Tredegar (TG) 10-Q 5 Nov 21 2021 Q3 Quarterly report Financial data

Cover

Cover - shares	3 Months Ended	9 Months Ended
	Sep. 30, 2021	Sep. 30, 2021	Oct. 29, 2021
Cover [Abstract]
Document Type		10-Q
Document Quarterly Report	true
Document Period End Date	Sep. 30, 2021
Document Transition Report		false
Entity File Number		1-10258
Entity Registrant Name		Tredegar Corporation
Entity Incorporation, State or Country Code	VA
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
Title of 12(b) Security	Common stock, no par value
Trading Symbol	TG
Security Exchange Name	NYSE
Entity Current Reporting Status		Yes
Entity Interactive Data Current		Yes
Entity Filer Category	Accelerated Filer
Entity Small Business		false
Entity Emerging Growth Company		false
Entity Shell Company		false
Entity Common Stock, Shares Outstanding			33,742,316
Entity Central Index Key		0000850429
Current Fiscal Year End Date		--12-31
Document Fiscal Year Focus		2021
Document Fiscal Period Focus		Q3
Amendment Flag		false

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Current assets:
Cash and cash equivalents	$ 30,253	$ 11,846
Accounts and other receivables, net	97,185	86,327
Income taxes recoverable	2,013	2,807
Inventories	85,686	66,437
Prepaid expenses and other	13,502	19,679
Current assets of discontinued operations	151	1,339
Total current assets	228,790	188,435
Deferred Income Tax Assets, Net	12,101	19,068
Property, plant and equipment, at cost	493,094	475,619
Less accumulated depreciation	(325,141)	(309,074)
Net property, plant and equipment	167,953	166,545
Right-of-use leased assets	14,453	16,037
Investment in kaléo (cost basis of $7,500)	35,479	34,600
Identifiable intangible assets, net	16,608	18,820
Goodwill	67,708	67,708
Other assets	2,591	3,506
Other assets	151	151
Total assets	545,834	514,870
Current liabilities:
Accounts payable	115,879	89,702
Accrued expenses	31,672	40,741
Lease liability, short-term	2,086	2,082
Income taxes payable	56	706
Current liabilities of discontinued operations	370	7,521
Total current liabilities	150,063	140,752
Lease liability, long-term	13,376	14,949
Long-term debt	127,000	134,000
Pension and other postretirement benefit obligations, net	102,970	110,585
Other non-current liabilities	6,146	5,529
Total liabilities	399,555	405,815
Shareholders’ equity:
Common stock, no par value (issued and outstanding 33,727,317 shares at September 30, 2021 and 33,457,176 shares at December 31, 2020)	53,906	50,066
Common stock held in trust for savings restoration plan (107,397 shares at September 30, 2021 and 105,067 shares at December 31, 2020)	(2,122)	(2,087)
Foreign currency translation adjustment	(85,592)	(84,149)
Gain (loss) on derivative financial instruments	2,779	2,264
Pension and other postretirement benefit adjustments	(86,565)	(96,519)
Retained earnings	263,873	239,480
Total shareholders’ equity	146,279	109,055
Total liabilities and shareholders’ equity	$ 545,834	$ 514,870

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Millions	Sep. 30, 2021	Dec. 31, 2020	Dec. 31, 2008
Common stock, shares outstanding	33,727,317	33,457,176
Common stock, shares issued	33,727,317	33,457,176
Common Stock, Shares Held in Employee Trust, Shares	107,397	105,067
kaleo [Member]
Cost Method Investments, Original Cost			$ 7.5

Consolidated Statements Of Inco

Consolidated Statements Of Income - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Revenues and other items:
Gross Sales	$ 209,517	$ 184,370	$ 605,468	$ 562,766
Other income (expense), net	391	(37,934)	9,272	(63,898)
Total revenues, net of other expenses	209,908	146,436	614,740	498,868
Costs and expenses:
Selling, general and administrative	16,767	20,420	55,422	61,654
Research and development	1,613	1,656	4,770	6,063
Amortization of identifiable intangibles	724	753	2,170	2,264
Accrued pension and post-retirement benefits	3,540	3,567	10,622	10,701
Interest expense	842	494	2,555	1,598
Asset impairments and costs associated with exit and disposal activities, net of adjustments	265	3	633	74
Goodwill, Impairment Loss	0	0	0	13,696
Total	201,771	169,354	567,436	530,484
Income (loss) from continuing operations before income taxes	8,137	(22,918)	47,304	(31,616)
Income tax expense (benefit)	1,908	(5,942)	10,728	(8,308)
Net income (loss) from continuing operations	6,229	(16,976)	36,576	(23,308)
Income (loss) from discontinued operations, net of tax	(26)	(48,237)	(104)	(53,031)
Net income (loss)	$ 6,203	$ (65,213)	$ 36,472	$ (76,339)
Basic:
Continuing operations	$ 0.19	$ (0.51)	$ 1.09	$ (0.70)
Discontinued operations	0	(1.44)	0	(1.59)
Earnings Per Share, Basic	0.19	(1.95)	1.09	(2.29)
Diluted:
Continuing operations	0.19	(0.51)	1.09	(0.70)
Discontinued operations (in USD per share)	0	(1.44)	0	(1.59)
Earnings Per Share, Diluted	$ 0.19	$ (1.95)	$ 1.09	$ (2.29)
Shares used to compute earnings (loss) per share:
Basic	33,620	33,439	33,541	33,396
Diluted	33,649	33,439	33,678	33,396
Product [Member]
Costs and expenses:
Cost of Goods and Services Sold	$ 170,756	$ 136,008	$ 470,733	$ 415,212
Shipping and Handling [Member]
Costs and expenses:
Cost of Goods and Services Sold	$ 7,264	$ 6,453	$ 20,531	$ 19,222

Consolidated Statements Of Comp

Consolidated Statements Of Comprehensive Income (Loss) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ 6,203	$ (65,213)	$ 36,472	$ (76,339)
Other comprehensive income (loss):
Unrealized foreign currency translation adjustment (net of tax benefit of $294 in 2021 and net of tax benefit of $19 in 2020)	(2,788)	927	(1,443)	(11,076)
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification and Tax	(717)	2,213	515	(304)
Amortization of prior service costs and net gains or losses (net of tax of $927 in 2021 and net of tax of $836 in 2020)	3,317	2,931	9,954	8,793
Other comprehensive income (loss)	(188)	6,071	9,026	(2,587)
Comprehensive income (loss)	$ 6,015	$ (59,142)	$ 45,498	$ (78,926)

Consolidated Statements Of Co_2

Consolidated Statements Of Comprehensive Income (Loss) (Parenthetical) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Statement of Comprehensive Income [Abstract]
Foreign currency translation adjustment, tax (benefit)	$ (294)	$ (19)	$ (103)	$ (1,125)
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification, Tax	(174)	618	185	(269)
Amortization of prior service costs and net gains or losses, tax	$ 927	$ 836	$ 2,773	$ 2,507

Consolidated Statements Of Cash

Consolidated Statements Of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020
Cash flows from operating activities:
Net income (loss)	$ 36,472	$ (76,339)
Adjustments for noncash items:
Depreciation	16,169	23,218
Amortization of identifiable intangibles	2,170	2,264
Reduction of right-of-use lease asset	1,582	2,102
Goodwill, Impairment Loss	0	13,696
Stock-based compensation expense	3,227	4,120
Deferred income taxes	4,120	(19,492)
Accrued pension and post-retirement benefits	10,622	10,701
(Gain) loss on investment in kaléo accounted for under the fair value method	(879)	61,000
Held for sale impairment loss on divested assets	0	45,054
Changes in assets and liabilities:
Accounts and other receivables	(11,379)	4,961
Inventories	(19,902)	(2,761)
Income taxes recoverable/payable	111	5,332
Prepaid expenses and other	3,422	(5,305)
Accounts payable and accrued expenses	12,078	(2,112)
Lease liability	(1,566)	(2,245)
Pension and postretirement benefit plan contributions	(5,510)	(2,254)
Other, net	750	4,386
Net Cash Provided by (Used in) Operating Activities	51,487	66,326
Cash flows from investing activities:
Capital expenditures	(19,576)	(13,416)
Proceeds from Sale of Other Assets, Investing Activities	4,749	0
Net cash used in investing activities	(14,827)	(13,416)
Cash flows from financing activities:
Borrowings	69,250	25,000
Debt principal payments	(76,250)	(60,000)
Dividends paid	(12,114)	(12,048)
Other	915	(586)
Net cash used in financing activities	(18,199)	(47,634)
Effect of exchange rate changes on cash	(54)	(1,676)
Increase in cash & cash equivalents	18,407	3,600
Cash, cash equivalents, and restricted cash at beginning of period	11,846	31,422
Cash, cash equivalents, and restricted cash at end of period	30,253	35,022
Gain (Loss) on Disposition of Assets	0	(45,054)
Net Income (Loss) Attributable to Parent	36,472	(76,339)
Depreciation	16,169	23,218
Amortization of identifiable intangibles	2,170	2,264
Reduction of right-of-use lease asset	1,582	2,102
Goodwill, Impairment Loss	0	13,696
Deferred income taxes	4,120	(19,492)
Accrued pension and post-retirement benefits	10,622	10,701
Stock-based compensation expense	3,227	4,120
Gain (loss) on investment in kaléo accounted for under fair value method	879	(61,000)
Increase (Decrease) in Accounts and Other Receivables	11,379	(4,961)
Increase (Decrease) in Inventories	19,902	2,761
Income taxes recoverable/payable	111	5,332
Increase (Decrease) in Prepaid Expense and Other Assets	(3,422)	5,305
Accounts payable and accrued expenses	12,078	(2,112)
Operating Leases, Rent Expense	1,566	2,245
Payment for Pension and Other Postretirement Benefits	5,510	2,254
Other, net	750	4,386
Net Cash Provided by (Used in) Operating Activities	51,487	66,326
Payments to Acquire Property, Plant, and Equipment	19,576	13,416
Proceeds from Sale of Other Assets, Investing Activities	4,749	0
Net Cash Provided by (Used in) Investing Activities	(14,827)	(13,416)
Borrowings	69,250	25,000
Repayments of Long-term Lines of Credit	76,250	60,000
Payments of Ordinary Dividends, Common Stock	12,114	12,048
Other	915	(586)
Net Cash Provided by (Used in) Financing Activities	(18,199)	(47,634)
Effect of exchange rate changes on cash	(54)	(1,676)
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect	18,407	3,600
Cash, cash equivalents, and restricted cash at beginning of period	$ 30,253	$ 35,022

Consolidated Statements Of Shar

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)

Consolidated Statements Of Sh_2

Consolidated Statements Of Shareholders' Equity (Parenthetical) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Statement of Stockholders' Equity [Abstract]
Foreign currency translation adjustment, tax (benefit)	$ (294)	$ (19)	$ (103)	$ (1,125)
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification, Tax	(174)	618	185	(269)
Amortization of prior service costs and net gains or losses, tax	$ 927	$ 836	$ 2,773	$ 2,507
Cash dividends declared, per share	$ 0.12	$ 0.12	$ 0.36	$ 0.36

Basis Of Presentation

Basis Of Presentation	9 Months Ended
	Sep. 30, 2021
Basis Of Presentation [Abstract]
Basis Of Presentation	BASIS OF PRESENTATION In the opinion of management, the accompanying condensed consolidated financial statements of Tredegar Corporation and its subsidiaries (“Tredegar,” “the Company,” “we,” “us” or “our”) contain all adjustments necessary to state fairly, in all material respects, Tredegar’s consolidated financial position as of September 30, 2021, the consolidated results of operations for the three and nine months ended September 30, 2021 and 2020, the consolidated cash flows for the nine months ended September 30, 2021 and 2020, and the consolidated changes in shareholders’ equity for the three and nine months ended September 30, 2021 and 2020, in accordance with U.S. generally accepted accounting principles (“GAAP”). All such adjustments, unless otherwise detailed in the notes to the condensed consolidated financial statements, are deemed to be of a normal, recurring nature. The Company operates on a calendar fiscal year except for the Aluminum Extrusions segment, which operates on a 52/53-week fiscal year basis. As such, the fiscal third quarter for 2021 and 2020 for this segment references 13-week periods ended September 25, 2021 and September 27, 2020. The Company does not believe the impact of reporting the results of this segment as stated above is material to the consolidated financial results. The Company may fund or receive cash from the Aluminum Extrusions segment based on Aluminum Extrusion’s cash flows from operations during the intervening period from Aluminum Extrusion’s fiscal quarter end and the Company’s fiscal quarter end. There was no intercompany funding with Aluminum Extrusions between September 25, 2021 and September 30, 2021. As of September 30, 2021 and December 31, 2020, the Company’s cash and cash equivalents declined by $0.5 million and $3.8 million, respectively, since the Company made payments to the Aluminum Extrusions segment to fund its working capital during the intervening period. The financial position data as of December 31, 2020 that is included herein was derived from the audited consolidated financial statements provided in the Company’s Annual Report on Form 10-K for the year ended December 31, 2020 (“2020 Form 10-K”) but does not include all disclosures required by GAAP. These financial statements should be read in conjunction with the consolidated financial statements and related notes included in the 2020 Form 10-K. On October 30, 2020, the Company completed the sale of its personal care films business (“Personal Care Films”), which was part of its PE Films segment. The transaction excluded the packaging film lines and related operations located at the Pottsville, Pennsylvania manufacturing site (“Pottsville Packaging”), which are now being reported within the Surface Protection component of PE Films. All historical results for Personal Care Films have been presented as discontinued operations. On December 31, 2020, the Company completed the sale of Bright View Technologies, which was part of its PE Films segment. The sale did not represent a strategic shift nor did it have a major effect on the Company's historical and ongoing operations, thus all financial information for Bright View Technologies has been presented in continuing operations. The results of operations for the three and nine months ended September 30, 2021, are not necessarily indicative of the results to be expected for the full year. Accounting Standards Adopted: In December 2019, the Financial Accounting Standards Board issued Accounting Standards Update ("ASU") 2019-12, which simplifies the accounting for income taxes by eliminating certain exceptions related to the approach for intraperiod tax allocation, the methodology for calculating income taxes in an interim period, hybrid taxes and the recognition of deferred tax liabilities for outside basis differences. It also clarifies and simplifies other aspects of the accounting for income taxes. In the first quarter of 2021, the Company adopted ASU 2019-12, which did not have a material impact on the Company's consolidated financial statements.

Impairment Goodwill Impairment

Impairment Goodwill Impairment (Notes)	9 Months Ended
	Sep. 30, 2021
Goodwill Impairment Disclosure [Abstract]
Long-Lived Assets & Goodwill Impairment	LONG-LIVED ASSETS & GOODWILL IMPAIRMENT The Company assesses its long-lived assets for impairment when events and circumstances indicate that the carrying amount of the assets may not be recoverable. Long-lived assets consist primarily of buildings, machinery and equipment. During the three months ended September 30, 2021, the Company did not identify any indicators of impairment for long-lived assets. The Company annually assesses goodwill for impairment on December 1st of each year or more frequently when events or circumstances indicate that the carrying amount of a reporting unit that includes goodwill exceeds its fair value. The Company evaluated whether triggering events occurred during the three months ended September 30, 2021 and 2020 for all reporting units that include goodwill and determined no events or circumstances existed that indicated the fair value of the reporting units are below their carrying amounts. During the first three months of 2020, the Company determined that trigger events did occur for the Aluminum Extrusions’ reporting units created as a result of acquisitions in 2012 (“AACOA”) and in 2017 (“Futura”). As a result of the impairment testing performed, the Company recognized a goodwill impairment charge of $13.7 million ($10.5 million after taxes), which represented the entire amount of goodwill associated with the AACOA reporting unit. No impairment was identified for Futura. The Company continues to monitor developments related to the coronavirus ("COVID-19") pandemic and may perform updated event-driven analyses during 2021, as necessary.

Divestitures and Assets Held fo

Divestitures and Assets Held for Sale	9 Months Ended
	Sep. 30, 2021
Discontinued Operations and Disposal Groups [Abstract]
Divestitures and Assets Held for Sale	DIVESTITURES AND ASSETS HELD FOR SALE Divestitures Personal Care Films In 2020, the Company completed the sale of Personal Care Films for an aggregate purchase price of $60.5 million, subject to customary adjustments. The Company agreed to provide certain transition services related to finance, human resources and information technology ("IT") that ended during the second quarter of 2021, resulting in final cash proceeds of $64.1 million. Personal Care Films was previously reported in the PE Films segment. The following table summarizes the financial results of discontinued operations reflected in the consolidated statements of income for the three and nine months ended September 30, 2021 and 2020: Three Months Ended September 30, Nine Months Ended September 30, (In thousands) 2021 2020 2021 2020 Revenues and other items: Sales $ — $ 29,509 $ — $ 98,053 Other income (expense), net — (37) — (298) — 29,472 — 97,755 Costs and expenses: Cost of goods sold — 25,481 — 83,408 Freight — 1,436 — 4,711 Selling, general and administrative 33 6,502 1,251 13,649 Research and development — 3,138 — 8,451 Asset impairments and costs associated with exit and disposal activities, net of adjustments — 801 — 1,327 Adjustment to the fair value estimates used in the disposal of Personal Care Films (a) — — (1,118) — Held for sale impairment loss on divested assets — 45,054 — 45,054 Total 33 82,412 133 156,600 Income (loss) from discontinued operations before income taxes (33) (52,940) (133) (58,845) Income tax expense (benefit) (7) (4,703) (29) (5,814) Income (loss) from discontinued operations, net of tax $ (26) $ (48,237) $ (104) $ (53,031) (a) Represents a net increase to the estimated fair value of Personal Care Films primarily due to lower costs associated with IT transition-related services to provide the seller developed assets, which did not exist at the time of the sale, to support the seller's IT infrastructure. The assets and liabilities of the discontinued operations reflected in the consolidated balance sheets as of September 30, 2021 and December 31, 2020, respectively, were as follows: September 30, December 31, (In thousands) 2021 2020 Assets Prepaid expenses and other (a) $ 151 $ 1,339 Other non-current assets 151 151 Total assets of discontinued operations $ 302 $ 1,490 Liabilities Accrued expenses (a) $ 370 $ 7,521 (a) The consolidated balance sheet of discontinued operations as of September 30, 2021 includes $0.2 million of other receivables related to the settlement of customary post-closing adjustments, accrued severance of $0.3 million, and other miscellaneous accrued expenses of $0.1 million. The consolidated balance sheet of discontinued operations as of December 31, 2020 includes $0.4 million of other receivables related to the settlement of customary post-closing adjustments, deferred assets of $0.9 million and deferred obligations of $5.3 million related to transition services, accrued severance of $2.1 million, and other miscellaneous accrued expenses of $0.2 million. The following table provides significant operating and investing cash flow information for discontinued operations: Nine Months Ended September 30, (In thousands) 2021 2020 Operating activities Depreciation and amortization $ — $ 6,625 Held for sale impairment loss on divested assets — 45,054 Other (1,118) — Total (1,118) 51,679 Investing activities Capital expenditures $ — $ 2,989 Assets Held For Sale In July 2019, the Company committed to a plan to close its manufacturing facility in Lake Zurich, Illinois, which historically was reported by the Company within the Personal Care Films component of its PE Films segment. During the third quarter of 2020, the disposal group carrying value of $4.6 million was reported in "Prepaid expenses and other" in the consolidated balance sheet as the held for sale criteria was met. During the third quarter of 2021, the Company completed the sale of the remaining assets in Lake Zurich, Illinois resulting in total cash proceeds of $4.7 million.

Inventories

Inventories	9 Months Ended
	Sep. 30, 2021
Inventory, Net [Abstract]
Inventories	INVENTORIES The components of inventories are as follows: (In thousands) September 30, 2021 December 31, 2020 Finished goods $ 21,614 $ 15,251 Work-in-process 12,586 9,098 Raw materials 32,836 25,913 Stores, supplies and other 18,650 16,175 Total $ 85,686 $ 66,437

Earnings Per Share

Earnings Per Share	9 Months Ended
	Sep. 30, 2021
Earnings Per Share [Abstract]
Earnings Per Share	EARNINGS PER SHARE Basic earnings per share is computed by dividing net income (loss) from continuing and discontinued operations by the weighted average number of shares of common stock outstanding. Diluted earnings per share is computed by dividing net income (loss) from continuing and discontinued operations by the weighted average common and potentially dilutive common equivalent shares outstanding, determined as follows: Three Months Ended Nine Months Ended September 30, September 30, (In thousands) 2021 2020 2021 2020 Weighted average shares outstanding used to compute basic earnings per share 33,620 33,439 33,541 33,396 Incremental dilutive shares attributable to stock options and restricted stock 29 — 137 — Shares used to compute diluted earnings per share 33,649 33,439 33,678 33,396 Incremental shares attributable to stock options and restricted stock are computed under the treasury stock method using the average market price during the related period. The average out-of-the-money options to purchase shares that were excluded from the calculation of incremental shares attributable to stock options and restricted stock were 2,433,213 and 1,280,376, respectively, for the three and nine months ended September 30, 2021. The Company had a net loss from continuing operations for the three and nine months ended September 30, 2020, so there was no dilutive impact for such shares. If the Company had reported net income from continuing operations for the three and nine months ended September 30, 2020, average out-of-the-money options to purchase shares that were excluded from the calculation of incremental shares attributable to stock options and restricted stock were 1,509,429 and 1,253,278, respectively.

Accumulated Other Comprehensive

Accumulated Other Comprehensive Income (Loss)	9 Months Ended
	Sep. 30, 2020
Other Comprehensive Income (Loss), Net of Tax [Abstract]
Comprehensive Income (Loss) Note [Text Block]	ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) Reclassifications of balances out of accumulated other comprehensive income (loss) into net income (loss) for the three months ended September 30, 2021 are summarized as follows: (In thousands) Amount reclassified from accumulated other comprehensive income (loss) Location of gain (loss) reclassified from accumulated other comprehensive income (loss) to net income (loss) Gain (loss) on derivative financial instruments: Aluminum future contracts, before taxes $ 2,160 Cost of goods sold Foreign currency forward contracts, before taxes (34) Selling, general & administrative Foreign currency forward contracts, before taxes 15 Cost of goods sold Total, before taxes 2,141 Income tax expense (benefit) 476 Income tax expense (benefit) Total, net of tax $ 1,665 Amortization of pension and other post-retirement benefits: Actuarial gain (loss) and prior service costs, before taxes $ (4,244) (a) Income tax expense (benefit) (927) Income tax expense (benefit) Total, net of tax $ (3,317) (a) This component of accumulated other comprehensive income (loss) is included in the computation of net periodic pension cost (see Note 9 for additional detail). Reclassifications of balances out of accumulated other comprehensive income (loss) into net income (loss) for the nine months ended September 30, 2021 are summarized as follows: (In thousands) Amount reclassified from accumulated other comprehensive income (loss) Location of gain (loss) reclassified from accumulated other comprehensive income (loss) to net income (loss) Gain (loss) on derivative financial instruments: Aluminum future contracts, before taxes $ 4,172 Cost of goods sold Foreign currency forward contracts, before taxes (183) Selling, general & administrative Foreign currency forward contracts, before taxes 48 Cost of goods sold Total, before taxes 4,037 Income tax expense (benefit) 880 Income tax expense (benefit) Total, net of tax $ 3,157 Amortization of pension and other post-retirement benefits: Actuarial gain (loss) and prior service costs, before taxes $ (12,727) (a) Income tax expense (benefit) (2,773) Income tax expense (benefit) Total, net of tax $ (9,954) (a) This component of accumulated other comprehensive income (loss) is included in the computation of net periodic pension cost (see Note 9 for additional detail). Reclassifications of balances out of accumulated other comprehensive income (loss) into net income for the three months ended September 30, 2020 are summarized as follows: (In thousands) Amount reclassified from accumulated other comprehensive income (loss) Location of gain (loss) reclassified from accumulated other comprehensive income (loss) to net income (loss) Gain (loss) on derivative financial instruments: Aluminum future contracts, before taxes $ (575) Cost of goods sold Foreign currency forward contracts, before taxes (1,767) Selling, general & administrative Foreign currency forward contracts, before taxes 15 Cost of goods sold Total, before taxes (2,327) Income tax expense (benefit) (496) Income tax expense (benefit) Total, net of tax $ (1,831) Amortization of pension and other post-retirement benefits: Actuarial gain (loss) and prior service costs, before taxes $ (3,767) (a) Income tax expense (benefit) (836) Income tax expense (benefit) Total, net of tax $ (2,931) (a) This component of accumulated other comprehensive income (loss) is included in the computation of net periodic pension cost (see Note 9 for additional detail). Reclassifications of balances out of accumulated other comprehensive income (loss) into net income for the nine months ended September 30, 2020 are summarized as follows: (In thousands) Amount reclassified from accumulated other comprehensive income (loss) Location of gain (loss) reclassified from accumulated other comprehensive income (loss) to net income (loss) Gain (loss) on derivative financial instruments: Aluminum future contracts, before taxes $ (2,766) Cost of goods sold Foreign currency forward contracts, before taxes (4,359) Selling, general & administrative Foreign currency forward contracts, before taxes 46 Cost of goods sold Total, before taxes (7,079) Income tax expense (benefit) (1,523) Income tax expense (benefit) Total, net of tax $ (5,556) Amortization of pension and other post-retirement benefits: Actuarial gain (loss) and prior service costs, before taxes $ (11,300) (a) Income tax expense (benefit) (2,507) Income tax expense (benefit) Total, net of tax $ (8,793) (a) This component of accumulated other comprehensive income (loss) is included in the computation of net periodic pension cost (see Note 9 for additional detail).

Investments

Investments	9 Months Ended
	Sep. 30, 2021
Investments, Debt and Equity Securities [Abstract]
Investments and Other Noncurrent Assets	INVESTMENTS The Company's aggregate investment of $7.5 million, for an approximate 18% ownership interest, in kaleo, Inc. (“kaléo”), a privately held specialty pharmaceutical company dedicated to building innovative solutions for serious and life-threatening medical conditions, is accounted for under the fair value method in the condensed consolidated financial statements. The estimated fair value of the Company’s investment was $35.5 million as of September 30, 2021 and $34.6 million as of December 31, 2020. kaléo’s stock is not publicly traded. The ultimate value of the Company’s ownership interest in kaléo could be materially different from the estimated fair value and will ultimately be determined and realized only if and when a liquidity event occurs. Amounts recognized associated with the Company’s investment in kaléo are included in “Other income (expense), net” in the consolidated statements of income and separately stated in the net sales and earnings before interest, taxes, depreciation and amortization ("EBITDA") from ongoing operations by segment table in Note 11. The Company estimated the fair value of its investment in kaléo at September 30, 2021 by: (i) computing the weighted average estimated enterprise value (“EV”) utilizing both the discounted cash flow method (the “DCF Method”) and the application of a market multiple to EBITDA (the “EBITDA Multiple Method”), (ii) applying adjustments for any surplus or deficient working capital and estimates of contingent liabilities, (iii) adding cash and cash equivalents, (iv) subtracting interest-bearing debt, (v) subtracting a private company liquidity discount estimated at approximately 20% at September 30, 2021 (consistent with 20% at both December 31, 2020 and September 30, 2020) of the net result of (i) through (iv), and (vi) applying liquidation preferences and fully diluted ownership percentages to the estimated equity value computed in (i) through (v). The Company’s estimate of kaléo’s EV as of September 30, 2021 and December 31, 2020 was determined by weighting the EBITDA Multiple Method by 20% and the DCF Method by 80%. A heavier weighting towards the DCF Method was used since kaléo’s projections better reflect ongoing pricing pressures and expected changes in market access. The DCF Method projections rely on numerous assumptions and Level 3 inputs. In addition, there are various regulatory and legal enforcement efforts, including an ongoing Department of Justice investigation related to kaléo’s discontinued Evzio business, which could have a material adverse effect on kaléo’s business that require assessment in any valuation method applied.

Derivative Financial Instrument

Derivative Financial Instruments	9 Months Ended
	Sep. 30, 2021
Summary of Derivative Instruments [Abstract]
Derivative Financial Instruments	DERIVATIVES Tredegar uses derivative financial instruments for the purpose of hedging margin exposure from fixed-price forward sales contracts in Aluminum Extrusions and exposure from currency volatility that exists as part of ongoing business operations in Flexible Packaging Films. These derivative financial instruments are designated as and qualify as cash flow hedges and are recognized in the consolidated balance sheet at fair value. The fair value of derivative instruments is recorded on the consolidated balance sheets. If individual derivative instruments with the same counterparty can be settled on a net basis, the Company records the corresponding derivative fair values as a net asset or net liability. In the normal course of business, Aluminum Extrusions enters into fixed-price forward sales contracts with certain customers for the future sale of fixed quantities of aluminum extrusions at scheduled intervals. In order to hedge margin exposure created from the fixing of future sales prices relative to volatile raw material (aluminum) costs, Aluminum Extrusions enters into a combination of forward purchase commitments and futures contracts to acquire or hedge aluminum, based on the scheduled purchases for the firm sales commitments. The fixed-price firm sales commitments and related hedging instruments generally have durations of not more than 12 months. The notional amount of aluminum futures contracts that hedged future purchases of aluminum to meet fixed-price forward sales contract obligations was $18.7 million (13.9 million pounds of aluminum) at September 30, 2021 and $12.1 million (13.0 million pounds of aluminum) at December 31, 2020. The table below summarizes the location and gross amounts of aluminum futures contract fair values (Level 2) in the consolidated balance sheets as of September 30, 2021 and December 31, 2020: September 30, 2021 December 31, 2020 (In thousands) Balance Sheet Fair Balance Sheet Fair Derivatives Designated as Hedging Instruments Asset derivatives: Aluminum futures contracts Prepaid expenses and other $ 3,996 Prepaid expenses and other $ 1,560 Liability derivatives: Aluminum futures contracts Accrued expenses (1) Accrued expenses (22) Net asset $ 3,995 $ 1,538 In the event that a counterparty to an aluminum fixed-price forward sales contract chooses not to take delivery of its aluminum extrusions, the customer is contractually obligated to compensate Aluminum Extrusions for any losses on the related aluminum futures and/or forward contracts through the date of cancellation. The Company's earnings are exposed to foreign currency exchange risk primarily through the translation of the financial statements of subsidiaries that have a functional currency other than the U.S. Dollar. The Company estimates that the net mismatch translation exposure for the Flexible Packaging Film's business unit in Brazil (“Terphane Ltda.”) of its sales and raw materials quoted or priced in U.S. Dollars and its variable conversion, fixed conversion and sales, general and administrative costs (before depreciation and amortization) quoted or priced in Brazilian Real ("R$") is annual net costs of R$150 million. Terphane Ltda. has the following outstanding foreign exchange average forward rate contracts to purchase Brazilian Real and sell U.S. Dollars: USD Notional Amount (000s) Average Forward Rate Contracted on USD/BRL R$ Equivalent Amount (000s) Applicable Month Estimated % of Terphane Ltda. R$ Operating Cost Exposure Hedged $1,400 5.5100 R$7,714 Oct-21 78% $1,495 5.5224 R$8,256 Nov-21 83% $1,170 5.5060 R$6,442 Dec-21 65% $1,677 5.3360 R$8,948 Jan-22 72% $1,751 5.3631 R$9,391 Feb-22 75% $1,662 5.3905 R$8,959 Mar-22 72% $1,615 5.4247 R$8,761 Apr-22 70% $1,647 5.4545 R$8,984 May-22 72% $1,596 5.4890 R$8,760 Jun-22 70% $1,719 5.5200 R$9,489 Jul-22 76% $1,708 5.5560 R$9,489 Aug-22 76% $1,780 5.5915 R$9,953 Sep-22 80% $1,793 5.6264 R$10,088 Oct-22 81% $1,784 5.6597 R$10,097 Nov-22 81% $1,659 5.6962 R$9,450 Dec-22 76% $24,456 5.5112 R$134,781 75% These foreign currency exchange contracts have been designated and qualify as cash flow hedges of Terphane Ltda.’s forecasted sales to customers quoted or priced in U.S. Dollars over that period. By changing the currency risk associated with these U.S. Dollar sales, the derivatives have the effect of offsetting operating costs quoted or priced in Brazilian Real and decreasing the net exposure to Brazilian Real in the consolidated statements of income. Pre-tax accumulated gains of $0.9 million related to the net fair value of the open forward contracts is reported in accumulated other comprehensive income (loss) as of September 30, 2021. The table below summarizes the location and gross amounts of foreign currency forward contract fair values (Level 2) in the consolidated balance sheets as of September 30, 2021 and December 31, 2020: September 30, 2021 December 31, 2020 (In thousands) Balance Sheet Fair Balance Sheet Fair Derivatives Designated as Hedging Instruments Asset derivatives: Foreign currency forward contracts Prepaid expenses and other $ 99 Prepaid expenses and other $ 853 Liability derivatives: Foreign currency forward contracts Accrued expenses (891) Accrued expenses (466) Net asset (liability) $ (792) $ 387 These derivative contracts involve elements of market risk that are not reflected on the consolidated balance sheet, including the risk of dealing with counterparties and their ability to meet the terms of the contracts. The counterparties to any forward purchase commitments are major aluminum brokers and suppliers, and the counterparties to any aluminum futures contracts are major financial institutions. Fixed-price forward sales contracts are only made available to the best and most credit-worthy customers. The counterparties to the Company’s foreign currency cash flow hedge contracts are major financial institutions. The pretax effect on net income (loss) and other comprehensive income (loss) of derivative instruments classified as cash flow hedges and described in the previous paragraphs for the three and nine month periods ended September 30, 2021 and 2020 is summarized in the table below: Cash Flow Derivative Hedges Three Months Ended September 30, Aluminum Futures Contracts Foreign Currency Forwards (In thousands) 2021 2020 2021 2020 Amount of pretax gain (loss) recognized in other comprehensive income (loss) $ 2,919 $ 1,158 $ — $ (1,670) $ — $ (655) Location of gain (loss) reclassified from accumulated other comprehensive income (loss) into net income (effective portion) Cost of goods sold Cost of goods sold Cost of goods sold Selling, general & admin Cost of goods sold Selling, general & admin Amount of pretax gain (loss) reclassified from accumulated other comprehensive income (loss) to net income (effective portion) $ 2,160 $ (575) $ 15 $ (34) $ 15 $ (1,767) Nine Months Ended September 30, Aluminum Futures Contracts Foreign Currency Forwards 2021 2020 2021 2020 Amount of pre-tax gain (loss) recognized in other comprehensive income (loss) $ 6,629 $ (1,637) $ — $ (1,892) $ — $ (6,015) Location of gain (loss) reclassified from accumulated other comprehensive income (loss) into net income (effective portion) Cost of goods sold Cost of goods sold Cost of goods sold Selling, general & admin Cost of goods sold Selling, general & admin Amount of pre-tax gain (loss) reclassified from accumulated other comprehensive income (loss) to net income (effective portion) $ 4,172 $ (2,766) $ 48 $ (183) $ 46 $ (4,359)

Pension And Other Post-Retireme

Pension And Other Post-Retirement Benefits	9 Months Ended
	Sep. 30, 2021
Retirement Benefits [Abstract]
Pension And Other Post-Retirement Benefits	PENSION AND OTHER POSTRETIREMENT BENEFITS Tredegar sponsors a noncontributory defined benefit (pension) plan covering certain current and former U.S. employees. As of January 31, 2018, the plan no longer accrued benefits associated with crediting employees for service, thereby freezing all future benefits under the plan. The components of net periodic benefit cost for the pension and other postretirement benefit programs reflected in the consolidated statements of income for the three and nine months ended September 30, 2021 and 2020, are shown below: Pension Benefits Other Post-Retirement Benefits Three Months Ended September 30, Three Months Ended September 30, (In thousands) 2021 2020 2021 2020 Service cost $ — $ — $ 9 $ 9 Interest cost 2,101 2,535 50 60 Expected return on plan assets (2,862) (2,804) — — Amortization of prior service costs, (gains) losses and net transition asset 4,268 3,814 (24) (47) Net periodic benefit cost $ 3,507 $ 3,545 $ 35 $ 22 Pension Benefits Other Post-Retirement Benefits Nine Months Ended September 30, Nine Months Ended September 30, (In thousands) 2021 2020 2021 2020 Service cost $ — $ — $ 26 $ 28 Interest cost 6,305 7,605 151 180 Expected return on plan assets (8,587) (8,412) — — Amortization of prior service costs, (gains) losses and net transition asset 12,799 11,441 (72) (141) Net periodic benefit cost $ 10,517 $ 10,634 $ 105 $ 67 Pension and other postretirement liabilities were $103.7 million and $111.3 million at September 30, 2021 and December 31, 2020, respectively ($0.7 million included in “Accrued expenses” at September 30, 2021 and December 31, 2020, with the remainder included in “Pension and other postretirement benefit obligations, net” in the consolidated balance sheets). As of December 31, 2020, the required minimum pension contributions were $11.7 million for 2021. Contributions to the pension plan during the first nine months of 2021 were $5.1 million. In addition, the United States government enacted the American Rescue Plan Act of 2021 in March 2021, which, among other impacts, has reduced the Company's 2021 required minimum pension contributions to zero as a result of the Company's election of the interest rate relief used in the present value of the pension obligation and extension of the shortfall amortization period that is used to determine the minimum pension funding requirements. Tredegar funds its other postretirement benefits on a claims-made basis; for 2021, the Company anticipates the amount will be consistent with amounts paid for the year ended December 31, 2020, or approximately $0.5 million.

Other Income (Expense), Net (No

Other Income (Expense), Net (Notes)	9 Months Ended
	Sep. 30, 2021
Other Income and Expenses [Abstract]
Other Income and Other Expense Disclosure [Text Block]	OTHER INCOME (EXPENSE), NET Other income (expense), net consists of the following: Three Months Ended September 30, Nine Months Ended September 30, (In thousands) 2021 2020 2021 2020 Gain (loss) on investment in kaléo accounted for under fair value method (a) $ 279 $ (36,200) $ 1,197 $ (61,000) One-time tax credit in Brazil for unemployment/social security insurance non-income taxes resulting from a favorable decision by Brazil’s Supreme Court regarding the calculation of such tax (b) — — 8,486 — Transition service fees, net of corporate costs associated with the divested Personal Care business (85) (1,130) 486 (1,130) COVID-19-related expenses, net of relief (c) (159) (494) (594) (1,594) Write-down of investment in Harbinger Capital Partners Special Situations Fund (d) (6) (115) (517) (296) Gain associated with the sale of Lake Zurich manufacturing facility assets 377 — 377 — Other (15) 5 (163) 122 Total $ 391 $ (37,934) $ 9,272 $ (63,898) (a) The gain in the first nine months of 2021 includes a $0.3 million dividend received from kaléo in the first quarter of 2021. (b) See Note 13 for additional information. (c) Costs associated with operating under COVID-19 conditions include employee overtime expenses associated with absenteeism, personal protective equipment supplies and facility maintenance. (d) Represents the unrealized loss on the Company’s investment in Harbinger Capital Partners Special Situations Fund L.P. that had a fair value of $0.2 million and $0.8 million as of September 30, 2021 and 2020, respectively, and $0.7 million as of December 31, 2020 reported in "Other assets" in the condensed consolidated balance sheet.

Segment Reporting

Segment Reporting	9 Months Ended
	Sep. 30, 2021
Segment Reporting [Abstract]
Segment Reporting	BUSINESS SEGMENTS The Company’s business segments are Aluminum Extrusions, PE Films, and Flexible Packaging Films. Information by business segment is reported below. There are no accounting transactions between segments and no allocations to segments. All historical results for Personal Care Films have been presented as discontinued operations. The Surface Protection component of the PE Films segment now includes Pottsville Packaging. The Company’s reportable segments are based on its method of internal reporting, which is generally segregated by differences in products. Accounting standards for presentation of segments require an approach based on the way the Company organizes the segments for making operating decisions and how the chief operating decision maker (“CODM”) assesses performance. EBITDA from ongoing operations is the key profitability measure used by the CODM (Tredegar’s President and Chief Executive Officer) for purposes of assessing financial performance. The Company uses sales less freight (“net sales”) from continuing operations as its measure of revenues from external customers at the segment level. This measure is separately included in the financial information regularly provided to the CODM. The following table presents net sales and EBITDA from ongoing operations by segment for the three and nine months ended September 30, 2021 and 2020: Three Months Ended September 30, Nine Months Ended September 30, (In thousands) 2021 2020 2021 2020 Net Sales Aluminum Extrusions $ 137,086 $ 115,621 $ 394,492 $ 339,566 PE Films 28,501 26,440 87,885 103,444 Flexible Packaging Films 36,666 35,856 102,560 100,534 Total net sales 202,253 177,917 584,937 543,544 Add back freight 7,264 6,453 20,531 19,222 Sales as shown in the consolidated statements of income $ 209,517 $ 184,370 $ 605,468 $ 562,766 EBITDA from Ongoing Operations Aluminum Extrusions: Ongoing operations: EBITDA $ 12,038 $ 16,540 $ 45,062 $ 41,496 Depreciation & amortization (3,900) (4,251) (12,062) (12,632) EBIT 8,138 12,289 33,000 28,864 Plant shutdowns, asset impairments, restructurings and other (160) (720) (223) (2,637) Goodwill impairment — — — (13,696) PE Films: Ongoing operations: EBITDA 4,821 6,041 21,035 33,928 Depreciation & amortization (1,591) (1,785) (4,681) (4,868) EBIT 3,230 4,256 16,354 29,060 Plant shutdowns, asset impairments, restructurings and other (182) (56) (457) (225) Flexible Packaging Films: Ongoing operations: EBITDA 7,396 9,546 25,296 22,594 Depreciation & amortization (493) (443) (1,466) (1,306) EBIT 6,903 9,103 23,830 21,288 Plant shutdowns, asset impairments, restructurings and other (7) (3) 8,407 (14) Total 17,922 24,869 80,911 62,640 Interest income 8 11 40 43 Interest expense 842 494 2,555 1,598 Gain (loss) on investment in kaléo accounted for under fair value method 279 (36,200) 1,197 (61,000) Stock option-based compensation costs 675 518 1,819 1,786 Corporate expenses, net 8,555 10,586 30,470 29,915 Income (loss) from continuing operations before income taxes 8,137 (22,918) 47,304 (31,616) Income tax expense (benefit) 1,908 (5,942) 10,728 (8,308) Income (loss) from continuing operations 6,229 (16,976) 36,576 (23,308) Income (loss) from discontinued operations, net of tax (26) (48,237) (104) (53,031) Net income (loss) $ 6,203 $ (65,213) $ 36,472 $ (76,339) The following table presents identifiable assets by segment at September 30, 2021 and December 31, 2020: (In thousands) September 30, 2021 December 31, 2020 Aluminum Extrusions $ 274,183 $ 244,560 PE Films 111,690 119,013 Flexible Packaging Films 72,626 66,453 Subtotal 458,499 430,026 General corporate 56,780 71,508 Cash and cash equivalents 30,253 11,846 Discontinued operations 302 1,490 Total $ 545,834 $ 514,870 The following tables disaggregate the Company’s revenue by geographic area and product group for the three and nine months ended September 30, 2021 and 2020: Net Sales by Geographic Area (a) Three Months Ended September 30, Nine Months Ended September 30, (In thousands) 2021 2020 2021 2020 United States $ 157,969 $ 129,654 $ 447,585 $ 395,207 Exports from the United States to: Asia 12,609 14,255 43,129 59,816 Latin America 1,170 465 3,630 1,953 Canada 4,107 7,200 14,145 13,359 Europe 1,343 1,468 3,323 4,272 Operations outside the United States: Brazil 25,055 24,875 73,125 68,937 Total $ 202,253 $ 177,917 $ 584,937 $ 543,544 (a) Export sales relate entirely to PE Films. Operations in Brazil are related to Flexible Packaging Films. The Company’s facilities in Pottsville, PA (“PV”) and Guangzhou, China (“GZ”) have a tolling arrangement whereby certain surface protection films are manufactured in GZ for a fee with raw materials supplied from PV that are then shipped by GZ directly to customers principally in the Asian market, but paid by customers directly to PV. Amounts associated with this intercompany tolling arrangement are reported in the table above as export sales from the U.S. to Asia, and include net sales of $7.4 million and $5.9 million in the third quarters of 2021 and 2020, respectively, and $25.0 million and $25.1 million in the first nine months of 2021 and 2020, respectively. Net Sales by Product Group Three Months Ended September 30, Nine Months Ended September 30, (In thousands) 2021 2020 2021 2020 Aluminum Extrusions: Nonresidential building & construction $ 68,590 $ 62,611 $ 195,941 $ 190,476 Consumer durables 12,873 11,160 39,611 31,491 Automotive 10,150 10,332 32,750 25,375 Residential building & construction 13,154 10,149 39,755 29,016 Electrical 8,015 5,992 24,767 18,006 Machinery & equipment 11,611 7,581 31,190 23,147 Distribution 12,693 7,796 30,478 22,055 Subtotal 137,086 115,621 394,492 339,566 PE Films: Surface protection films 20,905 19,868 65,997 79,919 Packaging 7,596 5,042 21,888 17,262 LED lighting products — 1,530 — 6,263 Subtotal 28,501 26,440 87,885 103,444 Flexible Packaging Films 36,666 35,856 102,560 100,534 Total $ 202,253 $ 177,917 $ 584,937 $ 543,544

Income Taxes

Income Taxes	9 Months Ended
	Sep. 30, 2021
Income Tax Disclosure [Abstract]
Income Taxes	INCOME TAXES Tredegar recorded tax expense of $10.7 million pretax income from continuing operations of $47.3 million in the first nine months of 2021. Therefore, the effective tax rate in the first nine months of 2021 was 22.7%, compared to 26.2% in the first nine months of 2020. The quarterly effective tax rate is an estimate based on a proration of the components of the Company’s estimated annual effective tax rate and discrete items recorded during the first nine months of the year. The significant differences between the U.S. federal statutory rate and the effective income tax rate for the nine months ended September 30, 2021 and 2020 are as follows: (In thousands, except percentages) 2021 2020 Nine Months Ended September 30, Amount % Amount % Income tax (benefit) expense at federal statutory rate $ 9,934 21.0 % $ (6,639) 21.0 % Foreign rate differences 4,787 10.1 % 2,772 (8.8) % U.S. Tax on Foreign Branch Income 4,124 8.7 % 656 (2.1) % State taxes, net of federal income tax benefit 829 1.8 % (537) 1.7 % Stock-based compensation 616 1.3 % 240 (0.8) % Non-deductible expenses 544 1.2 % 312 (1.0) % Valuation allowance for capital loss carry-forwards 74 0.2 % 61 (0.2) % Unremitted earnings from foreign operations 117 0.2 % — — % Tax contingency accruals and tax settlements — — % (148) 0.5 % Tax impact of dividend received (33) (0.1) % — — % Changes in estimates related to prior year tax provision (501) (1.1) % (1,001) 3.2 % Research and development tax credit (925) (2.0) % (612) 1.9 % Foreign tax incentives (8,838) (18.7) % (3,412) 10.8 % Income tax expense (benefit) at effective income tax rate $ 10,728 22.7 % $ (8,308) 26.2 % Tredegar accrues U.S. federal income taxes on unremitted earnings of foreign subsidiaries where required. However, due to changes in the taxation of dividends under the U.S. Tax Cuts and Jobs Act of 2017, Tredegar will only record U.S. federal income taxes on unremitted earnings of its foreign subsidiaries where Tredegar cannot take steps to eliminate any potential tax on future distributions from its foreign subsidiaries. The Brazilian federal statutory income tax rate is a composite of 34.0% (25.0% of income tax and 9.0% of social contribution on income). Terphane Ltda.’s manufacturing facility in Brazil is the beneficiary of certain income tax incentives that allow for a reduction in the statutory Brazilian federal income tax rate to 15.25% levied on the operating profit on certain of its products. The incentives have been granted for a 13-year period, from the commencement date of January 1, 2015. The benefit from the tax incentives was $8.8 million and $3.4 million in the first nine months of 2021 and 2020, respectively. Tredegar and its subsidiaries file income tax returns in the U.S., various states, and jurisdictions outside the U.S. With exceptions for some U.S. states and non-U.S. jurisdictions, Tredegar and its subsidiaries are no longer subject to U.S. federal, state or non-U.S. income tax examinations by tax authorities for years before 2018.

Accounts and Other Receivables

Accounts and Other Receivables	9 Months Ended
	Sep. 30, 2021
Receivables [Abstract]
Accounts and Other Receivables	ACCOUNTS AND OTHER RECEIVABLES As of September 30, 2021 and December 31, 2020, accounts receivable and other receivables include the following: September 30, December 31, (In thousands) 2021 2020 Customer receivables $ 95,773 $ 85,274 Other receivables 3,984 3,850 Total accounts and other receivables 99,757 89,124 Less: Allowance for bad debts and sales returns (2,572) (2,797) Total accounts and other receivables, net $ 97,185 $ 86,327 As of September 30, 2021, other receivables include $1.5 million related to a one-time tax credit in Brazil for unemployment/social security insurance non-income taxes ("PIS/COFINS") that is available and expected to be applied to future required Brazilian federal tax payments in 2021. In May 2021, the Brazil Supreme Court ruled in a leading case related to the amount of Brazilian value-added tax to exclude from the calculation of PIS/COFINS. As a result, in the second quarter of 2021, the Company recorded a pre-tax gain of $8.5 million for certain excess PIS/COFINS paid from 2003 to 2021, that included applicable interest, which the Company expects to apply to future required Brazilian federal tax payments. The pretax gain was recorded in “Other income (expense), net” in the condensed consolidated statements of income.

Discontinued Operations and Dis

Discontinued Operations and Disposal Groups (Tables)	9 Months Ended
	Sep. 30, 2021
Discontinued Operations and Disposal Groups [Abstract]
Disposal Groups, Including Discontinued Operations	The following table summarizes the financial results of discontinued operations reflected in the consolidated statements of income for the three and nine months ended September 30, 2021 and 2020: Three Months Ended September 30, Nine Months Ended September 30, (In thousands) 2021 2020 2021 2020 Revenues and other items: Sales $ — $ 29,509 $ — $ 98,053 Other income (expense), net — (37) — (298) — 29,472 — 97,755 Costs and expenses: Cost of goods sold — 25,481 — 83,408 Freight — 1,436 — 4,711 Selling, general and administrative 33 6,502 1,251 13,649 Research and development — 3,138 — 8,451 Asset impairments and costs associated with exit and disposal activities, net of adjustments — 801 — 1,327 Adjustment to the fair value estimates used in the disposal of Personal Care Films (a) — — (1,118) — Held for sale impairment loss on divested assets — 45,054 — 45,054 Total 33 82,412 133 156,600 Income (loss) from discontinued operations before income taxes (33) (52,940) (133) (58,845) Income tax expense (benefit) (7) (4,703) (29) (5,814) Income (loss) from discontinued operations, net of tax $ (26) $ (48,237) $ (104) $ (53,031) (a) Represents a net increase to the estimated fair value of Personal Care Films primarily due to lower costs associated with IT transition-related services to provide the seller developed assets, which did not exist at the time of the sale, to support the seller's IT infrastructure. The assets and liabilities of the discontinued operations reflected in the consolidated balance sheets as of September 30, 2021 and December 31, 2020, respectively, were as follows: September 30, December 31, (In thousands) 2021 2020 Assets Prepaid expenses and other (a) $ 151 $ 1,339 Other non-current assets 151 151 Total assets of discontinued operations $ 302 $ 1,490 Liabilities Accrued expenses (a) $ 370 $ 7,521 (a) The consolidated balance sheet of discontinued operations as of September 30, 2021 includes $0.2 million of other receivables related to the settlement of customary post-closing adjustments, accrued severance of $0.3 million, and other miscellaneous accrued expenses of $0.1 million. The consolidated balance sheet of discontinued operations as of December 31, 2020 includes $0.4 million of other receivables related to the settlement of customary post-closing adjustments, deferred assets of $0.9 million and deferred obligations of $5.3 million related to transition services, accrued severance of $2.1 million, and other miscellaneous accrued expenses of $0.2 million. The following table provides significant operating and investing cash flow information for discontinued operations: Nine Months Ended September 30, (In thousands) 2021 2020 Operating activities Depreciation and amortization $ — $ 6,625 Held for sale impairment loss on divested assets — 45,054 Other (1,118) — Total (1,118) 51,679 Investing activities Capital expenditures $ — $ 2,989

Inventories (Tables)

Inventories (Tables)	9 Months Ended
	Sep. 30, 2021
Inventory, Net [Abstract]
Schedule of Inventory, Current	The components of inventories are as follows: (In thousands) September 30, 2021 December 31, 2020 Finished goods $ 21,614 $ 15,251 Work-in-process 12,586 9,098 Raw materials 32,836 25,913 Stores, supplies and other 18,650 16,175 Total $ 85,686 $ 66,437

Earnings Per Share (Tables)

Earnings Per Share (Tables)	9 Months Ended
	Sep. 30, 2021
Earnings Per Share [Abstract]
Schedule of Earnings Per Share, Basic and Diluted	Diluted earnings per share is computed by dividing net income (loss) from continuing and discontinued operations by the weighted average common and potentially dilutive common equivalent shares outstanding, determined as follows: Three Months Ended Nine Months Ended September 30, September 30, (In thousands) 2021 2020 2021 2020 Weighted average shares outstanding used to compute basic earnings per share 33,620 33,439 33,541 33,396 Incremental dilutive shares attributable to stock options and restricted stock 29 — 137 — Shares used to compute diluted earnings per share 33,649 33,439 33,678 33,396

Accumulated Other Comprehensi_2

Accumulated Other Comprehensive Income (Loss) (Tables)	3 Months Ended
	Sep. 30, 2020
Other Comprehensive Income (Loss), Net of Tax [Abstract]
Schedule Of Reclassifications Of Balances Out Of Accumulated Other Comprehensive Income (Loss) Into Net Income	Reclassifications of balances out of accumulated other comprehensive income (loss) into net income (loss) for the three months ended September 30, 2021 are summarized as follows: (In thousands) Amount reclassified from accumulated other comprehensive income (loss) Location of gain (loss) reclassified from accumulated other comprehensive income (loss) to net income (loss) Gain (loss) on derivative financial instruments: Aluminum future contracts, before taxes $ 2,160 Cost of goods sold Foreign currency forward contracts, before taxes (34) Selling, general & administrative Foreign currency forward contracts, before taxes 15 Cost of goods sold Total, before taxes 2,141 Income tax expense (benefit) 476 Income tax expense (benefit) Total, net of tax $ 1,665 Amortization of pension and other post-retirement benefits: Actuarial gain (loss) and prior service costs, before taxes $ (4,244) (a) Income tax expense (benefit) (927) Income tax expense (benefit) Total, net of tax $ (3,317) (a) This component of accumulated other comprehensive income (loss) is included in the computation of net periodic pension cost (see Note 9 for additional detail). Reclassifications of balances out of accumulated other comprehensive income (loss) into net income (loss) for the nine months ended September 30, 2021 are summarized as follows: (In thousands) Amount reclassified from accumulated other comprehensive income (loss) Location of gain (loss) reclassified from accumulated other comprehensive income (loss) to net income (loss) Gain (loss) on derivative financial instruments: Aluminum future contracts, before taxes $ 4,172 Cost of goods sold Foreign currency forward contracts, before taxes (183) Selling, general & administrative Foreign currency forward contracts, before taxes 48 Cost of goods sold Total, before taxes 4,037 Income tax expense (benefit) 880 Income tax expense (benefit) Total, net of tax $ 3,157 Amortization of pension and other post-retirement benefits: Actuarial gain (loss) and prior service costs, before taxes $ (12,727) (a) Income tax expense (benefit) (2,773) Income tax expense (benefit) Total, net of tax $ (9,954) (a) This component of accumulated other comprehensive income (loss) is included in the computation of net periodic pension cost (see Note 9 for additional detail). Reclassifications of balances out of accumulated other comprehensive income (loss) into net income for the three months ended September 30, 2020 are summarized as follows: (In thousands) Amount reclassified from accumulated other comprehensive income (loss) Location of gain (loss) reclassified from accumulated other comprehensive income (loss) to net income (loss) Gain (loss) on derivative financial instruments: Aluminum future contracts, before taxes $ (575) Cost of goods sold Foreign currency forward contracts, before taxes (1,767) Selling, general & administrative Foreign currency forward contracts, before taxes 15 Cost of goods sold Total, before taxes (2,327) Income tax expense (benefit) (496) Income tax expense (benefit) Total, net of tax $ (1,831) Amortization of pension and other post-retirement benefits: Actuarial gain (loss) and prior service costs, before taxes $ (3,767) (a) Income tax expense (benefit) (836) Income tax expense (benefit) Total, net of tax $ (2,931) (a) This component of accumulated other comprehensive income (loss) is included in the computation of net periodic pension cost (see Note 9 for additional detail). Reclassifications of balances out of accumulated other comprehensive income (loss) into net income for the nine months ended September 30, 2020 are summarized as follows: (In thousands) Amount reclassified from accumulated other comprehensive income (loss) Location of gain (loss) reclassified from accumulated other comprehensive income (loss) to net income (loss) Gain (loss) on derivative financial instruments: Aluminum future contracts, before taxes $ (2,766) Cost of goods sold Foreign currency forward contracts, before taxes (4,359) Selling, general & administrative Foreign currency forward contracts, before taxes 46 Cost of goods sold Total, before taxes (7,079) Income tax expense (benefit) (1,523) Income tax expense (benefit) Total, net of tax $ (5,556) Amortization of pension and other post-retirement benefits: Actuarial gain (loss) and prior service costs, before taxes $ (11,300) (a) Income tax expense (benefit) (2,507) Income tax expense (benefit) Total, net of tax $ (8,793) (a) This component of accumulated other comprehensive income (loss) is included in the computation of net periodic pension cost (see Note 9 for additional detail).

Derivative Financial Instrume_2

Derivative Financial Instruments (Tables)	9 Months Ended
	Sep. 30, 2021
Summary of Derivative Instruments [Abstract]
Summary Of Location And Fair Value Of Derivative Financial Instruments	The table below summarizes the location and gross amounts of aluminum futures contract fair values (Level 2) in the consolidated balance sheets as of September 30, 2021 and December 31, 2020: September 30, 2021 December 31, 2020 (In thousands) Balance Sheet Fair Balance Sheet Fair Derivatives Designated as Hedging Instruments Asset derivatives: Aluminum futures contracts Prepaid expenses and other $ 3,996 Prepaid expenses and other $ 1,560 Liability derivatives: Aluminum futures contracts Accrued expenses (1) Accrued expenses (22) Net asset $ 3,995 $ 1,538
Schedule Of Pretax Effect On Net Income (Loss) And Other Comprehensive Income (Loss) Of Derivative Instruments Classified As Cash Flow Hedges	The pretax effect on net income (loss) and other comprehensive income (loss) of derivative instruments classified as cash flow hedges and described in the previous paragraphs for the three and nine month periods ended September 30, 2021 and 2020 is summarized in the table below: Cash Flow Derivative Hedges Three Months Ended September 30, Aluminum Futures Contracts Foreign Currency Forwards (In thousands) 2021 2020 2021 2020 Amount of pretax gain (loss) recognized in other comprehensive income (loss) $ 2,919 $ 1,158 $ — $ (1,670) $ — $ (655) Location of gain (loss) reclassified from accumulated other comprehensive income (loss) into net income (effective portion) Cost of goods sold Cost of goods sold Cost of goods sold Selling, general & admin Cost of goods sold Selling, general & admin Amount of pretax gain (loss) reclassified from accumulated other comprehensive income (loss) to net income (effective portion) $ 2,160 $ (575) $ 15 $ (34) $ 15 $ (1,767) Nine Months Ended September 30, Aluminum Futures Contracts Foreign Currency Forwards 2021 2020 2021 2020 Amount of pre-tax gain (loss) recognized in other comprehensive income (loss) $ 6,629 $ (1,637) $ — $ (1,892) $ — $ (6,015) Location of gain (loss) reclassified from accumulated other comprehensive income (loss) into net income (effective portion) Cost of goods sold Cost of goods sold Cost of goods sold Selling, general & admin Cost of goods sold Selling, general & admin Amount of pre-tax gain (loss) reclassified from accumulated other comprehensive income (loss) to net income (effective portion) $ 4,172 $ (2,766) $ 48 $ (183) $ 46 $ (4,359)
Schedule of Derivative Instruments in Statement of Financial Position, Fair Value [Table Text Block]	The table below summarizes the location and gross amounts of aluminum futures contract fair values (Level 2) in the consolidated balance sheets as of September 30, 2021 and December 31, 2020: September 30, 2021 December 31, 2020 (In thousands) Balance Sheet Fair Balance Sheet Fair Derivatives Designated as Hedging Instruments Asset derivatives: Aluminum futures contracts Prepaid expenses and other $ 3,996 Prepaid expenses and other $ 1,560 Liability derivatives: Aluminum futures contracts Accrued expenses (1) Accrued expenses (22) Net asset $ 3,995 $ 1,538
Derivative Instruments and Hedging Activities Disclosure [Text Block]	DERIVATIVES Tredegar uses derivative financial instruments for the purpose of hedging margin exposure from fixed-price forward sales contracts in Aluminum Extrusions and exposure from currency volatility that exists as part of ongoing business operations in Flexible Packaging Films. These derivative financial instruments are designated as and qualify as cash flow hedges and are recognized in the consolidated balance sheet at fair value. The fair value of derivative instruments is recorded on the consolidated balance sheets. If individual derivative instruments with the same counterparty can be settled on a net basis, the Company records the corresponding derivative fair values as a net asset or net liability. In the normal course of business, Aluminum Extrusions enters into fixed-price forward sales contracts with certain customers for the future sale of fixed quantities of aluminum extrusions at scheduled intervals. In order to hedge margin exposure created from the fixing of future sales prices relative to volatile raw material (aluminum) costs, Aluminum Extrusions enters into a combination of forward purchase commitments and futures contracts to acquire or hedge aluminum, based on the scheduled purchases for the firm sales commitments. The fixed-price firm sales commitments and related hedging instruments generally have durations of not more than 12 months. The notional amount of aluminum futures contracts that hedged future purchases of aluminum to meet fixed-price forward sales contract obligations was $18.7 million (13.9 million pounds of aluminum) at September 30, 2021 and $12.1 million (13.0 million pounds of aluminum) at December 31, 2020. The table below summarizes the location and gross amounts of aluminum futures contract fair values (Level 2) in the consolidated balance sheets as of September 30, 2021 and December 31, 2020: September 30, 2021 December 31, 2020 (In thousands) Balance Sheet Fair Balance Sheet Fair Derivatives Designated as Hedging Instruments Asset derivatives: Aluminum futures contracts Prepaid expenses and other $ 3,996 Prepaid expenses and other $ 1,560 Liability derivatives: Aluminum futures contracts Accrued expenses (1) Accrued expenses (22) Net asset $ 3,995 $ 1,538 In the event that a counterparty to an aluminum fixed-price forward sales contract chooses not to take delivery of its aluminum extrusions, the customer is contractually obligated to compensate Aluminum Extrusions for any losses on the related aluminum futures and/or forward contracts through the date of cancellation. The Company's earnings are exposed to foreign currency exchange risk primarily through the translation of the financial statements of subsidiaries that have a functional currency other than the U.S. Dollar. The Company estimates that the net mismatch translation exposure for the Flexible Packaging Film's business unit in Brazil (“Terphane Ltda.”) of its sales and raw materials quoted or priced in U.S. Dollars and its variable conversion, fixed conversion and sales, general and administrative costs (before depreciation and amortization) quoted or priced in Brazilian Real ("R$") is annual net costs of R$150 million. Terphane Ltda. has the following outstanding foreign exchange average forward rate contracts to purchase Brazilian Real and sell U.S. Dollars: USD Notional Amount (000s) Average Forward Rate Contracted on USD/BRL R$ Equivalent Amount (000s) Applicable Month Estimated % of Terphane Ltda. R$ Operating Cost Exposure Hedged $1,400 5.5100 R$7,714 Oct-21 78% $1,495 5.5224 R$8,256 Nov-21 83% $1,170 5.5060 R$6,442 Dec-21 65% $1,677 5.3360 R$8,948 Jan-22 72% $1,751 5.3631 R$9,391 Feb-22 75% $1,662 5.3905 R$8,959 Mar-22 72% $1,615 5.4247 R$8,761 Apr-22 70% $1,647 5.4545 R$8,984 May-22 72% $1,596 5.4890 R$8,760 Jun-22 70% $1,719 5.5200 R$9,489 Jul-22 76% $1,708 5.5560 R$9,489 Aug-22 76% $1,780 5.5915 R$9,953 Sep-22 80% $1,793 5.6264 R$10,088 Oct-22 81% $1,784 5.6597 R$10,097 Nov-22 81% $1,659 5.6962 R$9,450 Dec-22 76% $24,456 5.5112 R$134,781 75% These foreign currency exchange contracts have been designated and qualify as cash flow hedges of Terphane Ltda.’s forecasted sales to customers quoted or priced in U.S. Dollars over that period. By changing the currency risk associated with these U.S. Dollar sales, the derivatives have the effect of offsetting operating costs quoted or priced in Brazilian Real and decreasing the net exposure to Brazilian Real in the consolidated statements of income. Pre-tax accumulated gains of $0.9 million related to the net fair value of the open forward contracts is reported in accumulated other comprehensive income (loss) as of September 30, 2021. The table below summarizes the location and gross amounts of foreign currency forward contract fair values (Level 2) in the consolidated balance sheets as of September 30, 2021 and December 31, 2020: September 30, 2021 December 31, 2020 (In thousands) Balance Sheet Fair Balance Sheet Fair Derivatives Designated as Hedging Instruments Asset derivatives: Foreign currency forward contracts Prepaid expenses and other $ 99 Prepaid expenses and other $ 853 Liability derivatives: Foreign currency forward contracts Accrued expenses (891) Accrued expenses (466) Net asset (liability) $ (792) $ 387 These derivative contracts involve elements of market risk that are not reflected on the consolidated balance sheet, including the risk of dealing with counterparties and their ability to meet the terms of the contracts. The counterparties to any forward purchase commitments are major aluminum brokers and suppliers, and the counterparties to any aluminum futures contracts are major financial institutions. Fixed-price forward sales contracts are only made available to the best and most credit-worthy customers. The counterparties to the Company’s foreign currency cash flow hedge contracts are major financial institutions. The pretax effect on net income (loss) and other comprehensive income (loss) of derivative instruments classified as cash flow hedges and described in the previous paragraphs for the three and nine month periods ended September 30, 2021 and 2020 is summarized in the table below: Cash Flow Derivative Hedges Three Months Ended September 30, Aluminum Futures Contracts Foreign Currency Forwards (In thousands) 2021 2020 2021 2020 Amount of pretax gain (loss) recognized in other comprehensive income (loss) $ 2,919 $ 1,158 $ — $ (1,670) $ — $ (655) Location of gain (loss) reclassified from accumulated other comprehensive income (loss) into net income (effective portion) Cost of goods sold Cost of goods sold Cost of goods sold Selling, general & admin Cost of goods sold Selling, general & admin Amount of pretax gain (loss) reclassified from accumulated other comprehensive income (loss) to net income (effective portion) $ 2,160 $ (575) $ 15 $ (34) $ 15 $ (1,767) Nine Months Ended September 30, Aluminum Futures Contracts Foreign Currency Forwards 2021 2020 2021 2020 Amount of pre-tax gain (loss) recognized in other comprehensive income (loss) $ 6,629 $ (1,637) $ — $ (1,892) $ — $ (6,015) Location of gain (loss) reclassified from accumulated other comprehensive income (loss) into net income (effective portion) Cost of goods sold Cost of goods sold Cost of goods sold Selling, general & admin Cost of goods sold Selling, general & admin Amount of pre-tax gain (loss) reclassified from accumulated other comprehensive income (loss) to net income (effective portion) $ 4,172 $ (2,766) $ 48 $ (183) $ 46 $ (4,359)
Derivative, Description of Hedged Item	Terphane Ltda. has the following outstanding foreign exchange average forward rate contracts to purchase Brazilian Real and sell U.S. Dollars: USD Notional Amount (000s) Average Forward Rate Contracted on USD/BRL R$ Equivalent Amount (000s) Applicable Month Estimated % of Terphane Ltda. R$ Operating Cost Exposure Hedged $1,400 5.5100 R$7,714 Oct-21 78% $1,495 5.5224 R$8,256 Nov-21 83% $1,170 5.5060 R$6,442 Dec-21 65% $1,677 5.3360 R$8,948 Jan-22 72% $1,751 5.3631 R$9,391 Feb-22 75% $1,662 5.3905 R$8,959 Mar-22 72% $1,615 5.4247 R$8,761 Apr-22 70% $1,647 5.4545 R$8,984 May-22 72% $1,596 5.4890 R$8,760 Jun-22 70% $1,719 5.5200 R$9,489 Jul-22 76% $1,708 5.5560 R$9,489 Aug-22 76% $1,780 5.5915 R$9,953 Sep-22 80% $1,793 5.6264 R$10,088 Oct-22 81% $1,784 5.6597 R$10,097 Nov-22 81% $1,659 5.6962 R$9,450 Dec-22 76% $24,456 5.5112 R$134,781 75%

Pension And Other Post-Retire_2

Pension And Other Post-Retirement Benefits (Tables)	9 Months Ended
	Sep. 30, 2021
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Schedule Of Components Of Net Periodic Benefit Cost For Pension And Other Post-Retirement Benefit Programs	The components of net periodic benefit cost for the pension and other postretirement benefit programs reflected in the consolidated statements of income for the three and nine months ended September 30, 2021 and 2020, are shown below: Pension Benefits Other Post-Retirement Benefits Three Months Ended September 30, Three Months Ended September 30, (In thousands) 2021 2020 2021 2020 Service cost $ — $ — $ 9 $ 9 Interest cost 2,101 2,535 50 60 Expected return on plan assets (2,862) (2,804) — — Amortization of prior service costs, (gains) losses and net transition asset 4,268 3,814 (24) (47) Net periodic benefit cost $ 3,507 $ 3,545 $ 35 $ 22 Pension Benefits Other Post-Retirement Benefits Nine Months Ended September 30, Nine Months Ended September 30, (In thousands) 2021 2020 2021 2020 Service cost $ — $ — $ 26 $ 28 Interest cost 6,305 7,605 151 180 Expected return on plan assets (8,587) (8,412) — — Amortization of prior service costs, (gains) losses and net transition asset 12,799 11,441 (72) (141) Net periodic benefit cost $ 10,517 $ 10,634 $ 105 $ 67

Other Income (Expense), Net Oth

Other Income (Expense), Net Other Income (Expense), Net Summary Table (Tables)	9 Months Ended
	Sep. 30, 2021
Other Income and Expenses [Abstract]
Schedule of Other Nonoperating Income (Expense) [Table Text Block]	Three Months Ended September 30, Nine Months Ended September 30, (In thousands) 2021 2020 2021 2020 Gain (loss) on investment in kaléo accounted for under fair value method (a) $ 279 $ (36,200) $ 1,197 $ (61,000) One-time tax credit in Brazil for unemployment/social security insurance non-income taxes resulting from a favorable decision by Brazil’s Supreme Court regarding the calculation of such tax (b) — — 8,486 — Transition service fees, net of corporate costs associated with the divested Personal Care business (85) (1,130) 486 (1,130) COVID-19-related expenses, net of relief (c) (159) (494) (594) (1,594) Write-down of investment in Harbinger Capital Partners Special Situations Fund (d) (6) (115) (517) (296) Gain associated with the sale of Lake Zurich manufacturing facility assets 377 — 377 — Other (15) 5 (163) 122 Total $ 391 $ (37,934) $ 9,272 $ (63,898) (a) The gain in the first nine months of 2021 includes a $0.3 million dividend received from kaléo in the first quarter of 2021. (b) See Note 13 for additional information. (c) Costs associated with operating under COVID-19 conditions include employee overtime expenses associated with absenteeism, personal protective equipment supplies and facility maintenance. (d) Represents the unrealized loss on the Company’s investment in Harbinger Capital Partners Special Situations Fund L.P. that had a fair value of $0.2 million and $0.8 million as of September 30, 2021 and 2020, respectively, and $0.7 million as of December 31, 2020 reported in "Other assets" in the condensed consolidated balance sheet.

Segment Reporting (Tables)

Segment Reporting (Tables)	9 Months Ended
	Sep. 30, 2021
Segment Reporting [Abstract]
Schedule Of Segment Reporting Information By Segment	The following table presents net sales and EBITDA from ongoing operations by segment for the three and nine months ended September 30, 2021 and 2020: Three Months Ended September 30, Nine Months Ended September 30, (In thousands) 2021 2020 2021 2020 Net Sales Aluminum Extrusions $ 137,086 $ 115,621 $ 394,492 $ 339,566 PE Films 28,501 26,440 87,885 103,444 Flexible Packaging Films 36,666 35,856 102,560 100,534 Total net sales 202,253 177,917 584,937 543,544 Add back freight 7,264 6,453 20,531 19,222 Sales as shown in the consolidated statements of income $ 209,517 $ 184,370 $ 605,468 $ 562,766 EBITDA from Ongoing Operations Aluminum Extrusions: Ongoing operations: EBITDA $ 12,038 $ 16,540 $ 45,062 $ 41,496 Depreciation & amortization (3,900) (4,251) (12,062) (12,632) EBIT 8,138 12,289 33,000 28,864 Plant shutdowns, asset impairments, restructurings and other (160) (720) (223) (2,637) Goodwill impairment — — — (13,696) PE Films: Ongoing operations: EBITDA 4,821 6,041 21,035 33,928 Depreciation & amortization (1,591) (1,785) (4,681) (4,868) EBIT 3,230 4,256 16,354 29,060 Plant shutdowns, asset impairments, restructurings and other (182) (56) (457) (225) Flexible Packaging Films: Ongoing operations: EBITDA 7,396 9,546 25,296 22,594 Depreciation & amortization (493) (443) (1,466) (1,306) EBIT 6,903 9,103 23,830 21,288 Plant shutdowns, asset impairments, restructurings and other (7) (3) 8,407 (14) Total 17,922 24,869 80,911 62,640 Interest income 8 11 40 43 Interest expense 842 494 2,555 1,598 Gain (loss) on investment in kaléo accounted for under fair value method 279 (36,200) 1,197 (61,000) Stock option-based compensation costs 675 518 1,819 1,786 Corporate expenses, net 8,555 10,586 30,470 29,915 Income (loss) from continuing operations before income taxes 8,137 (22,918) 47,304 (31,616) Income tax expense (benefit) 1,908 (5,942) 10,728 (8,308) Income (loss) from continuing operations 6,229 (16,976) 36,576 (23,308) Income (loss) from discontinued operations, net of tax (26) (48,237) (104) (53,031) Net income (loss) $ 6,203 $ (65,213) $ 36,472 $ (76,339)
Schedule Of Identifiable Assets By Segment	The following table presents identifiable assets by segment at September 30, 2021 and December 31, 2020: (In thousands) September 30, 2021 December 31, 2020 Aluminum Extrusions $ 274,183 $ 244,560 PE Films 111,690 119,013 Flexible Packaging Films 72,626 66,453 Subtotal 458,499 430,026 General corporate 56,780 71,508 Cash and cash equivalents 30,253 11,846 Discontinued operations 302 1,490 Total $ 545,834 $ 514,870
Disaggregation of Revenue [Table Text Block]	The following tables disaggregate the Company’s revenue by geographic area and product group for the three and nine months ended September 30, 2021 and 2020: Net Sales by Geographic Area (a) Three Months Ended September 30, Nine Months Ended September 30, (In thousands) 2021 2020 2021 2020 United States $ 157,969 $ 129,654 $ 447,585 $ 395,207 Exports from the United States to: Asia 12,609 14,255 43,129 59,816 Latin America 1,170 465 3,630 1,953 Canada 4,107 7,200 14,145 13,359 Europe 1,343 1,468 3,323 4,272 Operations outside the United States: Brazil 25,055 24,875 73,125 68,937 Total $ 202,253 $ 177,917 $ 584,937 $ 543,544 (a) Export sales relate entirely to PE Films. Operations in Brazil are related to Flexible Packaging Films. The Company’s facilities in Pottsville, PA (“PV”) and Guangzhou, China (“GZ”) have a tolling arrangement whereby certain surface protection films are manufactured in GZ for a fee with raw materials supplied from PV that are then shipped by GZ directly to customers principally in the Asian market, but paid by customers directly to PV. Amounts associated with this intercompany tolling arrangement are reported in the table above as export sales from the U.S. to Asia, and include net sales of $7.4 million and $5.9 million in the third quarters of 2021 and 2020, respectively, and $25.0 million and $25.1 million in the first nine months of 2021 and 2020, respectively. Net Sales by Product Group Three Months Ended September 30, Nine Months Ended September 30, (In thousands) 2021 2020 2021 2020 Aluminum Extrusions: Nonresidential building & construction $ 68,590 $ 62,611 $ 195,941 $ 190,476 Consumer durables 12,873 11,160 39,611 31,491 Automotive 10,150 10,332 32,750 25,375 Residential building & construction 13,154 10,149 39,755 29,016 Electrical 8,015 5,992 24,767 18,006 Machinery & equipment 11,611 7,581 31,190 23,147 Distribution 12,693 7,796 30,478 22,055 Subtotal 137,086 115,621 394,492 339,566 PE Films: Surface protection films 20,905 19,868 65,997 79,919 Packaging 7,596 5,042 21,888 17,262 LED lighting products — 1,530 — 6,263 Subtotal 28,501 26,440 87,885 103,444 Flexible Packaging Films 36,666 35,856 102,560 100,534 Total $ 202,253 $ 177,917 $ 584,937 $ 543,544

Income Taxes (Tables)

Income Taxes (Tables)	9 Months Ended
	Sep. 30, 2021
Income Tax Disclosure [Abstract]
Schedule Of Effective Income Tax Rate For Continuing Operations	The significant differences between the U.S. federal statutory rate and the effective income tax rate for the nine months ended September 30, 2021 and 2020 are as follows: (In thousands, except percentages) 2021 2020 Nine Months Ended September 30, Amount % Amount % Income tax (benefit) expense at federal statutory rate $ 9,934 21.0 % $ (6,639) 21.0 % Foreign rate differences 4,787 10.1 % 2,772 (8.8) % U.S. Tax on Foreign Branch Income 4,124 8.7 % 656 (2.1) % State taxes, net of federal income tax benefit 829 1.8 % (537) 1.7 % Stock-based compensation 616 1.3 % 240 (0.8) % Non-deductible expenses 544 1.2 % 312 (1.0) % Valuation allowance for capital loss carry-forwards 74 0.2 % 61 (0.2) % Unremitted earnings from foreign operations 117 0.2 % — — % Tax contingency accruals and tax settlements — — % (148) 0.5 % Tax impact of dividend received (33) (0.1) % — — % Changes in estimates related to prior year tax provision (501) (1.1) % (1,001) 3.2 % Research and development tax credit (925) (2.0) % (612) 1.9 % Foreign tax incentives (8,838) (18.7) % (3,412) 10.8 % Income tax expense (benefit) at effective income tax rate $ 10,728 22.7 % $ (8,308) 26.2 %

Basis Of Presentation Restricte

Basis Of Presentation Restricted Cash Text (Details) - USD ($) $ in Millions	Sep. 30, 2021	Dec. 31, 2020
Basis Of Presentation [Abstract]
Cash, Period Increase (Decrease)	$ 0.5	$ 3.8

Impairment (Details)

Impairment (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Impaired Long-Lived Assets Held and Used [Line Items]
Goodwill, Impairment Loss	$ 0	$ 0	$ 0	$ (13,696)
Goodwill, Impairment Loss, Net of Tax				10,500
Aluminum Extrusions [Member]
Impaired Long-Lived Assets Held and Used [Line Items]
Goodwill, Impairment Loss	$ 0	$ 0	$ 0	$ 13,696

Divestitures and Assets Held _2

Divestitures and Assets Held for Sale - Narrative (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
	Sep. 30, 2021	Sep. 30, 2021	Sep. 30, 2020	Aug. 24, 2020
Discontinued Operations and Disposal Groups [Abstract]
Disposal Group, Including Discontinued Operation, Consideration				$ 60.5
Disposal Group Including Discontinued Operation Cash Proceeds		$ 64.1
Proceeds from Sale of Productive Assets	$ 4.7
Assets Held-for-sale, Not Part of Disposal Group			$ 4.6

Divestitures and Assets Held _3

Divestitures and Assets Held for Sale - Discontinued Operations Reflected in the Consolidated Statements of Income (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Discontinued Operations and Disposal Groups [Abstract]
Disposal Group, Including Discontinued Operation, Revenue	$ 0	$ 29,509	$ 0	$ 98,053
Disposal Group, Including Discontinued Operation, Other Expense	0	(37)	0	(298)
Disposal Group, Including Discontinued Operation, Gross Profit (Loss)	0	29,472	0	97,755
Disposal Group, Including Discontinued Operation, Costs of Goods Sold	0	25,481	0	83,408
Disposal Group, Including Discontinued Operation, Freight	0	1,436	0	4,711
Disposal Group, Including Discontinued Operation, General and Administrative Expense	33	6,502	1,251	13,649
Disposal Group, Including Discontinued Operation, Research and Develpoment	0	3,138	0	8,451
Asset impairments and costs associated with exit and disposal activities, net of adjustments	0	801	0	1,327
Disposal Group, Including Discontinued Operation, adjustment to fair value	0	0	(1,118)	0
Asset Impairment Charges	0	45,054	0	45,054
Disposal Group, Including Discontinued Operation, Operating Expense	33	82,412	133	156,600
Disposal Group, Including Discontinued Operation, Operating Income (Loss)	(33)	(52,940)	(133)	(58,845)
Income Tax Expense (Benefit), Continuing Operations, Discontinued Operations	(7)	(4,703)	(29)	(5,814)
Income (loss) from discontinued operations, net of tax	$ (26)	$ (48,237)	$ (104)	$ (53,031)

Divestitures and Assets Held _4

Divestitures and Assets Held for Sale - Assets and Liabilities of the Discontinued Operations Reflected in the Consolidated Balance Sheets (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Discontinued Operations and Disposal Groups [Abstract]
Disposal Group, Including Discontinued Operation, Prepaid and Other Assets, Current	$ 151	$ 1,339
Disposal Group, Including Discontinued Operation, Other Assets, Noncurrent	151	151
Disposal Group, Including Discontinued Operation, Assets	302	1,490
Disposal Group, Including Discontinued Operation, Accrued Expenses	(370)	7,521
Disposal Group, Including Discontinued Operation, Accrued Severance	300	2,100
Disposal Group, Including Discontinued Operation, Other Accrued Expense	100	200
Disposal Group, Including Discontinued Operation, Other Receivable	$ 200	400
Disposal Group, Including Discontinued Operation, Deferred Assets		900
Disposal Group, Including Discontinued Operation, Deferred Obligation		$ 5,300

Divestitures and Assets Held _5

Divestitures and Assets Held for Sale - Operating and Investing Cash Flow Information for Discontinued Operations (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Discontinued Operations and Disposal Groups [Abstract]
Depreciation and Amortization, Discontinued Operations	$ 0			$ 6,625
Disposal Group, Including Discontinued Operation, Asset Impairment	0
Asset Impairment Charges	0	$ 45,054	$ 0	45,054
Disposal Group, Including Discontinued Operation, adjustment to fair value	0	$ 0	(1,118)	0
Cash Provided by (Used in) Operating Activities, Discontinued Operations			$ (1,118)	51,679
Capital Expenditure, Discontinued Operations	$ 0			$ 2,989

Inventories (Schedule Of Compon

Inventories (Schedule Of Components Of Inventories) (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Inventory, Net [Abstract]
Finished goods	$ 21,614	$ 15,251
Work-in-process	12,586	9,098
Raw materials	32,836	25,913
Stores, supplies and other	18,650	16,175
Inventories	$ 85,686	$ 66,437

Earnings Per Share (Narrative)

Earnings Per Share (Narrative) (Details) - shares	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Earnings Per Share [Abstract]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	2,433,213	1,509,429	1,280,376	1,253,278

Earnings Per Share (Schedule Of

Earnings Per Share (Schedule Of Calculation Of Numerator And Denominator In Earnings Per Share) (Details) - shares shares in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Earnings Per Share [Abstract]
Weighted average shares outstanding used to compute basic earnings per share	33,620	33,439	33,541	33,396
Incremental dilutive shares attributable to stock options and restricted stock	29	0	137	0
Shares used to compute diluted earnings per share	33,649	33,439	33,678	33,396

Accumulated Other Comprehensi_3

Accumulated Other Comprehensive Income (Loss) (Schedule Of Reclassifications Of Balances Out Of Accumulated Other Comprehensive Income (Loss) Into Net Income) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Selling, general and administrative	$ 16,767	$ 20,420	$ 55,422	$ 61,654
Income before income taxes	(8,137)	22,918	(47,304)	31,616
Income taxes from continuing operations	(1,908)	5,942	(10,728)	8,308
Net income (loss)	6,203	(65,213)	36,472	(76,339)
Reclassification Out Of Accumulated Other Comprehensive Income | Gain (Loss) on Derivative Financial Instruments
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Income before income taxes	(2,141)	2,327	(4,037)	7,079
Income taxes from continuing operations	(476)	496	(880)	1,523
Net income (loss)	1,665	(1,831)	3,157	(5,556)
Reclassification Out Of Accumulated Other Comprehensive Income | Gain (Loss) on Derivative Financial Instruments | Aluminum Futures Contracts
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Cost of goods sold	2,160	(575)	4,172	(2,766)
Reclassification Out Of Accumulated Other Comprehensive Income | Pension & Other Post-retirement Benefit Adjustment
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Actuarial gain (loss) and prior service costs, before taxes	(4,244)	(3,767)	(12,727)	(11,300)
Income taxes from continuing operations	927	836	2,773	2,507
Net income (loss)	(3,317)	(2,931)	(9,954)	(8,793)
Selling, general & admin | Reclassification Out Of Accumulated Other Comprehensive Income | Gain (Loss) on Derivative Financial Instruments | Foreign Currency Forward Contracts
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Selling, general and administrative	(34)	(1,767)	(183)	(4,359)
Cost of Sales [Member] | Reclassification Out Of Accumulated Other Comprehensive Income | Gain (Loss) on Derivative Financial Instruments | Foreign Currency Forward Contracts
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Cost of goods sold	$ 15	$ 15	$ 48	$ 46

Investments (Narrative) (Detail

Investments (Narrative) (Details) 1 - kaleo [Member] - USD ($) $ in Millions	6 Months Ended	9 Months Ended
	Jun. 30, 2021	Sep. 30, 2021	Dec. 31, 2008
Equity Method Investments and Joint Ventures [Abstract]
Equity Method Investment, Ownership Percentage		18.00%
Total cash invested in private company			$ 7.5
Equity Method Investment, Ownership Percentage		18.00%
Total cash invested in private company			$ 7.5
DCF Method for Fair Value Estimate [Member]
Equity Method Investments and Joint Ventures [Abstract]
Weighting of EBITDA Multiple Method versus DCF Method		80.00%
Weighting of EBITDA Multiple Method versus DCF Method		80.00%
EBITDA Multiple Method for Fair Value Estimate [Member]
Equity Method Investments and Joint Ventures [Abstract]
Weighting of EBITDA Multiple Method versus DCF Method		20.00%
Weighting of EBITDA Multiple Method versus DCF Method		20.00%
Measurement Input, Discount Rate [Member] | DCF Method for Fair Value Estimate [Member]
Equity Method Investments and Joint Ventures [Abstract]
Servicing Assets and Servicing Liabilities at Fair Value, Assumptions Used to Estimate Fair Value, Discount Rate	20.00%	20.00%
Servicing Assets and Servicing Liabilities at Fair Value, Assumptions Used to Estimate Fair Value, Discount Rate	20.00%	20.00%

Derivative Financial Instrume_3

Derivative Financial Instruments (Narrative) (Details) R$ in Thousands, $ in Thousands, lbs in Millions	9 Months Ended
	Sep. 30, 2021USD ($)lbs	Sep. 30, 2021BRL (R$)	Sep. 30, 2021BRL (R$)lbs	Dec. 31, 2020USD ($)lbs
Derivative [Line Items]
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, before Tax	$ 900
Amounts of unrealized after tax gains (losses) to be Reclassified within Twelve Months	(2,900)
Aluminum Futures Contracts
Derivative [Line Items]
Derivative, Notional Amount	$ 18,700			$ 12,100
Commitment Under Cash Flow Hedges, Mass | lbs	13.9		13.9	13
Terphane Ltda [Member]
Derivative [Line Items]
Derivative, Notional Amount	$ 24,456		R$ 134781
Accrued Expenses [Member] | Derivatives Designated As Hedging Instruments [Member] | Aluminum Futures Contracts
Derivative [Line Items]
Derivative Asset, Fair Value, Gross Asset	3,996			$ 1,560
Derivative Liability, Fair Value, Gross Liability	$ 1			$ 22
Oct-2018 [Member] | Terphane Ltda [Member]
Derivative [Line Items]
Annual Net Costs Mismatch Translation Exposure - Real vs US Dollar | R$		R$ 150000

Derivative Financial Instrume_4

Derivative Financial Instruments (Summary Of Location And Fair Value Of Derivative Financial Instruments) (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Flexible Packaging Films [Member] [Domain] | Accrued Expenses [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value, Gross Asset	$ (792)	$ 387
Aluminum Futures Contracts | Prepaid Expenses and Other Current Assets
Derivatives, Fair Value [Line Items]
Derivative Assets (Liabilities), at Fair Value, Net	3,995	1,538
Derivatives Designated As Hedging Instruments [Member] | Flexible Packaging Films [Member] [Domain] | Accrued Expenses [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value, Gross Asset	99	853
Liability derivatives: Fair Value	891	466
Derivatives Designated As Hedging Instruments [Member] | Aluminum Futures Contracts | Accrued Expenses [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value, Gross Asset	3,996	1,560
Liability derivatives: Fair Value	$ (1)	$ (22)

Derivative Financial Instrume_5

Derivative Financial Instruments (Schedule Of Pretax Effect On Net Income (Loss) And Other Comprehensive Income (Loss) Of Derivative Instruments Classified As Cash Flow Hedges) (Details) - Cash Flow Derivative Hedges - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Aluminum Futures Contracts | Cost of goods sold
Derivative Instruments, Gain (Loss) [Line Items]
Amount of pretax gain (loss) recognized in other comprehensive income (loss)	$ 2,919	$ 1,158	$ 6,629	$ (1,637)
Amount of pretax gain (loss) reclassified from accumulated other comprehensive income (loss) to net income (effective portion)	2,160	(575)	4,172	(2,766)
Foreign Currency Forwards | Cost of goods sold
Derivative Instruments, Gain (Loss) [Line Items]
Amount of pretax gain (loss) recognized in other comprehensive income (loss)	0	0	0	0
Amount of pretax gain (loss) reclassified from accumulated other comprehensive income (loss) to net income (effective portion)	15	15	48	46
Foreign Currency Forwards | Selling, general & admin
Derivative Instruments, Gain (Loss) [Line Items]
Amount of pretax gain (loss) recognized in other comprehensive income (loss)	(1,670)	(655)	(1,892)	(6,015)
Amount of pretax gain (loss) reclassified from accumulated other comprehensive income (loss) to net income (effective portion)	$ (34)	$ (1,767)	$ (183)	$ (4,359)

Derivative Financial Instrume_6

Derivative Financial Instruments Terphane Future Cash Flow Hedges (Details) - Terphane Ltda [Member] R$ in Thousands, $ in Thousands	Sep. 30, 2021USD ($)	Sep. 30, 2021BRL (R$)
Derivative [Line Items]
Derivative, Notional Amount	$ 24,456	R$ 134781
Percentage of Coverage Using Cash Flow Hedges	75.00%	75.00%
Foreign Currency Exchange Rate, Translation	5.5112	5.5112
Oct-20 [Member] [Member]
Derivative [Line Items]
Derivative, Notional Amount	$ 1,400	R$ 7714
Percentage of Coverage Using Cash Flow Hedges	78.00%	78.00%
Foreign Currency Exchange Rate, Translation	5.5100	5.5100
Nov-21
Derivative [Line Items]
Derivative, Notional Amount	$ 1,784	R$ 10097
Percentage of Coverage Using Cash Flow Hedges	81.00%	81.00%
Foreign Currency Exchange Rate, Translation	5.6597	5.6597
Aug-21
Derivative [Line Items]
Derivative, Notional Amount	$ 1,708	R$ 9489
Percentage of Coverage Using Cash Flow Hedges	76.00%	76.00%
Foreign Currency Exchange Rate, Translation	5.5560	5.5560
Jun-21
Derivative [Line Items]
Derivative, Notional Amount	$ 1,596	R$ 8760
Percentage of Coverage Using Cash Flow Hedges	70.00%	70.00%
Foreign Currency Exchange Rate, Translation	5.4890	5.4890
Nov-20 [Member] [Member]
Derivative [Line Items]
Derivative, Notional Amount	$ 1,495	R$ 8256
Percentage of Coverage Using Cash Flow Hedges	83.00%	83.00%
Foreign Currency Exchange Rate, Translation	5.5224	5.5224
Dec-20 [Member] [Member]
Derivative [Line Items]
Derivative, Notional Amount	$ 1,170	R$ 6442
Percentage of Coverage Using Cash Flow Hedges	65.00%	65.00%
Foreign Currency Exchange Rate, Translation	5.5060	5.5060
Jan-21
Derivative [Line Items]
Derivative, Notional Amount	$ 1,677	R$ 8948
Percentage of Coverage Using Cash Flow Hedges	72.00%	72.00%
Foreign Currency Exchange Rate, Translation	5.3360	5.3360
Feb-21
Derivative [Line Items]
Derivative, Notional Amount	$ 1,751	R$ 9391
Percentage of Coverage Using Cash Flow Hedges	75.00%	75.00%
Foreign Currency Exchange Rate, Translation	5.3631	5.3631
Mar-21
Derivative [Line Items]
Derivative, Notional Amount	$ 1,662	R$ 8959
Percentage of Coverage Using Cash Flow Hedges	72.00%	72.00%
Foreign Currency Exchange Rate, Translation	5.3905	5.3905
Apr-21
Derivative [Line Items]
Derivative, Notional Amount	$ 1,615	R$ 8761
Percentage of Coverage Using Cash Flow Hedges	70.00%	70.00%
Foreign Currency Exchange Rate, Translation	5.4247	5.4247
May-21
Derivative [Line Items]
Derivative, Notional Amount	$ 1,647	R$ 8984
Percentage of Coverage Using Cash Flow Hedges	72.00%	72.00%
Foreign Currency Exchange Rate, Translation	5.4545	5.4545
Jul-21
Derivative [Line Items]
Derivative, Notional Amount	$ 1,719	R$ 9489
Percentage of Coverage Using Cash Flow Hedges	76.00%	76.00%
Foreign Currency Exchange Rate, Translation	5.5200	5.5200
Sep-21
Derivative [Line Items]
Derivative, Notional Amount	$ 1,780	R$ 9953
Percentage of Coverage Using Cash Flow Hedges	80.00%	80.00%
Foreign Currency Exchange Rate, Translation	5.5915	5.5915
Oct-21
Derivative [Line Items]
Derivative, Notional Amount	$ 1,793	R$ 10088
Percentage of Coverage Using Cash Flow Hedges	81.00%	81.00%
Foreign Currency Exchange Rate, Translation	5.6264	5.6264
Dec-21
Derivative [Line Items]
Derivative, Notional Amount	$ 1,659	R$ 9450
Percentage of Coverage Using Cash Flow Hedges	76.00%	76.00%
Foreign Currency Exchange Rate, Translation	5.6962	5.6962

Pension And Other Post-Retire_3

Pension And Other Post-Retirement Benefits (Narrative) (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2021	Dec. 31, 2020
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Amounts for Asset (Liability) Recognized in Statement of Financial Position	$ (103.7)	$ (111.3)
Other Post-Retirement Benefits
Defined Benefit Plan Disclosure [Line Items]
Contribution to pension plans for continuing operations	0.5
Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Expected required contributions	11.7
Contribution to pension plans for continuing operations	5.1
Accrued Expenses [Member]
Defined Benefit Plan Disclosure [Line Items]
Liability, Defined Benefit Plan, Current	$ 0.7

Pension And Other Post-Retire_4

Pension And Other Post-Retirement Benefits (Schedule Of Components Of Net Periodic Benefit Cost For Pension And Other Post-Retirement Benefit Programs) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 0	$ 0	$ 0	$ 0
Interest cost	2,101	2,535	6,305	7,605
Expected return on plan assets	(2,862)	(2,804)	(8,587)	(8,412)
Amortization of prior service costs, (gains) losses and net transition asset	4,268	3,814	12,799	11,441
Net periodic benefit cost	3,507	3,545	10,517	10,634
Other Post-Retirement Benefits
Defined Benefit Plan Disclosure [Line Items]
Service cost	9	9	26	28
Interest cost	50	60	151	180
Expected return on plan assets	0	0	0	0
Amortization of prior service costs, (gains) losses and net transition asset	(24)	(47)	(72)	(141)
Net periodic benefit cost	$ 35	$ 22	$ 105	$ 67

Other Income (Expense), Net (De

Other Income (Expense), Net (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020
Schedule of Investments [Line Items]
Brazil One-time Tax Credit PIS/COFINS	$ 0	$ 0	$ 8,486,000	$ 0
Other Nonrecurring Expense	(85,000)	(1,130,000)	486,000	(1,130,000)
Other Nonoperating Expense	(159,000)	(494,000)	(594,000)	(1,594,000)
Gain (Loss) on Disposition of Other Assets	377,000	0	377,000	0
Other Nonoperating Income (Expense), Net - Other	(15,000)	5,000	(163,000)	122,000
Other income (expense), net	391,000	(37,934,000)	9,272,000	(63,898,000)
Investment Income, Dividend	300,000
kaleo [Member]
Schedule of Investments [Line Items]
Unrealized Gain (Loss) on Investments - kaleo	279,000	(36,200,000)	1,197,000	(61,000,000)
Harbinger Capital Partners Special Situations Fund
Schedule of Investments [Line Items]
Gain (Loss) on Investments	(6,000)	(115,000)	(517,000)	(296,000)
Carrying value	$ 200,000	$ 800,000	$ 200,000	$ 800,000	$ 700,000

Segment Reporting (Schedule Of

Segment Reporting (Schedule Of Segment Reporting Information By Segment) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Segment Reporting Information [Line Items]
Sales	$ 202,253	$ 177,917	$ 584,937	$ 543,544
Sales as shown in the consolidated statements of income	209,517	184,370	605,468	562,766
Goodwill, Impairment Loss, Net of Tax				10,500
Total Segment Income (Loss)	17,922	24,869	80,911	62,640
Goodwill, Impairment Loss	0	0	0	13,696
Gain (Loss) on Disposition of Assets			0	(45,054)
Income tax expense (benefit)	1,908	(5,942)	10,728	(8,308)
Interest income	8	11	40	43
Interest expense	842	494	2,555	1,598
(Gain) loss on investment in kaléo accounted for under the fair value method			(879)	61,000
Stock option-based compensation costs	675	518	1,819	1,786
Corporate expenses, net	8,555	10,586	30,470	29,915
Income (loss) from continuing operations before income taxes	8,137	(22,918)	47,304	(31,616)
Income from continuing operations	6,229	(16,976)	36,576	(23,308)
Income (loss) from discontinued operations, net of tax	(26)	(48,237)	(104)	(53,031)
Net Income (Loss) Attributable to Parent	6,203	(65,213)	36,472	(76,339)
kaleo [Member]
Segment Reporting Information [Line Items]
(Gain) loss on investment in kaléo accounted for under the fair value method	279	(36,200)	1,197	(61,000)
Aluminum Extrusions [Member]
Segment Reporting Information [Line Items]
Sales	137,086	115,621	394,492	339,566
Earnings before interest, taxes, depreciation and amortization (EBITDA)	12,038	16,540	45,062	41,496
EBITDA	(160)	(720)	(223)	(2,637)
Depreciation, Depletion and Amortization	(3,900)	(4,251)	(12,062)	(12,632)
Earnings before interest and taxes (EBIT)	8,138	12,289	33,000	28,864
Goodwill, Impairment Loss	0	0	0	(13,696)
PE Films [Member]
Segment Reporting Information [Line Items]
Sales	28,501	26,440	87,885	103,444
Earnings before interest, taxes, depreciation and amortization (EBITDA)	4,821	6,041	21,035	33,928
EBITDA	(182)	(56)	(457)	(225)
Depreciation, Depletion and Amortization	(1,591)	(1,785)	(4,681)	(4,868)
Earnings before interest and taxes (EBIT)	3,230	4,256	16,354	29,060
Flexible Packaging Films [Member] [Domain]
Segment Reporting Information [Line Items]
Sales	36,666	35,856	102,560	100,534
EBITDA	(7)	(3)	8,407	(14)
Flexible Packaging Films [Member]
Segment Reporting Information [Line Items]
Earnings before interest, taxes, depreciation and amortization (EBITDA)	7,396	9,546	25,296	22,594
Depreciation, Depletion and Amortization	(493)	(443)	(1,466)	(1,306)
Earnings before interest and taxes (EBIT)	6,903	9,103	23,830	21,288
Shipping and Handling [Member]
Segment Reporting Information [Line Items]
Cost of goods sold	7,264	6,453	20,531	19,222
Surface Protection Films [Member] | PE Films [Member]
Segment Reporting Information [Line Items]
Sales	20,905	19,868	65,997	79,919
Films For Other Markets [Member] | PE Films [Member]
Segment Reporting Information [Line Items]
Sales	0	1,530	0	6,263
Film Products Subtotal [Member] | PE Films [Member]
Segment Reporting Information [Line Items]
Sales	28,501	26,440	87,885	103,444
Nonresidential Building And Construction [Member] | Aluminum Extrusions [Member]
Segment Reporting Information [Line Items]
Sales	68,590	62,611	195,941	190,476
Consumer Durables [Member] | Aluminum Extrusions [Member]
Segment Reporting Information [Line Items]
Sales	12,873	11,160	39,611	31,491
Distribution [Member] | Aluminum Extrusions [Member]
Segment Reporting Information [Line Items]
Sales	12,693	7,796	30,478	22,055
Automotive [Member] | Aluminum Extrusions [Member]
Segment Reporting Information [Line Items]
Sales	10,150	10,332	32,750	25,375
Residential Building And Construction [Member] | Aluminum Extrusions [Member]
Segment Reporting Information [Line Items]
Sales	13,154	10,149	39,755	29,016
Machinery and Equipment BNL [Domain] | Aluminum Extrusions [Member]
Segment Reporting Information [Line Items]
Sales	11,611	7,581	31,190	23,147
Electrical [Member] | Aluminum Extrusions [Member]
Segment Reporting Information [Line Items]
Sales	8,015	5,992	24,767	18,006
Aluminum Extrusions Subtotal [Member] | Aluminum Extrusions [Member]
Segment Reporting Information [Line Items]
Sales	137,086	115,621	394,492	339,566
Product [Member]
Segment Reporting Information [Line Items]
Cost of goods sold	170,756	136,008	470,733	415,212
Overwrap films | PE Films [Member]
Segment Reporting Information [Line Items]
Sales	$ 7,596	$ 5,042	$ 21,888	$ 17,262

Segment Reporting (Schedule O_2

Segment Reporting (Schedule Of Identifiable Assets By Segment) (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020	Sep. 30, 2020	Dec. 31, 2019
Subtotal	$ 458,499	$ 430,026
General corporate	56,780	71,508
Cash, cash equivalents, and restricted cash at beginning of period	30,253	11,846	$ 35,022	$ 31,422
Disposal Group, Including Discontinued Operation, Assets	302	1,490
Total assets	545,834	514,870
PE Films [Member]
Total assets	111,690	119,013
Flexible Packaging Films [Member] [Domain]
Total assets	72,626	66,453
Aluminum Extrusions [Member]
Total assets	$ 274,183	$ 244,560

Segment Reporting Schedule of R

Segment Reporting Schedule of Revenue by Geographic Location (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Disaggregation of Revenue [Line Items]
Sales	$ 202,253	$ 177,917	$ 584,937	$ 543,544
UNITED STATES
Disaggregation of Revenue [Line Items]
Sales	157,969	129,654	447,585	395,207
PE Films [Member]
Disaggregation of Revenue [Line Items]
Sales	28,501	26,440	87,885	103,444
PE Films [Member] | Surface Protection Films [Member]
Disaggregation of Revenue [Line Items]
Sales	20,905	19,868	65,997	79,919
PE Films [Member] | Films For Other Markets [Member]
Disaggregation of Revenue [Line Items]
Sales	0	1,530	0	6,263
PE Films [Member] | Film Products Subtotal [Member]
Disaggregation of Revenue [Line Items]
Sales	28,501	26,440	87,885	103,444
Flexible Packaging Films [Member] [Domain]
Disaggregation of Revenue [Line Items]
Sales	36,666	35,856	102,560	100,534
Aluminum Extrusions [Member]
Disaggregation of Revenue [Line Items]
Sales	137,086	115,621	394,492	339,566
Aluminum Extrusions [Member] | Nonresidential Building And Construction [Member]
Disaggregation of Revenue [Line Items]
Sales	68,590	62,611	195,941	190,476
Aluminum Extrusions [Member] | Consumer Durables [Member]
Disaggregation of Revenue [Line Items]
Sales	12,873	11,160	39,611	31,491
Aluminum Extrusions [Member] | Distribution [Member]
Disaggregation of Revenue [Line Items]
Sales	12,693	7,796	30,478	22,055
Aluminum Extrusions [Member] | Automotive [Member]
Disaggregation of Revenue [Line Items]
Sales	10,150	10,332	32,750	25,375
Aluminum Extrusions [Member] | Residential Building And Construction [Member]
Disaggregation of Revenue [Line Items]
Sales	13,154	10,149	39,755	29,016
Aluminum Extrusions [Member] | Aluminum Extrusions Subtotal [Member]
Disaggregation of Revenue [Line Items]
Sales	137,086	115,621	394,492	339,566
Aluminum Extrusions [Member] | Machinery and Equipment BNL [Domain]
Disaggregation of Revenue [Line Items]
Sales	11,611	7,581	31,190	23,147
Aluminum Extrusions [Member] | Electrical [Member]
Disaggregation of Revenue [Line Items]
Sales	8,015	5,992	24,767	18,006
Exports From United States [Member] | Asia [Member]
Disaggregation of Revenue [Line Items]
Sales	12,609	14,255	43,129	59,816
Revenues	7,400	5,900	25,000	25,100
Exports From United States [Member] | CANADA
Disaggregation of Revenue [Line Items]
Sales	4,107	7,200	14,145	13,359
Exports From United States [Member] | Europe [Member]
Disaggregation of Revenue [Line Items]
Sales	1,343	1,468	3,323	4,272
Exports From United States [Member] | Latin America [Member]
Disaggregation of Revenue [Line Items]
Sales	1,170	465	3,630	1,953
Operations Outside United States [Member] | BRAZIL
Disaggregation of Revenue [Line Items]
Sales	$ 25,055	$ 24,875	$ 73,125	$ 68,937

Income Taxes - Narrative (Detai

Income Taxes - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Income Taxes [Line Items]
Income Tax Expense (Benefit)	$ 1,908	$ (5,942)	$ 10,728	$ (8,308)
Income (loss) from continuing operations before income taxes	$ 8,137	$ (22,918)	$ 47,304	$ (31,616)
Effective Income Tax Rate Reconciliation, Percent			22.70%	26.20%
Flexible Packaging Films [Member]
Income Taxes [Line Items]
Foreign Tax Credit - Brazil			$ 8,800	$ 3,400
Terphane Ltda [Member]
Income Taxes [Line Items]
Current Effective Tax Rate Including Social Contribution On Income			15.25%
LengthBrazilianTaxIncentive			13 years
Brazil
Income Taxes [Line Items]
Effective Income Tax Rate Reconciliation Federal Statutory Tax Rate Including Social Contribution On Income			34.00%
Effective Income Tax Rate Reconciliation Federal Statutory Tax Rate Excluding Social Contribution On Income			25.00%
Effective income tax rate reconciliation social contribution on income			9.00%

Income Taxes (Schedule Of Effec

Income Taxes (Schedule Of Effective Income Tax Rate For Continuing Operations) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Amount
Income tax (benefit) expense at federal statutory rate			$ 9,934	$ (6,639)
Foreign rate differences			4,787	2,772
U.S. Tax on Foreign Branch Income			4,124	656
State taxes, net of federal income tax benefit			829	(537)
Stock-based compensation			616	240
Non-deductible expenses			544	312
Valuation allowance for capital loss carry-forwards			74	61
Unremitted earnings from foreign operations			(117)	0
Tax contingency accruals and tax settlements			0	(148)
Tax impact of dividend received			(33)	0
Changes in estimates related to prior year tax provision			(501)	(1,001)
Research and development tax credit			(925)	(612)
Foreign tax incentives			(8,838)	(3,412)
Income tax expense (benefit) at effective income tax rate	$ 1,908	$ (5,942)	$ 10,728	$ (8,308)
Percent
Income tax expense at federal statutory rate			21.00%	21.00%
Foreign rate differences			10.10%	(8.80%)
Effective Income Tax Rate Reconciliation - U.S. Tax on Foreign Branch Income - Percentage			8.70%	(2.10%)
State taxes, net of federal income tax benefit			1.80%	1.70%
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Share-based Payment Arrangement, Percent			1.30%	(0.80%)
Non-deductible expenses			1.20%	(1.00%)
Valuation allowance for capital loss carry-forwards			0.20%	(0.20%)
Unremitted earnings from foreign operations			0.20%	0.00%
Income tax contingency accruals and tax settlements			0.00%	0.50%
Effective Income Tax Rate Reconciliation, Deduction, Dividend, Percent			(0.10%)	0.00%
Changes in estimates related to prior year tax provision			(1.10%)	3.20%
Research and development tax credit			(2.00%)	1.90%
Foreign tax incentives			(18.70%)	10.80%
Effective Income Tax Rate Reconciliation, Percent			22.70%	26.20%
Effective income tax rate for income from continuing operations			(22.70%)	(26.20%)

Accounts and Other Receivables

Accounts and Other Receivables (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts Receivable, before Allowance for Credit Loss	$ 99,757		$ 99,757		$ 89,124
Accounts Receivable, before Allowance for Credit Loss, Current	95,773		95,773		85,274
Accounts and other receivables, net	97,185		97,185		86,327
Other Receivables	3,984		3,984		3,850
Allowance for Doubtful Accounts, Premiums and Other Receivables	(2,572)		(2,572)		$ (2,797)
Brazil One-time Tax Credit PIS/COFINS	0	$ 0	8,486	$ 0
Brazil One-time Tax Credit PIS/COFINS Receivable	$ 1,500		$ 1,500