| Document and Entity Information | Feb. 17, 2021 |
| Document Information [Line Items] | |
| Document Type | 8-K |
| Document Period End Date | Feb. 17, 2021 |
| Entity Registrant Name | U.S. Well Services, Inc. |
| Entity Incorporation, State or Country Code | DE |
| Entity File Number | 001-38025 |
| Entity Tax Identification Number | 81-1847117 |
| Entity Address, Address Line One | 1360 Post Oak Boulevard |
| Entity Address, Address Line Two | Suite 1800 |
| Entity Address, City or Town | Houston |
| Entity Address, State or Province | TX |
| Entity Address, Postal Zip Code | 77056 |
| City Area Code | 832 |
| Local Phone Number | 562-3730 |
| 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 | 0001670349 |
| Common Class A [Member] | |
| Document Information [Line Items] | |
| Title of each class | Class A Common Stock, $0.0001 par value per share |
| Trading Symbol | USWS |
| Name of each exchange on which registered | NASDAQ |
| Warrants [Member] | |
| Document Information [Line Items] | |
| Title of each class | Warrants |
| Trading Symbol | USWSW |
| Name of each exchange on which registered | NASDAQ |
