Document and Entity Information |
Apr. 25, 2022 |
|---|---|
| Cover [Abstract] | |
| Amendment Flag | true |
| Entity Central Index Key | 0001708035 |
| Document Type | 8-K/A |
| Document Period End Date | Apr. 25, 2022 |
| Entity Registrant Name | Ecovyst Inc. |
| Entity File Number | 001-38221 |
| Entity Incorporation State Country Code | DE |
| Entity Tax Identification Number | 81-3406833 |
| Entity Address, Address Line One | 300 Lindenwood Drive |
| Entity Address, City or Town | Malvern |
| Entity Address, State or Province | PA |
| Entity Address, Postal Zip Code | 19355 |
| City Area Code | (484) |
| Local Phone Number | 617-1200 |
| Written Communications | false |
| Soliciting Material | false |
| Pre Commencement Tender Offer | false |
| Pre Commencement Issuer Tender Offer | false |
| Security 12b Title | Common stock, par value $0.01 per share |
| Trading Symbol | ECVT |
| Security Exchange Name | NYSE |
| Entity Emerging Growth Company | false |
| Amendment Description | On April 29, 2022, Ecovyst Inc. (the “Company”) filed a Current Report on Form 8-K under Item 5.02 pursuant to which it announced that the Board of Directors (the “Board”) of the Company appointed Bryan K. Brown, Kevin M. Fogarty, and David A. Bradley to the Board. At that time, the Board had not yet appointed Mr. Brown, Mr. Fogarty or Mr. Bradley to any Board committees. This amendment to the Form 8-K filed on April 29, 2022 is being filed to report that on July 27, 2022, the Board appointed Bryan K. Brown as a member of the Audit Committee of the Board, Kevin M. Fogarty as a member of the Nominating and Corporate Governance Committee of the Board and chair of such committee, and David A. Bradley as a member Compensation Committee of the Board and the Health, Safety, Environment and Security Committee of the Board. |