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Consolidated Statements Of Shareholders' Equity - USD ($) $ in Thousands | Total | Common Stock | Retained Earnings | Trust for Savings Restoration Plan | Foreign Currency Translation | Gain (Loss) on Derivative Financial Instruments | Pension & Other Post-retirement Benefit Adjustment
--- | --- | --- | --- | --- | --- | --- | ---
Beginning Balance at Dec. 31, 2019 | $ 376,749 | $ 45,514 | $ 530,478 | $ (1,592) | $ (100,663) | $ (1,307) | $ (95,681)
Net Income (Loss) Attributable to Parent | (76,339) |  |  |  |  |  |
Foreign currency translation adjustment (net of tax benefit of $294) | (11,076) |  |  |  | (11,076) |  |
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification and Tax | (304) |  |  |  |  | (304) |
Other Comprehensive Income (Loss), before Tax, Portion Attributable to Parent | (2,587) |  |  |  |  |  |
Amortization of prior service costs and net gains or losses (net of tax of $927) | 8,793 |  |  |  |  |  | 8,793
Cash dividends declared ($0.12 per share) | (12,048) |  | (12,048) |  |  |  |
Stock-based compensation expense | 4,120 | 4,120 |  |  |  |  |
Repurchase of employee common stock for tax withholdings | (586) | (586) |  |  |  |  |
Tredegar common stock purchased by trust for savings restoration plan |  |  | 27 | (27) |  |  |
Ending Balance at Sep. 30, 2020 | 289,309 | 49,048 | 442,118 | (1,619) | (111,739) | (1,611) | (86,888)
Beginning Balance at Jun. 30, 2020 | 350,874 | 47,448 | 511,345 | (1,610) | (112,666) | (3,824) | (89,819)
Net Income (Loss) Attributable to Parent | (65,213) |  |  |  |  |  |
Foreign currency translation adjustment (net of tax benefit of $294) | 927 |  |  |  | 927 |  |
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification and Tax | 2,213 |  |  |  |  | 2,213 |
Other Comprehensive Income (Loss), before Tax, Portion Attributable to Parent | 6,071 |  |  |  |  |  |
Amortization of prior service costs and net gains or losses (net of tax of $927) | 2,931 |  |  |  |  |  | 2,931
Cash dividends declared ($0.12 per share) | (4,023) |  | (4,023) |  |  |  |
Stock-based compensation expense | 1,600 | 1,600 |  |  |  |  |
Tredegar common stock purchased by trust for savings restoration plan |  |  | (9) | 9 |  |  |
Ending Balance at Sep. 30, 2020 | 289,309 | 49,048 | 442,118 | (1,619) | (111,739) | (1,611) | (86,888)
Beginning Balance at Dec. 31, 2020 | 109,055 | 50,066 | 239,480 | (2,087) | (84,149) | 2,264 | (96,519)
Net Income (Loss) Attributable to Parent | 36,472 |  |  |  |  |  |
Foreign currency translation adjustment (net of tax benefit of $294) | (1,443) |  |  |  | (1,443) |  |
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification and Tax | 515 |  |  |  |  | 515 |
Other Comprehensive Income (Loss), before Tax, Portion Attributable to Parent | 9,026 |  |  |  |  |  |
Amortization of prior service costs and net gains or losses (net of tax of $927) | 9,954 |  |  |  |  |  | 9,954
Cash dividends declared ($0.12 per share) | (12,114) |  | (12,114) |  |  |  |
Stock-based compensation expense | 2,925 | 2,925 |  |  |  |  |
Issued upon exercise of stock options | 915 |  |  |  |  |  |
Tredegar common stock purchased by trust for savings restoration plan |  |  | (35) | 35 |  |  |
Ending Balance at Sep. 30, 2021 | 146,279 | 53,906 | 263,873 | (2,122) | (85,592) | 2,779 | (86,565)
Beginning Balance at Jun. 30, 2021 | 143,340 | 52,940 | 261,699 | (2,109) | (82,804) | 3,496 | (89,882)
Net Income (Loss) Attributable to Parent | 6,203 |  |  |  |  |  |
Foreign currency translation adjustment (net of tax benefit of $294) | (2,788) |  |  |  | (2,788) |  |
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification and Tax | (717) |  |  |  |  | (717) |
Other Comprehensive Income (Loss), before Tax, Portion Attributable to Parent | (188) |  |  |  |  |  |
Amortization of prior service costs and net gains or losses (net of tax of $927) | 3,317 |  |  |  |  |  | 3,317
Cash dividends declared ($0.12 per share) | (4,042) |  | (4,042) |  |  |  |
Stock-based compensation expense | 966 | 966 |  |  |  |  |
Tredegar common stock purchased by trust for savings restoration plan |  |  | (13) | 13 |  |  |
Ending Balance at Sep. 30, 2021 | $ 146,279 | $ 53,906 | $ 263,873 | $ (2,122) | $ (85,592) | $ 2,779 | $ (86,565)

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