| Cover | Nov. 10, 2023 |
| Cover [Abstract] | |
| Document Type | 8-K |
| Amendment Flag | false |
| Document Period End Date | Nov. 10, 2023 |
| Entity File Number | 001-36555 |
| Entity Registrant Name | MARATHON DIGITAL HOLDINGS, INC. |
| Entity Central Index Key | 0001507605 |
| Entity Tax Identification Number | 01-0949984 |
| Entity Incorporation, State or Country Code | NV |
| Entity Address, Address Line One | 101 NE 3rd Avenue |
| Entity Address, Address Line Two | Suite 1200 |
| Entity Address, City or Town | Fort Lauderdale |
| Entity Address, State or Province | FL |
| Entity Address, Postal Zip Code | 33301 |
| City Area Code | (800) |
| Local Phone Number | 804-1690 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Title of 12(b) Security | Common Stock |
| Trading Symbol | MARA |
| Security Exchange Name | NASDAQ |
| Entity Emerging Growth Company | false |
