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Consolidated Statements Of Shareholders' Equity (USD $) In Thousands | Common Stock [Member] | Retained Earnings [Member] | Trust For Savings Restoration Plan [Member] | Foreign Currency Translation [Member] | Gain (Loss) On Derivative Financial Instruments [Member] | Pension & Other Post-Retirement Benefit Adjust. [Member] | Total
--- | --- | --- | --- | --- | --- | --- | ---
Balance at Dec. 31, 2012 | $ 15,195 | $ 460,805 | $ (1,401) | $ 131 | $ 993 | $ (103,471) | $ 372,252
Net income |  | 4,277 |  |  |  |  | 4,277
Foreign currency translation adjustment (net of tax benefit of $634) |  |  |  | 865 |  |  | 865
Derivative financial instruments adjustment (net of tax benefit of $299) |  |  |  |  | (518) |  | (518)
Amortization of prior service costs and net gains or losses (net of tax of $1,336) |  |  |  |  |  | 2,313 | 2,313
Cash dividends declared ($.07 per share) |  | (2,263) |  |  |  |  | (2,263)
Stock-based compensation expense | 637 |  |  |  |  |  | 637
Issued upon exercise of stock options (including related income tax benefits of $132) & other | 1,660 |  |  |  |  |  | 1,660
Tredegar common stock purchased by trust for savings restoration plan |  | 3 | (3) |  |  |  |
Balance at Mar. 31, 2013 | $ 17,492 | $ 462,822 | $ (1,404) | $ 996 | $ 475 | $ (101,158) | $ 379,223

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- Definition Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1)(i) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 123R -Paragraph A240 -Subparagraph g(1) -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5047-113901 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 14 -Section F Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 123R -Paragraph 64 -Subparagraph b -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB TOPIC 14.F) -URI http://asc.fasb.org/extlink&oid=6793087&loc=d3e301413-122809 + Details
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