| Cover | Dec. 14, 2022 |
| Document Type | 8-K |
| Amendment Flag | false |
| Document Period End Date | Dec. 14, 2022 |
| Current Fiscal Year End Date | --12-31 |
| Entity File Number | 001-39876 |
| Entity Registrant Name | Monument Circle Acquisition Corp. |
| Entity Central Index Key | 0001828325 |
| Entity Tax Identification Number | 85-3252655 |
| Entity Incorporation, State or Country Code | DE |
| Entity Address, Address Line One | One EMMIS Plaza |
| Entity Address, Address Line Two | 40 Monument Circle Suite 700 |
| Entity Address, City or Town | Indianapolis |
| Entity Address, State or Province | IN |
| Entity Address, Postal Zip Code | 46204 |
| City Area Code | (317) |
| Local Phone Number | 266-0100 |
| 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 share of Class A common stock, $0.0001 par value, and one-half of one warrant | |
| Title of 12(b) Security | Units, each consisting of one share of Class A common stock, $0.0001 par value, and one-half of one warrant |
| Trading Symbol | MONCU |
| Security Exchange Name | NASDAQ |
| Shares of Class A common stock | |
| Title of 12(b) Security | Shares of Class A common stock |
| Trading Symbol | MON |
| Security Exchange Name | NASDAQ |
| Warrants included as part of the units | |
| Title of 12(b) Security | Warrants included as part of the units |
| Trading Symbol | MONCW |
| Security Exchange Name | NASDAQ |
