Tredegar (TG) 10-Q 6 Aug 20 2020 Q1 Quarterly report Financial data

Document And Entity Information

Document And Entity Information - shares	3 Months Ended	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2020	Jul. 31, 2020
Document And Entity Information [Abstract]
Entity Registrant Name	Tredegar Corporation	TREDEGAR CORP
Entity Central Index Key		0000850429
Current Fiscal Year End Date		--12-31
Entity Filer Category	Accelerated Filer
Document Type	10-Q	10-Q
Entity Emerging Growth Company		false
Entity Small Business		false
Entity Current Reporting Status	Yes	Yes
Entity Shell Company	false	false
Document Period End Date		Jun. 30, 2020
Document Fiscal Year Focus		2020
Document Fiscal Period Focus (Q1,Q2,Q3,FY)		Q1
Amendment Flag		false
Entity Common Stock, Shares Outstanding			33,516,949
Document Quarterly Report	true	true
Document Transition Report		false
Entity File Number	1-10258
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 Interactive Data Current	Yes

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Operating Lease, Liability, Noncurrent	$ 16,305	$ 17,689
Common Stock, Shares Held in Employee Trust, Shares	75,792	74,798
Taxes Payable	$ 5,613	$ 0
Accounts and other receivables, allowance for doubtful accounts and sales returns	$ 3,383	$ 3,036
Common stock, shares issued	33,518,577	33,365,039
Common stock, shares outstanding	33,518,577	33,365,039
Receivables, Net, Current	$ 100,460	$ 107,558
Current assets:
Cash and cash equivalents	39,930	31,422
Receivables, Net, Current	100,460	107,558
Income Taxes Receivable, Current	852	4,100
Inventories	85,218	81,380
Prepaid expenses and other	10,383	8,696
Total current assets	236,843	233,156
Property, plant and equipment, at cost	806,476	810,801
Less accumulated depreciation	(576,556)	(567,911)
Net property, plant and equipment	229,920	242,890
Operating Lease, Right-of-Use Asset	17,879	19,220
Investment in kaleo	70,700	95,500
Intangible Assets, Net (Excluding Goodwill)	20,766	22,636
Goodwill	67,708	81,404
Deferred Tax Assets, Net, Noncurrent	10,826	13,129
Other assets	4,165	4,733
Total assets	658,807	712,668
Current liabilities:
Accounts payable	92,882	103,657
Accrued expenses	47,054	45,809
Operating Lease, Liability, Current	2,949	3,002
Total current liabilities	148,498	152,468
Operating Lease, Liability, Noncurrent	16,305	17,689
Long-term debt	34,000	42,000
Liability, Pension and Other Postretirement and Postemployment Benefits, Noncurrent	104,903	107,446
Deferred income taxes	0	11,019
Other noncurrent liabilities	4,227	5,297
Total liabilities	307,933	335,919
Shareholders’ equity:
Common Stock, Value, Issued	47,448	45,514
Common Stock Held in Trust	(1,610)	(1,592)
Foreign currency translation adjustment	(112,666)	(100,663)
Gain (loss) on derivative financial instruments	(3,824)	(1,307)
Pension and other post-retirement benefit adjustments	(89,819)	(95,681)
Retained earnings	511,345	530,478
Total shareholders’ equity	350,874	376,749
Total liabilities and shareholders’ equity	658,807	712,668
Other
Receivables, Net, Current	103,843	110,594
Current assets:
Receivables, Net, Current	$ 103,843	$ 110,594

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Statement of Financial Position [Abstract]
Accounts and other receivables, allowance for doubtful accounts and sales returns	$ 3,383	$ 3,036
Common stock, shares issued	33,518,577	33,365,039
Common stock, shares outstanding	33,518,577	33,365,039
Common Stock, Shares Held in Employee Trust, Shares	75,792	74,798

Consolidated Statements Of Inco

Consolidated Statements Of Income - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Gross Sales	$ 218,638	$ 248,248	$ 446,940	$ 496,714
Revenues and other items:
Other income (expense), net	(13)	7,096	(26,225)	24,206
Total revenues, net of other expenses	218,625	255,344	420,715	520,920
Costs and expenses:
Selling, general and administrative	25,212	23,864	48,381	45,875
Research and development	4,865	5,451	9,720	9,936
Amortization of identifiable intangibles	753	890	1,511	1,782
Accrued pension and post-retirement benefits	3,567	2,416	7,134	4,831
Interest expense	548	1,263	1,104	2,495
Asset impairments and costs associated with exit and disposal activities, net of adjustments	136	1,075	597	2,131
Goodwill, Impairment Loss	0	0	13,696	0
Total	204,365	236,427	435,318	478,192
Income (loss) before income taxes	14,260	18,917	(14,603)	42,728
Income taxes from continuing operations	3,064	4,440	(3,477)	8,467
Net income (loss)	$ 11,196	$ 14,477	$ (11,126)	$ 34,261
Basic
Basic	$ 0.33	$ 0.44	$ (0.33)	$ 1.03
Diluted
Diluted	$ 0.33	$ 0.44	$ (0.33)	$ 1.03
Shares used to compute earnings (loss) per share:
Basic	33,435	33,270	33,374	33,197
Diluted	33,436	33,278	33,374	33,203
Dividends per share	$ 0.12	$ 0.11	$ 0.24	$ 0.22
Product [Member]
Costs and expenses:
Cost of goods sold	$ 161,820	$ 192,581	$ 337,131	$ 393,235
Shipping and Handling [Member]
Costs and expenses:
Cost of goods sold	$ 7,464	$ 8,887	$ 16,044	$ 17,907

Consolidated Statements Of Comp

Consolidated Statements Of Comprehensive Income (Loss) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ 11,196,000	$ 14,477,000	$ (11,126,000)	$ 34,261,000
Other comprehensive income (loss):
Foreign currency translation adjustment	(474,000)	507,000	(12,003,000)	(283,000)
Derivative financial instruments adjustment	1,258,000	621,000	(2,517,000)	268,000
Amortization of prior service costs and net gains or losses	2,931,000	2,079,000	5,862,000	4,158,000
Other comprehensive income (loss)	3,715,000	3,207,000	(8,658,000)	4,143,000
Comprehensive income (loss)	14,911,000	17,684,000	(19,784,000)	38,404,000
Foreign currency translation adjustment, tax (benefit)	177,000	0	1,106,000	0
Derivative financial instruments adjustment, tax (benefit)	(339,000)	134,000	(887,000)	51,000
Amortization of prior service costs and net gains or losses, tax	$ 835,000	$ 593,000	$ 1,671,000	$ 1,185,000

Consolidated Statements Of Co_2

Consolidated Statements Of Comprehensive Income (Loss) (Parenthetical) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Statement of Comprehensive Income [Abstract]
Foreign currency translation adjustment, tax (benefit)	$ 177,000	$ 0	$ 1,106,000	$ 0
Derivative financial instruments adjustment, tax (benefit)	(339,000)	134,000	(887,000)	51,000
Amortization of prior service costs and net gains or losses, tax	$ 835,000	$ 593,000	$ 1,671,000	$ 1,185,000

Consolidated Statements Of Cash

Consolidated Statements Of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Cash flows from operating activities:
Net income (loss)	$ (11,126)	$ 34,261
Adjustments for noncash items:
Depreciation	15,357	14,465
Amortization of identifiable intangibles	1,511	1,782
Amortization of Leased Asset	1,402	1,270
Payment for Pension and Other Postretirement Benefits	(2,130)	(3,648)
Deferred income taxes	(8,461)	5,339
Accrued pension and post-retirement benefits	7,134	4,831
(Gain) loss on investment in kaléo accounted for under the fair value method	(24,800)	6,600
Loss on asset impairments and divestitures	0	522
Gain (Loss) on Disposition of Assets	0	(11)
Changes in assets and liabilities:
Accounts and other receivables	2,303	8,471
Inventories	(8,515)	702
Income taxes recoverable/payable	8,799	3,860
Prepaid expenses and other	(1,912)	1,081
Accounts payable and accrued expenses	(6,936)	(566)
Operating Leases, Rent Expense	(1,496)	(1,306)
Other, net	1,636	4,043
Net Cash Provided by (Used in) Operating Activities	36,062	68,496
Cash flows from investing activities:
Capital expenditures	(8,806)	(24,251)
Proceeds from the sale of assets and other	0	(22)
Net cash used in investing activities	(8,806)	(24,229)
Cash flows from financing activities:
Borrowings	25,000	30,000
Debt principal payments	(33,000)	(58,500)
Dividends paid	(8,025)	(7,320)
Payments of Debt Issuance Costs	0	1,757
Payment, Tax Withholding, Share-based Payment Arrangement	586	854
Net cash used in financing activities	(16,611)	(38,431)
Effect of exchange rate changes on cash	(2,137)	(464)
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect	8,508	5,372
Cash, cash equivalents, and restricted cash at beginning of period	31,422	34,397
Cash, cash equivalents, and restricted cash at end of period	$ 39,930	$ 39,769

Consolidated Statements Of Shar

Consolidated Statements Of Shareholders' Equity - USD ($)	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, 2018	$ 354,857,000	$ 38,892,000	$ 497,511,000	$ (1,559,000)	$ (96,940,000)	$ (1,601,000)	$ (81,446,000)
Net income (loss)	34,261,000		34,261,000
Foreign currency translation adjustment (net of tax benefit of $1,106)	(283,000)				(283,000)
Derivative financial instruments adjustment (net of tax benefit of $887)	268,000					268,000
Amortization of prior service costs and net gains or losses (net of tax of $1,671)	4,158,000						4,158,000
Dividends, Common Stock, Cash	(7,320,000)		(7,320,000)
Stock-based compensation expense	3,189,000	3,189,000
Share-based Payment Arrangement, Decrease for Tax Withholding Obligation	(854,000)	(854,000)
Tredegar common stock purchased by trust for savings restoration plan			16,000	(16,000)
Ending Balance at Jun. 30, 2019	388,276,000	41,227,000	524,468,000	(1,575,000)	(97,223,000)	(1,333,000)	(77,288,000)
Foreign currency translation adjustment, tax (benefit)	0
Derivative financial instruments adjustment, tax (benefit)	$ (51,000)
Cash dividends declared, per share	$ 0.22
Amortization of prior service costs and net gains or losses, tax	$ 1,185,000
Beginning Balance at Mar. 31, 2019	372,621,000	39,587,000	513,653,000	(1,568,000)	(97,730,000)	(1,954,000)	(79,367,000)
Net income (loss)	14,477,000		14,477,000
Foreign currency translation adjustment (net of tax benefit of $1,106)	507,000				507,000
Derivative financial instruments adjustment (net of tax benefit of $887)	621,000					621,000
Amortization of prior service costs and net gains or losses (net of tax of $1,671)	2,079,000						2,079,000
Dividends, Common Stock, Cash	(3,669,000)		(3,669,000)
Stock-based compensation expense	1,679,000	1,679,000
Share-based Payment Arrangement, Decrease for Tax Withholding Obligation	(39,000)	(39,000)
Tredegar common stock purchased by trust for savings restoration plan			7,000	(7,000)
Ending Balance at Jun. 30, 2019	388,276,000	41,227,000	524,468,000	(1,575,000)	(97,223,000)	(1,333,000)	(77,288,000)
Foreign currency translation adjustment, tax (benefit)	0
Derivative financial instruments adjustment, tax (benefit)	$ (134,000)
Cash dividends declared, per share	$ 0.11
Amortization of prior service costs and net gains or losses, tax	$ 593,000
Beginning Balance at Dec. 31, 2019	376,749,000	45,514,000	530,478,000	(1,592,000)	(100,663,000)	(1,307,000)	(95,681,000)
Net income (loss)	(11,126,000)
Foreign currency translation adjustment (net of tax benefit of $1,106)	(12,003,000)				(12,003,000)
Derivative financial instruments adjustment (net of tax benefit of $887)	(2,517,000)					(2,517,000)
Amortization of prior service costs and net gains or losses (net of tax of $1,671)	5,862,000						5,862,000
Dividends, Common Stock, Cash	8,025,000		8,025,000
Stock-based compensation expense	2,520,000	2,520,000
Share-based Payment Arrangement, Decrease for Tax Withholding Obligation		(586,000)
Tredegar common stock purchased by trust for savings restoration plan			(18,000)	18,000
Ending Balance at Jun. 30, 2020	350,874,000	47,448,000	511,345,000	(1,610,000)	(112,666,000)	(3,824,000)	(89,819,000)
Foreign currency translation adjustment, tax (benefit)	1,106,000
Derivative financial instruments adjustment, tax (benefit)	$ 887,000
Cash dividends declared, per share	$ 0.24
Amortization of prior service costs and net gains or losses, tax	$ 1,671,000
Beginning Balance at Mar. 31, 2020	338,590,000	46,054,000	504,161,000	(1,601,000)	(112,192,000)	(5,082,000)	(92,750,000)
Net income (loss)	11,196,000
Foreign currency translation adjustment (net of tax benefit of $1,106)	(474,000)				(474,000)
Derivative financial instruments adjustment (net of tax benefit of $887)	1,258,000					1,258,000
Amortization of prior service costs and net gains or losses (net of tax of $1,671)	2,931,000						2,931,000
Dividends, Common Stock, Cash	4,021,000		4,021,000
Stock-based compensation expense	1,394,000	1,394,000
Share-based Payment Arrangement, Decrease for Tax Withholding Obligation	(586,000)
Tredegar common stock purchased by trust for savings restoration plan			(9,000)	9,000
Ending Balance at Jun. 30, 2020	350,874,000	$ 47,448,000	$ 511,345,000	$ (1,610,000)	$ (112,666,000)	$ (3,824,000)	$ (89,819,000)
Foreign currency translation adjustment, tax (benefit)	177,000
Derivative financial instruments adjustment, tax (benefit)	$ 339,000
Cash dividends declared, per share	$ 0.12
Amortization of prior service costs and net gains or losses, tax	$ 835,000

Consolidated Statements Of Sh_2

Consolidated Statements Of Shareholders' Equity (Parenthetical) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Statement of Stockholders' Equity [Abstract]
Foreign currency translation adjustment, tax (benefit)	$ 177,000	$ 0	$ 1,106,000	$ 0
Derivative financial instruments adjustment, tax (benefit)	339,000	(134,000)	887,000	(51,000)
Amortization of prior service costs and net gains or losses, tax	$ 835,000	$ 593,000	$ 1,671,000	$ 1,185,000
Cash dividends declared, per share	$ 0.12	$ 0.11	$ 0.24	$ 0.22

Basis Of Presentation

Basis Of Presentation	6 Months Ended
	Jun. 30, 2020
Basis Of Presentation [Abstract]
Basis Of Presentation	In the opinion of management, the accompanying 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 June 30, 2020, the consolidated results of operations for the three and six months ended June 30, 2020 and 2019, the consolidated cash flows for the six months ended June 30, 2020 and 2019, and the consolidated changes in shareholders’ equity for the three and six months ended June 30, 2020 and 2019, in accordance with U.S. generally accepted accounting principles (“GAAP”). All such adjustments, unless otherwise detailed in the notes to the consolidated interim 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 second quarter for 2020 and 2019 for this segment references 13-week periods ended June 28, 2020 and June 30, 2019, respectively. 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 financial position data as of December 31, 2019 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, 2019 (“2019 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 2019 Form 10-K. The results of operations for the three and six months ended June 30, 2020, are not necessarily indicative of the results to be expected for the full year. Certain prior year balances have been reclassified to conform with current year presentation. Adoption of ASU 2016-13, Financial Instruments - Credit Losses In the first quarter of 2020, the Company adopted ASU 2016-13 related to the measurement of credit losses on financial instruments. The pronouncement replaces the incurred loss methodology to record credit losses with a methodology that reflects the expected credit losses for financial assets not accounted for at fair value with gains and losses recognized through net income. The adoption of the updated guidance in the first quarter of 2020 resulted in an adjustment of less than $0.2 million and, therefore, did not have a material impact on the Company’s consolidated financial statements. The Company's policy on Accounts and Other Receivables as described in the 2019 Form 10-K was revised to read as follows: Accounts and Other Receivables. Accounts receivable are stated at the amount invoiced to customers less allowances for doubtful accounts and sales returns. Accounts receivable are non-interest bearing and arise from the sale of product to customers under typical industry trade terms. Notes receivable are not significant. Past due amounts are determined based on established terms and charged-off when deemed uncollectible. The allowance for doubtful accounts is determined based on an assessment of probable losses taking into account past due amounts, customer credit profile, historical experience and current economic conditions. For receivables that do not have a specific allowance, the loss rate is computed by segment to apply to the remaining receivables balance, using each segment’s historic loss rate. Other receivables include value-added taxes related to certain foreign subsidiaries and other miscellaneous receivables due within one year. For certain customers, the Company has arrangements in place with financial institutions whereby certain customer receivables are sold to the financial institution at a discount and without recourse. Upon sale, the associated receivable is unrecognized and the discount is recognized as a reduction of sales. As of June 30, 2020 and December 31, 2019, accounts receivable and other receivables, net, were $100.5 million and $107.6 million, respectively, made up of the following: June 30, December 31, (In thousands) 2020 2019 Customer receivables $ 99,520 $ 106,153 Other receivables 4,323 4,441 Total accounts and other receivables 103,843 110,594 Less: Allowance for bad debts and sales returns (3,383) (3,036) Total accounts and other receivables, net $ 100,460 $ 107,558

Impairment Goodwill Impairment

Impairment Goodwill Impairment (Notes)	6 Months Ended
	Jun. 30, 2020
Goodwill Impairment Disclosure [Abstract]
Goodwill Disclosure [Text Block]	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 June 30, 2020, the Company did not identify any indicators of impairment in light of the economic impacts from coronavirus pandemic ("COVID-19") for its asset groups. The Company assesses goodwill for impairment on an annual basis at a minimum (December 1st of each year) or 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 for all reporting units that include goodwill and determined that triggering events did occur during the first three months of 2020 for the Aluminum Extrusions’ reporting units created as a result of acquisitions in 2012 (“AACOA”) and in 2017 (“Futura”). The Company performed goodwill impairment tests for the AACOA and Futura reporting units using a combination of income and market approaches and determined that the fair value of the Futura reporting unit exceeded its carrying value. During the first three months of 2020, 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. The operations of the AACOA reporting unit, which includes the Niles, Michigan and Elkhart, Indiana facilities, have been severely impacted by COVID-19, with over 80% of the aluminum extrusions manufactured at these facilities sold to customers that make consumer durable products, such as recreational boating and power sports vehicles, as well as to customers serving building and construction and automotive markets. The Company evaluated whether triggering events occurred during the three months ended June 30, 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. Recent disruptions to the global economy from COVID-19 make it reasonably possible that future interim tests for long-lived assets and goodwill may be required during 2020. The Company continues to monitor developments and perform updated analyses as necessary.

Plants Shutdowns, Asset Impairm

Plants Shutdowns, Asset Impairments, Restructurings And Other	6 Months Ended
	Jun. 30, 2020
Restructuring Charges [Abstract]
Plant Shutdowns, Asset Impairments, Restructurings And Other	Since July 2019, the Company planned to close its PE Films manufacturing facility in Lake Zurich, Illinois (“Lake Zurich plant shutdown”). In March 2020, this facility was shut down and the production of elastic materials it previously produced was transferred to the new elastic production line at Terre Haute, Indiana. As a result of the Lake Zurich plant shutdown, the Company expects to recognize overall pre-tax cash costs of $6.9 million comprised of (i) customer-related costs ($0.7 million), (ii) severance and other employee related costs ($1.1 million), and (iii) asset disposal and other cash costs ($5.1 million). In addition, the Company expects overall non-cash asset write-offs and accelerated depreciation of $1.3 million. Total expenses associated with the Lake Zurich plant shutdown are $2.9 million since project inception. Cash expenditures were $0.7 million in the six months ended June 30, 2020. The Company anticipates that the Lake Zurich plant shutdown will be completed by the end of 2020 and that the sale of real property will occur sometime thereafter. A reconciliation of the beginning and ending balances of accrued expenses associated with exit and disposal activities and charges associated with asset impairments and reported as “Asset impairments and costs associated with exit and disposal activities, net of adjustments” in the consolidated statements of income for the six months ended June 30, 2020 is as follows: (In thousands) Severance Asset Impairments Other Total Balance at January 1, 2020 $ 1,294 $ — $ 86 $ 1,380 Changes in 2020: Charges: Lake Zurich plant shutdown 168 11 325 504 Other restructuring charges 77 — 16 93 245 11 341 597 Cash payments (1,148) — (386) (1,534) Charges against assets — (11) — (11) Balance at June 30, 2020 $ 391 $ — $ 41 $ 432

Inventories

Inventories	6 Months Ended
	Jun. 30, 2020
Inventory, Net [Abstract]
Inventories	The components of inventories are as follows: (In thousands) June 30, 2020 December 31, 2019 Finished goods $ 19,565 $ 24,504 Work-in-process 13,123 12,328 Raw materials 30,482 24,735 Stores, supplies and other 22,048 19,813 Total $ 85,218 $ 81,380

Earnings Per Share

Earnings Per Share	6 Months Ended
	Jun. 30, 2020
Earnings Per Share [Abstract]
Earnings Per Share	Basic earnings per share is computed by dividing net income by the weighted average number of shares of common stock outstanding. Diluted earnings per share is computed by dividing net income by the weighted average common and potentially dilutive common equivalent shares outstanding, determined as follows: Three Months Ended Six Months Ended June 30, June 30, (In thousands) 2020 2019 2020 2019 Weighted average shares outstanding used to compute basic earnings per share 33,435 33,270 33,374 33,197 Incremental dilutive shares attributable to stock options and restricted stock 1 8 — 6 Shares used to compute diluted earnings per share 33,436 33,278 33,374 33,203 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 Company had a net loss for the six months ended June 30, 2020, so there is no dilutive impact for such shares. For the three months ended June 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 1,567,709. If the Company had reported net income for the six months ended June 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 1,125,203.

Accumulated Other Comprehensive

Accumulated Other Comprehensive Income (Loss)	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Accumulated Other Comprehensive Income (Loss) [Line Items]
Comprehensive Income (Loss) Note [Text Block]		The following table summarizes the after-tax changes in accumulated other comprehensive income (loss) for the six months ended June 30, 2020: (In thousands) Foreign Gain (loss) on Pension and Total Beginning balance, January 1, 2020 $ (100,663) $ (1,307) $ (95,681) $ (197,651) Other comprehensive income (loss) before reclassifications (12,003) (6,242) — (18,245) Amounts reclassified from accumulated other comprehensive income (loss) — 3,725 5,862 9,587 Net other comprehensive income (loss) - current period (12,003) (2,517) 5,862 (8,658) Ending balance, June 30, 2020 $ (112,666) $ (3,824) $ (89,819) $ (206,309) The following table summarizes the after-tax changes in accumulated other comprehensive income (loss) for the six months ended June 30, 2019: (In thousands) Foreign Gain (loss) on Pension and Total Beginning balance, January 1, 2019 $ (96,940) $ (1,601) $ (81,446) $ (179,987) Other comprehensive income (loss) before reclassifications (283) (1,218) — (1,501) Amounts reclassified from accumulated other comprehensive income (loss) — 1,486 4,158 5,644 Net other comprehensive income (loss) - current period (283) 268 4,158 4,143 Ending balance, June 30, 2019 $ (97,223) $ (1,333) $ (77,288) $ (175,844) Reclassifications of balances out of accumulated other comprehensive income (loss) into net income (loss) for the three months ended June 30, 2020 are summarized as follows: (In thousands) Amount Location of gain Gain (loss) on derivative financial instruments: Aluminum future contracts, before taxes $ (1,551) Cost of sales Foreign currency forward contracts, before taxes (1,798) Selling, general & administrative Foreign currency forward contracts, before taxes 16 Cost of sales Total, before taxes (3,333) Income tax expense (benefit) (721) Income tax expense (benefit) Total, net of tax $ (2,612) Amortization of pension and other post-retirement benefits: Actuarial gain (loss) and prior service costs, before taxes $ (3,766) (a) Income tax expense (benefit) (835) 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 (loss) for the six months ended June 30, 2020 are summarized as follows: (In thousands) Amount Location of gain Gain (loss) on derivative financial instruments: Aluminum future contracts, before taxes $ (2,191) Cost of sales Foreign currency forward contracts, before taxes (2,592) Selling, general & administrative Foreign currency forward contracts, before taxes 31 Cost of sales Total, before taxes (4,752) Income tax expense (benefit) (1,027) Income tax expense (benefit) Total, net of tax $ (3,725) Amortization of pension and other post-retirement benefits: Actuarial gain (loss) and prior service costs, before taxes $ (7,533) (a) Income tax expense (benefit) (1,671) Income tax expense (benefit) Total, net of tax $ (5,862) (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 June 30, 2019 are summarized as follows: (In thousands) Amount Location of gain Gain (loss) on derivative financial instruments: Aluminum future contracts, before taxes $ (606) Cost of sales Foreign currency forward contracts, before taxes (369) Selling, general & administrative Foreign currency forward contracts, before taxes 16 Cost of sales Total, before taxes (959) Income tax expense (benefit) (131) Income tax expense (benefit) Total, net of tax $ (828) Amortization of pension and other post-retirement benefits: Actuarial gain (loss) and prior service costs, before taxes $ (2,672) (a) Income tax expense (benefit) (593) Income tax expense (benefit) Total, net of tax $ (2,079) (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 six months ended June 30, 2019 are summarized as follows: (In thousands) Amount Location of gain Gain (loss) on derivative financial instruments: Aluminum future contracts, before taxes $ (1,223) Cost of sales Foreign currency forward contracts, before taxes (560) Selling, general & administrative Foreign currency forward contracts, before taxes 31 Cost of sales Total, before taxes (1,752) Income tax expense (benefit) (266) Income tax expense (benefit) Total, net of tax $ (1,486) Amortization of pension and other post-retirement benefits: Actuarial gain (loss) and prior service costs, before taxes $ (5,343) (a) Income tax expense (benefit) (1,185) Income tax expense (benefit) Total, net of tax $ (4,158) (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).
Cost of goods sold	The following table summarizes the after-tax changes in accumulated other comprehensive income (loss) for the six months ended June 30, 2020: (In thousands) Foreign Gain (loss) on Pension and Total Beginning balance, January 1, 2020 $ (100,663) $ (1,307) $ (95,681) $ (197,651) Other comprehensive income (loss) before reclassifications (12,003) (6,242) — (18,245) Amounts reclassified from accumulated other comprehensive income (loss) — 3,725 5,862 9,587 Net other comprehensive income (loss) - current period (12,003) (2,517) 5,862 (8,658) Ending balance, June 30, 2020 $ (112,666) $ (3,824) $ (89,819) $ (206,309)	The following table summarizes the after-tax changes in accumulated other comprehensive income (loss) for the six months ended June 30, 2019: (In thousands) Foreign Gain (loss) on Pension and Total Beginning balance, January 1, 2019 $ (96,940) $ (1,601) $ (81,446) $ (179,987) Other comprehensive income (loss) before reclassifications (283) (1,218) — (1,501) Amounts reclassified from accumulated other comprehensive income (loss) — 1,486 4,158 5,644 Net other comprehensive income (loss) - current period (283) 268 4,158 4,143 Ending balance, June 30, 2019 $ (97,223) $ (1,333) $ (77,288) $ (175,844)

Investments

Investments	6 Months Ended
	Jun. 30, 2020
Equity Method Investments and Joint Ventures [Abstract]
Investments	In August 2007 and December 2008, the Company made an aggregate investment of $7.5 million in kaléo, Inc. (“kaléo”), a privately held specialty pharmaceutical company dedicated to building innovative solutions for serious and life-threatening medical conditions. Tredegar owns Series A-3 Preferred Stock and Series B Preferred Stock in kaléo that, taken together, represents on a fully-diluted basis an approximate 18% interest in kaléo. Tredegar accounts for its investment in kaléo under the fair value option. At the time of the initial investment, the Company elected the fair value option of accounting since its investment objectives were similar to those of venture capitalists, which typically do not have controlling financial interests. The estimated fair value of the Company’s investment was $70.7 million as of June 30, 2020 and $95.5 million as of December 31, 2019. The Company recognized an increase in value on its investment in kaléo of $1.3 million ($0.9 million after deferred income taxes) in the second quarter of 2020, but a decline of $24.8 million ($19.5 million after deferred income taxes) since the December 31, 2019 valuation. The decline in estimated fair value during the first six months of 2020 was primarily due to: (i) lower expectations for 2020 EBITDA and net cash flow associated with lower market demand for epinephrine delivery devices resulting from COVID-19-related social distancing guidelines, especially if such guidelines or restrictions impact the peak back-to-school season and (ii) a higher private company liquidity discount. The net appreciation on its investment of $24.2 million($19.9 million after deferred income taxes) in the first six months of 2019, included a pre-tax cash dividend of $17.6 million paid on April 30, 2019. Future dividends are subject to the discretion of kaléo’s board of directors. 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 EBITDA from ongoing operations by segment table in Note 11. The Company estimated the fair value of its investment in kaléo at June 30, 2020 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 earnings before interest, taxes, depreciation and amortization (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 20% at June 30, 2020 (versus 10% at December 31, 2019 and 15% at June 30, 2019) 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 June 30, 2020 was determined by weighting the EBITDA Multiple Method by 80% and the DCF Method by 20%, which was consistent with the weighting applied at December 31, 2019 and March 31, 2020. The heavier weighting towards the EBITDA Multiple Method was due to its heuristic nature versus the hypothetical nature of the projections used in the DCF Method. The DCF Method projections rely on numerous assumptions and Level 3 inputs, including estimating market growth, market share, pricing, net margins (after allowances for temporary discounts, prompt pay discounts, product returns, wholesaler fees, chargebacks, rebates and copays), selling expenses, R&D expenses, general and administrative expenses, income taxes on unlevered pretax income, working capital, capital expenditures and the risk-adjusted discount rate. 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. The table below provides a sensitivity analysis of the estimated fair value at June 30, 2020, of the Company’s investment in kaléo for changes in the EBITDA multiple used in applying the EBITDA Multiple Method and the changes in the weighting of the DCF Method. ($ Millions) EV-to-Adjusted EBITDA Multiple 5.0 x 6.0 x 7.0 x 8.0x 9.0x Weighting to DCF Method 50 % $ 60.9 $ 66.3 $ 71.7 $ 77.1 $ 82.4 40 % $ 58.4 $ 64.9 $ 71.4 $ 77.8 $ 84.3 30 % $ 56.0 $ 63.5 $ 71.0 $ 78.6 $ 86.1 20 % $ 53.5 $ 62.1 $ 70.7 $ 79.3 $ 87.9 10 % $ 51.0 $ 60.7 $ 70.4 $ 80.0 $ 89.7 0 % $ 48.5 $ 59.3 $ 70.0 $ 80.8 $ 91.5

Derivative Financial Instrument

Derivative Financial Instruments	6 Months Ended
	Jun. 30, 2020
Summary of Derivative Instruments [Abstract]
Derivative Financial Instruments	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 exist as part of ongoing business operations (primarily 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 recorded on the consolidated balance sheets are based upon Level 2 inputs. 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 $20.1 million (21.7 million pounds of aluminum) at June 30, 2020 and $20.2 million (19.6 million pounds of aluminum) at December 31, 2019. The table below summarizes the location and gross amounts of aluminum futures contract fair values (Level 2) in the consolidated balance sheets as of June 30, 2020 and December 31, 2019: June 30, 2020 December 31, 2019 (In thousands) Balance Sheet Fair Balance Sheet Fair Derivatives Designated as Hedging Instruments Asset derivatives: Aluminum futures contracts Accrued expenses $ 172 Accrued expenses $ 6 Liability derivatives: Aluminum futures contracts Accrued expenses (2,029) Accrued expenses (1,259) Net asset (liability) $ (1,857) $ (1,253) 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 table below summarizes the location and gross amounts of foreign currency forward contract fair values (Level 2) in the consolidated balance sheets as of June 30, 2020 and December 31, 2019: June 30, 2020 December 31, 2019 (In thousands) Balance Sheet Fair Balance Sheet Fair Derivatives Designated as Hedging Instruments Asset derivatives: Foreign currency forward contracts Prepaid expenses and other $ — Prepaid expenses and other $ 83 Liability derivatives: Foreign currency forward contracts Accrued expenses (4,058) Accrued expenses (935) Net asset (liability) $ (4,058) $ (852) 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 is annual net costs of 136 million Brazilian Real ("R$"). Terphane Ltda. has the following outstanding foreign exchange average forward rate contracts to purchase Brazilian Real and sell U.S. Dollars: USD Notional Amount (000s) Average Forward Rate Contracted on USD/BRL R$ Equivalent Amount (000s) Applicable Month Estimated % of Terphane Ltda. R$ Operating Cost Exposure Hedged $2,200 3.9326 R$8,652 Jul-20 76% $2,200 3.9413 R$8,671 Aug-20 77% $2,200 3.9495 R$8,689 Sep-20 77% $2,200 3.9579 R$8,707 Oct-20 77% $2,200 3.9660 R$8,725 Nov-20 77% $2,050 3.9653 R$8,129 Dec-20 72% $13,050 3.9520 R$51,573 76% 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. The pre-tax net fair value of the open forward contracts was a negative $3.5 million as of June 30, 2020. 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 six month periods ended June 30, 2020 and 2019 is summarized in the table below: (In thousands) Cash Flow Derivative Hedges Three Months Ended June 30, Aluminum Futures Contracts Foreign Currency Forwards 2020 2019 2020 2020 2019 2019 Amount of pretax gain (loss) recognized in other comprehensive income (loss) $ (1,201) $ (1,192) $ — $ (535) $ — $ 719 Location of gain (loss) reclassified from accumulated other comprehensive income (loss) into net income (effective portion) Cost of Cost of Cost of Selling, general & admin Cost of Selling, general & admin Amount of pretax gain (loss) reclassified from accumulated other comprehensive income (loss) to net income effective portion) $ (1,551) $ (606) $ 16 $ (1,798) $ 16 $ (369) Six Months Ended June 30, Aluminum Futures Contracts Foreign Currency Forwards 2020 2019 2020 2020 2019 2019 Amount of pre-tax gain (loss) recognized in other comprehensive income (loss) $ (2,795) $ (1,438) $ — $ (5,360) $ — $ (97) Location of gain (loss) reclassified from accumulated other comprehensive income (loss) into net income (effective portion) Cost of Cost of Cost of Selling, general & admin Cost of Selling, general & admin Amount of pre-tax gain (loss) reclassified from accumulated other comprehensive income (loss) to net income (effective portion) $ (2,191) $ (1,223) $ 31 $ (2,592) $ 31 $ (560) As of June 30, 2020, the Company expects $1.4 million of unrealized after-tax losses on derivative instruments reported in accumulated other comprehensive income (loss) to be reclassified to earnings within the next 12 months. For the three and six month periods ended June 30, 2020 and 2019, net gains or losses realized, from previously unrealized net gains or losses on hedges that had been discontinued, were not material.

Pension And Other Post-Retireme

Pension And Other Post-Retirement Benefits	6 Months Ended
	Jun. 30, 2020
Retirement Benefits [Abstract]
Pension And Other Post-Retirement Benefits	Tredegar sponsors a noncontributory defined benefit (pension) plan covering certain current and former U.S. employees. The plan for salaried and hourly employees currently in effect is based on a formula using the participant’s years of service and compensation or using the participant’s years of service and a dollar amount. The plan is closed to new participants and pay for active plan participants for benefit calculations was frozen as of December 31, 2007. 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 six month periods ended June 30, 2020 and 2019, are shown below: Pension Benefits Other Post-Retirement Benefits Three Months Ended June 30, Three Months Ended June 30, (In thousands) 2020 2019 2020 2019 Service cost $ — $ — $ 9 $ 8 Interest cost 2,535 3,068 60 73 Expected return on plan assets (2,804) (3,404) — — Amortization of prior service costs, (gains) losses and net transition asset 3,814 2,730 (47) (57) Net periodic benefit cost $ 3,545 $ 2,394 $ 22 $ 24 Pension Benefits Other Post-Retirement Benefits Six Months Ended June 30, Six Months Ended June 30, (In thousands) 2020 2019 2020 2019 Service cost $ — $ — $ 18 $ 16 Interest cost 5,070 6,135 120 146 Expected return on plan assets (5,608) (6,808) — — Amortization of prior service costs, (gains) losses and net transition asset 7,628 5,459 (94) (115) Net periodic benefit cost $ 7,090 $ 4,786 $ 44 $ 47 Pension and other postretirement liabilities were $105.6 million and $108.1 million at June 30, 2020 and December 31, 2019, respectively ($0.7 million included in “Accrued expenses” at June 30, 2020 and December 31, 2019, with the remainder included in “Pension and other postretirement benefit obligations, net” in the consolidated balance sheets). The Company’s total required pension contributions for 2020 are expected to be $12.3 million; however, pursuant to the Coronavirus Aid, Relief, and Economic Security Act (the "CARES Act"), the Company has elected to defer payment of $2.4 millionof total contributions until January 1, 2021. A $1.8 million pension plan contribution was made in January 2020 prior to the enactment of the CARES Act. Tredegar funds its other postretirement benefits on a claims-made basis; for 2020, the Company anticipates the amount will be consistent with amounts paid for the year ended December 31, 2019, or approximately $0.3 million.

Other Income (Expense), Net (No

Other Income (Expense), Net (Notes)	6 Months Ended
	Jun. 30, 2020
Other Income and Expenses [Abstract]
Other Income and Other Expense Disclosure [Text Block]	Other income (expense), net consists of the following: Three Months Ended June 30, Six Months Ended June 30, (In thousands) 2020 2019 2020 2019 Gain (loss) on investment in kaléo accounted for under fair value method $ 1,300 $ 7,100 $ (24,800) $ 24,182 COVID-19-related expenses 1 (1,294) — (1,294) — Other (19) (4) (131) 24 Total $ (13) $ 7,096 $ (26,225) $ 24,206 1.Costs associated with operating under COVID-19 conditions, include employee overtime expenses associated with absenteeism, personal protective equipment supplies and facility maintenance. The gain on investment in kaléo accounted for under fair value method shown above for the six months ended June 30, 2019, includes a cash dividend of $17.6 million from kaléo. See Note 7 for more details on the investment in kaléo.

Segment Reporting

Segment Reporting	6 Months Ended
	Jun. 30, 2020
Segment Reporting [Abstract]
Segment Reporting	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. 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. Earnings before interest, taxes, depreciation and amortization (“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”) 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 six months ended June 30, 2020 and 2019: Three Months Ended June 30, Six Months Ended June 30, (In thousands) 2020 2019 2020 2019 Net Sales Aluminum Extrusions $ 106,058 $ 136,757 $ 223,945 $ 275,804 PE Films 71,012 69,161 142,273 135,941 Flexible Packaging Films 34,104 33,443 64,678 67,062 Total net sales 211,174 239,361 430,896 478,807 Add back freight 7,464 8,887 16,044 17,907 Sales as shown in the Consolidated Statements of Income $ 218,638 $ 248,248 $ 446,940 $ 496,714 EBITDA from Ongoing Operations Aluminum Extrusions: Ongoing operations: EBITDA $ 13,279 $ 18,600 $ 24,956 $ 34,767 Depreciation & amortization (4,267) (4,082) (8,380) (8,164) EBIT 9,012 14,518 16,576 26,603 Plant shutdowns, asset impairments, restructurings and other (1,230) (17) (1,918) (57) Goodwill impairment — — (13,696) — PE Films: Ongoing operations: EBITDA 15,319 11,160 29,507 17,703 Depreciation & amortization (3,753) (3,394) (7,477) (6,986) EBIT 11,566 7,766 22,030 10,717 Plant shutdowns, asset impairments, restructurings and other (646) (1,523) (1,552) (2,901) Flexible Packaging Films: Ongoing operations: EBITDA 6,495 2,880 13,048 6,084 Depreciation & amortization (436) (363) (864) (707) EBIT 6,059 2,517 12,184 5,377 Plant shutdowns, asset impairments, restructurings and other (10) — (10) — Total 24,751 23,261 33,614 39,739 Interest income 24 48 76 107 Interest expense 548 1,263 1,104 2,495 Gain (loss) on investment in kaléo accounted for under fair value method 1,300 7,100 (24,800) 24,182 Stock option-based compensation costs 725 898 1,309 1,313 Corporate expenses, net 10,542 9,331 21,080 17,492 Income (loss) before income taxes 14,260 18,917 (14,603) 42,728 Income tax expense (benefit) 3,064 4,440 (3,477) 8,467 Net income (loss) $ 11,196 $ 14,477 $ (11,126) $ 34,261 The following table presents identifiable assets by segment at June 30, 2020 and December 31, 2019: (In thousands) June 30, 2020 December 31, 2019 Aluminum Extrusions $ 240,905 $ 265,027 PE Films 226,027 230,415 Flexible Packaging Films 66,011 74,016 Subtotal 532,943 569,458 General corporate 85,934 111,788 Cash and cash equivalents 39,930 31,422 Total $ 658,807 $ 712,668 The following tables disaggregate the Company’s revenue by geographic area and product group for the three and six months ended June 30, 2020 and 2019: Net Sales by Geographic Area (a) Three Months Ended June 30, Six Months Ended June 30, (In thousands) 2020 2019 2020 2019 United States $ 141,559 $ 162,788 $ 287,742 $ 335,042 Exports from the United States to: Asia 23,643 24,513 45,807 38,006 Latin America 2,078 2,670 5,212 5,537 Canada 1,854 5,872 6,752 9,477 Europe 1,562 1,517 3,063 2,877 Operations outside the United States: Brazil 25,739 27,582 51,687 55,721 The Netherlands 7,132 8,450 15,017 18,037 Hungary 5,751 5,162 12,355 11,996 India 1,856 807 3,261 1,884 China — — — 230 Total $ 211,174 $ 239,361 $ 430,896 $ 478,807 (a) Export sales relate primarily to PE Films. Operations outside the U.S. in The Netherlands, Hungary, China and India also relate to PE Films. Operations in Brazil are primarily related to Flexible Packaging Films, but also include PE Films operations. Sales from locations in The Netherlands and Hungary are primarily to customers located in Europe. 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 sold 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 $32.1 million in 2019, $10.0 million and $7.5 million in the second quarters of 2020 and 2019, respectively, and $19.3 millionand $12.7 million in the first six months of 2020 and 2019, respectively. Net Sales by Product Group Three Months Ended June 30, Six Months Ended June 30, (In thousands) 2020 2019 2020 2019 Aluminum Extrusions: Nonresidential building & construction $ 64,726 $ 69,019 $ 127,865 $ 138,657 Consumer durables 7,782 16,381 20,331 31,926 Automotive 5,572 12,496 15,043 25,123 Residential building & construction 9,052 10,278 18,867 21,950 Electrical 4,775 10,373 12,014 21,442 Machinery & equipment 7,630 9,471 15,566 19,394 Distribution 6,521 8,739 14,259 17,312 Subtotal 106,058 136,757 223,945 275,804 PE Films: Personal care materials 36,258 37,956 77,488 82,812 Surface protection films 31,699 29,253 60,052 49,142 LED lighting products & other films 3,055 1,952 4,733 3,987 Subtotal 71,012 69,161 142,273 135,941 Flexible Packaging Films 34,104 33,443 64,678 67,062 $ 211,174 $ 239,361 $ 430,896 $ 478,807

Income Taxes

Income Taxes	6 Months Ended
	Jun. 30, 2020
Income Tax Disclosure [Abstract]
Income Taxes	Tredegar recorded a tax benefit of $3.5 million on a pretax loss of $14.6 million in the first six months of 2020. Therefore, the effective tax rate in the first six months of 2020 was 23.8%, compared to 19.8% in the first six months of 2019. 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 six months of the year. The significant differences between the U.S. federal statutory rate and the effective income tax rate for the six months ended June 30, 2020 and 2019 are as follows: (In thousands, except percentages) 2020 2019 Six Months Ended June 30, Amount % Amount % Income tax (benefit) expense at federal statutory rate $ (3,066) 21.0 $ 8,972 21.0 Foreign tax incentives (2,630) 18.0 (1,074) (3.0) Changes in estimates related to prior year tax provision (592) 4.1 152 0.4 Research and development tax credit (487) 3.3 (255) (0.7) State taxes, net of federal income tax benefit (179) 1.2 468 1.1 Valuation allowance due to foreign losses and impairments (209) 1.4 (1,353) (3.7) Tax impact of dividend received — — (919) (2.2) Tax contingency accruals and tax settlements (148) 1.0 (154) (0.4) Foreign Derived Intangible Income (FDII) — — (445) (1.2) Valuation allowance for capital loss carry-forwards 40 (0.3) — — Non-deductible expenses 375 (2.6) 217 0.6 Stock-based compensation 247 (1.7) (141) (0.4) U.S. Tax on Foreign Branch Income 534 (3.7) 1,808 5.0 Foreign rate differences 2,510 (17.0) 1,191 3.3 Unremitted earnings from foreign operations 128 (0.9) — — Income tax expense (benefit) at effective income tax rate $ (3,477) 23.8 $ 8,467 19.8 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 $2.6 million and $1.1 million in the first six months of 2020 and 2019, 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 2016. During the six months ended June 30, 2020, new legislation was enacted and new IRS guidance was issued to provide relief to businesses in response to COVID-19. We have evaluated the tax provisions included in legislation such as the Coronavirus Aid, Relief, and Economic Security Act, as well as recent IRS guidance and we do not expect it to have a significant impact on our financial position, results of operations or cash flows.

New Accounting Pronouncements

New Accounting Pronouncements	6 Months Ended
	Jun. 30, 2020
New Accounting Pronouncements and Changes in Accounting Principles [Abstract]
New Accounting Pronouncements	New accounting pronouncements adopted in 2020: ASU 2016-13, FINANCIAL INSTRUMENTS - CREDIT LOSSES (TOPIC 326) See Note 1 for details on the adoption of ASU 2016-13. ASU 2018-13, FAIR VALUE MEASUREMENT (TOPIC 820) In August 2018, the FASB issued ASU 2018-13, which amended the fair value measurement guidance by removing and modifying certain disclosure requirements, while also adding new disclosure requirements. The amendments on changes in unrealized gains and losses, the range and weighted average of significant unobservable inputs used to develop Level 3 fair value measurements and the narrative description of measurement uncertainty should be applied prospectively for only the most recent interim or annual period presented in the initial fiscal year of adoption. All other amendments should be applied retrospectively to all periods presented upon their effective date. The amendments are effective for all companies for fiscal years, and interim periods within those years, beginning after December 15, 2019. The Company adopted all disclosure requirements in the first quarter of 2020, with no material impact on the Company’s consolidated financial statements. Accounting Standards Not Yet Implemented: ASU 2019-12, INCOME TAXES (TOPIC 740)

Plants Shutdowns, Asset Impai_2

Plants Shutdowns, Asset Impairments, Restructurings And Other (Tables)	6 Months Ended
	Jun. 30, 2020
Restructuring Charges [Abstract]
Schedule Of Accrued Expenses Associated With Asset Impairments And Exit And Disposal Activities	A reconciliation of the beginning and ending balances of accrued expenses associated with exit and disposal activities and charges associated with asset impairments and reported as “Asset impairments and costs associated with exit and disposal activities, net of adjustments” in the consolidated statements of income for the six months ended June 30, 2020 is as follows: (In thousands) Severance Asset Impairments Other Total Balance at January 1, 2020 $ 1,294 $ — $ 86 $ 1,380 Changes in 2020: Charges: Lake Zurich plant shutdown 168 11 325 504 Other restructuring charges 77 — 16 93 245 11 341 597 Cash payments (1,148) — (386) (1,534) Charges against assets — (11) — (11) Balance at June 30, 2020 $ 391 $ — $ 41 $ 432

Inventories (Tables)

Inventories (Tables)	6 Months Ended
	Jun. 30, 2020
Inventory, Net [Abstract]
Schedule of Inventory, Current	The components of inventories are as follows: (In thousands) June 30, 2020 December 31, 2019 Finished goods $ 19,565 $ 24,504 Work-in-process 13,123 12,328 Raw materials 30,482 24,735 Stores, supplies and other 22,048 19,813 Total $ 85,218 $ 81,380

Earnings Per Share (Tables)

Earnings Per Share (Tables)	6 Months Ended
	Jun. 30, 2020
Earnings Per Share [Abstract]
Schedule of Earnings Per Share, Basic and Diluted	Diluted earnings per share is computed by dividing net income by the weighted average common and potentially dilutive common equivalent shares outstanding, determined as follows: Three Months Ended Six Months Ended June 30, June 30, (In thousands) 2020 2019 2020 2019 Weighted average shares outstanding used to compute basic earnings per share 33,435 33,270 33,374 33,197 Incremental dilutive shares attributable to stock options and restricted stock 1 8 — 6 Shares used to compute diluted earnings per share 33,436 33,278 33,374 33,203

Accumulated Other Comprehensi_2

Accumulated Other Comprehensive Income (Loss) (Tables)	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Other Comprehensive Income (Loss), Net of Tax [Abstract]
Schedule Of After-Tax Changes In Accumulated Other Comprehensive Income (Loss)			The following table summarizes the after-tax changes in accumulated other comprehensive income (loss) for the six months ended June 30, 2020: (In thousands) Foreign Gain (loss) on Pension and Total Beginning balance, January 1, 2020 $ (100,663) $ (1,307) $ (95,681) $ (197,651) Other comprehensive income (loss) before reclassifications (12,003) (6,242) — (18,245) Amounts reclassified from accumulated other comprehensive income (loss) — 3,725 5,862 9,587 Net other comprehensive income (loss) - current period (12,003) (2,517) 5,862 (8,658) Ending balance, June 30, 2020 $ (112,666) $ (3,824) $ (89,819) $ (206,309)	The following table summarizes the after-tax changes in accumulated other comprehensive income (loss) for the six months ended June 30, 2019: (In thousands) Foreign Gain (loss) on Pension and Total Beginning balance, January 1, 2019 $ (96,940) $ (1,601) $ (81,446) $ (179,987) Other comprehensive income (loss) before reclassifications (283) (1,218) — (1,501) Amounts reclassified from accumulated other comprehensive income (loss) — 1,486 4,158 5,644 Net other comprehensive income (loss) - current period (283) 268 4,158 4,143 Ending balance, June 30, 2019 $ (97,223) $ (1,333) $ (77,288) $ (175,844)
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 June 30, 2020 are summarized as follows: (In thousands) Amount Location of gain Gain (loss) on derivative financial instruments: Aluminum future contracts, before taxes $ (1,551) Cost of sales Foreign currency forward contracts, before taxes (1,798) Selling, general & administrative Foreign currency forward contracts, before taxes 16 Cost of sales Total, before taxes (3,333) Income tax expense (benefit) (721) Income tax expense (benefit) Total, net of tax $ (2,612) Amortization of pension and other post-retirement benefits: Actuarial gain (loss) and prior service costs, before taxes $ (3,766) (a) Income tax expense (benefit) (835) 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 (loss) for the six months ended June 30, 2020 are summarized as follows: (In thousands) Amount Location of gain Gain (loss) on derivative financial instruments: Aluminum future contracts, before taxes $ (2,191) Cost of sales Foreign currency forward contracts, before taxes (2,592) Selling, general & administrative Foreign currency forward contracts, before taxes 31 Cost of sales Total, before taxes (4,752) Income tax expense (benefit) (1,027) Income tax expense (benefit) Total, net of tax $ (3,725) Amortization of pension and other post-retirement benefits: Actuarial gain (loss) and prior service costs, before taxes $ (7,533) (a) Income tax expense (benefit) (1,671) Income tax expense (benefit) Total, net of tax $ (5,862) (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 June 30, 2019 are summarized as follows: (In thousands) Amount Location of gain Gain (loss) on derivative financial instruments: Aluminum future contracts, before taxes $ (606) Cost of sales Foreign currency forward contracts, before taxes (369) Selling, general & administrative Foreign currency forward contracts, before taxes 16 Cost of sales Total, before taxes (959) Income tax expense (benefit) (131) Income tax expense (benefit) Total, net of tax $ (828) Amortization of pension and other post-retirement benefits: Actuarial gain (loss) and prior service costs, before taxes $ (2,672) (a) Income tax expense (benefit) (593) Income tax expense (benefit) Total, net of tax $ (2,079) (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 six months ended June 30, 2019 are summarized as follows: (In thousands) Amount Location of gain Gain (loss) on derivative financial instruments: Aluminum future contracts, before taxes $ (1,223) Cost of sales Foreign currency forward contracts, before taxes (560) Selling, general & administrative Foreign currency forward contracts, before taxes 31 Cost of sales Total, before taxes (1,752) Income tax expense (benefit) (266) Income tax expense (benefit) Total, net of tax $ (1,486) Amortization of pension and other post-retirement benefits: Actuarial gain (loss) and prior service costs, before taxes $ (5,343) (a) Income tax expense (benefit) (1,185) Income tax expense (benefit) Total, net of tax $ (4,158) (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 kaleo sensitivity t

Investments kaleo sensitivity table (Tables)	6 Months Ended
	Jun. 30, 2020
Investments at Fair Value [Abstract]
Fair Value Measurements, Sensitivity Analysis, Description	The table below provides a sensitivity analysis of the estimated fair value at June 30, 2020, of the Company’s investment in kaléo for changes in the EBITDA multiple used in applying the EBITDA Multiple Method and the changes in the weighting of the DCF Method. ($ Millions) EV-to-Adjusted EBITDA Multiple 5.0 x 6.0 x 7.0 x 8.0x 9.0x Weighting to DCF Method 50 % $ 60.9 $ 66.3 $ 71.7 $ 77.1 $ 82.4 40 % $ 58.4 $ 64.9 $ 71.4 $ 77.8 $ 84.3 30 % $ 56.0 $ 63.5 $ 71.0 $ 78.6 $ 86.1 20 % $ 53.5 $ 62.1 $ 70.7 $ 79.3 $ 87.9 10 % $ 51.0 $ 60.7 $ 70.4 $ 80.0 $ 89.7 0 % $ 48.5 $ 59.3 $ 70.0 $ 80.8 $ 91.5

Derivative Financial Instrume_2

Derivative Financial Instruments (Tables)	6 Months Ended
	Jun. 30, 2020
Derivatives, Fair Value [Line Items]
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 six month periods ended June 30, 2020 and 2019 is summarized in the table below: (In thousands) Cash Flow Derivative Hedges Three Months Ended June 30, Aluminum Futures Contracts Foreign Currency Forwards 2020 2019 2020 2020 2019 2019 Amount of pretax gain (loss) recognized in other comprehensive income (loss) $ (1,201) $ (1,192) $ — $ (535) $ — $ 719 Location of gain (loss) reclassified from accumulated other comprehensive income (loss) into net income (effective portion) Cost of Cost of Cost of Selling, general & admin Cost of Selling, general & admin Amount of pretax gain (loss) reclassified from accumulated other comprehensive income (loss) to net income effective portion) $ (1,551) $ (606) $ 16 $ (1,798) $ 16 $ (369) Six Months Ended June 30, Aluminum Futures Contracts Foreign Currency Forwards 2020 2019 2020 2020 2019 2019 Amount of pre-tax gain (loss) recognized in other comprehensive income (loss) $ (2,795) $ (1,438) $ — $ (5,360) $ — $ (97) Location of gain (loss) reclassified from accumulated other comprehensive income (loss) into net income (effective portion) Cost of Cost of Cost of Selling, general & admin Cost of Selling, general & admin Amount of pre-tax gain (loss) reclassified from accumulated other comprehensive income (loss) to net income (effective portion) $ (2,191) $ (1,223) $ 31 $ (2,592) $ 31 $ (560)
Derivative Instruments and Hedging Activities Disclosure [Text Block]	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 exist as part of ongoing business operations (primarily 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 recorded on the consolidated balance sheets are based upon Level 2 inputs. 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 $20.1 million (21.7 million pounds of aluminum) at June 30, 2020 and $20.2 million (19.6 million pounds of aluminum) at December 31, 2019. The table below summarizes the location and gross amounts of aluminum futures contract fair values (Level 2) in the consolidated balance sheets as of June 30, 2020 and December 31, 2019: June 30, 2020 December 31, 2019 (In thousands) Balance Sheet Fair Balance Sheet Fair Derivatives Designated as Hedging Instruments Asset derivatives: Aluminum futures contracts Accrued expenses $ 172 Accrued expenses $ 6 Liability derivatives: Aluminum futures contracts Accrued expenses (2,029) Accrued expenses (1,259) Net asset (liability) $ (1,857) $ (1,253) 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 table below summarizes the location and gross amounts of foreign currency forward contract fair values (Level 2) in the consolidated balance sheets as of June 30, 2020 and December 31, 2019: June 30, 2020 December 31, 2019 (In thousands) Balance Sheet Fair Balance Sheet Fair Derivatives Designated as Hedging Instruments Asset derivatives: Foreign currency forward contracts Prepaid expenses and other $ — Prepaid expenses and other $ 83 Liability derivatives: Foreign currency forward contracts Accrued expenses (4,058) Accrued expenses (935) Net asset (liability) $ (4,058) $ (852) 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 is annual net costs of 136 million Brazilian Real ("R$"). Terphane Ltda. has the following outstanding foreign exchange average forward rate contracts to purchase Brazilian Real and sell U.S. Dollars: USD Notional Amount (000s) Average Forward Rate Contracted on USD/BRL R$ Equivalent Amount (000s) Applicable Month Estimated % of Terphane Ltda. R$ Operating Cost Exposure Hedged $2,200 3.9326 R$8,652 Jul-20 76% $2,200 3.9413 R$8,671 Aug-20 77% $2,200 3.9495 R$8,689 Sep-20 77% $2,200 3.9579 R$8,707 Oct-20 77% $2,200 3.9660 R$8,725 Nov-20 77% $2,050 3.9653 R$8,129 Dec-20 72% $13,050 3.9520 R$51,573 76% 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. The pre-tax net fair value of the open forward contracts was a negative $3.5 million as of June 30, 2020. 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 six month periods ended June 30, 2020 and 2019 is summarized in the table below: (In thousands) Cash Flow Derivative Hedges Three Months Ended June 30, Aluminum Futures Contracts Foreign Currency Forwards 2020 2019 2020 2020 2019 2019 Amount of pretax gain (loss) recognized in other comprehensive income (loss) $ (1,201) $ (1,192) $ — $ (535) $ — $ 719 Location of gain (loss) reclassified from accumulated other comprehensive income (loss) into net income (effective portion) Cost of Cost of Cost of Selling, general & admin Cost of Selling, general & admin Amount of pretax gain (loss) reclassified from accumulated other comprehensive income (loss) to net income effective portion) $ (1,551) $ (606) $ 16 $ (1,798) $ 16 $ (369) Six Months Ended June 30, Aluminum Futures Contracts Foreign Currency Forwards 2020 2019 2020 2020 2019 2019 Amount of pre-tax gain (loss) recognized in other comprehensive income (loss) $ (2,795) $ (1,438) $ — $ (5,360) $ — $ (97) Location of gain (loss) reclassified from accumulated other comprehensive income (loss) into net income (effective portion) Cost of Cost of Cost of Selling, general & admin Cost of Selling, general & admin Amount of pre-tax gain (loss) reclassified from accumulated other comprehensive income (loss) to net income (effective portion) $ (2,191) $ (1,223) $ 31 $ (2,592) $ 31 $ (560) As of June 30, 2020, the Company expects $1.4 million of unrealized after-tax losses on derivative instruments reported in accumulated other comprehensive income (loss) to be reclassified to earnings within the next 12 months. For the three and six month periods ended June 30, 2020 and 2019, net gains or losses realized, from previously unrealized net gains or losses on hedges that had been discontinued, were not material.
Derivative, Description of Hedged Item	Terphane Ltda. has the following outstanding foreign exchange average forward rate contracts to purchase Brazilian Real and sell U.S. Dollars: USD Notional Amount (000s) Average Forward Rate Contracted on USD/BRL R$ Equivalent Amount (000s) Applicable Month Estimated % of Terphane Ltda. R$ Operating Cost Exposure Hedged $2,200 3.9326 R$8,652 Jul-20 76% $2,200 3.9413 R$8,671 Aug-20 77% $2,200 3.9495 R$8,689 Sep-20 77% $2,200 3.9579 R$8,707 Oct-20 77% $2,200 3.9660 R$8,725 Nov-20 77% $2,050 3.9653 R$8,129 Dec-20 72% $13,050 3.9520 R$51,573 76%
Aluminum Futures Contracts
Derivatives, Fair Value [Line Items]
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 June 30, 2020 and December 31, 2019: June 30, 2020 December 31, 2019 (In thousands) Balance Sheet Fair Balance Sheet Fair Derivatives Designated as Hedging Instruments Asset derivatives: Aluminum futures contracts Accrued expenses $ 172 Accrued expenses $ 6 Liability derivatives: Aluminum futures contracts Accrued expenses (2,029) Accrued expenses (1,259) Net asset (liability) $ (1,857) $ (1,253)
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 June 30, 2020 and December 31, 2019: June 30, 2020 December 31, 2019 (In thousands) Balance Sheet Fair Balance Sheet Fair Derivatives Designated as Hedging Instruments Asset derivatives: Aluminum futures contracts Accrued expenses $ 172 Accrued expenses $ 6 Liability derivatives: Aluminum futures contracts Accrued expenses (2,029) Accrued expenses (1,259) Net asset (liability) $ (1,857) $ (1,253)
Foreign Currency Forward Contracts
Derivatives, Fair Value [Line Items]
Summary Of Location And Fair Value Of Derivative Financial Instruments	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 June 30, 2020 and December 31, 2019: June 30, 2020 December 31, 2019 (In thousands) Balance Sheet Fair Balance Sheet Fair Derivatives Designated as Hedging Instruments Asset derivatives: Foreign currency forward contracts Prepaid expenses and other $ — Prepaid expenses and other $ 83 Liability derivatives: Foreign currency forward contracts Accrued expenses (4,058) Accrued expenses (935) Net asset (liability) $ (4,058) $ (852)
Schedule of Derivative Instruments in Statement of Financial Position, Fair Value [Table Text Block]	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 June 30, 2020 and December 31, 2019: June 30, 2020 December 31, 2019 (In thousands) Balance Sheet Fair Balance Sheet Fair Derivatives Designated as Hedging Instruments Asset derivatives: Foreign currency forward contracts Prepaid expenses and other $ — Prepaid expenses and other $ 83 Liability derivatives: Foreign currency forward contracts Accrued expenses (4,058) Accrued expenses (935) Net asset (liability) $ (4,058) $ (852)

Pension And Other Post-Retire_2

Pension And Other Post-Retirement Benefits (Tables)	6 Months Ended
	Jun. 30, 2020
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 six month periods ended June 30, 2020 and 2019, are shown below: Pension Benefits Other Post-Retirement Benefits Three Months Ended June 30, Three Months Ended June 30, (In thousands) 2020 2019 2020 2019 Service cost $ — $ — $ 9 $ 8 Interest cost 2,535 3,068 60 73 Expected return on plan assets (2,804) (3,404) — — Amortization of prior service costs, (gains) losses and net transition asset 3,814 2,730 (47) (57) Net periodic benefit cost $ 3,545 $ 2,394 $ 22 $ 24 Pension Benefits Other Post-Retirement Benefits Six Months Ended June 30, Six Months Ended June 30, (In thousands) 2020 2019 2020 2019 Service cost $ — $ — $ 18 $ 16 Interest cost 5,070 6,135 120 146 Expected return on plan assets (5,608) (6,808) — — Amortization of prior service costs, (gains) losses and net transition asset 7,628 5,459 (94) (115) Net periodic benefit cost $ 7,090 $ 4,786 $ 44 $ 47

Other Income (Expense), Net Oth

Other Income (Expense), Net Other Income (Expense), Net Summary Table (Tables)	6 Months Ended
	Jun. 30, 2020
Other Income and Expenses [Abstract]
Schedule of Other Nonoperating Income (Expense) [Table Text Block]	Three Months Ended June 30, Six Months Ended June 30, (In thousands) 2020 2019 2020 2019 Gain (loss) on investment in kaléo accounted for under fair value method $ 1,300 $ 7,100 $ (24,800) $ 24,182 COVID-19-related expenses 1 (1,294) — (1,294) — Other (19) (4) (131) 24 Total $ (13) $ 7,096 $ (26,225) $ 24,206 1.Costs associated with operating under COVID-19 conditions, include employee overtime expenses associated with absenteeism, personal protective equipment supplies and facility maintenance.

Segment Reporting (Tables)

Segment Reporting (Tables)	6 Months Ended
	Jun. 30, 2020
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 six months ended June 30, 2020 and 2019: Three Months Ended June 30, Six Months Ended June 30, (In thousands) 2020 2019 2020 2019 Net Sales Aluminum Extrusions $ 106,058 $ 136,757 $ 223,945 $ 275,804 PE Films 71,012 69,161 142,273 135,941 Flexible Packaging Films 34,104 33,443 64,678 67,062 Total net sales 211,174 239,361 430,896 478,807 Add back freight 7,464 8,887 16,044 17,907 Sales as shown in the Consolidated Statements of Income $ 218,638 $ 248,248 $ 446,940 $ 496,714 EBITDA from Ongoing Operations Aluminum Extrusions: Ongoing operations: EBITDA $ 13,279 $ 18,600 $ 24,956 $ 34,767 Depreciation & amortization (4,267) (4,082) (8,380) (8,164) EBIT 9,012 14,518 16,576 26,603 Plant shutdowns, asset impairments, restructurings and other (1,230) (17) (1,918) (57) Goodwill impairment — — (13,696) — PE Films: Ongoing operations: EBITDA 15,319 11,160 29,507 17,703 Depreciation & amortization (3,753) (3,394) (7,477) (6,986) EBIT 11,566 7,766 22,030 10,717 Plant shutdowns, asset impairments, restructurings and other (646) (1,523) (1,552) (2,901) Flexible Packaging Films: Ongoing operations: EBITDA 6,495 2,880 13,048 6,084 Depreciation & amortization (436) (363) (864) (707) EBIT 6,059 2,517 12,184 5,377 Plant shutdowns, asset impairments, restructurings and other (10) — (10) — Total 24,751 23,261 33,614 39,739 Interest income 24 48 76 107 Interest expense 548 1,263 1,104 2,495 Gain (loss) on investment in kaléo accounted for under fair value method 1,300 7,100 (24,800) 24,182 Stock option-based compensation costs 725 898 1,309 1,313 Corporate expenses, net 10,542 9,331 21,080 17,492 Income (loss) before income taxes 14,260 18,917 (14,603) 42,728 Income tax expense (benefit) 3,064 4,440 (3,477) 8,467 Net income (loss) $ 11,196 $ 14,477 $ (11,126) $ 34,261
Schedule Of Identifiable Assets By Segment	The following table presents identifiable assets by segment at June 30, 2020 and December 31, 2019: (In thousands) June 30, 2020 December 31, 2019 Aluminum Extrusions $ 240,905 $ 265,027 PE Films 226,027 230,415 Flexible Packaging Films 66,011 74,016 Subtotal 532,943 569,458 General corporate 85,934 111,788 Cash and cash equivalents 39,930 31,422 Total $ 658,807 $ 712,668
Disaggregation of Revenue [Table Text Block]	The following tables disaggregate the Company’s revenue by geographic area and product group for the three and six months ended June 30, 2020 and 2019: Net Sales by Geographic Area (a) Three Months Ended June 30, Six Months Ended June 30, (In thousands) 2020 2019 2020 2019 United States $ 141,559 $ 162,788 $ 287,742 $ 335,042 Exports from the United States to: Asia 23,643 24,513 45,807 38,006 Latin America 2,078 2,670 5,212 5,537 Canada 1,854 5,872 6,752 9,477 Europe 1,562 1,517 3,063 2,877 Operations outside the United States: Brazil 25,739 27,582 51,687 55,721 The Netherlands 7,132 8,450 15,017 18,037 Hungary 5,751 5,162 12,355 11,996 India 1,856 807 3,261 1,884 China — — — 230 Total $ 211,174 $ 239,361 $ 430,896 $ 478,807 (a) Export sales relate primarily to PE Films. Operations outside the U.S. in The Netherlands, Hungary, China and India also relate to PE Films. Operations in Brazil are primarily related to Flexible Packaging Films, but also include PE Films operations. Sales from locations in The Netherlands and Hungary are primarily to customers located in Europe. 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 sold 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 $32.1 million in 2019, $10.0 million and $7.5 million in the second quarters of 2020 and 2019, respectively, and $19.3 millionand $12.7 million in the first six months of 2020 and 2019, respectively. Net Sales by Product Group Three Months Ended June 30, Six Months Ended June 30, (In thousands) 2020 2019 2020 2019 Aluminum Extrusions: Nonresidential building & construction $ 64,726 $ 69,019 $ 127,865 $ 138,657 Consumer durables 7,782 16,381 20,331 31,926 Automotive 5,572 12,496 15,043 25,123 Residential building & construction 9,052 10,278 18,867 21,950 Electrical 4,775 10,373 12,014 21,442 Machinery & equipment 7,630 9,471 15,566 19,394 Distribution 6,521 8,739 14,259 17,312 Subtotal 106,058 136,757 223,945 275,804 PE Films: Personal care materials 36,258 37,956 77,488 82,812 Surface protection films 31,699 29,253 60,052 49,142 LED lighting products & other films 3,055 1,952 4,733 3,987 Subtotal 71,012 69,161 142,273 135,941 Flexible Packaging Films 34,104 33,443 64,678 67,062 $ 211,174 $ 239,361 $ 430,896 $ 478,807

Income Taxes (Tables)

Income Taxes (Tables)	6 Months Ended
	Jun. 30, 2020
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 six months ended June 30, 2020 and 2019 are as follows: (In thousands, except percentages) 2020 2019 Six Months Ended June 30, Amount % Amount % Income tax (benefit) expense at federal statutory rate $ (3,066) 21.0 $ 8,972 21.0 Foreign tax incentives (2,630) 18.0 (1,074) (3.0) Changes in estimates related to prior year tax provision (592) 4.1 152 0.4 Research and development tax credit (487) 3.3 (255) (0.7) State taxes, net of federal income tax benefit (179) 1.2 468 1.1 Valuation allowance due to foreign losses and impairments (209) 1.4 (1,353) (3.7) Tax impact of dividend received — — (919) (2.2) Tax contingency accruals and tax settlements (148) 1.0 (154) (0.4) Foreign Derived Intangible Income (FDII) — — (445) (1.2) Valuation allowance for capital loss carry-forwards 40 (0.3) — — Non-deductible expenses 375 (2.6) 217 0.6 Stock-based compensation 247 (1.7) (141) (0.4) U.S. Tax on Foreign Branch Income 534 (3.7) 1,808 5.0 Foreign rate differences 2,510 (17.0) 1,191 3.3 Unremitted earnings from foreign operations 128 (0.9) — — Income tax expense (benefit) at effective income tax rate $ (3,477) 23.8 $ 8,467 19.8

Basis Of Presentation Trade nam

Basis Of Presentation Trade name accelerated amortization (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Schedule of Trade Name Accelerated Amortization [Line Items]
Amortization of identifiable intangibles	$ 753	$ 890	$ 1,511	$ 1,782

Basis Of Presentation - Account

Basis Of Presentation - Accounts and Other Receivables (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Jun. 30, 2020	Dec. 31, 2019	Jun. 30, 2019
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts Receivable, before Allowance for Credit Loss, Current		$ 99,520	$ 106,153
Other Receivables		4,323	4,441
Allowance for Doubtful Accounts, Premiums and Other Receivables		3,383	3,036
Accounts Receivable, Change in Method, Credit Loss Expense (Reversal)	$ 200
Receivables, Net, Current		100,460	107,558
Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts Receivable, after Allowance for Credit Loss		100,460	107,558	$ 100,500
Receivables, Net, Current		$ 103,843	$ 110,594

Impairment (Details)

Impairment (Details) - USD ($) $ in Thousands	3 Months Ended			6 Months Ended
	Jun. 30, 2020	Mar. 31, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Impaired Long-Lived Assets Held and Used [Line Items]
Goodwill, Impairment Loss	$ 0		$ 0	$ (13,696)	$ 0
Aluminum Extrusions [Member]
Impaired Long-Lived Assets Held and Used [Line Items]
Goodwill, Impairment Loss	$ 0		$ 0	$ 13,696	$ 0
AACOA | Aluminum Extrusions [Member]
Impaired Long-Lived Assets Held and Used [Line Items]
Goodwill, Impairment Loss		$ (13,700)
Goodwill, Impairment Loss, Net of Tax		$ 10,500

Plants Shutdowns, Asset Impai_3

Plants Shutdowns, Asset Impairments, Restructurings And Other (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended		18 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2020	Dec. 31, 2019
Restructuring Cost and Reserve [Line Items]
Asset impairments and costs associated with exit and disposal activities, net of adjustments	$ 136	$ 1,075	$ 597	$ 2,131
Pretax charges for severance and other employee-related costs			245
Loss on asset impairments and divestitures			0	522
Other Restructuring Costs			341
Other Non-Operating and Non-Recurring Charges [Abstract]
Unrealized gain (loss) on investment under fair value method			24,800	(6,600)
Gain (Loss) on Disposition of Assets			0	(11)
Payments for Restructuring			(1,534)
Goodwill, Impairment Loss	0	0	13,696	0
Restructuring Reserve	432		$ 432			$ 1,380
Losses Associated With Plant Shutdowns Asset Impairments And Restructurings Unusual Items Gains From Sale For Assets And Other			Since July 2019, the Company planned to close its PE Films manufacturing facility in Lake Zurich, Illinois (“Lake Zurich plant shutdown”). In March 2020, this facility was shut down and the production of elastic materials it previously produced was transferred to the new elastic production line at Terre Haute, Indiana. As a result of the Lake Zurich plant shutdown, the Company expects to recognize overall pre-tax cash costs of $6.9 million comprised of (i) customer-related costs ($0.7 million), (ii) severance and other employee related costs ($1.1 million), and (iii) asset disposal and other cash costs ($5.1 million). In addition, the Company expects overall non-cash asset write-offs and accelerated depreciation of $1.3 million. Total expenses associated with the Lake Zurich plant shutdown are $2.9 million since project inception. Cash expenditures were $0.7 million in the six months ended June 30, 2020. The Company anticipates that the Lake Zurich plant shutdown will be completed by the end of 2020 and that the sale of real property will occur sometime thereafter. A reconciliation of the beginning and ending balances of accrued expenses associated with exit and disposal activities and charges associated with asset impairments and reported as “Asset impairments and costs associated with exit and disposal activities, net of adjustments” in the consolidated statements of income for the six months ended June 30, 2020 is as follows: (In thousands) Severance Asset Impairments Other Total Balance at January 1, 2020 $ 1,294 $ — $ 86 $ 1,380 Changes in 2020: Charges: Lake Zurich plant shutdown 168 11 325 504 Other restructuring charges 77 — 16 93 245 11 341 597 Cash payments (1,148) — (386) (1,534) Charges against assets — (11) — (11) Balance at June 30, 2020 $ 391 $ — $ 41 $ 432
kaleo
Other Non-Operating and Non-Recurring Charges [Abstract]
Unrealized gain (loss) on investment under fair value method	1,300	7,100	$ (24,800)	(24,182)
Unrealized Gain Loss On Investments Net Of Tax	(900)		19,500	19,900
Other Interest and Dividend Income		17,600		17,600
PE Films
Other Non-Operating and Non-Recurring Charges [Abstract]
EBITDA	(646)	(1,523)	(1,552)	(2,901)
Flexible Packaging Films [Member] [Domain]
Other Non-Operating and Non-Recurring Charges [Abstract]
EBITDA	(10)	0	(10)	0
Aluminum Extrusions [Member]
Other Non-Operating and Non-Recurring Charges [Abstract]
Goodwill, Impairment Loss	0	0	(13,696)	0
EBITDA	(1,230)	$ (17)	(1,918)	$ (57)
Severance
Restructuring Cost and Reserve [Line Items]
Pretax charges for severance and other employee-related costs			77
Other Non-Operating and Non-Recurring Charges [Abstract]
Payments for Restructuring			16
Restructuring Reserve	$ 391		391			$ 1,294
Personal Care Materials [Member] | FilmProductsManufacturingFacilityInLakeZurichIllinois [Member] | Other Restructuring [Member] | PE Films
Restructuring Cost and Reserve [Line Items]
Other Restructuring Costs after Taxes			2,900
Pretax charges for severance and other employee-related costs			168		$ 1,100
Accelerated Depreciation Expense					1,300
Other Restructuring Costs			325		5,100
Other Plant Consolidation Expenses - Cost of Goods Sold					700
Other Non-Operating and Non-Recurring Charges [Abstract]
Restructuring, Settlement and Impairment Provisions					$ 6,900
Payments for Restructuring			$ 700

Plants Shutdowns, Asset Impai_4

Plants Shutdowns, Asset Impairments, Restructurings And Other (Schedule Of Accrued Expenses Associated With Asset Impairments And Exit And Disposal Activities) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended		18 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2020
Restructuring Cost and Reserve [Line Items]
Gain (loss) on investment in kaléo accounted for under fair value method			$ (24,800)	$ 6,600
Severance Costs			245
Losses Associated With Plant Shutdowns Asset Impairments Restructurings Unusual Items Gains Losses From Sale Of Assets Other Items			11
Other Restructuring Costs			341
Restructuring and Related Cost, Incurred Cost			597
Restructuring Reserve [Roll Forward]
Balance at January 1, 2020			1,380
Cash payments			1,534
Charges against assets			(11)
Restructuring Reserve, Ending Balance	$ 432		432
Severance
Restructuring Cost and Reserve [Line Items]
Severance Costs			77
Losses Associated With Plant Shutdowns Asset Impairments Restructurings Unusual Items Gains Losses From Sale Of Assets Other Items			0
Restructuring Reserve [Roll Forward]
Balance at January 1, 2020			1,294
Cash payments			(16)
Charges against assets			0
Restructuring Reserve, Ending Balance	391		391
Long Lived Asset Impairment [Member]
Restructuring Reserve [Roll Forward]
Balance at January 1, 2020			0
Cash payments			0
Charges against assets			(11)
Restructuring Reserve, Ending Balance	0		0
Other
Restructuring Cost and Reserve [Line Items]
Severance Costs			(1,148)
Restructuring Reserve [Roll Forward]
Balance at January 1, 2020			86
Cash payments			386
Charges against assets			0
Restructuring Reserve, Ending Balance	41		41
PE Films | Other Restructuring [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Incurred Cost			93
kaleo [Member]
Restructuring Cost and Reserve [Line Items]
Gain (loss) on investment in kaléo accounted for under fair value method	$ (1,300)	$ (7,100)	24,800	$ 24,182
Personal Care Materials [Member] | PE Films | FilmProductsManufacturingFacilityInLakeZurichIllinois [Member] | Other Restructuring [Member]
Restructuring Cost and Reserve [Line Items]
Severance Costs			168		$ 1,100
Losses Associated With Plant Shutdowns Asset Impairments Restructurings Unusual Items Gains Losses From Sale Of Assets Other Items			11
Other Restructuring Costs			325		$ 5,100
Restructuring and Related Cost, Incurred Cost			504
Restructuring Reserve [Roll Forward]
Cash payments			$ (700)

Inventories (Schedule Of Compon

Inventories (Schedule Of Components Of Inventories) (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Inventory, Net [Abstract]
Finished goods	$ 19,565	$ 24,504
Work-in-process	13,123	12,328
Raw materials	30,482	24,735
Stores, supplies and other	22,048	19,813
Total	$ 85,218	$ 81,380

Earnings Per Share (Narrative)

Earnings Per Share (Narrative) (Details) - shares	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Earnings Per Share [Abstract]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	1,567,709	1,474,762	1,125,203	1,225,333

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		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Earnings Per Share [Abstract]
Weighted average shares outstanding used to compute basic earnings per share	33,435	33,270	33,374	33,197
Incremental dilutive shares attributable to stock options and restricted stock	1	8	0	6
Shares used to compute diluted earnings per share	33,436	33,278	33,374	33,203

Maturity of Lease Liability Tab

Maturity of Lease Liability Table (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Leases [Abstract]
Operating Lease, Right-of-Use Asset	$ 17,879	$ 19,220
Operating Lease, Liability, Noncurrent	16,305	17,689
Operating Lease, Liability, Current	$ 2,949	$ 3,002

Accumulated Other Comprehensi_3

Accumulated Other Comprehensive Income (Loss) (Schedule Of After-Tax Changes In Accumulated Other Comprehensive Income (Loss)) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Accumulated Other Comprehensive Income (Loss) [Line Items]
Selling, general and administrative	$ 25,212	$ 23,864	$ 48,381	$ 45,875
Beginning of Period			(197,651)	(179,987)
Other comprehensive income (loss) before reclassifications			(18,245)	(1,501)
Amounts reclassified from accumulated other comprehensive income (loss)			9,587	5,644
Net other comprehensive income (loss) - current period	3,715	3,207	(8,658)	4,143
End of Period	(206,309)	(175,844)	(206,309)	(175,844)
Income (loss) before income taxes	14,260	18,917	(14,603)	42,728
Income Tax Expense (Benefit)	3,064	4,440	(3,477)	8,467
Net income (loss)	11,196	14,477	(11,126)	34,261
Foreign Currency Translation
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning of Period			(100,663)	(96,940)
Other comprehensive income (loss) before reclassifications			(12,003)	(283)
Amounts reclassified from accumulated other comprehensive income (loss)			0	0
Net other comprehensive income (loss) - current period			(12,003)	(283)
End of Period	(112,666)	(97,223)	(112,666)	(97,223)
Gain (Loss) on Derivative Financial Instruments
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning of Period			(1,307)	(1,601)
Other comprehensive income (loss) before reclassifications			(6,242)	(1,218)
Amounts reclassified from accumulated other comprehensive income (loss)			3,725	1,486
Net other comprehensive income (loss) - current period			(2,517)	268
End of Period	(3,824)	(1,333)	(3,824)	(1,333)
Pension & Other Post-retirement Benefit Adjustment
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning of Period			(95,681)	(81,446)
Other comprehensive income (loss) before reclassifications			0	0
Amounts reclassified from accumulated other comprehensive income (loss)			5,862	4,158
Net other comprehensive income (loss) - current period			5,862	4,158
End of Period	(89,819)	(77,288)	(89,819)	(77,288)
Reclassification out of Accumulated Other Comprehensive Income [Member] | Gain (Loss) on Derivative Financial Instruments
Accumulated Other Comprehensive Income (Loss) [Line Items]
Income (loss) before income taxes	(3,333)	(959)	(4,752)	(1,752)
Income Tax Expense (Benefit)	(721)	(131)	(1,027)	(266)
Net income (loss)	(2,612)	(828)	(3,725)	(1,486)
Reclassification out of Accumulated Other Comprehensive Income [Member] | Pension & Other Post-retirement Benefit Adjustment
Accumulated Other Comprehensive Income (Loss) [Line Items]
Income Tax Expense (Benefit)	(835)	(593)	(1,671)	(1,185)
Net income (loss)	(2,931)	(2,079)	(5,862)	(4,158)
Amortization Of Prior Service Costs And Net Gains Loss	(3,766)	(2,672)	(7,533)	(5,343)
Aluminum Futures Contracts [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member] | Gain (Loss) on Derivative Financial Instruments
Accumulated Other Comprehensive Income (Loss) [Line Items]
Cost of goods sold	(1,551)	(606)	(2,191)	(1,223)
Cost of Sales [Member] | Foreign Currency Forward Contracts [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member] | Gain (Loss) on Derivative Financial Instruments
Accumulated Other Comprehensive Income (Loss) [Line Items]
Cost of goods sold	$ 16	$ 16	$ 31	$ 31

Accumulated Other Comprehensi_4

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		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019	Dec. 31, 2018
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Accumulated Other Comprehensive Income (Loss), Net of Tax	$ (206,309)	$ (175,844)	$ (206,309)	$ (175,844)	$ (197,651)	$ (179,987)
Selling, general and administrative	25,212	23,864	48,381	45,875
Income before income taxes	(14,260)	(18,917)	14,603	(42,728)
Income taxes from continuing operations	(3,064)	(4,440)	3,477	(8,467)
Net income (loss)	11,196	14,477	(11,126)	34,261
Foreign Currency Translation
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Accumulated Other Comprehensive Income (Loss), Net of Tax	(112,666)	(97,223)	(112,666)	(97,223)	(100,663)	(96,940)
Gain (Loss) on Derivative Financial Instruments
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Accumulated Other Comprehensive Income (Loss), Net of Tax	(3,824)	(1,333)	(3,824)	(1,333)	(1,307)	(1,601)
Pension & Other Post-retirement Benefit Adjustment
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Accumulated Other Comprehensive Income (Loss), Net of Tax	(89,819)	(77,288)	(89,819)	(77,288)	$ (95,681)	$ (81,446)
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	3,333	959	4,752	1,752
Income taxes from continuing operations	721	131	1,027	266
Net income (loss)	(2,612)	(828)	(3,725)	(1,486)
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	(1,551)	(606)	(2,191)	(1,223)
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	(3,766)	(2,672)	(7,533)	(5,343)
Income taxes from continuing operations	835	593	1,671	1,185
Net income (loss)	(2,931)	(2,079)	(5,862)	(4,158)
Selling, General and Administrative Expenses [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		(369)		(560)
Selling, general and administrative	(1,798)		(2,592)
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	$ 16	$ 16	$ 31	$ 31

Investments (Narrative) (Detail

Investments (Narrative) (Details) 1 - USD ($)	3 Months Ended			6 Months Ended
	Jun. 30, 2020	Dec. 31, 2019	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2008
50% [Domain] [Domain] | DCF Method for Fair Value Estimate [Member] | kaleo
Weighting of EBITDA Multiple Method versus DCF Method	50.00%			50.00%
50% [Domain] [Domain] | DCF Method for Fair Value Estimate [Member] | 7.0x [Member] | kaleo
Fair Value Sensitivity Analysis: Weighting to DCF Method at Varied EV-to-Adjusted EBITDA Multiple	$ 60,900,000			$ 60,900,000
50% [Domain] [Domain] | DCF Method for Fair Value Estimate [Member] | 9.6x [Member] | kaleo
Fair Value Sensitivity Analysis: Weighting to DCF Method at Varied EV-to-Adjusted EBITDA Multiple	71,700,000			71,700,000
50% [Domain] [Domain] | DCF Method for Fair Value Estimate [Member] | 10.0x [Member] | kaleo
Fair Value Sensitivity Analysis: Weighting to DCF Method at Varied EV-to-Adjusted EBITDA Multiple	77,100,000			77,100,000
50% [Domain] [Domain] | DCF Method for Fair Value Estimate [Member] | 11.0x [Member] | kaleo
Fair Value Sensitivity Analysis: Weighting to DCF Method at Varied EV-to-Adjusted EBITDA Multiple	82,400,000			82,400,000
50% [Domain] [Domain] | DCF Method for Fair Value Estimate [Member] | 8.0x [Member] | kaleo
Fair Value Sensitivity Analysis: Weighting to DCF Method at Varied EV-to-Adjusted EBITDA Multiple	$ 66,300,000			$ 66,300,000
40% [Domain] | DCF Method for Fair Value Estimate [Member] | kaleo
Weighting of EBITDA Multiple Method versus DCF Method	40.00%			40.00%
40% [Domain] | DCF Method for Fair Value Estimate [Member] | 7.0x [Member] | kaleo
Fair Value Sensitivity Analysis: Weighting to DCF Method at Varied EV-to-Adjusted EBITDA Multiple	$ 58,400,000			$ 58,400,000
40% [Domain] | DCF Method for Fair Value Estimate [Member] | 9.6x [Member] | kaleo
Fair Value Sensitivity Analysis: Weighting to DCF Method at Varied EV-to-Adjusted EBITDA Multiple	71,400,000			71,400,000
40% [Domain] | DCF Method for Fair Value Estimate [Member] | 10.0x [Member] | kaleo
Fair Value Sensitivity Analysis: Weighting to DCF Method at Varied EV-to-Adjusted EBITDA Multiple	77,800,000			77,800,000
40% [Domain] | DCF Method for Fair Value Estimate [Member] | 11.0x [Member] | kaleo
Fair Value Sensitivity Analysis: Weighting to DCF Method at Varied EV-to-Adjusted EBITDA Multiple	84,300,000			84,300,000
40% [Domain] | DCF Method for Fair Value Estimate [Member] | 8.0x [Member] | kaleo
Fair Value Sensitivity Analysis: Weighting to DCF Method at Varied EV-to-Adjusted EBITDA Multiple	$ 64,900,000			$ 64,900,000
30% [Domain] | DCF Method for Fair Value Estimate [Member] | kaleo
Weighting of EBITDA Multiple Method versus DCF Method	30.00%			30.00%
30% [Domain] | DCF Method for Fair Value Estimate [Member] | 7.0x [Member] | kaleo
Fair Value Sensitivity Analysis: Weighting to DCF Method at Varied EV-to-Adjusted EBITDA Multiple	$ 56,000,000			$ 56,000,000
30% [Domain] | DCF Method for Fair Value Estimate [Member] | 9.6x [Member] | kaleo
Fair Value Sensitivity Analysis: Weighting to DCF Method at Varied EV-to-Adjusted EBITDA Multiple	71,000,000			71,000,000
30% [Domain] | DCF Method for Fair Value Estimate [Member] | 10.0x [Member] | kaleo
Fair Value Sensitivity Analysis: Weighting to DCF Method at Varied EV-to-Adjusted EBITDA Multiple	78,600,000			78,600,000
30% [Domain] | DCF Method for Fair Value Estimate [Member] | 11.0x [Member] | kaleo
Fair Value Sensitivity Analysis: Weighting to DCF Method at Varied EV-to-Adjusted EBITDA Multiple	86,100,000			86,100,000
30% [Domain] | DCF Method for Fair Value Estimate [Member] | 8.0x [Member] | kaleo
Fair Value Sensitivity Analysis: Weighting to DCF Method at Varied EV-to-Adjusted EBITDA Multiple	$ 63,500,000			$ 63,500,000
20% [Domain] | DCF Method for Fair Value Estimate [Member] | kaleo
Weighting of EBITDA Multiple Method versus DCF Method	20.00%			20.00%
20% [Domain] | DCF Method for Fair Value Estimate [Member] | 7.0x [Member] | kaleo
Fair Value Sensitivity Analysis: Weighting to DCF Method at Varied EV-to-Adjusted EBITDA Multiple	$ 53,500,000			$ 53,500,000
20% [Domain] | DCF Method for Fair Value Estimate [Member] | 9.6x [Member] | kaleo
Fair Value Sensitivity Analysis: Weighting to DCF Method at Varied EV-to-Adjusted EBITDA Multiple	70,700,000			70,700,000
20% [Domain] | DCF Method for Fair Value Estimate [Member] | 10.0x [Member] | kaleo
Fair Value Sensitivity Analysis: Weighting to DCF Method at Varied EV-to-Adjusted EBITDA Multiple	79,300,000			79,300,000
20% [Domain] | DCF Method for Fair Value Estimate [Member] | 11.0x [Member] | kaleo
Fair Value Sensitivity Analysis: Weighting to DCF Method at Varied EV-to-Adjusted EBITDA Multiple	87,900,000			87,900,000
20% [Domain] | DCF Method for Fair Value Estimate [Member] | 8.0x [Member] | kaleo
Fair Value Sensitivity Analysis: Weighting to DCF Method at Varied EV-to-Adjusted EBITDA Multiple	$ 62,100,000			$ 62,100,000
10% [Domain] | DCF Method for Fair Value Estimate [Member] | kaleo
Weighting of EBITDA Multiple Method versus DCF Method	10.00%			10.00%
10% [Domain] | DCF Method for Fair Value Estimate [Member] | 7.0x [Member] | kaleo
Fair Value Sensitivity Analysis: Weighting to DCF Method at Varied EV-to-Adjusted EBITDA Multiple	$ 51,000,000			$ 51,000,000
10% [Domain] | DCF Method for Fair Value Estimate [Member] | 9.6x [Member] | kaleo
Fair Value Sensitivity Analysis: Weighting to DCF Method at Varied EV-to-Adjusted EBITDA Multiple	70,400,000			70,400,000
10% [Domain] | DCF Method for Fair Value Estimate [Member] | 10.0x [Member] | kaleo
Fair Value Sensitivity Analysis: Weighting to DCF Method at Varied EV-to-Adjusted EBITDA Multiple	80,000,000			80,000,000
10% [Domain] | DCF Method for Fair Value Estimate [Member] | 11.0x [Member] | kaleo
Fair Value Sensitivity Analysis: Weighting to DCF Method at Varied EV-to-Adjusted EBITDA Multiple	89,700,000			89,700,000
10% [Domain] | DCF Method for Fair Value Estimate [Member] | 8.0x [Member] | kaleo
Fair Value Sensitivity Analysis: Weighting to DCF Method at Varied EV-to-Adjusted EBITDA Multiple	$ 60,700,000			$ 60,700,000
0% [Domain] | DCF Method for Fair Value Estimate [Member] | kaleo
Weighting of EBITDA Multiple Method versus DCF Method	0.00%			0.00%
0% [Domain] | DCF Method for Fair Value Estimate [Member] | 7.0x [Member] | kaleo
Fair Value Sensitivity Analysis: Weighting to DCF Method at Varied EV-to-Adjusted EBITDA Multiple	$ 48,500,000			$ 48,500,000
0% [Domain] | DCF Method for Fair Value Estimate [Member] | 9.6x [Member] | kaleo
Fair Value Sensitivity Analysis: Weighting to DCF Method at Varied EV-to-Adjusted EBITDA Multiple	70,000,000			70,000,000
0% [Domain] | DCF Method for Fair Value Estimate [Member] | 10.0x [Member] | kaleo
Fair Value Sensitivity Analysis: Weighting to DCF Method at Varied EV-to-Adjusted EBITDA Multiple	80,800,000			80,800,000
0% [Domain] | DCF Method for Fair Value Estimate [Member] | 11.0x [Member] | kaleo
Fair Value Sensitivity Analysis: Weighting to DCF Method at Varied EV-to-Adjusted EBITDA Multiple	91,500,000			91,500,000
0% [Domain] | DCF Method for Fair Value Estimate [Member] | 8.0x [Member] | kaleo
Fair Value Sensitivity Analysis: Weighting to DCF Method at Varied EV-to-Adjusted EBITDA Multiple	59,300,000			59,300,000
Unrealized gain (loss) on investment under fair value method				(24,800,000)	$ 6,600,000
Gain (Loss) on Disposition of Assets				$ 0	(11,000)
kaleo
Total cash invested in private company						$ 7,500,000
Ownership interest percentage				18.00%
Carrying value	70,700,000	$ 95,500,000		$ 70,700,000
Other Interest and Dividend Income			$ 17,600,000		17,600,000
Unrealized gain (loss) on investment under fair value method	(1,300,000)		$ (7,100,000)	24,800,000	24,182,000
Unrealized Gain Loss On Investments Net Of Tax	$ (900,000)			$ 19,500,000	$ 19,900,000
Basis point decrease of weighted average cost of capital assumption
Basis point increase of weighted average cost of capital assumption
DCF Method for Fair Value Estimate [Member] | kaleo | Measurement Input, Discount Rate [Member]
Servicing Assets and Servicing Liabilities at Fair Value, Assumptions Used to Estimate Fair Value, Discount Rate	20.00%	10.00%	15.00%
DCF Method for Fair Value Estimate [Member] | 7.0x [Member] | kaleo
EV-to-Adjusted EBITDA Multiple Method				5.0 x
DCF Method for Fair Value Estimate [Member] | 9.6x [Member] | kaleo
EV-to-Adjusted EBITDA Multiple Method				7.0 x
DCF Method for Fair Value Estimate [Member] | 10.0x [Member] | kaleo
EV-to-Adjusted EBITDA Multiple Method				8.0x
DCF Method for Fair Value Estimate [Member] | 11.0x [Member] | kaleo
EV-to-Adjusted EBITDA Multiple Method				9.0x
DCF Method for Fair Value Estimate [Member] | 8.0x [Member] | kaleo
EV-to-Adjusted EBITDA Multiple Method				6.0 x
EBITDA Multiple Method for Fair Value Estimate [Member] | kaleo
Weighting of EBITDA Multiple Method versus DCF Method	80.00%			80.00%

Derivative Financial Instrume_3

Derivative Financial Instruments (Narrative) (Details) R$ in Thousands, $ in Thousands, lbs in Millions	6 Months Ended	12 Months Ended
	Jun. 30, 2020BRL (R$)	Jun. 30, 2021USD ($)	Jun. 30, 2020USD ($)lbs	Jun. 30, 2020BRL (R$)lbs	Dec. 31, 2019USD ($)lbs
Derivative [Line Items]
Amounts of unrealized after tax gains (losses) to be Reclassified within Twelve Months		$ 1,400
Aluminum Futures Contracts
Derivative [Line Items]
Derivative, Notional Amount			$ 20,100		$ 20,200
Net asset (liability), Fair Value			$ (1,857)		$ (1,253)
Commitment Under Cash Flow Hedges, Mass | lbs			21.7	21.7	19.6
Terphane Ltda [Member]
Derivative [Line Items]
Derivative, Notional Amount			$ 13,050	R$ 51573
Accrued Expenses [Member] | Derivatives Designated As Hedging Instruments [Member] | Aluminum Futures Contracts
Derivative [Line Items]
Derivative Asset, Fair Value, Gross Asset			172		$ 6
Derivative Liability, Fair Value, Gross Liability			2,029		$ 1,259
Cash Flow Hedging [Member] | Foreign Currency Forwwards And Options [Member]
Derivative [Line Items]
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, before Tax			$ 3,500
Oct-2018 [Member] | Terphane Ltda [Member]
Derivative [Line Items]
Annual Net Costs Mismatch Translation Exposure - Real vs US Dollar | R$	R$ 136000

Derivative Financial Instrume_4

Derivative Financial Instruments (Summary Of Location And Fair Value Of Derivative Financial Instruments) (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Flexible Packaging Films [Member] [Domain] | Accrued Expenses [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value, Gross Asset	$ (4,058)	$ (852)
Aluminum Futures Contracts
Derivatives, Fair Value [Line Items]
Net asset (liability), Fair Value	(1,857)	(1,253)
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	0	83
Liability derivatives: Fair Value	4,058	935
Derivatives Designated As Hedging Instruments [Member] | Aluminum Futures Contracts | Accrued Expenses [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value, Gross Asset	172	6
Liability derivatives: Fair Value	$ (2,029)	$ (1,259)

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) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Foreign Currency Forwards And Options [Member] | Cost Of Sales
Derivative Instruments, Gain (Loss) [Line Items]
Amount of pretax gain (loss) reclassified from accumulated other comprehensive income (loss) to net income effective portion)	$ 16	$ 16	$ 31	$ 31
Foreign Currency Forwards And Options [Member] | Selling, General and Administrative Expenses [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of pretax gain (loss) reclassified from accumulated other comprehensive income (loss) to net income effective portion)	(1,798)	(369)	(2,592)	(560)
Cash Flow Derivative Hedges | Aluminum Futures Contracts
Derivative Instruments, Gain (Loss) [Line Items]
Amount of pretax gain (loss) recognized in other comprehensive income (loss)	(1,201)	(1,192)	(2,795)	(1,438)
Cash Flow Derivative Hedges | Aluminum Futures Contracts | Cost Of Sales
Derivative Instruments, Gain (Loss) [Line Items]
Amount of pretax gain (loss) reclassified from accumulated other comprehensive income (loss) to net income effective portion)	(1,551)	(606)	(2,191)	(1,223)
Cash Flow Derivative Hedges | Foreign Currency Forwards And Options
Derivative Instruments, Gain (Loss) [Line Items]
Amount of pretax gain (loss) recognized in other comprehensive income (loss)	0	0		0
Cash Flow Derivative Hedges | Foreign Currency Forwards And Options | Cost Of Sales
Derivative Instruments, Gain (Loss) [Line Items]
Amount of pretax gain (loss) recognized in other comprehensive income (loss)			0
Cash Flow Derivative Hedges | Foreign Currency Forwards And Options | Selling, General and Administrative Expenses [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of pretax gain (loss) recognized in other comprehensive income (loss)	$ (535)	$ 719	$ (5,360)	$ (97)

Derivative Financial Instrume_6

Derivative Financial Instruments Terphane Future Cash Flow Hedges (Details) - Terphane Ltda [Member] R$ in Thousands, $ in Thousands	Jun. 30, 2020USD ($)	Jun. 30, 2020BRL (R$)
Derivative [Line Items]
Derivative, Notional Amount	$ 13,050	R$ 51573
Percentage of Coverage Using Cash Flow Hedges	76.00%	76.00%
Foreign Currency Exchange Rate, Translation	3.9520	3.9520
Jul-19 [Member]
Derivative [Line Items]
Derivative, Notional Amount	$ 2,200	R$ 8652
Percentage of Coverage Using Cash Flow Hedges	76.00%	76.00%
Foreign Currency Exchange Rate, Translation	3.9326	3.9326
Aug-20 [Member] [Member]
Derivative [Line Items]
Derivative, Notional Amount	$ 2,200	R$ 8671
Percentage of Coverage Using Cash Flow Hedges	77.00%	77.00%
Foreign Currency Exchange Rate, Translation	3.9413	3.9413
Sep-20 [Member] [Member]
Derivative [Line Items]
Derivative, Notional Amount	$ 2,200	R$ 8689
Percentage of Coverage Using Cash Flow Hedges	77.00%	77.00%
Foreign Currency Exchange Rate, Translation	3.9495	3.9495
Oct-20 [Member] [Member]
Derivative [Line Items]
Derivative, Notional Amount	$ 2,200	R$ 8707
Percentage of Coverage Using Cash Flow Hedges	77.00%	77.00%
Foreign Currency Exchange Rate, Translation	3.9579	3.9579
Nov-20 [Member] [Member]
Derivative [Line Items]
Derivative, Notional Amount	$ 2,200	R$ 8725
Percentage of Coverage Using Cash Flow Hedges	77.00%	77.00%
Foreign Currency Exchange Rate, Translation	3.9660	3.9660
Dec-20 [Member] [Member]
Derivative [Line Items]
Derivative, Notional Amount	$ 2,050	R$ 8129
Percentage of Coverage Using Cash Flow Hedges	72.00%	72.00%
Foreign Currency Exchange Rate, Translation	3.9653	3.9653

Pension And Other Post-Retire_3

Pension And Other Post-Retirement Benefits (Narrative) (Details) - USD ($) $ in Millions	6 Months Ended	12 Months Ended
	Jun. 30, 2020	Dec. 31, 2020	Dec. 31, 2019
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Amounts for Asset (Liability) Recognized in Statement of Financial Position	$ (105.6)		$ (108.1)
Other Post-Retirement Benefits
Defined Benefit Plan Disclosure [Line Items]
Contribution to pension plans for continuing operations		$ 0.3
Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Expected required contributions		12.3
Contribution to pension plans for continuing operations	1.8
Defined Benefit Plan, Expected Future Employer Contributions, Next Fiscal Year		$ 2.4
Accrued Expenses [Member]
Defined Benefit Plan Disclosure [Line Items]
Liability, Defined Benefit Plan, Current	$ 0.7		$ 0.6

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		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 0	$ 0	$ 0	$ 0
Interest cost	2,535	3,068	5,070	6,135
Expected return on plan assets	(2,804)	(3,404)	(5,608)	(6,808)
Amortization of prior service costs, (gains) losses and net transition asset	3,814	2,730	7,628	5,459
Net periodic benefit cost	3,545	2,394	7,090	4,786
Other Post-Retirement Benefits
Defined Benefit Plan Disclosure [Line Items]
Service cost	9	8	18	16
Interest cost	60	73	120	146
Expected return on plan assets	0	0	0	0
Amortization of prior service costs, (gains) losses and net transition asset	(47)	(57)	(94)	(115)
Net periodic benefit cost	$ 22	$ 24	$ 44	$ 47

Other Income (Expense), Net (De

Other Income (Expense), Net (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Other Income and Expenses [Abstract]
Other income (expense), net	$ (13)	$ 7,096	$ (26,225)	$ 24,206
Other Nonoperating Income (Expense), Net - Other	$ (19)	$ (4)	$ (131)	$ 24

Other Income (Expense), Net O_2

Other Income (Expense), Net Other Income (Expense), Net (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Other Nonoperating Income (Expense), Net - Total	$ (13,000)	$ 7,096,000	$ (26,225,000)	$ 24,206,000
Gain (Loss) on Disposition of Assets			0	(11,000)
Other Nonoperating Income (Expense), Net - Other	(19,000)	(4,000)	(131,000)	24,000
Other Nonoperating Expense	(1,294,000)	0	(1,294,000)	0
kaleo [Member]
Other Interest and Dividend Income		17,600,000		17,600,000
Unrealized Gain (Loss) on Investments - kaleo	$ 1,300,000	$ 7,100,000	$ (24,800,000)	$ 24,182,000

Segment Reporting (Schedule Of

Segment Reporting (Schedule Of Segment Reporting Information By Segment) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Segment Reporting Information [Line Items]
Total net sales	$ 211,174	$ 239,361	$ 430,896	$ 478,807
Gross Sales	218,638	248,248	446,940	496,714
Goodwill, Impairment Loss	0	0	(13,696)	0
Total Segment Income (Loss)	24,751	23,261	33,614	39,739
Interest income	24	48	76	107
Interest expense	548	1,263	1,104	2,495
Gain (loss) on investment in kaléo accounted for under fair value method			(24,800)	6,600
Gain (Loss) on Disposition of Assets			0	(11)
Stock option-based compensation costs	725	898	1,309	1,313
Corporate expenses, net	10,542	9,331	21,080	17,492
Income from continuing operations before income taxes	14,260	18,917	(14,603)	42,728
Income taxes from continuing operations	3,064	4,440	(3,477)	8,467
Net income (loss)	11,196	14,477	(11,126)	34,261
kaleo
Segment Reporting Information [Line Items]
Gain (loss) on investment in kaléo accounted for under fair value method	(1,300)	(7,100)	24,800	24,182
PE Films
Segment Reporting Information [Line Items]
Total net sales	71,012	69,161	142,273	135,941
EBITDA	(646)	(1,523)	(1,552)	(2,901)
Earnings before interest, taxes, depreciation and amortization (EBITDA)	15,319	11,160	29,507	17,703
Depreciation, Depletion and Amortization	(3,753)	(3,394)	(7,477)	(6,986)
Earnings before interest and taxes (EBIT)	11,566	7,766	22,030	10,717
Flexible Packaging Films [Member] [Domain]
Segment Reporting Information [Line Items]
Total net sales	34,104	33,443	64,678	67,062
EBITDA	(10)	0	(10)	0
Aluminum Extrusions [Member]
Segment Reporting Information [Line Items]
Total net sales	106,058	136,757	223,945	275,804
EBITDA	(1,230)	(17)	(1,918)	(57)
Goodwill, Impairment Loss	0	0	13,696	0
Earnings before interest, taxes, depreciation and amortization (EBITDA)	13,279	18,600	24,956	34,767
Depreciation, Depletion and Amortization	(4,267)	(4,082)	(8,380)	(8,164)
Earnings before interest and taxes (EBIT)	9,012	14,518	16,576	26,603
Flexible Packaging Films [Member]
Segment Reporting Information [Line Items]
Earnings before interest, taxes, depreciation and amortization (EBITDA)	6,495	2,880	13,048	6,084
Depreciation, Depletion and Amortization	(436)	(363)	(864)	(707)
Earnings before interest and taxes (EBIT)	6,059	2,517	12,184	5,377
Shipping and Handling [Member]
Segment Reporting Information [Line Items]
Cost of goods sold	7,464	8,887	16,044	17,907
Personal Care Materials [Member] | PE Films
Segment Reporting Information [Line Items]
Total net sales	36,258	37,956	77,488	82,812
Surface Protection Films [Member] | PE Films
Segment Reporting Information [Line Items]
Total net sales	31,699	29,253	60,052	49,142
Films For Other Markets [Member] | PE Films
Segment Reporting Information [Line Items]
Total net sales	3,055	1,952	4,733	3,987
Film Products Subtotal [Member] | PE Films
Segment Reporting Information [Line Items]
Total net sales	71,012	69,161	142,273	135,941
Nonresidential Building And Construction [Member] | Aluminum Extrusions [Member]
Segment Reporting Information [Line Items]
Total net sales	64,726	69,019	127,865	138,657
Consumer Durables [Member] | Aluminum Extrusions [Member]
Segment Reporting Information [Line Items]
Total net sales	7,782	16,381	20,331	31,926
Distribution [Member] | Aluminum Extrusions [Member]
Segment Reporting Information [Line Items]
Total net sales	6,521	8,739	14,259	17,312
Automotive [Member] | Aluminum Extrusions [Member]
Segment Reporting Information [Line Items]
Total net sales	5,572	12,496	15,043	25,123
Residential Building And Construction [Member] | Aluminum Extrusions [Member]
Segment Reporting Information [Line Items]
Total net sales	9,052	10,278	18,867	21,950
Machinery and Equipment BNL [Domain] | Aluminum Extrusions [Member]
Segment Reporting Information [Line Items]
Total net sales	7,630	9,471	15,566	19,394
Electrical [Member] | Aluminum Extrusions [Member]
Segment Reporting Information [Line Items]
Total net sales	4,775	10,373	12,014	21,442
Aluminum Extrusions Subtotal [Member] | Aluminum Extrusions [Member]
Segment Reporting Information [Line Items]
Total net sales	106,058	136,757	223,945	275,804
Product [Member]
Segment Reporting Information [Line Items]
Cost of goods sold	$ 161,820	$ 192,581	$ 337,131	$ 393,235

Segment Reporting (Schedule O_2

Segment Reporting (Schedule Of Identifiable Assets By Segment) (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019	Jun. 30, 2019	Dec. 31, 2018
Subtotal	$ 532,943	$ 569,458
General corporate	85,934	111,788
Cash, cash equivalents, and restricted cash at beginning of period	39,930	31,422	$ 39,769	$ 34,397
Total assets	658,807	712,668
PE Films
Total assets	226,027	230,415
Flexible Packaging Films [Member] [Domain]
Total assets	66,011	74,016
Aluminum Extrusions [Member]
Total assets	$ 240,905	$ 265,027

Segment Reporting Schedule of R

Segment Reporting Schedule of Revenue by Geographic Location (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019
Disaggregation of Revenue [Line Items]
Sales	$ 211,174	$ 239,361	$ 430,896	$ 478,807
UNITED STATES
Disaggregation of Revenue [Line Items]
Sales	141,559	162,788	287,742	335,042
PE Films
Disaggregation of Revenue [Line Items]
Sales	71,012	69,161	142,273	135,941
PE Films | Personal Care Materials [Member]
Disaggregation of Revenue [Line Items]
Sales	36,258	37,956	77,488	82,812
PE Films | Surface Protection Films [Member]
Disaggregation of Revenue [Line Items]
Sales	31,699	29,253	60,052	49,142
PE Films | Films For Other Markets [Member]
Disaggregation of Revenue [Line Items]
Sales	3,055	1,952	4,733	3,987
PE Films | Film Products Subtotal [Member]
Disaggregation of Revenue [Line Items]
Sales	71,012	69,161	142,273	135,941
Flexible Packaging Films [Member] [Domain]
Disaggregation of Revenue [Line Items]
Sales	34,104	33,443	64,678	67,062
Aluminum Extrusions [Member]
Disaggregation of Revenue [Line Items]
Sales	106,058	136,757	223,945	275,804
Aluminum Extrusions [Member] | Nonresidential Building And Construction [Member]
Disaggregation of Revenue [Line Items]
Sales	64,726	69,019	127,865	138,657
Aluminum Extrusions [Member] | Consumer Durables [Member]
Disaggregation of Revenue [Line Items]
Sales	7,782	16,381	20,331	31,926
Aluminum Extrusions [Member] | Distribution [Member]
Disaggregation of Revenue [Line Items]
Sales	6,521	8,739	14,259	17,312
Aluminum Extrusions [Member] | Automotive [Member]
Disaggregation of Revenue [Line Items]
Sales	5,572	12,496	15,043	25,123
Aluminum Extrusions [Member] | Residential Building And Construction [Member]
Disaggregation of Revenue [Line Items]
Sales	9,052	10,278	18,867	21,950
Aluminum Extrusions [Member] | Aluminum Extrusions Subtotal [Member]
Disaggregation of Revenue [Line Items]
Sales	106,058	136,757	223,945	275,804
Aluminum Extrusions [Member] | Machinery and Equipment BNL [Domain]
Disaggregation of Revenue [Line Items]
Sales	7,630	9,471	15,566	19,394
Aluminum Extrusions [Member] | Electrical [Member]
Disaggregation of Revenue [Line Items]
Sales	4,775	10,373	12,014	21,442
Exports From United States [Member] | Asia [Member]
Disaggregation of Revenue [Line Items]
Sales	23,643	24,513	45,807	38,006	$ 32,100
Revenues	10,000	7,500	19,300	12,700
Exports From United States [Member] | CANADA
Disaggregation of Revenue [Line Items]
Sales	1,854	5,872	6,752	9,477
Exports From United States [Member] | Europe [Member]
Disaggregation of Revenue [Line Items]
Sales	1,562	1,517	3,063	2,877
Exports From United States [Member] | Latin America [Member]
Disaggregation of Revenue [Line Items]
Sales	2,078	2,670	5,212	5,537
Operations Outside United States [Member] | BRAZIL
Disaggregation of Revenue [Line Items]
Sales	25,739	27,582	51,687	55,721
Operations Outside United States [Member] | NETHERLANDS
Disaggregation of Revenue [Line Items]
Sales	7,132	8,450	15,017	18,037
Operations Outside United States [Member] | HUNGARY
Disaggregation of Revenue [Line Items]
Sales	5,751	5,162	12,355	11,996
Operations Outside United States [Member] | CHINA
Disaggregation of Revenue [Line Items]
Sales	0	0	0	230
Operations Outside United States [Member] | INDIA
Disaggregation of Revenue [Line Items]
Sales	$ 1,856	$ 807	$ 3,261	$ 1,884

Income Taxes (Narrative) (Detai

Income Taxes (Narrative) (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Income Taxes [Line Items]
Effective Income Tax Rate Reconciliation - U.S. Tax on Foreign Branch Income			$ 534,000	$ 1,808,000
Effective Income Tax Rate Reconciliation - U.S. Tax on Foreign Branch Income - Percentage			(3.70%)	5.00%
Effective Income Tax Rate Reconciliation, Tax Credit, Research, Amount			$ (487,000)	$ (255,000)
Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount			$ (3,066,000)	$ 8,972,000
Effective Income Tax Rate Reconciliation, Tax Credit, Foreign, Percent			18.00%	(3.00%)
effective income tax rate reconciliation, valuation allowance due to foreign losses			$ (209,000)	$ (1,353,000)
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent			21.00%	21.00%
Effective Income Tax Rate Reconciliation, Foreign Income Tax Rate Differential, Amount			$ 2,510,000	$ 1,191,000
Effective Income Tax Rate Reconciliation Amount - FDII			0	(445,000)
Effective Income Tax Rate Reconciliation, Tax Credit, Amount			$ (2,630,000)	$ 1,074,000
Effective Income Tax Rate Reconciliation, Foreign Income Tax Rate Differential, Percent			(17.00%)	3.30%
Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Amount			$ (179,000)	$ 468,000
Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Percent			1.20%	1.10%
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Share-based Payment Arrangement, Amount			$ 247,000	$ (141,000)
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Share-based Payment Arrangement, Percent			(1.70%)	(0.40%)
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Amount			$ 375,000	$ 217,000
Effective Income Tax Rate Reconciliation Percent - FDII			0.00%	(1.20%)
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Percent			(2.60%)	0.60%
Effective Income Tax Rate Reconciliation Operating Loss Carryforwards Valuation Allowance For Foreign Country			1.40%	(3.70%)
Effective Income Tax Rate Reconciliation Capital Loss Carryforwards Valuation Allowance, Amount			$ 40,000	$ 0
Effective Income Tax Rate Reconciliation Capital Loss Carryforwards Valuation Allowance			(0.30%)	0.00%
Effective Income Tax Rate Reconciliation, Repatriation of Foreign Earnings, Amount			$ 128,000	$ 0
Effective Income Tax Rate Reconciliation, Deduction, Amount			(3,477,000)	8,467,000
Goodwill, Impairment Loss	$ 0	$ 0	$ 13,696,000	$ 0
Effective Income Tax Rate Reconciliation, Percent			23.80%	19.80%
Income (Loss) from Continuing Operations before Income Taxes, Extraordinary Items, Noncontrolling Interest	$ 14,260,000	$ 18,917,000	$ (14,603,000)	$ 42,728,000
Effective Income Tax Rate Reconciliation, Tax Contingency, Percent			1.00%	(0.40%)
Effective Income Tax Rate Reconciliation, Prior Year Income Taxes, Amount			$ (592,000)	$ 152,000
Brazilian [Member]
Income Taxes [Line Items]
Effective income tax rate reconciliation social contribution on income			9.00%
Effective Income Tax Rate Reconciliation Federal Statutory Tax Rate Excluding Social Contribution On Income			25.00%
Effective Income Tax Rate Reconciliation Federal Statutory Tax Rate Including Social Contribution On Income			34.00%
Flexible Packaging Films [Member]
Income Taxes [Line Items]
Foreign Tax Credit - Brazil			$ 2,600,000	$ 1,100,000
Terphane Ltda [Member]
Income Taxes [Line Items]
Current Effective Tax Rate Including Social Contribution On Income			15.25%
LengthBrazilianTaxIncentive			13 years

Income Taxes (Schedule Of Effec

Income Taxes (Schedule Of Effective Income Tax Rate For Continuing Operations) (Details) - USD ($)	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Income Tax Disclosure [Abstract]
Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount	$ (3,066,000)	$ 8,972,000
Income tax expense at federal statutory rate	21.00%	21.00%
Effective Income Tax Rate Reconciliation, Foreign Income Tax Rate Differential, Amount	$ 2,510,000	$ 1,191,000
State taxes, net of federal income tax benefit	1.20%	1.10%
Income tax contingency accruals and tax settlements	1.00%	(0.40%)
Effective Income Tax Rate Reconciliation, Prior Year Income Taxes, Amount	$ (592,000)	$ 152,000
Effective Income Tax Rate Reconciliation Capital Loss Carryforwards Valuation Allowance, Amount	$ 40,000	$ 0
Effective Income Tax Rate Reconciliation, Repatriation of Foreign Earnings, Amount	(0.90%)	0.00%
Effective Income Tax Rate Reconciliation, Tax Credit, Research, Amount	$ (487,000)	$ (255,000)
Changes in estimates related to prior year tax provision	4.10%	0.40%
Non-deductible expenses	(2.60%)	0.60%
Valuation allowance for foreign operating loss carry-forwards	1.40%	(3.70%)
Research and development tax credit	3.30%	(0.70%)
Foreign rate differences	(17.00%)	3.30%
Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Amount	$ (179,000)	$ 468,000
Foreign tax incentives	18.00%	(3.00%)
Effective Income Tax Rate Reconciliation, Deduction, Dividends, Amount	$ 0	$ (919,000)
Effective Income Tax Rate Reconciliation, Deduction, Dividend, Percent	0.00%	(2.20%)
effective income tax rate reconciliation, valuation allowance due to foreign losses	$ (209,000)	$ (1,353,000)
Valuation allowance for capital loss carry-forwards	(0.30%)	0.00%
Effective Income Tax Rate Reconciliation, Deduction, Amount	$ 3,477,000	$ (8,467,000)
Effective income tax rate for income from continuing operations	(23.80%)	(19.80%)
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Share-based Payment Arrangement, Amount	$ 247,000	$ (141,000)
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Share-based Payment Arrangement, Percent	(1.70%)	(0.40%)
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Amount	$ 375,000	$ 217,000
Effective Income Tax Rate Reconciliation, Tax Settlement, Other, Amount	(148,000)	(154,000)
Effective Income Tax Rate Reconciliation, Repatriation of Foreign Earnings, Amount	(128,000)	0
Effective Income Tax Rate Reconciliation Amount - FDII	$ 0	$ (445,000)
Effective Income Tax Rate Reconciliation Percent - FDII	0.00%	(1.20%)
Effective Income Tax Rate Reconciliation, Tax Credit, Amount	$ (2,630,000)	$ 1,074,000
Effective Income Tax Rate Reconciliation - U.S. Tax on Foreign Branch Income	$ 534,000	$ 1,808,000
Effective Income Tax Rate Reconciliation - U.S. Tax on Foreign Branch Income - Percentage	(3.70%)	5.00%
Effective Income Tax Rate Reconciliation, Repatriation of Foreign Earnings, Amount	$ 128,000	$ 0

New Accounting Pronouncements N

New Accounting Pronouncements New Accounting Pronouncements (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
New Accounting Pronouncements [Abstract]
Operating Lease, Right-of-Use Asset	$ 17,879	$ 19,220
Operating Lease, Liability, Noncurrent	$ 16,305	$ 17,689