Cover
Cover | Dec. 18, 2020 | Dec. 17, 2020 |
Cover [Abstract] | ||
Document Type | 8-K | |
Document Period End Date | Dec. 18, 2020 | |
Entity Registrant Name | Tredegar Corporation | |
Entity Incorporation, State or Country Code | VA | |
Entity File Number | 1-10258 | |
Entity Tax Identification Number | 54-1497771 | |
Entity Address, Address Line One | 1100 Boulders Parkway | |
Entity Address, City or Town | Richmond, | |
Entity Address, State or Province | VA | |
Entity Address, Postal Zip Code | 23225 | |
City Area Code | (804) | |
Local Phone Number | 330-1000 | |
Written Communications | false | |
Soliciting Material | false | |
Pre-commencement Tender Offer | false | |
Pre-commencement Issuer Tender Offer | false | |
Title of 12(b) Security | Common stock, no par value | |
Trading Symbol | TG | |
Security Exchange Name | NYSE | |
Entity Emerging Growth Company | false | |
Entity Ex Transition Period | false | |
Document Information [Line Items] | ||
Entity Central Index Key | 0000850429 | |
Document Fiscal Year Focus | 2020 | |
Document Fiscal Period Focus | Q3 | |
Amendment Flag | false | |
Document Period End Date | Dec. 18, 2020 | |
Document Period Start Date | Dec. 17, 2020 |