town | Westbury |
| Entity Address, State or Province | NY |
| Entity Address, Postal Zip Code | 11590 |
| City Area Code | 703 |
| Local Phone Number | 674-6514 |
| Entity Filer Category | Non-accelerated Filer |
| Entity Small Business | true |
| Entity Emerging Growth Company | true |
| Entity Ex Transition Period | false |
| Business Contact [Member] | |
| Document Information [Line Items] | |
| Entity Address, Address Line One | 1400 Old Country Road, Suite 301 |
| Entity Address, City or Town | Westbury |
| Entity Address, State or Province | NY |
| Entity Address, Postal Zip Code | 11590 |
| City Area Code | 703 |
| Local Phone Number | 674-6514 |
| Contact Personnel Name | Justin Mirro |