| Cover | Jul. 30, 2024 |
| Document Type | 8-K |
| Amendment Flag | false |
| Document Period End Date | Jul. 30, 2024 |
| Entity File Number | 001-40905 |
| Entity Registrant Name | Tristar Acquisition I Corp. |
| Entity Central Index Key | 0001852736 |
| Entity Tax Identification Number | 98-1587643 |
| Entity Incorporation, State or Country Code | E9 |
| Entity Address, Address Line One | 2 Burlington Woods Drive |
| Entity Address, Address Line Two | Suite 100 |
| Entity Address, City or Town | Burlington |
| Entity Address, State or Province | MA |
| Entity Address, Postal Zip Code | 01803 |
| City Area Code | 781 |
| Local Phone Number | 640-4446 |
| Written Communications | true |
| 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, par value $0.0001 per share, and one-half of one Redeemable Warrant | |
| Title of 12(b) Security | Units, each consisting of one Class A Ordinary Share, par value $0.0001 per share, and one-half of one Redeemable Warrant |
| Trading Symbol | TRIS.U |
| Security Exchange Name | NYSE |
| Class A Ordinary Share, par value $0.0001 per share | |
| Title of 12(b) Security | Class A Ordinary Share, par value $0.0001 per share |
| Trading Symbol | TRIS |
| Security Exchange Name | NYSE |
| Warrant, each whole warrant exercisable for one Class A Ordinary Share for $11.50 per share | |
| Title of 12(b) Security | Warrant, each whole warrant exercisable for one Class A Ordinary Share for $11.50 per share |
| Trading Symbol | TRIS.W |
| Security Exchange Name | NYSE |
