| Cover | Jan. 22, 2024 |
| Cover [Abstract] | |
| Document Type | 8-K |
| Amendment Flag | false |
| Document Period End Date | Jan. 22, 2024 |
| Entity File Number | 001-40707 |
| Entity Registrant Name | GLOBAL SYSTEM DYNAMICS, INC. |
| Entity Central Index Key | 0001843248 |
| Entity Tax Identification Number | 86-1458374 |
| Entity Incorporation, State or Country Code | DE |
| Entity Address, Address Line One | 815 Walker Street |
| Entity Address, Address Line Two | Suite 1155 |
| Entity Address, City or Town | Houston |
| Entity Address, State or Province | TX |
| Entity Address, Postal Zip Code | 77002 |
| City Area Code | 740 |
| Local Phone Number | 229-0829 |
| 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 |
