| Cover Page | Jun. 27, 2019 |
| Cover page. | |
| Document Type | 8-K |
| Document Period End Date | Jun. 27, 2019 |
| Entity Registrant Name | U.S. Silica Holdings, Inc. |
| Entity Incorporation, State or Country Code | DE |
| Entity File Number | 001-35416 |
| Entity Tax Identification Number | 26-3718801 |
| Entity Address, Address Line One | 24275 Katy Freeway, Suite 600 |
| Entity Address, City or Town | Katy |
| Entity Address, State or Province | TX |
| Entity Address, Postal Zip Code | 77494 |
| City Area Code | 281 |
| Local Phone Number | 258-2170 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Title of 12(b) Security | Common Stock, $0.01 par value |
| Trading Symbol | SLCA |
| Security Exchange Name | NYSE |
| Entity Emerging Growth Company | false |
| Entity Central Index Key | 0001524741 |
| Amendment Flag | false |
