Cover
Cover | Nov. 03, 2020 | May 06, 2020 |
Cover [Abstract] | ||
Entity Incorporation, State or Country Code | DE | |
Document Type | 8-K | |
Document Period End Date | Nov. 3, 2020 | |
Entity Registrant Name | GRAFTECH INTERNATIONAL LTD. | |
Entity File Number | 1-13888 | |
Entity Tax Identification Number | 27-2496053 | |
Entity Address, Address Line One | 982 Keynote Circle | |
Entity Address, City or Town | Brooklyn Heights | |
Entity Address, State or Province | OH | |
Entity Address, Postal Zip Code | 44131 | |
City Area Code | 216 | |
Local Phone Number | 676-2000 | |
Written Communications | false | |
Soliciting Material | false | |
Pre-commencement Tender Offer | false | |
Pre-commencement Issuer Tender Offer | false | |
Title of each class | Common stock, $0.01 par value per share | |
Trading Symbol(s) | EAF | |
Name of each exchange on which registered | NYSE | |
Entity Emerging Growth Company | false | |
Entity Central Index Key | 0000931148 | |
Amendment Flag | false |