Current report filing

Cover

v3.21.2
Cover
 12 Months Ended
Dec. 31, 2020
Cover [Abstract]  
Document Type 8-K
Document Period End Date Dec. 31, 2020
Amendment Flag false
Entity Registrant Name Ecovyst Inc.
Entity Central Index Key 0001708035
Entity File Number 001-38221
Entity Incorporation, State or 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 610
Local Phone Number 651-4400
Written Communications false
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false
Title of 12(b) Security Common stock, par value $0.01 per share
Trading Symbol ECVT
Security Exchange Name NYSE
Entity Emerging Growth Company false