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Selected Quarterly Financial Data (Tables) | 12 Months Ended
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Dec. 31, 2017
Quarterly Financial Information Disclosure [Abstract] |
Schedule Of Selected Quarterly Financial Data | Tredegar Corporation and Subsidiaries (In Thousands, Except Per-Share Amounts) (Unaudited)
| First Quarter |  | Second Quarter |  | Third Quarter |  | Fourth Quarter
For the year ended December 31, 2017 |  |  |  |  |  |  |
Sales | $ | 221,026 |  |  | $ | 247,347 |  |  | $ | 247,121 |  |  | $ | 245,836 |
Gross profit | 30,872 |  |  | 42,063 |  |  | 42,107 |  |  | 36,979 |
Net income (loss) | $ | 3,703 |  |  | $ | 44,204 |  |  | $ | 8,274 |  |  | $ | (17,929 | )
Earnings (loss) per share: |  |  |  |  |  |  |
Basic | $ | 0.11 |  |  | $ | 1.34 |  |  | $ | 0.25 |  |  | $ | (0.54 | )
Diluted | $ | 0.11 |  |  | $ | 1.34 |  |  | $ | 0.25 |  |  | $ | (0.54 | )
Shares used to compute earnings (loss) per share: |  |  |  |  |  |  |
Basic | 32,920 |  |  | 32,961 |  |  | 32,954 |  |  | 32,948 |
Diluted | 32,957 |  |  | 33,051 |  |  | 32,954 |  |  | 32,948 |
For the year ended December 31, 2016 |  |  |  |  |  |  |
Sales | $ | 207,333 |  |  | $ | 208,533 |  |  | $ | 207,702 |  |  | $ | 204,772 |
Gross profit | 37,279 |  |  | 31,637 |  |  | 33,927 |  |  | 27,801 |
Net income | $ | 7,281 |  |  | $ | 3,408 |  |  | $ | 12,048 |  |  | $ | 1,728 |
Earnings per share: |  |  |  |  |  |  |
Basic | $ | 0.22 |  |  | $ | 0.10 |  |  | $ | 0.37 |  |  | $ | 0.05 |
Diluted | $ | 0.22 |  |  | $ | 0.10 |  |  | $ | 0.37 |  |  | $ | 0.05 |
Shares used to compute earnings per share: |  |  |  |  |  |  |
Basic | 32,654 |  |  | 32,716 |  |  | 32,818 |  |  | 32,856 |
Diluted | 32,654 |  |  | 32,716 |  |  | 32,818 |  |  | 32,900 |

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- Definition Tabular disclosure of quarterly financial data. Includes, but is not limited to, financial information for fiscal quarters, cumulative effect of a change in accounting principle and earnings per share data. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a)-(j) -URI http://asc.fasb.org/extlink&oid=84173487&loc=d3e1280-108306 + Details
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