| Document and Entity Information | Jan. 04, 2023 |
| Document And Entity Information [Line Items] | |
| Document Type | 8-K |
| Document Period End Date | Jan. 04, 2023 |
| Entity Registrant Name | FORTRESS CAPITAL ACQUISITION CORP. |
| Entity Incorporation, State or Country Code | E9 |
| Entity File Number | 001-39887 |
| Entity Tax Identification Number | 98-1554815 |
| Entity Address, Address Line One | 1345 Avenue of the Americas |
| Entity Address, Address Line Two | 45th Floor |
| Entity Address, City or Town | New York |
| Entity Address, State or Province | NY |
| Entity Address, Postal Zip Code | 10105 |
| City Area Code | 212 |
| Local Phone Number | 798-6100 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Entity Emerging Growth Company | true |
| Entity Ex Transition Period | false |
| Amendment Flag | false |
| Entity Central Index Key | 0001823733 |
| Redeemable Warrants Each Whole Warrant Exercisable For One Class A Ordinary Share At An Exercise Price Of 1150 Per Share [Member] | |
| Document And Entity Information [Line Items] | |
| Title of 12(b) Security | Redeemable warrants, each whole warrant exercisable for one Class A ordinary share at an exercise price of $11.50 per share |
| Security Exchange Name | NONE |
| No Trading Symbol Flag | true |
| Units Each Consisting Of One Class A Ordinary Share And One Fifth Of One Redeemable Warrant [Member] | |
| Document And Entity Information [Line Items] | |
| Title of 12(b) Security | Units, each consisting of one Class A ordinary share and one-fifth of one redeemable warrant |
| Trading Symbol | FCAX.U |
| Security Exchange Name | NYSE |
| Common Class A [Member] | |
| Document And Entity Information [Line Items] | |
| Title of 12(b) Security | Class A ordinary shares, par value $0.0001 per share |
| Trading Symbol | FCAX |
| Security Exchange Name | NYSE |
