Tredegar (TG) 10-Q 8 Aug 19 2019 Q2 Quarterly report Financial data

Document And Entity Information

Document And Entity Information - shares	6 Months Ended
	Jun. 30, 2019	Aug. 02, 2019
Document And Entity Information [Abstract]
Entity Registrant Name	TREDEGAR CORP
Entity Central Index Key	0000850429
Current Fiscal Year End Date	--12-31
Entity Filer Category	Accelerated Filer
Document Type	10-Q
Entity Emerging Growth Company	false
Entity Small Business	false
Entity Current Reporting Status	Yes
Entity Shell Company	false
Document Period End Date	Jun. 30, 2019
Document Fiscal Year Focus	2019
Document Fiscal Period Focus (Q1,Q2,Q3,FY)	Q2
Amendment Flag	false
Entity Common Stock, Shares Outstanding		33,353,082

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Current assets:
Cash and cash equivalents	$ 34,660	$ 34,397
Restricted Cash, Current	5,109	0
Accounts and other receivables, net of allowance for doubtful accounts and sales returns of $3,206 in 2019 and $2,937 in 2018	116,370	124,727
Income Taxes Receivable, Current	2,923	6,783
Inventories	93,359	93,810
Prepaid expenses and other	8,501	9,564
Total current assets	260,922	269,281
Property, plant and equipment, at cost	795,045	793,072
Less accumulated depreciation	(559,330)	(564,703)
Net property, plant and equipment	235,715	228,369
Operating Lease, Right-of-Use Asset	19,610	0
Investment in kaleo	91,200	84,600
Intangible Assets, Net (Excluding Goodwill)	34,530	36,295
Goodwill	81,404	81,404
Deferred Tax Assets, Net, Noncurrent	1,343	3,412
Other assets	5,376	4,012
Total assets	730,100	707,373
Current liabilities:
Accounts payable	106,871	112,758
Accrued expenses	46,479	42,495
Operating Lease, Liability, Current	2,650	0
Short-term Lease Commitment, Amount		0
Total current liabilities	156,000	155,253
Operating Lease, Liability, Noncurrent	18,526
Long-term debt	73,000	101,500
Liability, Pension and Other Postretirement and Postemployment Benefits, Noncurrent	83,965	88,124
Deferred income taxes	4,402	0
Other noncurrent liabilities	5,931	7,639
Total liabilities	341,824	352,516
Shareholders’ equity:
Common stock, no par value (issued and outstanding - 33,353,082 shares at June 30, 2019 and 33,176,024 shares at December 31, 2018)	41,227	38,892
Common stock held in trust for savings restoration plan (73,853 shares at June 30, 2019 and 72,883 shares at December 31, 2018)	(1,575)	(1,559)
Foreign currency translation adjustment	(97,223)	(96,940)
Gain (loss) on derivative financial instruments	(1,333)	(1,601)
Pension and other post-retirement benefit adjustments	(77,289)	(81,446)
Retained earnings	524,469	497,511
Total shareholders’ equity	388,276	354,857
Total liabilities and shareholders’ equity	$ 730,100	$ 707,373

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Statement of Financial Position [Abstract]
Accounts and other receivables, allowance for doubtful accounts and sales returns	$ 3,206	$ 2,937
Common stock, no par value
Common stock, shares issued	33,353,082	33,176,024
Common stock, shares outstanding	33,353,082	33,176,024
Common Stock, Shares Held in Employee Trust, Shares	73,853	72,883

Consolidated Statements Of Inco

Consolidated Statements Of Income - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Gross Sales	$ 248,248	$ 263,759	$ 496,714	$ 522,470
Revenues and other items:
Other income (expense), net	7,096	5,857	24,206	14,089
Total revenues, net of other expenses	255,344	269,616	520,920	536,559
Costs and expenses:
Selling, general and administrative	23,864	20,946	45,875	42,775
Research and development	5,451	4,646	9,936	8,957
Amortization of identifiable intangibles	890	1,025	1,782	2,054
Accrued pension and post-retirement benefits	2,416	2,578	4,831	5,156
Interest expense	1,263	1,577	2,495	3,221
Asset impairments and costs associated with exit and disposal activities, net of adjustments	1,075	468	2,131	590
Total	236,427	250,347	478,192	493,838
Income before income taxes	18,917	19,269	42,728	42,721
Income taxes from continuing operations	4,440	4,547	8,467	9,834
Net income	$ 14,477	$ 14,722	$ 34,261	$ 32,887
Basic
Basic	$ 0.44	$ 0.45	$ 1.03	$ 1
Diluted
Diluted	$ 0.44	$ 0.44	$ 1.03	$ 1
Shares used to compute earnings per share:
Basic	33,270	33,074	33,197	33,028
Diluted	33,278	33,108	33,203	33,048
Dividends per share	$ 0.11	$ 0.11	$ 0.22	$ 0.22
Product [Member]
Costs and expenses:
Cost of goods sold	$ 192,581	$ 210,667	$ 393,235	$ 413,856
Shipping and Handling [Member]
Costs and expenses:
Cost of goods sold	$ 8,887	$ 8,440	$ 17,907	$ 17,229

Consolidated Statements Of Comp

Consolidated Statements Of Comprehensive Income (Loss) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Statement of Comprehensive Income [Abstract]
Net income	$ 14,477	$ 14,722	$ 34,261	$ 32,887
Other comprehensive income (loss):
Foreign currency translation adjustment	507	(10,811)	(283)	(8,905)
Derivative financial instruments adjustment	621	(905)	268	(1,190)
Amortization of prior service costs and net gains or losses	2,079	2,611	4,158	5,223
Other comprehensive income (loss)	3,207	(9,105)	4,143	(4,872)
Comprehensive income (loss)	$ 17,684	$ 5,617	$ 38,404	$ 28,015

Consolidated Statements Of Co_2

Consolidated Statements Of Comprehensive Income (Loss) (Parenthetical) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Statement of Comprehensive Income [Abstract]
Foreign currency translation adjustment, tax (benefit)	$ 0	$ 0	$ 0	$ 0
Derivative financial instruments adjustment, tax (benefit)	(134)	164	(51)	20
Amortization of prior service costs and net gains or losses, tax	$ 593	$ 761	$ 1,185	$ 1,523

Consolidated Statements Of Cash

Consolidated Statements Of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018
Cash flows from operating activities:
Net income	$ 34,261	$ 32,887
Adjustments for noncash items:
Depreciation	14,465	14,688
Amortization of identifiable intangibles	1,782	2,054
Amortization of Leased Asset	1,270	0
Payment for Pension and Other Postretirement Benefits	(3,648)	(2,912)
Deferred income taxes	5,339	8,996
Accrued pension and post-retirement benefits	4,831	5,156
Unrealized Gain (Loss) on Investments	6,600	14,000
(Gain)/loss on asset impairments and divestitures	522	0
Gain (Loss) on Disposition of Assets	(11)	(109)
Changes in assets and liabilities, net of effects of acquisitions and divestitures:
Accounts and other receivables	8,471	(15,205)
Inventories	702	(810)
Income taxes recoverable/payable	3,860	26,277
Prepaid expenses and other	1,081	(2,057)
Accounts payable and accrued expenses	(566)	13,879
Operating Leases, Rent Expense	(1,306)	0
Other, net	4,043	2,926
Net Cash Provided by (Used in) Operating Activities	68,496	71,770
Cash flows from investing activities:
Capital expenditures	(24,251)	(14,528)
Payment for Contingent Consideration Liability, Investing Activities	0
Escrow Deposit Disbursements Related to Property Acquisition		4,250
Proceeds from the sale of assets and other	22	1,095
Net cash used in investing activities	(24,229)	(9,183)
Cash flows from financing activities:
Borrowings	30,000	28,000
Debt principal payments	(58,500)	(57,000)
Dividends paid	(7,320)	(7,293)
Payments of Debt Issuance Costs	1,757	0
Proceeds from exercise of stock options and other	(854)	926
Net cash used in financing activities	(38,431)	(35,367)
Effect of exchange rate changes on cash	(464)	(1,390)
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect	5,372	25,830
Cash, cash equivalents, and restricted cash at beginning of period	34,397	36,491
Cash, cash equivalents, and restricted cash at end of period	$ 39,769	$ 62,321

Consolidated Statements Of Shar

Consolidated Statements Of Shareholders' Equity - USD ($) $ in Thousands	Total	Common Stock	Retained Earnings	Trust for Savings Restoration Plan	Foreign Currency Translation	Gain (Loss) on Derivative Financial Instruments	Pension & Other Post-retirement Benefit Adjustment
Beginning Balance at Dec. 31, 2017	$ 343,780	$ 34,747	$ 487,230	$ (1,528)	$ (86,178)	$ 459	$ (90,950)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	32,887		32,887
Foreign currency translation adjustment (net of tax of $0)	(8,905)				(8,905)
Derivative financial instruments adjustment (net of tax benefit of $51)	(1,190)					(1,190)
Amortization of prior service costs and net gains or losses (net of tax of $1,185)	5,223						5,223
Cash dividends declared ($0.22 per share)	(7,293)		(7,293)
Stock-based compensation expense	1,981	1,981
Issued upon exercise of stock options & other	926	926
Tredegar common stock purchased by trust for savings restoration plan			16	(16)
Ending Balance at Jun. 30, 2018	367,409	37,654	512,840	(1,544)	(95,083)	(731)	(85,727)
Beginning Balance at Dec. 31, 2018	354,857	38,892	497,511	(1,559)	(96,940)	(1,601)	(81,446)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	34,261		34,261
Foreign currency translation adjustment (net of tax of $0)	(283)				(283)
Derivative financial instruments adjustment (net of tax benefit of $51)	268					268
Amortization of prior service costs and net gains or losses (net of tax of $1,185)	4,158						4,158
Cash dividends declared ($0.22 per share)	(7,320)		(7,320)
Stock-based compensation expense	3,189	3,189
Issued upon exercise of stock options & other	(854)	(854)
Tredegar common stock purchased by trust for savings restoration plan			16	(16)
Ending Balance at Jun. 30, 2019	$ 388,276	$ 41,227	$ 524,468	$ (1,575)	$ (97,223)	$ (1,333)	$ (77,288)

Consolidated Statements Of Sh_2

Consolidated Statements Of Shareholders' Equity (Parenthetical) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018
Statement of Stockholders' Equity [Abstract]
Foreign currency translation adjustment, tax (benefit)	$ 0	$ 0
Derivative financial instruments adjustment, tax (benefit)	(51)	20
Amortization of prior service costs and net gains or losses, tax	$ 1,185	$ 1,523
Cash dividends declared, per share	$ 0.22	$ 0.22

Basis Of Presentation

Basis Of Presentation	6 Months Ended
	Jun. 30, 2019
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, 2019 , the consolidated results of operations for the three and six months ended June 30, 2019 and 2018 , the consolidated cash flows for the six months ended June 30, 2019 and 2018 , and the consolidated changes in shareholders’ equity for the six months ended June 30, 2019 and 2018 , 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 2019 and 2018 for this segment references 13-week periods ended June 30, 2019 and June 24, 2018, 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, 2018 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, 2018 (“ 2018 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 2018 Form 10-K. The results of operations for the three and six months ended June 30, 2019 , 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. Cash, Cash Equivalents and Restricted Cash The following table provides a reconciliation of cash, cash equivalents and restricted cash to amounts shown in the consolidated statements of cash flows: June 30, December 31, (In thousands) 2019 2018 Cash and cash equivalents $ 34,660 $ 34,397 Restricted cash 5,109 — Total cash, cash equivalents and restricted cash $ 39,769 $ 34,397 Restricted cash as of June 30, 2019 consists of a deposit received in the second quarter of 2019 for the sale of the PE Films idle manufacturing facility in Shanghai, China, which sale closed in the third quarter of 2019. An amount offsetting the deposit is recorded as a current liability in accrued expenses. Chinese government regulations limit the use of these funds to the purposes of the liquidating entity until the completion of the liquidation process, which the Company expects to be concluded within the next twelve months.

Revenue Recognition (Notes)

Revenue Recognition (Notes)	6 Months Ended
	Jun. 30, 2019
Revenue Recognition and Deferred Revenue [Abstract]
Revenue Recognition, Sales of Goods [Policy Text Block]	As of June 30, 2019 and December 31, 2018, accounts receivable and other receivables, net, were $116.4 million and $124.7 million , respectively, made up of the following: June 30, December 31, (In thousands) 2019 2018 Customer receivables $ 115,522 $ 122,182 Other accounts and notes receivable 4,054 5,482 Total accounts and other receivables 119,576 127,664 Less: Allowance for bad debts and sales returns (3,206 ) (2,937 ) Total accounts and other receivables, net $ 116,370 $ 124,727 For the three and six months ended June 30, 2019 , the Company had no material bad-debt expense and there were no material contract assets, contract liabilities or deferred contract costs recorded on the consolidated balance sheets as of June 30, 2019 . Payment terms start from the date of satisfaction of the performance obligation and vary from COD (cash on delivery) to 120 days. The Company’s contracts generally include one performance obligation, which is satisfied at a point in time. For the three and six months ended June 30, 2019 , revenue recognized from performance obligations related to prior periods (for example, changes in transaction price), was not material. Revenue expected to be recognized in any future period related to remaining performance obligations, excluding i) revenue pertaining to contracts that have an original expected duration of one year or less, ii) contracts where revenue is recognized as invoiced and iii) variable consideration related to unsatisfied performance obligations, is not expected to materially impact the Company’s financial results.

Plants Shutdowns, Asset Impairm

Plants Shutdowns, Asset Impairments, Restructurings And Other	6 Months Ended
	Jun. 30, 2019
Restructuring Charges [Abstract]
Plant Shutdowns, Asset Impairments, Restructurings And Other	Plant shutdowns, asset impairments, restructurings, sales of assets and other items are shown in the net sales and operating profit by segment table in Note 11 and are also included in “Asset impairments and costs associated with exit and disposal activities, net of adjustments” in the consolidated statements of income, unless otherwise noted below. Plant shutdowns, asset impairments, restructurings and other items in the second quarter of 2019 include: • Pretax charges of $2.0 million for professional fees associated with remediation activities and other costs relating to the Company’s material weaknesses in internal control over financial reporting, business development activities, and implementation of new accounting guidance (included in “Selling, general and administrative expenses” in the consolidated statements of income); • Pretax charges of $1.0 million associated with the consolidation of certain PE Films manufacturing activities in the U.S. and Europe for its Personal Care business component, including the eventual shutdown of the facility in Lake Zurich, Illinois and the transfer of its production of elastics materials to the new elastics production lines in Terre Haute, Indiana. The pretax charges are comprised of severance and other employee-related accrued costs of $0.4 million ( $0.3 million for Lake Zurich), asset impairments of $0.3 million ( $0.2 million for Lake Zurich) and accelerated depreciation of $0.3 million for Lake Zurich (included in “Cost of goods sold” in the consolidated statements of income); • Pretax charges of $0.1 million for severance and other employee-related costs associated with other restructuring activities in PE Films; • Pretax charges of $0.2 million related to estimated excess costs associated with the ramp-up of new product offerings and additional expenses related to strategic capacity expansion projects by PE Films (included in “Cost of goods sold” in the consolidated statements of income); and • Pretax charges of $0.3 million associated with the shutdown of PE Films’ manufacturing facility in Shanghai, China, which consists of other facility-related costs. Plant shutdowns, asset impairments, restructurings and other items in the first six months of 2019 include: • Pretax charges of $2.9 million for professional fees associated with remediation activities and other costs relating to the Company’s material weaknesses in internal control over financial reporting, business development activities, and implementation of new accounting guidance (included in “Selling, general and administrative expenses” in the consolidated statements of income); • Pretax charges of $1.0 million associated with the consolidation of certain PE Films manufacturing activities in the U.S. and Europe for its Personal Care business component, including the eventual shutdown of the facility in Lake Zurich, Illinois and the transfer of its production of elastics materials to the new elastics production lines in Terre Haute, Indiana. The pretax charges are comprised of severance and other employee-related accrued costs of $0.4 million ( $0.3 million for Lake Zurich), asset impairments of $0.3 million ( $0.2 million for Lake Zurich) and accelerated depreciation of $0.3 million for Lake Zurich (included in “Cost of goods sold” in the consolidated statements of income); • Pretax charges of $0.4 million for the write-off of a Personal Care production line at PE Films’ Guangzhou, China facility; • Pretax charges of $0.5 million for severance and other employee-related costs associated with restructurings in PE Films; • Pretax charges of $0.4 million related to estimated excess costs associated with the ramp-up of new product offerings and additional expenses related to strategic capacity expansion projects by PE Films (included in “Cost of goods sold” in the consolidated statements of income); and • Pretax charges of $0.5 million associated with the shutdown of PE Films’ manufacturing facility in Shanghai, China, which consists of other facility-related costs. Plant shutdowns, asset impairments, restructurings and other items in the second quarter of 2018 include: • Pretax charges of $0.6 million related to estimated excess costs associated with the ramp-up of new product offerings and additional expenses related to strategic capacity expansion projects by PE Films (included in “Cost of goods sold” in the consolidated statements of income); and • Pretax charges of $0.7 million associated with the shutdown of PE Films’ manufacturing facility in Shanghai, China, which consists of severance and other employee-related accrued costs of $0.4 million , accelerated depreciation of $0.1 million (included in “Cost of goods sold” in the consolidated statements of income) and other facility consolidation-related expenses of $0.2 million . Plant shutdowns, asset impairments, restructurings and other items in the first six months of 2018 include: • Pretax charges of $1.5 million related to estimated excess costs associated with the ramp-up of new product offerings and additional expenses related to strategic capacity expansion projects by PE Films (included in “Cost of goods sold” in the consolidated statements of income); • Pretax charges of $0.3 million for professional fees associated with the Terphane Limitada worthless stock deduction, the impairment of assets of Flexible Packaging Films and determining the effect of the new U.S. federal income tax law (included in “Selling, general and administrative expenses” in the consolidated statements of income); and • Pretax charges of $0.7 million associated with the shutdown of PE Films’ manufacturing facility in Shanghai, China, which consists of severance and other employee-related accrued costs of $0.4 million , accelerated depreciation of 0.1 million (included in “Cost of goods sold” in the consolidated statements of income) and other facility consolidation-related expenses of $0.2 million . Results on the Company’s investment in kaléo, Inc. (“kaléo”), which is accounted for under the fair value method, in the second quarter and first six months of 2019 included gains of $7.1 million ( $5.6 million after taxes) and $24.2 million ( $19.9 million after taxes), which included a $17.6 million dividend, respectively, compared to gains of $5.8 million ( $4.5 million after taxes) and $14.0 million ( $10.9 million after taxes) in the second quarter and first six months of 2018 , respectively (included in “Other income (expense), net” in the consolidated statements of income). See Note 7 for additional information on investments. The Company plans to close its PE Films manufacturing facility in Lake Zurich, Illinois, which produces elastic materials. Production at the Lake Zurich plant is expected to cease during the fourth quarter of 2019 with product transfers to the new elastic production line at Terre Haute, Indiana. As a result of this plant closure, the Company expects to recognize pre-tax cash costs of $7.6 million associated with these activities comprised of (i) customer-related costs ( $0.7 million ), (ii) severance and other employee related costs ( $1.8 million ), and (iii) asset disposal and other cash costs ( $5.1 million ). In addition, the Company expects non-cash asset write-offs and accelerated depreciation of $1.6 million . Proceeds from the expected sale of Lake Zurich’s real property are estimated at approximately $5 million . The Company anticipates that these activities will be completed by the end of 2020. The Company plans to consolidate the production of certain PE Films personal care products in Europe over the next twelve months. As a result of this consolidation, the Company expects to recognize pre-tax cash costs of $1.7 million , primarily for severance and customer-related costs. In June 2018, the Company announced plans to close its facility in Shanghai, China, which primarily produced plastic films used as components for personal care products (“Shanghai transition”). Production ceased at this plant during the fourth quarter of 2018. Total expenses associated with the Shanghai transition are $3.8 million since project inception. Cash expenditures were $0.3 million and $0.5 million in the three and six months ended June 30, 2019 , respectively, and $3.0 million since project inception. An additional $0.5 million of cash expenditures is expected to be needed to complete the project, primarily for severance and other employee related costs. Proceeds from the sale of the plant facilities, which occurred in the third quarter of 2019, are expected to be $6.5 million , net of related expenses. 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, 2019 is as follows: (In thousands) Severance (a) Asset Impairments Other (b) Total Balance at January 1, 2019 $ 616 $ — $ 160 $ 776 Changes in 2019: Charges 968 695 468 2,131 Cash payments (677 ) — (523 ) (1,200 ) Charges against assets — (695 ) — (695 ) Reversed to income — — — — Balance at June 30, 2019 $ 907 $ — $ 105 $ 1,012 (a) Severance cash spent primarily includes severance payments associated with PE Films’ exit and disposal activities. (b) Other primarily includes other restructuring costs associated with the Shanghai plant shutdown.

Inventories

Inventories	6 Months Ended
	Jun. 30, 2019
Inventory, Net [Abstract]
Inventories	The components of inventories are as follows: June 30, December 31, (In thousands) 2019 2018 Finished goods $ 28,755 $ 24,938 Work-in-process 14,957 15,648 Raw materials 29,745 33,741 Stores, supplies and other 19,902 19,483 Total $ 93,359 $ 93,810

Earnings Per Share

Earnings Per Share	6 Months Ended
	Jun. 30, 2019
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) 2019 2018 2019 2018 Weighted average shares outstanding used to compute basic earnings per share 33,270 33,074 33,197 33,028 Incremental dilutive shares attributable to stock options and restricted stock 8 34 6 20 Shares used to compute diluted earnings per share 33,278 33,108 33,203 33,048 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. For the three and six months ended June 30, 2019 , 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 1,474,762 and 1,225,333 , respectively. For the three and six months ended June 30, 2018 , 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 215,903 and 264,868 , respectively.

Leasing (Notes)

Leasing (Notes)	6 Months Ended
	Jun. 30, 2019
Leases [Abstract]
Lessee, Operating Leases [Text Block]	Tredegar has various lease agreements with terms up to 12 years, including leases of real estate, office equipment and vehicles. Some leases include options to purchase, terminate or extend for one or more years. These options are included in the lease term when it is reasonably certain that the option will be exercised. At inception, the Company determines if an arrangement contains a lease and whether that lease meets the classification criteria of a finance or operating lease. The Company has elected to not record short-term leases with an original lease term of one year or less in the consolidated balance sheet. To the extent such leases contain renewal options that the Company intends to exercise, the related ROU asset and lease liability are included in the consolidated balance sheet. Some of the Company’s lease arrangements contain lease components (e.g. minimum rent payments) and non-lease components (e.g. maintenance, labor charges, etc.). The Company generally accounts for the lease and non-lease components as a single lease component. Certain of the Company’s lease agreements include rental payments that are adjusted periodically for an index or rate. The leases are initially measured using the projected payments adjusted for the index or rate in effect at the commencement date. The Company’s lease agreements do not contain any material residual value guarantees or material restrictive covenants. Operating Leases Operating leases are included in “Right-of-use lease assets”, “Lease liabilities - short-term” and “Lease liabilities - long-term” on the consolidated balance sheets. These assets and liabilities are recognized at the commencement date based on the present value of remaining lease payments over the lease term using the Company’s secured incremental borrowing rates, adjusted for term and geographic location using country-based swap rates. From reviewing the lease contracts in the implementation effort, the Company found no instance where it could readily determine the rate implicit in the lease. Lease expense for operating leases is recognized on a straight-line basis over the lease term. Variable lease expense is recognized in the period in which the obligation for those payments is incurred. Depending upon the specific use of the ROU asset, lease expense is included in the “Cost of goods sold”, “Freight”, “Selling, general and administrative”, and “Research and development” line items on the consolidated statements of income. Lease income is not material to the results of operations for the three and six months ended June 30, 2019 . The following table presents information about the amount, timing and uncertainty of cash flows arising from the Company’s operating leases as of June 30, 2019 . (In thousands) As of June 30, 2019 Maturity of Lease Liabilities Future Lease Payments 2019 (remaining) 1,747 2020 3,507 2021 3,397 2022 2,484 2023 2,378 Thereafter 12,288 Total undiscounted operating lease payments 25,801 Less: Imputed interest 4,625 Present value of operating lease liabilities 21,176 Balance Sheet Classification Lease liabilities, short-term 2,650 Lease liabilities, long-term 18,526 Total operating lease liabilities 21,176 Other Information: Weighted-average remaining lease term for operating leases 9 Years Weighted-average discount rate for operating leases 4.34 % Rental expense was $5.2 million in 2018. Rental commitments under all noncancellable leases as of December 31, 2018, were as follows: (In thousands) 2019 $ 4,445 2020 4,007 2021 3,591 2022 2,391 2023 1,245 Remainder 2,630 Total minimum lease payments $ 18,309 Cash Flows An initial right-of-use asset of $21 million was recognized as a non-cash asset addition and an initial lease liability of $22 million was recognized as a non-cash liability addition with the adoption of the new lease accounting standard. Operating Lease Costs Operating lease costs were $1.5 million and $2.9 million in the second quarter and first six months of 2019, respectively. These costs are primarily related to long-term operating leases, but also include amounts for variable leases and short-term leases.

Accumulated Other Comprehensive

Accumulated Other Comprehensive Income (Loss)	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018
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, 2019 : (In thousands) Foreign currency translation adjustment Gain (loss) on derivative financial instruments Pension and other post-retirement benefit adjustments 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 ) The following table summarizes the after-tax changes in accumulated other comprehensive income (loss) for the six months ended June 30, 2018 : (In Thousands) Foreign Gain (loss) on Pension and Total Beginning balance, January 1, 2018 $ (86,178 ) $ 459 $ (90,950 ) $ (176,669 ) Other comprehensive income (loss) before reclassifications (8,905 ) (829 ) — (9,734 ) Amounts reclassified from accumulated other comprehensive income (loss) — (361 ) 5,223 4,862 Net other comprehensive income (loss) - current period (8,905 ) (1,190 ) 5,223 (4,872 ) Ending balance, June 30, 2018 $ (95,083 ) $ (731 ) $ (85,727 ) $ (181,541 ) Reclassifications of balances out of accumulated other comprehensive income (loss) into net income (loss) 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 taxes 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 taxes 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 (loss) 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 taxes 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 taxes 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). Reclassifications of balances out of accumulated other comprehensive income (loss) into net income for the three months ended June 30, 2018 are summarized as follows: (In Thousands) Amount Location of gain Gain (loss) on derivative financial instruments: Aluminum future contracts, before taxes $ 712 Cost of sales Foreign currency forward contracts, before taxes (378 ) Selling, general & administrative Foreign currency forward contracts, before taxes 16 Cost of sales Total, before taxes 350 Income tax expense (benefit) 142 Income taxes Total, net of tax $ 208 Amortization of pension and other post-retirement benefits: Actuarial gain (loss) and prior service costs, before taxes $ (3,372 ) (a) Income tax expense (benefit) (761 ) Income taxes Total, net of tax $ (2,611 ) (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, 2018 are summarized as follows: (In thousands) Amount Location of gain (loss) reclassified from accumulated other comprehensive income to net income Gain (loss) on derivative financial instruments: Aluminum future contracts, before taxes $ 944 Cost of sales Foreign currency forward contracts, before taxes (419 ) Selling, general & adminstrative Foreign currency forward contracts, before taxes 31 Cost of sales Total, before taxes 556 Income tax expense (benefit) 195 Income taxes Total, net of tax $ 361 Amortization of pension and other post-retirement benefits: Actuarial gain (loss) and prior service costs, before taxes $ (6,746 ) (a) Income tax expense (benefit) (1,523 ) Income taxes Total, net of tax $ (5,223 ) (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, 2019 : (In thousands) Foreign currency translation adjustment Gain (loss) on derivative financial instruments Pension and other post-retirement benefit adjustments 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 )	The following table summarizes the after-tax changes in accumulated other comprehensive income (loss) for the six months ended June 30, 2018 : (In Thousands) Foreign Gain (loss) on Pension and Total Beginning balance, January 1, 2018 $ (86,178 ) $ 459 $ (90,950 ) $ (176,669 ) Other comprehensive income (loss) before reclassifications (8,905 ) (829 ) — (9,734 ) Amounts reclassified from accumulated other comprehensive income (loss) — (361 ) 5,223 4,862 Net other comprehensive income (loss) - current period (8,905 ) (1,190 ) 5,223 (4,872 ) Ending balance, June 30, 2018 $ (95,083 ) $ (731 ) $ (85,727 ) $ (181,541 )

Investments

Investments	6 Months Ended
	Jun. 30, 2019
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, 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 20% 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 $91.2 million as of June 30, 2019 and $84.6 million as of December 31, 2018 . The Company recognized a dividend from and net appreciation on its investment in kaléo of $7.1 million ( $5.6 million after taxes) and $24.2 million ( $19.9 million after taxes) in the second quarter and first six months of 2019 , respectively, including a $17.6 million cash dividend declared by kaléo on March 29, 2019 and 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 segment operating profit table in Note 11. The Company estimates the fair value of its investment in kaléo 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 15% 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, 2019 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, 2018. 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 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, 2019 , 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 5.1 x 6.1 x 7.1 x 8.1 x 9.1 x Weighting to DCF Method 50 % $ 75.4 $ 83.3 $ 91.2 $ 99.1 $ 107.0 40 % $ 72.3 $ 81.7 $ 91.2 $ 100.7 $ 110.2 30 % $ 69.1 $ 80.1 $ 91.2 $ 102.3 $ 113.3 20 % $ 65.9 $ 78.6 $ 91.2 $ 103.8 $ 116.5 10 % $ 62.7 $ 77.0 $ 91.2 $ 105.4 $ 119.6 0 % $ 59.6 $ 75.4 $ 91.2 $ 107.0 $ 122.8 The ultimate value of the Company’s ownership interest in kaléo will be determined and realized only if and when a liquidity event occurs, and the ultimate value could be materially different from the $91.2 million estimated fair value reflected in the Company’s financial statements at June 30, 2019 .

Derivative Financial Instrument

Derivative Financial Instruments	6 Months Ended
	Jun. 30, 2019
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, and the notional amount of aluminum futures contracts that hedged future purchases of aluminum to meet fixed-price forward sales contract obligations was $19.8 million ( 18.0 million pounds of aluminum) at June 30, 2019 and $25.4 million ( 22.5 million pounds of aluminum) at December 31, 2018 . 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, 2019 and December 31, 2018 : June 30, 2019 December 31, 2018 (In thousands) Balance Sheet Account Fair Value Balance Sheet Account Fair Value Derivatives Designated as Hedging Instruments Asset derivatives: Accrued expenses $ — Accrued expenses $ 20 Liability derivatives: Accrued expenses (1,845 ) Accrued expenses $ (1,650 ) Net asset (liability) $ (1,845 ) $ (1,630 ) 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, 2019 and December 31, 2018 : June 30, 2019 December 31, 2018 (In Thousands) Balance Sheet Fair Balance Sheet Fair Derivatives Designated as Hedging Instruments Asset derivatives: Prepaid expenses and other $ 198 Prepaid expenses and other $ 37 Liability derivatives: Accrued expenses (651 ) Accrued expenses (1,090 ) Net asset (liability) $ (453 ) $ (1,053 ) 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 between Flexible Packaging Films business unit in Brazil, Terphane Ltda.'s (“Terphane Ltda.”) U.S. Dollar quoted or priced sales and underlying Brazilian Real (“R$”) quoted or priced operating costs (excluding depreciation and amortization) is annual net costs of R$125 million . Terphane Ltda. has the following outstanding foreign exchange average forward rate contracts to purchase Brazilian Real and sell U.S. Dollars: USD Notional Amount (000s) Average Forward Rate Contracted on USD/BRL R$ Equivalent Amount (000s) Applicable Month Estimated % of Terphane Ltda. R$ Operating Cost Exposure Hedged $1,800 3.8826 R$6,989 Jul-19 65% $1,800 3.8950 R$7,011 Aug-19 68% $1,800 3.9070 R$7,033 Sep-19 66% $1,800 3.9203 R$7,056 Oct-19 67% $1,800 3.9331 R$7,080 Nov-19 67% $1,800 3.9455 R$7,102 Dec-19 73% $1,400 3.8256 R$5,356 Jan-20 51% $1,400 3.8331 R$5,366 Feb-20 52% $1,400 3.8377 R$5,373 Mar-20 49% $1,400 3.8456 R$5,384 Apr-20 50% $1,400 3.8539 R$5,395 May-20 51% $1,400 3.8621 R$5,407 Jun-20 50% $1,400 3.8727 R$5,422 Jul-20 48% $1,400 3.8850 R$5,439 Aug-20 50% $1,400 3.8964 R$5,455 Sep-20 49% $1,400 3.9079 R$5,471 Oct-20 50% $1,400 3.9187 R$5,486 Nov-20 50% $1,400 3.9306 R$5,503 Dec-20 54% $27,600 3.8887 R$107,328 56% 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 net fair value of the open forward contracts was a negative $0.5 million as of June 30, 2019 . 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, 2019 and 2018 is summarized in the table below: (In thousands) Cash Flow Derivative Hedges Three Months Ended June 30, Aluminum Futures Contracts Foreign Currency Forwards 2019 2018 2019 2019 2018 2018 Amount of pretax gain (loss) recognized in other comprehensive income (loss) $ (1,192 ) $ 1,457 $ — $ 719 $ — (1,849 ) 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) $ (606 ) $ 712 $ 16 $ (369 ) $ 16 (378 ) Six Months Ended June 30, Aluminum Futures Contracts Foreign Currency Forwards 2019 2018 2019 2019 2018 2018 Amount of pre-tax gain (loss) recognized in other comprehensive income (loss) $ (1,438 ) $ 1,065 $ — $ (97 ) $ — (1,679 ) 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) $ (1,223 ) $ 944 $ 31 $ (560 ) $ 31 (419 ) As of June 30, 2019 , the Company expects $1.3 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, 2019 and 2018 , 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, 2019
Retirement Benefits [Abstract]
Pension And Other Post-Retirement Benefits	The components of net periodic benefit cost for the pension and other postretirement benefit programs reflected in the consolidated statements of income are shown below: Pension Benefits Other PostRetirement Benefits Three Months Ended June 30, Three Months Ended June 30, (In thousands) 2019 2018 2019 2018 Service cost $ — $ 5 $ 8 $ 10 Interest cost 3,068 2,882 73 69 Expected return on plan assets (3,404 ) (3,761 ) — — Amortization of prior service costs, (gains) losses and net transition asset 2,730 3,428 (57 ) (54 ) Net periodic benefit cost $ 2,394 $ 2,554 $ 24 $ 25 Pension Benefits Other Post-Retirement Benefits Six Months Ended June 30, Six Months Ended June 30, 2019 2018 2019 2018 Service cost $ — $ 10 $ 16 $ 20 Interest cost 6,135 5,764 146 138 Expected return on plan assets (6,808 ) (7,522 ) — — Amortization of prior service costs, (gains) losses and net transition asset 5,459 6,856 (115 ) (108 ) Net periodic benefit cost $ 4,786 $ 5,108 $ 47 $ 50 Pension and other postretirement liabilities were $84.6 million and $88.8 million at June 30, 2019 and December 31, 2018 , respectively ( $0.6 million included in “Accrued expenses” at June 30, 2019 and December 31, 2018 , with the remainder included in “Pension and other postretirement benefit obligations, net” in the consolidated balance sheets). The Company’s required contributions are expected to be $8.1 million in 2019 . Contributions to the pension plan during the first six months of 2019 were $3.6 million . Tredegar funds its other postretirement benefits (life insurance and health benefits) on a claims-made basis; for 2019 , the Company anticipates the amount will be consistent with amounts paid for the year ended December 31, 2018 , or $0.3 million .

Other Income (Expense), Net (No

Other Income (Expense), Net (Notes)	6 Months Ended
	Jun. 30, 2019
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) 2019 2018 2019 2018 Gain on investment in kaléo accounted for under fair value method $ 7,100 $ 5,800 $ 24,182 $ 14,000 Other (4 ) 57 24 89 Total $ 7,096 $ 5,857 $ 24,206 $ 14,089 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, 2019
Segment Reporting [Abstract]
Segment Reporting	The Company’s business segments are PE Films, Flexible Packaging Films and Aluminum Extrusions. Information by business segment is reported below. There are no accounting transactions between segments and no allocations to segments. Net sales (sales less freight) and operating profit from ongoing operations are the measures of sales and operating profit used by the chief operating decision maker for purposes of assessing performance. The following table presents net sales and operating profit by segment for the three and six months ended June 30, 2019 and 2018 : Three Months Ended June 30, Six Months Ended June 30, (In thousands) 2019 2018 2019 2018 Net Sales PE Films $ 69,161 $ 82,457 $ 135,941 $ 175,707 Flexible Packaging Films 33,443 28,304 67,062 56,741 Aluminum Extrusions 136,757 144,558 275,804 272,793 Total net sales 239,361 255,319 478,807 505,241 Add back freight 8,887 8,440 17,907 17,229 Sales as shown in the Consolidated Statements of Income $ 248,248 $ 263,759 $ 496,714 $ 522,470 Operating Profit (Loss) PE Films: Ongoing operations $ 7,766 $ 8,678 $ 10,717 $ 22,712 Plant shutdowns, asset impairments, restructurings and other (1,523 ) (1,135 ) (2,901 ) (2,187 ) Flexible Packaging Films: Ongoing operations 2,517 1,294 5,377 3,008 Plant shutdowns, asset impairments, restructurings and other — — — — Aluminum Extrusions: Ongoing operations 14,518 13,156 26,603 23,355 Plant shutdowns, asset impairments, restructurings and other (17 ) (46 ) (57 ) (99 ) Total 23,261 21,947 39,739 46,789 Interest income 48 228 107 284 Interest expense 1,263 1,577 2,495 3,221 Gain (loss) on investment in kaléo accounted for under fair value method 7,100 5,800 24,182 14,000 Stock option-based compensation costs 898 305 1,313 391 Corporate expenses, net 9,331 6,824 17,492 14,740 Income (loss) before income taxes 18,917 19,269 42,728 42,721 Income taxes (benefit) 4,440 4,547 8,467 9,834 Net income (loss) $ 14,477 $ 14,722 $ 34,261 $ 32,887 The following table presents identifiable assets by segment at June 30, 2019 and December 31, 2018 : (In thousands) June 30, 2019 December 31, 2018 PE Films $ 232,316 $ 231,720 Flexible Packaging Films 63,826 58,964 Aluminum Extrusions 288,715 281,372 Subtotal 584,857 572,056 General corporate 105,474 100,920 Cash, cash equivalents and restricted cash 39,769 34,397 Total $ 730,100 $ 707,373 The following tables disaggregate the Company’s revenue by geographic area and product group for the three and six months ended June 30, 2019 and 2018 : Net Sales by Geographic Area (a) Three Months Ended June 30, Six Months Ended June 30, (In thousands) 2019 2018 2019 2018 United States $ 162,788 $ 171,185 $ 335,042 $ 330,747 Exports from the United States to: Asia 24,513 18,884 38,006 42,476 Canada 5,872 14,239 9,477 27,537 Europe 1,517 1,697 2,877 3,519 Latin America 2,670 3,654 5,537 6,706 Operations outside the United States: Brazil 27,582 23,659 55,721 46,811 The Netherlands 8,450 11,394 18,037 23,322 Hungary 5,162 8,519 11,996 17,337 China — 1,692 230 3,966 India 807 396 1,884 2,820 Total $ 239,361 $ 255,319 $ 478,807 $ 505,241 Net Sales by Product Group Three Months Ended June 30, Six Months Ended June 30, (In thousands) 2019 2018 2019 2018 PE Films: Personal care materials 37,956 55,985 82,812 117,629 Surface protection films 29,253 24,918 49,142 54,733 LED lighting products & other films 1,952 1,555 3,987 3,345 Subtotal 69,161 82,458 135,941 175,707 Flexible Packaging Films 33,443 28,304 67,062 56,741 Aluminum Extrusions: Nonresidential building & construction 69,019 72,442 138,657 137,629 Consumer durables 16,381 17,161 31,926 32,309 Distribution 8,739 12,031 17,312 22,961 Automotive 12,496 11,157 25,123 20,787 Residential building & construction 10,278 12,343 21,950 21,813 Machinery & equipment 9,471 9,867 19,394 19,144 Electrical 10,373 9,556 21,442 18,150 Subtotal 136,757 144,557 275,804 272,793 Total 239,361 255,319 478,807 505,241 See the previous page for a reconciliation of net sales to sales (as shown in the consolidated statements of income). (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. Sales from locations in China (Guangzhou and Shanghai) are primarily to customers located in China, but also include other customers in Asia.

Income Taxes

Income Taxes	6 Months Ended
	Jun. 30, 2019
Income Tax Disclosure [Abstract]
Income Taxes	Tredegar recorded tax expense of $8.5 million on pretax net income of $42.7 million in the first six months of 2019 . Therefore, the effective tax rate in the first six months of 2019 was 19.8% , compared to 23.0% in the first six months of 2018 . 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, 2019 and 2018 are as follows: (In thousands, except percentages) 2019 2018 Six Months Ended June 30, Amount % Amount % Income tax expense at federal statutory rate $ 8,972 21.0 $ 8,971 21.0 U.S. Tax on Foreign Branch Income 1,808 5.0 736 1.7 Foreign rate differences 1,191 3.3 669 1.6 State taxes, net of federal income tax benefit 468 1.1 537 1.2 Non-deductible expenses 217 0.6 123 0.3 Changes in estimates related to prior year tax provision 152 0.4 (34 ) (0.1 ) Valuation allowance for capital loss carry-forwards — — 91 0.2 Stock-based compensation (141 ) (0.4 ) 176 0.4 Tax contingency accruals and tax settlements (154 ) (0.4 ) 100 0.2 Research and development tax credit (255 ) (0.7 ) (188 ) (0.4 ) Foreign Derived Intangible Income (FDII) (445 ) (1.2 ) (309 ) (0.7 ) Tax impact of dividend received (919 ) (2.2 ) — — Foreign tax incentives (1,074 ) (3.0 ) (655 ) (1.5 ) Valuation allowance due to foreign losses and impairments (1,353 ) (3.7 ) (383 ) (0.9 ) Effective income tax rate $ 8,467 19.8 $ 9,834 23.0 Tredegar accrues U.S. federal income taxes on unremitted earnings of all 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 10 -year period, from the commencement date of January 1, 2015. The benefit from the tax incentives was $1.1 million and $0.7 million in the first six months of 2019 and 2018 , 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 2014. The Company includes tax-related interest and penalties in income tax expense. As of June 30, 2019 , $0.2 million of interest and penalties are accrued as a tax liability. During the first half of 2019 , a minimal amount of net interest income was recorded.

New Accounting Pronouncements

New Accounting Pronouncements	6 Months Ended
	Jun. 30, 2019
New Accounting Pronouncements and Changes in Accounting Principles [Abstract]
New Accounting Pronouncements	New accounting pronouncements adopted in 2019: ASU 2016-02, LEASES (TOPIC 842) In February 2016, the Financial Accounting Standards Board (“FASB”) issued a revised standard on lease accounting. Lessees will need to recognize virtually all of their leases with a term longer than 12 months on the balance sheet, by recording a right-of-use (“ROU”) asset and lease liability. The revised standard requires additional analysis of the components of a transaction to determine if a right-of-use asset is embedded in the transaction that needs to be treated as a lease. Substantial additional disclosures are also required by the revised standard. The revised standard is effective for the Company for fiscal years beginning after December 31, 2018, including the interim periods within those fiscal years. A modified retrospective transition approach which requires a cumulative-effect adjustment to the opening balance of retained earnings on the effective date is required for leases existing at, or entered into after, the effective date, with certain practical expedients available. The Company elected to use certain transition practical expedients that allow it to elect to not reassess: i) whether expired or existing contracts contain leases under the new definition of a lease; ii) lease classification for expired or existing leases; and iii) whether previously capitalized initial direct costs would qualify for capitalization under Topic 842. The Company adopted the new guidance in the first quarter of 2019, electing the modified retrospective transition approach. The adoption did not have a material effect on the Company’s consolidated financial statements. The most significant impact of the new standard was the recognition of new ROU assets of approximately $21 million and lease liabilities of approximately $22 million for real estate, office equipment and vehicle operating leases. ASU 2017-12, DERIVATIVES AND HEDGING (TOPIC 815) In August 2017, the FASB issued amended guidance on the accounting for hedging activities. The amended guidance makes more hedging strategies qualify for hedge accounting. After initial qualification, the amended guidance permits a qualitative effectiveness assessment for certain hedges instead of a quantitative test, if the company can reasonably support an expectation of effectiveness throughout the term of the hedge. The amended guidance is effective for annual and interim periods beginning after January 1, 2019, but may be adopted immediately. The Company adopted the amended guidance in the first quarter of 2019 and there was no impact from adoption on the Company’s consolidated financial statements. ASU 2018-2, REPORTING COMPREHENSIVE INCOME (TOPIC 220) In February 2018, the FASB issued ASU 2018-2 to provide entities an option to reclassify certain “stranded tax effects” resulting from the recent U.S. tax reform from accumulated other comprehensive income (AOCI) to retained earnings. This new standard takes effect for all entities in fiscal years beginning after December 15, 2018, and interim periods within those fiscal years. The Company has elected to not reclassify the income tax effects resulting from tax reform from AOCI to retained earnings. Accounting Standards Not Yet Implemented: ASU 2016-13, FINANCIAL INSTRUMENTS - CREDIT LOSSES (TOPIC 326) In June 2016, the FASB issued 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. This standard is effective for fiscal years beginning after December 15, 2019 and interim periods therein, with early adoption permitted for fiscal years, and interim periods therein, beginning after December 15, 2018. The Company is in the process of evaluating the guidance and expects to adopt ASU 2016-13 in the first quarter of 2020, with no material impact on the Company’s consolidated financial statements. 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. Early adoption is permitted for all amendments. Further, a company may elect to early adopt the removal or modification of disclosures immediately and delay adoption of the new disclosure requirements until the effective date. The Company plans to adopt all disclosure requirements in the first quarter of 2020, with no material impact on the Company’s consolidated financial statements.

Debt (Notes)

Debt (Notes)	6 Months Ended
	Jun. 30, 2019
Debt Instrument [Line Items]
Long-term Debt [Text Block]	DEBT On June 28, 2019, Tredegar entered into a $500 million five-year, secured revolving credit agreement (“Credit Agreement”), with an option to increase that amount by $100 million . The Credit Agreement amends and restates the Company’s previous $400 million five-year, secured revolving credit agreement that was due to expire on March 1, 2021. Borrowings under the Credit Agreement bear an interest rate of LIBOR plus a credit spread and commitment fees charged on the unused amount under the Credit Agreement at various indebtedness-to-adjusted EBITDA levels as follows: Pricing Under Credit Revolving Agreement (Basis Points) Indebtedness-to-Adjusted EBITDA Ratio Credit Spread Over LIBOR Commitment Fee > 3.5x but <= 4.0x 200.0 40 > 3.0x but <= 3.5x 187.5 35 > 2.0x but <= 3.0x 175.0 30 > 1.0x but <= 2.0x 162.5 25 <= 1.0x 150.0 20 At June 30, 2019, the interest cost on debt borrowed under the Credit Agreement was priced at one-month LIBOR plus the applicable credit spread of 162.5 basis points. The most restrictive covenants in the Credit Agreement include: • Maximum indebtedness-to-adjusted EBITDA (“Leverage Ratio”) of 4.00 x; • Minimum adjusted EBITDA-to-interest expense of 3.00 x; and • Maximum aggregate distributions to shareholders over the term of the Credit Agreement of $130 million plus, beginning with the fiscal quarter ended June 30, 2019, 50% of net income and, at a Leverage Ratio of equal to or greater than 3.00 x, a limitation on such payments for the succeeding quarter at the greater of (i) $4.75 million and (ii) 50% of consolidated net income for the most recent fiscal quarter. The Credit Agreement is secured by substantially all of the Company’s and its domestic subsidiaries’ assets, including equity in certain material first-tier foreign subsidiaries. As of June 30, 2019, Tredegar was in compliance with all financial covenants in the Credit Agreement.

Basis Of Presentation Restrict

Basis Of Presentation Restrict Cash Reconciliation Table (Tables)	6 Months Ended
	Jun. 30, 2019
Cash, Cash Equivalents and Restricted Cash Reconciliation Table [Abstract]
Schedule of Cash and Cash Equivalents [Table Text Block]	The following table provides a reconciliation of cash, cash equivalents and restricted cash to amounts shown in the consolidated statements of cash flows: June 30, December 31, (In thousands) 2019 2018 Cash and cash equivalents $ 34,660 $ 34,397 Restricted cash 5,109 — Total cash, cash equivalents and restricted cash $ 39,769 $ 34,397

Revenue Recognition (Tables)

Revenue Recognition (Tables)	6 Months Ended
	Jun. 30, 2019
Accounts, Notes, Loans and Financing Receivable [Line Items]
Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block]	As of June 30, 2019 and December 31, 2018, accounts receivable and other receivables, net, were $116.4 million and $124.7 million , respectively, made up of the following: June 30, December 31, (In thousands) 2019 2018 Customer receivables $ 115,522 $ 122,182 Other accounts and notes receivable 4,054 5,482 Total accounts and other receivables 119,576 127,664 Less: Allowance for bad debts and sales returns (3,206 ) (2,937 ) Total accounts and other receivables, net $ 116,370 $ 124,727

Plants Shutdowns, Asset Impai_2

Plants Shutdowns, Asset Impairments, Restructurings And Other (Tables)	6 Months Ended
	Jun. 30, 2019
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, 2019 is as follows: (In thousands) Severance (a) Asset Impairments Other (b) Total Balance at January 1, 2019 $ 616 $ — $ 160 $ 776 Changes in 2019: Charges 968 695 468 2,131 Cash payments (677 ) — (523 ) (1,200 ) Charges against assets — (695 ) — (695 ) Reversed to income — — — — Balance at June 30, 2019 $ 907 $ — $ 105 $ 1,012 (a) Severance cash spent primarily includes severance payments associated with PE Films’ exit and disposal activities. (b) Other primarily includes other restructuring costs associated with the Shanghai plant shutdown.

Inventories (Tables)

Inventories (Tables)	6 Months Ended
	Jun. 30, 2019
Inventory, Net [Abstract]
Schedule of Inventory, Current	The components of inventories are as follows: June 30, December 31, (In thousands) 2019 2018 Finished goods $ 28,755 $ 24,938 Work-in-process 14,957 15,648 Raw materials 29,745 33,741 Stores, supplies and other 19,902 19,483 Total $ 93,359 $ 93,810

Earnings Per Share (Tables)

Earnings Per Share (Tables)	6 Months Ended
	Jun. 30, 2019
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) 2019 2018 2019 2018 Weighted average shares outstanding used to compute basic earnings per share 33,270 33,074 33,197 33,028 Incremental dilutive shares attributable to stock options and restricted stock 8 34 6 20 Shares used to compute diluted earnings per share 33,278 33,108 33,203 33,048

Leasing (Tables)

Leasing (Tables)	6 Months Ended	12 Months Ended
	Jun. 30, 2019	Dec. 31, 2018
Leases [Abstract]
Lessee, Operating Lease, Liability, Maturity [Table Text Block]	The following table presents information about the amount, timing and uncertainty of cash flows arising from the Company’s operating leases as of June 30, 2019 . (In thousands) As of June 30, 2019 Maturity of Lease Liabilities Future Lease Payments 2019 (remaining) 1,747 2020 3,507 2021 3,397 2022 2,484 2023 2,378 Thereafter 12,288 Total undiscounted operating lease payments 25,801 Less: Imputed interest 4,625 Present value of operating lease liabilities 21,176 Balance Sheet Classification Lease liabilities, short-term 2,650 Lease liabilities, long-term 18,526 Total operating lease liabilities 21,176 Other Information: Weighted-average remaining lease term for operating leases 9 Years Weighted-average discount rate for operating leases 4.34 %
Schedule of Future Minimum Rental Payments for Operating Leases [Table Text Block]		Rental commitments under all noncancellable leases as of December 31, 2018, were as follows: (In thousands) 2019 $ 4,445 2020 4,007 2021 3,591 2022 2,391 2023 1,245 Remainder 2,630 Total minimum lease payments $ 18,309

Accumulated Other Comprehensi_2

Accumulated Other Comprehensive Income (Loss) (Tables)	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
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, 2019 : (In thousands) Foreign currency translation adjustment Gain (loss) on derivative financial instruments Pension and other post-retirement benefit adjustments 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 )	The following table summarizes the after-tax changes in accumulated other comprehensive income (loss) for the six months ended June 30, 2018 : (In Thousands) Foreign Gain (loss) on Pension and Total Beginning balance, January 1, 2018 $ (86,178 ) $ 459 $ (90,950 ) $ (176,669 ) Other comprehensive income (loss) before reclassifications (8,905 ) (829 ) — (9,734 ) Amounts reclassified from accumulated other comprehensive income (loss) — (361 ) 5,223 4,862 Net other comprehensive income (loss) - current period (8,905 ) (1,190 ) 5,223 (4,872 ) Ending balance, June 30, 2018 $ (95,083 ) $ (731 ) $ (85,727 ) $ (181,541 )
Schedule Of Reclassifications Of Balances Out Of Accumulated Other Comprehensive Income (Loss) Into Net Income	(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 taxes 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 taxes 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 three months ended June 30, 2018 are summarized as follows: (In Thousands) Amount Location of gain Gain (loss) on derivative financial instruments: Aluminum future contracts, before taxes $ 712 Cost of sales Foreign currency forward contracts, before taxes (378 ) Selling, general & administrative Foreign currency forward contracts, before taxes 16 Cost of sales Total, before taxes 350 Income tax expense (benefit) 142 Income taxes Total, net of tax $ 208 Amortization of pension and other post-retirement benefits: Actuarial gain (loss) and prior service costs, before taxes $ (3,372 ) (a) Income tax expense (benefit) (761 ) Income taxes Total, net of tax $ (2,611 ) (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, 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 taxes 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 taxes 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, 2019
Investments at Fair Value [Abstract]
Fair Value Measurements, Sensitivity Analysis, Description	he table below provides a sensitivity analysis of the estimated fair value at June 30, 2019 , 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 5.1 x 6.1 x 7.1 x 8.1 x 9.1 x Weighting to DCF Method 50 % $ 75.4 $ 83.3 $ 91.2 $ 99.1 $ 107.0 40 % $ 72.3 $ 81.7 $ 91.2 $ 100.7 $ 110.2 30 % $ 69.1 $ 80.1 $ 91.2 $ 102.3 $ 113.3 20 % $ 65.9 $ 78.6 $ 91.2 $ 103.8 $ 116.5 10 % $ 62.7 $ 77.0 $ 91.2 $ 105.4 $ 119.6 0 % $ 59.6 $ 75.4 $ 91.2 $ 107.0 $ 122.8

Derivative Financial Instrume_2

Derivative Financial Instruments (Tables)	6 Months Ended
	Jun. 30, 2019
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, 2019 and December 31, 2018 : June 30, 2019 December 31, 2018 (In Thousands) Balance Sheet Fair Balance Sheet Fair Derivatives Designated as Hedging Instruments Asset derivatives: Prepaid expenses and other $ 198 Prepaid expenses and other $ 37 Liability derivatives: Accrued expenses (651 ) Accrued expenses (1,090 ) Net asset (liability) $ (453 ) $ (1,053 ) 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, 2019 and December 31, 2018 : June 30, 2019 December 31, 2018 (In thousands) Balance Sheet Account Fair Value Balance Sheet Account Fair Value Derivatives Designated as Hedging Instruments Asset derivatives: Accrued expenses $ — Accrued expenses $ 20 Liability derivatives: Accrued expenses (1,845 ) Accrued expenses $ (1,650 ) Net asset (liability) $ (1,845 ) $ (1,630 )
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, 2019 and 2018 is summarized in the table below: (In thousands) Cash Flow Derivative Hedges Three Months Ended June 30, Aluminum Futures Contracts Foreign Currency Forwards 2019 2018 2019 2019 2018 2018 Amount of pretax gain (loss) recognized in other comprehensive income (loss) $ (1,192 ) $ 1,457 $ — $ 719 $ — (1,849 ) 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) $ (606 ) $ 712 $ 16 $ (369 ) $ 16 (378 ) Six Months Ended June 30, Aluminum Futures Contracts Foreign Currency Forwards 2019 2018 2019 2019 2018 2018 Amount of pre-tax gain (loss) recognized in other comprehensive income (loss) $ (1,438 ) $ 1,065 $ — $ (97 ) $ — (1,679 ) 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) $ (1,223 ) $ 944 $ 31 $ (560 ) $ 31 (419 )

Derivative Financial Instrume_3

Derivative Financial Instruments Foreign Currency Forward Contracts Table (Tables)	6 Months Ended
	Jun. 30, 2019
Derivative [Line Items]
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, 2019 and December 31, 2018 : June 30, 2019 December 31, 2018 (In Thousands) Balance Sheet Fair Balance Sheet Fair Derivatives Designated as Hedging Instruments Asset derivatives: Prepaid expenses and other $ 198 Prepaid expenses and other $ 37 Liability derivatives: Accrued expenses (651 ) Accrued expenses (1,090 ) Net asset (liability) $ (453 ) $ (1,053 ) 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, 2019 and December 31, 2018 : June 30, 2019 December 31, 2018 (In thousands) Balance Sheet Account Fair Value Balance Sheet Account Fair Value Derivatives Designated as Hedging Instruments Asset derivatives: Accrued expenses $ — Accrued expenses $ 20 Liability derivatives: Accrued expenses (1,845 ) Accrued expenses $ (1,650 ) Net asset (liability) $ (1,845 ) $ (1,630 )
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, and the notional amount of aluminum futures contracts that hedged future purchases of aluminum to meet fixed-price forward sales contract obligations was $19.8 million ( 18.0 million pounds of aluminum) at June 30, 2019 and $25.4 million ( 22.5 million pounds of aluminum) at December 31, 2018 . 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, 2019 and December 31, 2018 : June 30, 2019 December 31, 2018 (In thousands) Balance Sheet Account Fair Value Balance Sheet Account Fair Value Derivatives Designated as Hedging Instruments Asset derivatives: Accrued expenses $ — Accrued expenses $ 20 Liability derivatives: Accrued expenses (1,845 ) Accrued expenses $ (1,650 ) Net asset (liability) $ (1,845 ) $ (1,630 ) 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, 2019 and December 31, 2018 : June 30, 2019 December 31, 2018 (In Thousands) Balance Sheet Fair Balance Sheet Fair Derivatives Designated as Hedging Instruments Asset derivatives: Prepaid expenses and other $ 198 Prepaid expenses and other $ 37 Liability derivatives: Accrued expenses (651 ) Accrued expenses (1,090 ) Net asset (liability) $ (453 ) $ (1,053 ) 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 between Flexible Packaging Films business unit in Brazil, Terphane Ltda.'s (“Terphane Ltda.”) U.S. Dollar quoted or priced sales and underlying Brazilian Real (“R$”) quoted or priced operating costs (excluding depreciation and amortization) is annual net costs of R$125 million . Terphane Ltda. has the following outstanding foreign exchange average forward rate contracts to purchase Brazilian Real and sell U.S. Dollars: USD Notional Amount (000s) Average Forward Rate Contracted on USD/BRL R$ Equivalent Amount (000s) Applicable Month Estimated % of Terphane Ltda. R$ Operating Cost Exposure Hedged $1,800 3.8826 R$6,989 Jul-19 65% $1,800 3.8950 R$7,011 Aug-19 68% $1,800 3.9070 R$7,033 Sep-19 66% $1,800 3.9203 R$7,056 Oct-19 67% $1,800 3.9331 R$7,080 Nov-19 67% $1,800 3.9455 R$7,102 Dec-19 73% $1,400 3.8256 R$5,356 Jan-20 51% $1,400 3.8331 R$5,366 Feb-20 52% $1,400 3.8377 R$5,373 Mar-20 49% $1,400 3.8456 R$5,384 Apr-20 50% $1,400 3.8539 R$5,395 May-20 51% $1,400 3.8621 R$5,407 Jun-20 50% $1,400 3.8727 R$5,422 Jul-20 48% $1,400 3.8850 R$5,439 Aug-20 50% $1,400 3.8964 R$5,455 Sep-20 49% $1,400 3.9079 R$5,471 Oct-20 50% $1,400 3.9187 R$5,486 Nov-20 50% $1,400 3.9306 R$5,503 Dec-20 54% $27,600 3.8887 R$107,328 56% 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 net fair value of the open forward contracts was a negative $0.5 million as of June 30, 2019 . 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, 2019 and 2018 is summarized in the table below: (In thousands) Cash Flow Derivative Hedges Three Months Ended June 30, Aluminum Futures Contracts Foreign Currency Forwards 2019 2018 2019 2019 2018 2018 Amount of pretax gain (loss) recognized in other comprehensive income (loss) $ (1,192 ) $ 1,457 $ — $ 719 $ — (1,849 ) 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) $ (606 ) $ 712 $ 16 $ (369 ) $ 16 (378 ) Six Months Ended June 30, Aluminum Futures Contracts Foreign Currency Forwards 2019 2018 2019 2019 2018 2018 Amount of pre-tax gain (loss) recognized in other comprehensive income (loss) $ (1,438 ) $ 1,065 $ — $ (97 ) $ — (1,679 ) 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) $ (1,223 ) $ 944 $ 31 $ (560 ) $ 31 (419 ) As of June 30, 2019 , the Company expects $1.3 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, 2019 and 2018 , net gains or losses realized, from previously unrealized net gains or losses on hedges that had been discontinued, were not material.

Derivative Financial Instrume_4

Derivative Financial Instruments Foreign Currency Cash Flow Hedge Instruments (Tables)	6 Months Ended
	Jun. 30, 2019
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative, Description of Hedged Item	Terphane Ltda. has the following outstanding foreign exchange average forward rate contracts to purchase Brazilian Real and sell U.S. Dollars: USD Notional Amount (000s) Average Forward Rate Contracted on USD/BRL R$ Equivalent Amount (000s) Applicable Month Estimated % of Terphane Ltda. R$ Operating Cost Exposure Hedged $1,800 3.8826 R$6,989 Jul-19 65% $1,800 3.8950 R$7,011 Aug-19 68% $1,800 3.9070 R$7,033 Sep-19 66% $1,800 3.9203 R$7,056 Oct-19 67% $1,800 3.9331 R$7,080 Nov-19 67% $1,800 3.9455 R$7,102 Dec-19 73% $1,400 3.8256 R$5,356 Jan-20 51% $1,400 3.8331 R$5,366 Feb-20 52% $1,400 3.8377 R$5,373 Mar-20 49% $1,400 3.8456 R$5,384 Apr-20 50% $1,400 3.8539 R$5,395 May-20 51% $1,400 3.8621 R$5,407 Jun-20 50% $1,400 3.8727 R$5,422 Jul-20 48% $1,400 3.8850 R$5,439 Aug-20 50% $1,400 3.8964 R$5,455 Sep-20 49% $1,400 3.9079 R$5,471 Oct-20 50% $1,400 3.9187 R$5,486 Nov-20 50% $1,400 3.9306 R$5,503 Dec-20 54% $27,600 3.8887 R$107,328 56%

Pension And Other Post-Retire_2

Pension And Other Post-Retirement Benefits (Tables)	6 Months Ended
	Jun. 30, 2019
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 are shown below: Pension Benefits Other PostRetirement Benefits Three Months Ended June 30, Three Months Ended June 30, (In thousands) 2019 2018 2019 2018 Service cost $ — $ 5 $ 8 $ 10 Interest cost 3,068 2,882 73 69 Expected return on plan assets (3,404 ) (3,761 ) — — Amortization of prior service costs, (gains) losses and net transition asset 2,730 3,428 (57 ) (54 ) Net periodic benefit cost $ 2,394 $ 2,554 $ 24 $ 25 Pension Benefits Other Post-Retirement Benefits Six Months Ended June 30, Six Months Ended June 30, 2019 2018 2019 2018 Service cost $ — $ 10 $ 16 $ 20 Interest cost 6,135 5,764 146 138 Expected return on plan assets (6,808 ) (7,522 ) — — Amortization of prior service costs, (gains) losses and net transition asset 5,459 6,856 (115 ) (108 ) Net periodic benefit cost $ 4,786 $ 5,108 $ 47 $ 50

Other Income (Expense), Net Oth

Other Income (Expense), Net Other Income (Expense), Net Summary Table (Tables)	6 Months Ended
	Jun. 30, 2019
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) 2019 2018 2019 2018 Gain on investment in kaléo accounted for under fair value method $ 7,100 $ 5,800 $ 24,182 $ 14,000 Other (4 ) 57 24 89 Total $ 7,096 $ 5,857 $ 24,206 $ 14,089

Segment Reporting (Tables)

Segment Reporting (Tables)	6 Months Ended
	Jun. 30, 2019
Segment Reporting [Abstract]
Schedule Of Segment Reporting Information By Segment	The following table presents net sales and operating profit by segment for the three and six months ended June 30, 2019 and 2018 : Three Months Ended June 30, Six Months Ended June 30, (In thousands) 2019 2018 2019 2018 Net Sales PE Films $ 69,161 $ 82,457 $ 135,941 $ 175,707 Flexible Packaging Films 33,443 28,304 67,062 56,741 Aluminum Extrusions 136,757 144,558 275,804 272,793 Total net sales 239,361 255,319 478,807 505,241 Add back freight 8,887 8,440 17,907 17,229 Sales as shown in the Consolidated Statements of Income $ 248,248 $ 263,759 $ 496,714 $ 522,470 Operating Profit (Loss) PE Films: Ongoing operations $ 7,766 $ 8,678 $ 10,717 $ 22,712 Plant shutdowns, asset impairments, restructurings and other (1,523 ) (1,135 ) (2,901 ) (2,187 ) Flexible Packaging Films: Ongoing operations 2,517 1,294 5,377 3,008 Plant shutdowns, asset impairments, restructurings and other — — — — Aluminum Extrusions: Ongoing operations 14,518 13,156 26,603 23,355 Plant shutdowns, asset impairments, restructurings and other (17 ) (46 ) (57 ) (99 ) Total 23,261 21,947 39,739 46,789 Interest income 48 228 107 284 Interest expense 1,263 1,577 2,495 3,221 Gain (loss) on investment in kaléo accounted for under fair value method 7,100 5,800 24,182 14,000 Stock option-based compensation costs 898 305 1,313 391 Corporate expenses, net 9,331 6,824 17,492 14,740 Income (loss) before income taxes 18,917 19,269 42,728 42,721 Income taxes (benefit) 4,440 4,547 8,467 9,834 Net income (loss) $ 14,477 $ 14,722 $ 34,261 $ 32,887
Schedule Of Identifiable Assets By Segment	The following table presents identifiable assets by segment at June 30, 2019 and December 31, 2018 : (In thousands) June 30, 2019 December 31, 2018 PE Films $ 232,316 $ 231,720 Flexible Packaging Films 63,826 58,964 Aluminum Extrusions 288,715 281,372 Subtotal 584,857 572,056 General corporate 105,474 100,920 Cash, cash equivalents and restricted cash 39,769 34,397 Total $ 730,100 $ 707,373

Segment Reporting Net Sales by

Segment Reporting Net Sales by Geographic Area Table (Tables) 1	6 Months Ended
	Jun. 30, 2019
Disaggregation of Revenue [Line Items]
Disaggregation of Revenue [Table Text Block]	Net Sales by Product Group Three Months Ended June 30, Six Months Ended June 30, (In thousands) 2019 2018 2019 2018 PE Films: Personal care materials 37,956 55,985 82,812 117,629 Surface protection films 29,253 24,918 49,142 54,733 LED lighting products & other films 1,952 1,555 3,987 3,345 Subtotal 69,161 82,458 135,941 175,707 Flexible Packaging Films 33,443 28,304 67,062 56,741 Aluminum Extrusions: Nonresidential building & construction 69,019 72,442 138,657 137,629 Consumer durables 16,381 17,161 31,926 32,309 Distribution 8,739 12,031 17,312 22,961 Automotive 12,496 11,157 25,123 20,787 Residential building & construction 10,278 12,343 21,950 21,813 Machinery & equipment 9,471 9,867 19,394 19,144 Electrical 10,373 9,556 21,442 18,150 Subtotal 136,757 144,557 275,804 272,793 Total 239,361 255,319 478,807 505,241 The following tables disaggregate the Company’s revenue by geographic area and product group for the three and six months ended June 30, 2019 and 2018 : Net Sales by Geographic Area (a) Three Months Ended June 30, Six Months Ended June 30, (In thousands) 2019 2018 2019 2018 United States $ 162,788 $ 171,185 $ 335,042 $ 330,747 Exports from the United States to: Asia 24,513 18,884 38,006 42,476 Canada 5,872 14,239 9,477 27,537 Europe 1,517 1,697 2,877 3,519 Latin America 2,670 3,654 5,537 6,706 Operations outside the United States: Brazil 27,582 23,659 55,721 46,811 The Netherlands 8,450 11,394 18,037 23,322 Hungary 5,162 8,519 11,996 17,337 China — 1,692 230 3,966 India 807 396 1,884 2,820 Total $ 239,361 $ 255,319 $ 478,807 $ 505,241

Segment Reporting Net Sales b_2

Segment Reporting Net Sales by Product Group Table (Tables)	6 Months Ended
	Jun. 30, 2019
Disaggregation of Revenue [Line Items]
Disaggregation of Revenue [Table Text Block]	Net Sales by Product Group Three Months Ended June 30, Six Months Ended June 30, (In thousands) 2019 2018 2019 2018 PE Films: Personal care materials 37,956 55,985 82,812 117,629 Surface protection films 29,253 24,918 49,142 54,733 LED lighting products & other films 1,952 1,555 3,987 3,345 Subtotal 69,161 82,458 135,941 175,707 Flexible Packaging Films 33,443 28,304 67,062 56,741 Aluminum Extrusions: Nonresidential building & construction 69,019 72,442 138,657 137,629 Consumer durables 16,381 17,161 31,926 32,309 Distribution 8,739 12,031 17,312 22,961 Automotive 12,496 11,157 25,123 20,787 Residential building & construction 10,278 12,343 21,950 21,813 Machinery & equipment 9,471 9,867 19,394 19,144 Electrical 10,373 9,556 21,442 18,150 Subtotal 136,757 144,557 275,804 272,793 Total 239,361 255,319 478,807 505,241 The following tables disaggregate the Company’s revenue by geographic area and product group for the three and six months ended June 30, 2019 and 2018 : Net Sales by Geographic Area (a) Three Months Ended June 30, Six Months Ended June 30, (In thousands) 2019 2018 2019 2018 United States $ 162,788 $ 171,185 $ 335,042 $ 330,747 Exports from the United States to: Asia 24,513 18,884 38,006 42,476 Canada 5,872 14,239 9,477 27,537 Europe 1,517 1,697 2,877 3,519 Latin America 2,670 3,654 5,537 6,706 Operations outside the United States: Brazil 27,582 23,659 55,721 46,811 The Netherlands 8,450 11,394 18,037 23,322 Hungary 5,162 8,519 11,996 17,337 China — 1,692 230 3,966 India 807 396 1,884 2,820 Total $ 239,361 $ 255,319 $ 478,807 $ 505,241

Income Taxes (Tables)

Income Taxes (Tables)	6 Months Ended
	Jun. 30, 2019
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, 2019 and 2018 are as follows: (In thousands, except percentages) 2019 2018 Six Months Ended June 30, Amount % Amount % Income tax expense at federal statutory rate $ 8,972 21.0 $ 8,971 21.0 U.S. Tax on Foreign Branch Income 1,808 5.0 736 1.7 Foreign rate differences 1,191 3.3 669 1.6 State taxes, net of federal income tax benefit 468 1.1 537 1.2 Non-deductible expenses 217 0.6 123 0.3 Changes in estimates related to prior year tax provision 152 0.4 (34 ) (0.1 ) Valuation allowance for capital loss carry-forwards — — 91 0.2 Stock-based compensation (141 ) (0.4 ) 176 0.4 Tax contingency accruals and tax settlements (154 ) (0.4 ) 100 0.2 Research and development tax credit (255 ) (0.7 ) (188 ) (0.4 ) Foreign Derived Intangible Income (FDII) (445 ) (1.2 ) (309 ) (0.7 ) Tax impact of dividend received (919 ) (2.2 ) — — Foreign tax incentives (1,074 ) (3.0 ) (655 ) (1.5 ) Valuation allowance due to foreign losses and impairments (1,353 ) (3.7 ) (383 ) (0.9 ) Effective income tax rate $ 8,467 19.8 $ 9,834 23.0

Debt Pricing Under Credit Revol

Debt Pricing Under Credit Revolving Agreement Table (Tables)	6 Months Ended
	Jun. 30, 2019
Debt Instrument [Line Items]
Schedule of Debt [Table Text Block]	Borrowings under the Credit Agreement bear an interest rate of LIBOR plus a credit spread and commitment fees charged on the unused amount under the Credit Agreement at various indebtedness-to-adjusted EBITDA levels as follows: Pricing Under Credit Revolving Agreement (Basis Points) Indebtedness-to-Adjusted EBITDA Ratio Credit Spread Over LIBOR Commitment Fee > 3.5x but <= 4.0x 200.0 40 > 3.0x but <= 3.5x 187.5 35 > 2.0x but <= 3.0x 175.0 30 > 1.0x but <= 2.0x 162.5 25 <= 1.0x 150.0 20

Revenue Recognition (Details)

Revenue Recognition (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Revenue Recognition and Deferred Revenue [Abstract]
Accounts Receivable, Gross, Current	$ 115,522	$ 122,182
Other Receivables	4,054	5,482
Accounts Receivable, Gross	119,576	127,664
Allowance for Doubtful Accounts, Premiums and Other Receivables	3,206	2,937
Accounts and other receivables, net of allowance for doubtful accounts and sales returns of $3,194 in 2019 and $2,937 in 2018	$ 116,370	$ 124,727

Plants Shutdowns, Asset Impai_3

Plants Shutdowns, Asset Impairments, Restructurings And Other (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended			6 Months Ended			10 Months Ended	13 Months Ended	18 Months Ended
	Sep. 30, 2019	Jun. 30, 2019	Jun. 30, 2018	Dec. 31, 2019	Jun. 30, 2019	Jun. 30, 2018	Mar. 31, 2019	Jun. 30, 2019	Dec. 31, 2020	Dec. 31, 2018
Restructuring Cost and Reserve [Line Items]
Asset impairments and costs associated with exit and disposal activities, net of adjustments		$ 1,075	$ 468		$ 2,131	$ 590
(Gain)/loss on asset impairments and divestitures					522	0
Other Non-Operating and Non-Recurring Charges [Abstract]
Unrealized gain (loss) on investment under fair value method					(6,600)	(14,000)
Gain (Loss) on Disposition of Assets					(11)	(109)
Payments for Restructuring					1,200
Restructuring Reserve		1,012			1,012			$ 1,012		$ 776
kaleo
Other Non-Operating and Non-Recurring Charges [Abstract]
Unrealized gain (loss) on investment under fair value method		(7,100)	(5,800)		(24,182)	(14,000)
Unrealized Gain Loss On Investments Net Of Tax		5,600			19,900
Unrealized gain (loss) on investment under fair value method, after taxes			(4,523)			10,900
Other Interest and Dividend Income					17,582
PE Films
Restructuring Cost and Reserve [Line Items]
Production LIne Start-up and Ramp-up Costs		200	600		400	1,500
Pretax charges for severance and other employee-related costs					500
Other Non-Operating and Non-Recurring Charges [Abstract]
Plant shutdowns, asset impairments, restructurings and other		(1,523)	(1,135)		(2,901)	(2,187)
Flexible Packaging Films [Member] [Domain]
Other Non-Operating and Non-Recurring Charges [Abstract]
Plant shutdowns, asset impairments, restructurings and other		0	0		0	0
Aluminum Extrusions
Other Non-Operating and Non-Recurring Charges [Abstract]
Plant shutdowns, asset impairments, restructurings and other		(17)	(46)		(57)	(99)
Corporate Segment [Member]
Restructuring Cost and Reserve [Line Items]
Professional Fees		2,000			2,900	300
Severance (a)
Other Non-Operating and Non-Recurring Charges [Abstract]
Payments for Restructuring					677
Restructuring Reserve		907			907			907		$ 616
Personal Care Materials [Member] | Other Restructuring [Member]
Restructuring Cost and Reserve [Line Items]
Plant shutdown related expenditures		1,000			1,000
Film Products Manufacturing Facility In Shanghai, China [Member]
Restructuring Cost and Reserve [Line Items]
Property, Plant and Equipment, Disposals		100			400
Film Products Manufacturing Facility In Shanghai, China [Member] | Other Restructuring [Member]
Restructuring Cost and Reserve [Line Items]
Other Restructuring Costs after Taxes		300			500		$ 3,800
Plant shutdown related expenditures			700			700
Pretax charges for severance and other employee-related costs			400			400
Accelerated Depreciation Expense			100			100
Other Restructuring Costs			$ 200			$ 200
Film Products Manufacturing Facility In Shanghai, China [Member] | Other Restructuring [Member] | PE Films
Other Non-Operating and Non-Recurring Charges [Abstract]
Payments for Restructuring		300			500			$ 3,000
FilmProductsManufacturingFacilityInLakeZurichIllinois [Member] | Other Restructuring [Member]
Restructuring Cost and Reserve [Line Items]
Property, Plant and Equipment, Disposals		200			200
Pretax charges for severance and other employee-related costs		300			300
Accelerated Depreciation Expense		300			300
FilmProductsManufacturingFacilityInLakeZurichIllinois [Member] | Other Restructuring [Member] | PE Films
Restructuring Cost and Reserve [Line Items]
Losses Associated With Plant Shutdowns Asset Impairments Restructurings Unusual Items Gains Losses From Sale Of Assets Other Items									$ 5,000
PE Films Personal Care European Operations [Member] | Other Restructuring [Member]
Restructuring Cost and Reserve [Line Items]
Property, Plant and Equipment, Disposals		300			300
Pretax charges for severance and other employee-related costs		$ 400			$ 400
Personal Care Materials [Member] | Film Products Manufacturing Facility In Shanghai, China [Member] | Other Restructuring [Member] | PE Films
Restructuring Cost and Reserve [Line Items]
Losses Associated With Plant Shutdowns Asset Impairments Restructurings Unusual Items Gains Losses From Sale Of Assets Other Items	$ 6,500
Other Non-Operating and Non-Recurring Charges [Abstract]
Restructuring, Settlement and Impairment Provisions				$ 500
Personal Care Materials [Member] | FilmProductsManufacturingFacilityInLakeZurichIllinois [Member] | Other Restructuring [Member] | PE Films
Restructuring Cost and Reserve [Line Items]
Accelerated Depreciation Expense									1,600
Other Plant Consolidation Expenses - Cost of Goods Sold									700
Other Non-Operating and Non-Recurring Charges [Abstract]
Restructuring, Settlement and Impairment Provisions									7,600
Personal Care Materials [Member] | PE Films Personal Care European Operations [Member] | Other Restructuring [Member] | PE Films
Other Non-Operating and Non-Recurring Charges [Abstract]
Restructuring, Settlement and Impairment Provisions									1,700
Personal Care Materials [Member] | FilmProductsManufacturingFacilityInLakeZurichIllinois [Member] | Other Restructuring [Member] | PE Films
Restructuring Cost and Reserve [Line Items]
Pretax charges for severance and other employee-related costs									1,800
Other Restructuring Costs									$ 5,100

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		13 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019
Restructuring Reserve [Roll Forward]
January 1, 2019			$ 776
Charges			2,131
Cash payments			(1,200)
Charges against assets			(695)
June 30, 2019	$ 1,012		1,012		$ 1,012
Restructuring Reserve, Accrual Adjustment			0
Severance (a)
Restructuring Reserve [Roll Forward]
January 1, 2019			616
Charges			968
Cash payments			(677)
June 30, 2019	907		907		907
Long Lived Asset Impairment [Member]
Restructuring Reserve [Roll Forward]
January 1, 2019			0
Charges			695
Cash payments			0
Charges against assets			(695)
June 30, 2019	0		0		0
Restructuring Reserve, Accrual Adjustment			0
Other
Restructuring Reserve [Roll Forward]
January 1, 2019			160
Charges			468
Cash payments			(523)
Charges against assets			0
June 30, 2019	105		105		105
Film Products Manufacturing Facility In Shanghai, China [Member] | Other Restructuring [Member]
Restructuring Cost and Reserve [Line Items]
Severance Costs		$ 400		$ 400
PE Films
Restructuring Cost and Reserve [Line Items]
Severance Costs			500
PE Films | Film Products Manufacturing Facility In Shanghai, China [Member] | Other Restructuring [Member]
Restructuring Reserve [Roll Forward]
Cash payments	$ (300)		$ (500)		$ (3,000)

Inventories (Schedule Of Compon

Inventories (Schedule Of Components Of Inventories) (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Inventory, Net [Abstract]
Finished goods	$ 28,755	$ 24,938
Work-in-process	14,957	15,648
Raw materials	29,745	33,741
Stores, supplies and other	19,902	19,483
Total	$ 93,359	$ 93,810

Earnings Per Share (Narrative)

Earnings Per Share (Narrative) (Details) - shares	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Earnings Per Share [Abstract]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	1,474,762	215,903	1,225,333	264,868

Leasing (Details)

Leasing (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended	12 Months Ended
	Jun. 30, 2019	Jun. 30, 2019	Dec. 31, 2018
ASC 840 2018 Minimum Lease Payments Table [Abstract]
Operating Leases, Rent Expense	$ 1,500	$ 2,900
Operating Leases, Rent Expense, Net			$ 5,200
Operating Leases, Future Minimum Payments Due, Next Twelve Months	1,747	1,747	4,445
Operating Leases, Future Minimum Payments, Due in Two Years	3,507	3,507	4,007
Operating Leases, Future Minimum Payments, Due in Three Years	3,397	3,397	3,591
Operating Leases, Future Minimum Payments, Due in Four Years	2,484	2,484	2,391
Operating Leases, Future Minimum Payments, Due in Five Years	2,378	2,378	1,245
Operating Leases, Future Minimum Payments, Due Thereafter	12,288	12,288	2,630
Operating Leases, Future Minimum Payments Due	$ 25,801	$ 25,801	$ 18,309

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, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Earnings Per Share [Abstract]
Weighted average shares outstanding used to compute basic earnings per share	33,270	33,074	33,197	33,028
Incremental dilutive shares attributable to stock options and restricted stock	8	34	6	20
Shares used to compute diluted earnings per share	33,278	33,108	33,203	33,048

Maturity of Lease Liability Tab

Maturity of Lease Liability Table (Details) - USD ($)	3 Months Ended	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2019	Jan. 01, 2019	Dec. 31, 2018
Leases [Abstract]
Operating Leases, Future Minimum Payments Due, Next Twelve Months	$ 1,747,000	$ 1,747,000		$ 4,445,000
Operating Lease, Right-of-Use Asset	19,610,000	19,610,000	$ 21,000,000	0
Operating Lease, Liability, Noncurrent	18,526,000	18,526,000	$ 22,000,000
Operating Leases, Rent Expense	1,500,000	2,900,000
Operating Leases, Future Minimum Payments, Due in Two Years	3,507,000	3,507,000		4,007,000
Operating Leases, Future Minimum Payments, Due in Three Years	3,397,000	3,397,000		3,591,000
Operating Leases, Future Minimum Payments, Due in Four Years	2,484,000	2,484,000		2,391,000
Operating Leases, Future Minimum Payments, Due in Five Years	2,378,000	2,378,000		1,245,000
Operating Leases, Future Minimum Payments, Due Thereafter	12,288,000	12,288,000		2,630,000
Operating Leases, Future Minimum Payments Due	25,801,000	25,801,000		18,309,000
Operating Lease, Liability, Current	2,650,000	2,650,000		$ 0
Lessee, Operating Lease, Liability, Undiscounted Excess Amount	4,625,000	4,625,000
Operating Lease, Liability	$ 21,176,000	$ 21,176,000
Operating Lease, Weighted Average Remaining Lease Term	9 years	9 years
Operating Lease, Weighted Average Discount Rate, Percent	4.30%	4.30%

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, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Accumulated Other Comprehensive Income (Loss) [Line Items]
Selling, general and administrative	$ 23,864	$ 20,946	$ 45,875	$ 42,775
Beginning of Period			(179,987)	(176,669)
Other comprehensive income (loss) before reclassifications			(1,501)	(9,734)
Amounts reclassified from accumulated other comprehensive income (loss)			5,644	4,862
Net other comprehensive income (loss) - current period	3,207	(9,105)	4,143	(4,872)
End of Period	(175,844)	(181,541)	(175,844)	(181,541)
Income before income taxes	18,917	19,269	42,728	42,721
Income Tax Expense (Benefit)	4,440	4,547	8,467	9,834
Net income	14,477	14,722	34,261	32,887
Foreign Currency Translation
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning of Period			(96,940)	(86,178)
Other comprehensive income (loss) before reclassifications			(283)	(8,905)
Amounts reclassified from accumulated other comprehensive income (loss)			0	0
Net other comprehensive income (loss) - current period			(283)	(8,905)
End of Period	(97,223)	(95,083)	(97,223)	(95,083)
Gain (Loss) on Derivative Financial Instruments
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning of Period			(1,601)	459
Other comprehensive income (loss) before reclassifications			(1,218)	(829)
Amounts reclassified from accumulated other comprehensive income (loss)			1,486	(361)
Net other comprehensive income (loss) - current period			268	(1,190)
End of Period	(1,333)	(731)	(1,333)	(731)
Pension & Other Post-retirement Benefit Adjustment
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning of Period			(81,446)	(90,950)
Other comprehensive income (loss) before reclassifications			0	0
Amounts reclassified from accumulated other comprehensive income (loss)			4,158	5,223
Net other comprehensive income (loss) - current period			4,158	5,223
End of Period	(77,288)	(85,727)	(77,288)	(85,727)
Reclassification out of Accumulated Other Comprehensive Income [Member] | Gain (Loss) on Derivative Financial Instruments
Accumulated Other Comprehensive Income (Loss) [Line Items]
Income before income taxes	(959)	350	(1,752)	556
Income Tax Expense (Benefit)	(131)	142	(266)	195
Net income	(828)	208	(1,486)	361
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)	(593)	(761)	(1,185)	(1,523)
Net income	(2,079)	(2,611)	(4,158)	(5,223)
Amortization Of Prior Service Costs And Net Gains Loss	(2,672)	(3,372)	(5,343)	(6,746)
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	(606)	712	1,223	(944)
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, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018	Dec. 31, 2018	Dec. 31, 2017
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Accumulated Other Comprehensive Income (Loss), Net of Tax	$ (175,844)	$ (181,541)	$ (175,844)	$ (181,541)	$ (179,987)	$ (176,669)
Selling, general and administrative	23,864	20,946	45,875	42,775
Income before income taxes	(18,917)	(19,269)	(42,728)	(42,721)
Income taxes from continuing operations	(4,440)	(4,547)	(8,467)	(9,834)
Net income	14,477	14,722	34,261	32,887
Foreign Currency Translation
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Accumulated Other Comprehensive Income (Loss), Net of Tax	(97,223)	(95,083)	(97,223)	(95,083)	(96,940)	(86,178)
Gain (Loss) on Derivative Financial Instruments
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Accumulated Other Comprehensive Income (Loss), Net of Tax	(1,333)	(731)	(1,333)	(731)	(1,601)	459
Pension & Other Post-retirement Benefit Adjustment
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Accumulated Other Comprehensive Income (Loss), Net of Tax	(77,288)	(85,727)	(77,288)	(85,727)	$ (81,446)	$ (90,950)
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	959	(350)	1,752	(556)
Income taxes from continuing operations	131	(142)	266	(195)
Net income	(828)	208	(1,486)	361
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	(606)	712	1,223	(944)
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	(2,672)	(3,372)	(5,343)	(6,746)
Income taxes from continuing operations	593	761	1,185	1,523
Net income	(2,079)	(2,611)	(4,158)	(5,223)
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		(378)		(419)
Selling, general and administrative	(369)		(560)
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, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018	Dec. 31, 2018	Dec. 31, 2008
Unrealized gain (loss) on investment under fair value method			$ 6,600,000	$ 14,000,000
Gain (Loss) on Disposition of Assets			$ (11,000)	(109,000)
kaleo
Total cash invested in private company						$ 7,500,000
Ownership interest percentage			20.00%
Carrying value	$ 91,200,000		$ 91,200,000		$ 84,600,000
Other Interest and Dividend Income			17,582,000
Unrealized gain (loss) on investment under fair value method	7,100,000	$ 5,800,000	24,182,000	14,000,000
Unrealized Gain Loss On Investments Net Of Tax	$ 5,600,000		$ 19,900,000
Unrealized Gain Loss On Investment Under Fair Value Method After Taxes		$ 4,523,000		$ (10,900,000)
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
EV-to-Adjusted EBITDA Multiple Method			5.1 x
Weighting of EBITDA Multiple Method versus DCF Method	50.00%		50.00%
Fair Value Sensitivity Analysis: Weighting to DCF Method at Varied EV-to-Adjusted EBITDA Multiple	$ 75,400		$ 75,400
Servicing Assets and Servicing Liabilities at Fair Value, Assumptions Used to Estimate Fair Value, Discount Rate			15.00%
DCF Method for Fair Value Estimate [Member] | 8.6x [Domain] | kaleo
EV-to-Adjusted EBITDA Multiple Method			6.1 x
Fair Value Sensitivity Analysis: Weighting to DCF Method at Varied EV-to-Adjusted EBITDA Multiple	83,300		$ 83,300
DCF Method for Fair Value Estimate [Member] | 9.6x [Domain] | kaleo
EV-to-Adjusted EBITDA Multiple Method			7.1 x
Fair Value Sensitivity Analysis: Weighting to DCF Method at Varied EV-to-Adjusted EBITDA Multiple	91,200		$ 91,200
DCF Method for Fair Value Estimate [Member] | 10.6x [Domain] | kaleo
EV-to-Adjusted EBITDA Multiple Method			8.1 x
Fair Value Sensitivity Analysis: Weighting to DCF Method at Varied EV-to-Adjusted EBITDA Multiple	99,100		$ 99,100
DCF Method for Fair Value Estimate [Member] | 11.6x [Domain] | kaleo
EV-to-Adjusted EBITDA Multiple Method			9.1 x
Fair Value Sensitivity Analysis: Weighting to DCF Method at Varied EV-to-Adjusted EBITDA Multiple	$ 107,000		$ 107,000
EBITDA Multiple Method for Fair Value Estimate [Member] | kaleo
Weighting of EBITDA Multiple Method versus DCF Method	80.00%		80.00%
40% [Domain] | DCF Method for Fair Value Estimate [Member] | kaleo
Weighting of EBITDA Multiple Method versus DCF Method	40.00%		40.00%
Fair Value Sensitivity Analysis: Weighting to DCF Method at Varied EV-to-Adjusted EBITDA Multiple	$ 72,300		$ 72,300
40% [Domain] | DCF Method for Fair Value Estimate [Member] | 8.6x [Domain] | kaleo
Fair Value Sensitivity Analysis: Weighting to DCF Method at Varied EV-to-Adjusted EBITDA Multiple	81,700		81,700
40% [Domain] | DCF Method for Fair Value Estimate [Member] | 9.6x [Domain] | kaleo
Fair Value Sensitivity Analysis: Weighting to DCF Method at Varied EV-to-Adjusted EBITDA Multiple	91,200		91,200
40% [Domain] | DCF Method for Fair Value Estimate [Member] | 10.6x [Domain] | kaleo
Fair Value Sensitivity Analysis: Weighting to DCF Method at Varied EV-to-Adjusted EBITDA Multiple	100,700		100,700
40% [Domain] | DCF Method for Fair Value Estimate [Member] | 11.6x [Domain] | kaleo
Fair Value Sensitivity Analysis: Weighting to DCF Method at Varied EV-to-Adjusted EBITDA Multiple	$ 110,200		$ 110,200
30% [Domain] | DCF Method for Fair Value Estimate [Member] | kaleo
Weighting of EBITDA Multiple Method versus DCF Method	30.00%		30.00%
Fair Value Sensitivity Analysis: Weighting to DCF Method at Varied EV-to-Adjusted EBITDA Multiple	$ 69,100		$ 69,100
30% [Domain] | DCF Method for Fair Value Estimate [Member] | 8.6x [Domain] | kaleo
Fair Value Sensitivity Analysis: Weighting to DCF Method at Varied EV-to-Adjusted EBITDA Multiple	80,100		80,100
30% [Domain] | DCF Method for Fair Value Estimate [Member] | 9.6x [Domain] | kaleo
Fair Value Sensitivity Analysis: Weighting to DCF Method at Varied EV-to-Adjusted EBITDA Multiple	91,200		91,200
30% [Domain] | DCF Method for Fair Value Estimate [Member] | 10.6x [Domain] | kaleo
Fair Value Sensitivity Analysis: Weighting to DCF Method at Varied EV-to-Adjusted EBITDA Multiple	102,300		102,300
30% [Domain] | DCF Method for Fair Value Estimate [Member] | 11.6x [Domain] | kaleo
Fair Value Sensitivity Analysis: Weighting to DCF Method at Varied EV-to-Adjusted EBITDA Multiple	$ 113,300		$ 113,300
20% [Domain] | DCF Method for Fair Value Estimate [Member] | kaleo
Weighting of EBITDA Multiple Method versus DCF Method	20.00%		20.00%
Fair Value Sensitivity Analysis: Weighting to DCF Method at Varied EV-to-Adjusted EBITDA Multiple	$ 65,900		$ 65,900
20% [Domain] | DCF Method for Fair Value Estimate [Member] | 8.6x [Domain] | kaleo
Fair Value Sensitivity Analysis: Weighting to DCF Method at Varied EV-to-Adjusted EBITDA Multiple	78,600		78,600
20% [Domain] | DCF Method for Fair Value Estimate [Member] | 9.6x [Domain] | kaleo
Fair Value Sensitivity Analysis: Weighting to DCF Method at Varied EV-to-Adjusted EBITDA Multiple	91,200		91,200
20% [Domain] | DCF Method for Fair Value Estimate [Member] | 10.6x [Domain] | kaleo
Fair Value Sensitivity Analysis: Weighting to DCF Method at Varied EV-to-Adjusted EBITDA Multiple	103,800		103,800
20% [Domain] | DCF Method for Fair Value Estimate [Member] | 11.6x [Domain] | kaleo
Fair Value Sensitivity Analysis: Weighting to DCF Method at Varied EV-to-Adjusted EBITDA Multiple	$ 116,500		$ 116,500
10% [Domain] | DCF Method for Fair Value Estimate [Member] | kaleo
Weighting of EBITDA Multiple Method versus DCF Method	10.00%		10.00%
Fair Value Sensitivity Analysis: Weighting to DCF Method at Varied EV-to-Adjusted EBITDA Multiple	$ 62,700		$ 62,700
10% [Domain] | DCF Method for Fair Value Estimate [Member] | 8.6x [Domain] | kaleo
Fair Value Sensitivity Analysis: Weighting to DCF Method at Varied EV-to-Adjusted EBITDA Multiple	77,000		77,000
10% [Domain] | DCF Method for Fair Value Estimate [Member] | 9.6x [Domain] | kaleo
Fair Value Sensitivity Analysis: Weighting to DCF Method at Varied EV-to-Adjusted EBITDA Multiple	91,200		91,200
10% [Domain] | DCF Method for Fair Value Estimate [Member] | 10.6x [Domain] | kaleo
Fair Value Sensitivity Analysis: Weighting to DCF Method at Varied EV-to-Adjusted EBITDA Multiple	105,400		105,400
10% [Domain] | DCF Method for Fair Value Estimate [Member] | 11.6x [Domain] | kaleo
Fair Value Sensitivity Analysis: Weighting to DCF Method at Varied EV-to-Adjusted EBITDA Multiple	$ 119,600		$ 119,600
0% [Domain] | DCF Method for Fair Value Estimate [Member] | kaleo
Weighting of EBITDA Multiple Method versus DCF Method	0.00%		0.00%
Fair Value Sensitivity Analysis: Weighting to DCF Method at Varied EV-to-Adjusted EBITDA Multiple	$ 59,600		$ 59,600
0% [Domain] | DCF Method for Fair Value Estimate [Member] | 8.6x [Domain] | kaleo
Fair Value Sensitivity Analysis: Weighting to DCF Method at Varied EV-to-Adjusted EBITDA Multiple	75,400		75,400
0% [Domain] | DCF Method for Fair Value Estimate [Member] | 9.6x [Domain] | kaleo
Fair Value Sensitivity Analysis: Weighting to DCF Method at Varied EV-to-Adjusted EBITDA Multiple	91,200		91,200
0% [Domain] | DCF Method for Fair Value Estimate [Member] | 10.6x [Domain] | kaleo
Fair Value Sensitivity Analysis: Weighting to DCF Method at Varied EV-to-Adjusted EBITDA Multiple	107,000		107,000
0% [Domain] | DCF Method for Fair Value Estimate [Member] | 11.6x [Domain] | kaleo
Fair Value Sensitivity Analysis: Weighting to DCF Method at Varied EV-to-Adjusted EBITDA Multiple	$ 122,800		$ 122,800

Derivative Financial Instrume_5

Derivative Financial Instruments (Narrative) (Details) R$ in Thousands, $ in Thousands, lb in Millions	6 Months Ended		12 Months Ended
	Jun. 30, 2019BRL (R$)lb	Jun. 30, 2019USD ($)lb	Dec. 31, 2018USD ($)lb	Jun. 30, 2019USD ($)
Derivative [Line Items]
Amounts of unrealized after tax gains (losses) to be Reclassified within Twelve Months		$ 1,300
Aluminum Futures Contracts
Derivative [Line Items]
Notional Amount			$ 25,400	$ 19,800
Weight of aluminum that hedged future purchase of aluminum to meet fixed - price forward sales contract obligations, lbs | lb	18	18	22.5
Net asset (liability), Fair Value			$ (1,630)	(1,845)
Terphane Ltda [Member]
Derivative [Line Items]
Notional Amount	R$ 107328			27,600
Accrued Expenses [Member] | Derivatives Designated As Hedging Instruments [Member] | Aluminum Futures Contracts
Derivative [Line Items]
Derivative Asset, Fair Value, Gross Asset			20	0
Derivative Liability, Fair Value, Gross Liability			$ 1,650	1,845
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				$ 500
Oct-2018 [Member] | Terphane Ltda [Member]
Derivative [Line Items]
Annual Net Costs Mismatch Translation Exposure - Real vs US Dollar | R$	R$ 125000

Derivative Financial Instrume_6

Derivative Financial Instruments (Summary Of Location And Fair Value Of Derivative Financial Instruments) (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Flexible Packaging Films [Member] [Domain] | Accrued Expenses [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value, Gross Asset	$ (453)	$ (1,053)
Aluminum Futures Contracts
Derivatives, Fair Value [Line Items]
Net asset (liability), Fair Value	(1,845)	(1,630)
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	198	37
Liability derivatives: Fair Value	651	1,090
Derivatives Designated As Hedging Instruments [Member] | Aluminum Futures Contracts | Accrued Expenses [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value, Gross Asset	0	20
Liability derivatives: Fair Value	$ (1,845)	$ (1,650)

Derivative Financial Instrume_7

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, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
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)	(369)	(378)	(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)	(1,192)	1,457	(1,438)	1,065
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)	(606)	712	(1,223)	944
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)	$ 719	$ (1,849)	$ (97)

Derivative Financial Instrume_8

Derivative Financial Instruments Terphane Future Cash Flow Hedges (Details) - Terphane Ltda [Member] R$ in Thousands, $ in Thousands	Jun. 30, 2019BRL (R$)	Jun. 30, 2019USD ($)
Derivative [Line Items]
Derivative, Notional Amount	R$ 107328	$ 27,600
Percentage of Coverage Using Cash Flow Hedges	0.00%	0.00%
Foreign Currency Exchange Rate, Translation	3.9	3.9
Jul-19 [Member]
Derivative [Line Items]
Derivative, Notional Amount	R$ 6989	$ 1,800
Percentage of Coverage Using Cash Flow Hedges	0.00%	0.00%
Foreign Currency Exchange Rate, Translation	3,882.6	3,882.6
Aug-19 [Member]
Derivative [Line Items]
Derivative, Notional Amount	R$ 7011	$ 1,800
Percentage of Coverage Using Cash Flow Hedges	0.00%	0.00%
Foreign Currency Exchange Rate, Translation	3,895	3,895
Sep-19 [Member]
Derivative [Line Items]
Derivative, Notional Amount	R$ 7033	$ 1,800
Percentage of Coverage Using Cash Flow Hedges	0.00%	0.00%
Foreign Currency Exchange Rate, Translation	3,907	3,907
Oct-19 [Member]
Derivative [Line Items]
Derivative, Notional Amount	R$ 7056	$ 1,800
Percentage of Coverage Using Cash Flow Hedges	0.00%	0.00%
Foreign Currency Exchange Rate, Translation	3,920.3	3,920.3
Nov-19 [Member]
Derivative [Line Items]
Derivative, Notional Amount	R$ 7080	$ 1,800
Percentage of Coverage Using Cash Flow Hedges	0.00%	0.00%
Foreign Currency Exchange Rate, Translation	3,933.1	3,933.1
Dec-19 [Member]
Derivative [Line Items]
Derivative, Notional Amount	R$ 7102	$ 1,800
Percentage of Coverage Using Cash Flow Hedges	0.00%	0.00%
Foreign Currency Exchange Rate, Translation	3,945.5	3,945.5
Jan-20 [Member] [Member]
Derivative [Line Items]
Derivative, Notional Amount	R$ 5356	$ 1,400
Percentage of Coverage Using Cash Flow Hedges	0.00%	0.00%
Foreign Currency Exchange Rate, Translation	3,825.6	3,825.6
Feb-20 [Member] [Member]
Derivative [Line Items]
Derivative, Notional Amount	R$ 5366	$ 1,400
Percentage of Coverage Using Cash Flow Hedges	0.00%	0.00%
Foreign Currency Exchange Rate, Translation	3,833.1	3,833.1
Mar-20 [Member] [Member]
Derivative [Line Items]
Derivative, Notional Amount	R$ 5373	$ 1,400
Percentage of Coverage Using Cash Flow Hedges	0.00%	0.00%
Foreign Currency Exchange Rate, Translation	3,837.7	3,837.7
Apr-20 [Member] [Member]
Derivative [Line Items]
Derivative, Notional Amount	R$ 5384	$ 1,400
Percentage of Coverage Using Cash Flow Hedges	0.00%	0.00%
Foreign Currency Exchange Rate, Translation	3,845.6	3,845.6
May-20 [Member] [Member]
Derivative [Line Items]
Derivative, Notional Amount	R$ 5395	$ 1,400
Percentage of Coverage Using Cash Flow Hedges	0.00%	0.00%
Foreign Currency Exchange Rate, Translation	3,853.9	3,853.9
Jun-20 [Member] [Member]
Derivative [Line Items]
Derivative, Notional Amount	R$ 5407	$ 1,400
Percentage of Coverage Using Cash Flow Hedges	0.00%	0.00%
Foreign Currency Exchange Rate, Translation	3,862.1	3,862.1
Jul-20 [Member] [Member]
Derivative [Line Items]
Derivative, Notional Amount	R$ 5422	$ 1,400
Percentage of Coverage Using Cash Flow Hedges	0.00%	0.00%
Foreign Currency Exchange Rate, Translation	3,872.7	3,872.7
Aug-20 [Member] [Member]
Derivative [Line Items]
Derivative, Notional Amount	R$ 5439	$ 1,400
Percentage of Coverage Using Cash Flow Hedges	0.00%	0.00%
Foreign Currency Exchange Rate, Translation	3,885	3,885
Sep-20 [Member] [Member]
Derivative [Line Items]
Derivative, Notional Amount	R$ 5455	$ 1,400
Percentage of Coverage Using Cash Flow Hedges	0.00%	0.00%
Foreign Currency Exchange Rate, Translation	3,896.4	3,896.4
Oct-20 [Member] [Member]
Derivative [Line Items]
Derivative, Notional Amount	R$ 5471	$ 1,400
Percentage of Coverage Using Cash Flow Hedges	0.00%	0.00%
Foreign Currency Exchange Rate, Translation	3,907.9	3,907.9
Nov-20 [Member] [Member]
Derivative [Line Items]
Derivative, Notional Amount	R$ 5486	$ 1,400
Percentage of Coverage Using Cash Flow Hedges	0.00%	0.00%
Foreign Currency Exchange Rate, Translation	3,918.7	3,918.7
Dec-20 [Member] [Member]
Derivative [Line Items]
Derivative, Notional Amount	R$ 5503	$ 1,400
Percentage of Coverage Using Cash Flow Hedges	0.00%	0.00%
Foreign Currency Exchange Rate, Translation	3,930.6	3,930.6

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, 2019	Dec. 31, 2018
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Amounts for Asset (Liability) Recognized in Statement of Financial Position	$ (84.6)	$ (88.8)
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	8.1
Contribution to pension plans for continuing operations	3.6
Accrued Expenses [Member]
Defined Benefit Plan Disclosure [Line Items]
Liability, Defined Benefit Plan, Current	$ 0.6	$ 1

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, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 0	$ 5	$ 0	$ 10
Interest cost	3,068	2,882	6,135	5,764
Expected return on plan assets	(3,404)	(3,761)	(6,808)	(7,522)
Amortization of prior service costs, (gains) losses and net transition asset	2,730	3,428	5,459	6,856
Net periodic benefit cost	2,394	2,554	4,786	5,108
Other Post-Retirement Benefits
Defined Benefit Plan Disclosure [Line Items]
Service cost	8	10	16	20
Interest cost	73	69	146	138
Expected return on plan assets		0
Amortization of prior service costs, (gains) losses and net transition asset	(57)	(54)	(115)	(108)
Net periodic benefit cost	$ 24	$ 25	$ 47	$ 50

Other Income (Expense), Net (De

Other Income (Expense), Net (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Other Income and Expenses [Abstract]
Other income (expense), net	$ 7,096	$ 5,857	$ 24,206	$ 14,089
Other Nonoperating Income (Expense), Net - Other	$ (4)	$ 57	$ 24	$ 89

Other Income (Expense), Net O_2

Other Income (Expense), Net Other Income (Expense), Net (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Other Nonoperating Income (Expense), Net - Total	$ 7,096	$ 5,857	$ 24,206	$ 14,089
Other Nonoperating Income (Expense), Net - Other	(4)	57	24	89
kaleo [Member]
Other Interest and Dividend Income			17,582
Unrealized Gain (Loss) on Investments - kaleo	$ 7,100	$ 5,800	$ 24,182	$ 14,000

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, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Segment Reporting Information [Line Items]
Total net sales	$ 239,361	$ 255,319	$ 478,807	$ 505,241
Gross Sales	248,248	263,759	496,714	522,470
Total Segment Income (Loss)	23,261	21,947	39,739	46,789
Interest income	48	228	107	284
Interest expense	1,263	1,577	2,495	3,221
Gain (loss) on investment in kaléo accounted for under fair value method			6,600	14,000
Gain (Loss) on Disposition of Assets			(11)	(109)
Stock option-based compensation costs	898	305	1,313	391
Corporate expenses, net	9,331	6,824	17,492	14,740
Income from continuing operations before income taxes	18,917	19,269	42,728	42,721
Income taxes from continuing operations	4,440	4,547	8,467	9,834
Net income	14,477	14,722	34,261	32,887
kaleo
Segment Reporting Information [Line Items]
Gain (loss) on investment in kaléo accounted for under fair value method	7,100	5,800	24,182	14,000
PE Films
Segment Reporting Information [Line Items]
Total net sales	69,161	82,457	135,941	175,707
Operating profit from ongoing operations	7,766	8,678	10,717	22,712
Plant shutdowns, asset impairments, restructurings and other	(1,523)	(1,135)	(2,901)	(2,187)
Flexible Packaging Films [Member] [Domain]
Segment Reporting Information [Line Items]
Total net sales	33,443	28,304	67,062	56,741
Operating profit from ongoing operations	2,517	1,294	5,377	3,008
Plant shutdowns, asset impairments, restructurings and other	0	0	0	0
Aluminum Extrusions
Segment Reporting Information [Line Items]
Total net sales	136,757	144,558	275,804	272,793
Operating profit from ongoing operations	14,518	13,156	26,603	23,355
Plant shutdowns, asset impairments, restructurings and other	(17)	(46)	(57)	(99)
Shipping and Handling [Member]
Segment Reporting Information [Line Items]
Cost of goods sold	8,887	8,440	17,907	17,229
Personal Care Materials [Member] | PE Films
Segment Reporting Information [Line Items]
Total net sales	37,956	55,985	82,812	117,629
Surface Protection Films [Member] | PE Films
Segment Reporting Information [Line Items]
Total net sales	29,253	24,918	49,142	54,733
Films For Other Markets [Member] | PE Films
Segment Reporting Information [Line Items]
Total net sales	1,952	1,555	3,987	3,345
Film Products Subtotal [Member] | PE Films
Segment Reporting Information [Line Items]
Total net sales	69,161	82,458	135,941	175,707
Nonresidential Building And Construction [Member] | Aluminum Extrusions
Segment Reporting Information [Line Items]
Total net sales	69,019	72,442	138,657	137,629
Consumer Durables [Member] | Aluminum Extrusions
Segment Reporting Information [Line Items]
Total net sales	16,381	17,161	31,926	32,309
Distribution [Member] | Aluminum Extrusions
Segment Reporting Information [Line Items]
Total net sales	8,739	12,031	17,312	22,961
Automotive [Member] | Aluminum Extrusions
Segment Reporting Information [Line Items]
Total net sales	12,496	11,157	25,123	20,787
Residential Building And Construction [Member] | Aluminum Extrusions
Segment Reporting Information [Line Items]
Total net sales	10,278	12,343	21,950	21,813
Machinery and Equipment BNL [Domain] | Aluminum Extrusions
Segment Reporting Information [Line Items]
Total net sales	9,471	9,867	19,394	19,144
Electrical [Member] | Aluminum Extrusions
Segment Reporting Information [Line Items]
Total net sales	10,373	9,556	21,442	18,150
Aluminum Extrusions Subtotal [Member] | Aluminum Extrusions
Segment Reporting Information [Line Items]
Total net sales	136,757	144,557	275,804	272,793
Product [Member]
Segment Reporting Information [Line Items]
Cost of goods sold	$ 192,581	$ 210,667	$ 393,235	$ 413,856

Segment Reporting (Schedule O_2

Segment Reporting (Schedule Of Identifiable Assets By Segment) (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018	Jun. 30, 2018	Dec. 31, 2017
Subtotal	$ 584,857	$ 572,056
General corporate	105,474	100,920
Cash, cash equivalents, and restricted cash at beginning of period	39,769	34,397	$ 62,321	$ 36,491
Total assets	730,100	707,373
PE Films
Total assets	232,316	231,720
Flexible Packaging Films [Member] [Domain]
Total assets	63,826	58,964
Aluminum Extrusions
Total assets	$ 288,715	$ 281,372

Segment Reporting Schedule of R

Segment Reporting Schedule of Revenue by Geographic Location (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Disaggregation of Revenue [Line Items]
Sales	$ 239,361	$ 255,319	$ 478,807	$ 505,241
UNITED STATES
Disaggregation of Revenue [Line Items]
Sales	162,788	171,185	335,042	330,747
PE Films
Disaggregation of Revenue [Line Items]
Sales	69,161	82,457	135,941	175,707
PE Films | Personal Care Materials [Member]
Disaggregation of Revenue [Line Items]
Sales	37,956	55,985	82,812	117,629
PE Films | Surface Protection Films [Member]
Disaggregation of Revenue [Line Items]
Sales	29,253	24,918	49,142	54,733
PE Films | Films For Other Markets [Member]
Disaggregation of Revenue [Line Items]
Sales	1,952	1,555	3,987	3,345
PE Films | Film Products Subtotal [Member]
Disaggregation of Revenue [Line Items]
Sales	69,161	82,458	135,941	175,707
Flexible Packaging Films [Member] [Domain]
Disaggregation of Revenue [Line Items]
Sales	33,443	28,304	67,062	56,741
Aluminum Extrusions
Disaggregation of Revenue [Line Items]
Sales	136,757	144,558	275,804	272,793
Aluminum Extrusions | Nonresidential Building And Construction [Member]
Disaggregation of Revenue [Line Items]
Sales	69,019	72,442	138,657	137,629
Aluminum Extrusions | Consumer Durables [Member]
Disaggregation of Revenue [Line Items]
Sales	16,381	17,161	31,926	32,309
Aluminum Extrusions | Distribution [Member]
Disaggregation of Revenue [Line Items]
Sales	8,739	12,031	17,312	22,961
Aluminum Extrusions | Automotive [Member]
Disaggregation of Revenue [Line Items]
Sales	12,496	11,157	25,123	20,787
Aluminum Extrusions | Residential Building And Construction [Member]
Disaggregation of Revenue [Line Items]
Sales	10,278	12,343	21,950	21,813
Aluminum Extrusions | Aluminum Extrusions Subtotal [Member]
Disaggregation of Revenue [Line Items]
Sales	136,757	144,557	275,804	272,793
Aluminum Extrusions | Machinery and Equipment BNL [Domain]
Disaggregation of Revenue [Line Items]
Sales	9,471	9,867	19,394	19,144
Aluminum Extrusions | Electrical [Member]
Disaggregation of Revenue [Line Items]
Sales	10,373	9,556	21,442	18,150
Exports From United States [Member] | Asia [Member]
Disaggregation of Revenue [Line Items]
Sales	24,513	18,884	38,006	42,476
Exports From United States [Member] | CANADA
Disaggregation of Revenue [Line Items]
Sales	5,872	14,239	9,477	27,537
Exports From United States [Member] | Europe [Member]
Disaggregation of Revenue [Line Items]
Sales	1,517	1,697	2,877	3,519
Exports From United States [Member] | Latin America [Member]
Disaggregation of Revenue [Line Items]
Sales	2,670	3,654	5,537	6,706
Operations Outside United States [Member] | BRAZIL
Disaggregation of Revenue [Line Items]
Sales	27,582	23,659	55,721	46,811
Operations Outside United States [Member] | NETHERLANDS
Disaggregation of Revenue [Line Items]
Sales	8,450	11,394	18,037	23,322
Operations Outside United States [Member] | HUNGARY
Disaggregation of Revenue [Line Items]
Sales	5,162	8,519	11,996	17,337
Operations Outside United States [Member] | CHINA
Disaggregation of Revenue [Line Items]
Sales	0	1,692	230	3,966
Operations Outside United States [Member] | INDIA
Disaggregation of Revenue [Line Items]
Sales	$ 807	$ 396	$ 1,884	$ 2,820

Income Taxes (Narrative) (Detai

Income Taxes (Narrative) (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Income Taxes [Line Items]
Effective Income Tax Rate Reconciliation - U.S. Tax on Foreign Branch Income			$ 1,808,000	$ 736,000
Effective Income Tax Rate Reconciliation - U.S. Tax on Foreign Branch Income - Percentage			5.00%	1.70%
Effective Income Tax Rate Reconciliation, Tax Credit, Research, Amount			$ (255,000)	$ (188,000)
Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount			$ 8,972,000	$ 8,971,000
Effective Income Tax Rate Reconciliation, Tax Credit, Foreign, Percent			(3.00%)	(1.50%)
effective income tax rate reconciliation, valuation allowance due to foreign losses			$ (1,353,000)	$ (383,000)
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			$ 1,191,000	$ 669,000
Effective Income Tax Rate Reconciliation Amount - FDII			(445,000)	(309,000)
Effective Income Tax Rate Reconciliation, Tax Credit, Amount			$ (1,074,000)	$ 655,000
Effective Income Tax Rate Reconciliation, Foreign Income Tax Rate Differential, Percent			3.30%	1.60%
Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Amount			$ 468,000	$ 537,000
Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Percent			1.10%	1.20%
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Share-based Compensation Cost, Amount			$ (141,000)	$ 176,000
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Share-based Compensation Cost, Percent			(0.40%)	0.40%
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Amount			$ 217,000	$ 123,000
Effective Income Tax Rate Reconciliation Percent - FDII			(1.20%)	(0.70%)
Effective Income Tax Rate Reconciliation, Tax Settlement, Other, Amount			$ (154,000)	$ 100,000
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Percent			0.60%	0.30%
Effective Income Tax Rate Reconciliation Operating Loss Carryforwards Valuation Allowance For Foreign Country			(3.70%)	(0.90%)
Effective Income Tax Rate Reconciliation Capital Loss Carryforwards Valuation Allowance, Amount			$ 0	$ 91,000
Effective Income Tax Rate Reconciliation Capital Loss Carryforwards Valuation Allowance			0.00%	0.20%
Effective Income Tax Rate Reconciliation, Deduction, Amount			$ (8,467,000)	$ (9,834,000)
Income Tax Expense (Benefit)	$ 4,440,000	$ 4,547,000	$ 8,467,000	$ 9,834,000
Effective Income Tax Rate Reconciliation, Percent			19.80%	23.00%
Income (Loss) from Continuing Operations before Income Taxes, Extraordinary Items, Noncontrolling Interest	18,917,000	$ 19,269,000	$ 42,728,000	$ 42,721,000
Effective Income Tax Rate Reconciliation, Tax Contingency, Percent			(0.40%)	0.20%
Effective Income Tax Rate Reconciliation, Prior Year Income Taxes, Amount			$ 152,000	$ (34,000)
Income Tax Examination, Interest Accrued	$ 200,000		$ 200,000
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			$ 1,100,000	$ 700,000
Terphane Ltda [Member]
Income Taxes [Line Items]
Current Effective Tax Rate Including Social Contribution On Income			15.25%
LengthBrazilianTaxIncentive			10 years

Income Taxes (Schedule Of Effec

Income Taxes (Schedule Of Effective Income Tax Rate For Continuing Operations) (Details) - USD ($)	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018
Income Tax Disclosure [Abstract]
Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount	$ 8,972,000	$ 8,971,000
Income tax expense at federal statutory rate	21.00%	21.00%
Effective Income Tax Rate Reconciliation, Foreign Income Tax Rate Differential, Amount	$ 1,191,000	$ 669,000
State taxes, net of federal income tax benefit	1.10%	1.20%
Income tax contingency accruals and tax settlements	(0.40%)	0.20%
Effective Income Tax Rate Reconciliation, Prior Year Income Taxes, Amount	$ 152,000	$ (34,000)
Effective Income Tax Rate Reconciliation Capital Loss Carryforwards Valuation Allowance, Amount	0	91,000
Effective Income Tax Rate Reconciliation, Tax Credit, Research, Amount	$ (255,000)	$ (188,000)
Changes in estimates related to prior year tax provision	0.40%	(0.10%)
Non-deductible expenses	0.60%	0.30%
Valuation allowance for foreign operating loss carry-forwards	(3.70%)	(0.90%)
Research and development tax credit	(0.70%)	(0.40%)
Foreign rate differences	3.30%	1.60%
Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Amount	$ 468,000	$ 537,000
Foreign tax incentives	(3.00%)	(1.50%)
Effective Income Tax Rate Reconciliation, Deduction, Dividends, Amount	$ (919,000)	$ 0
Effective Income Tax Rate Reconciliation, Deduction, Dividend, Percent	(2.20%)	0.00%
effective income tax rate reconciliation, valuation allowance due to foreign losses	$ (1,353,000)	$ (383,000)
Valuation allowance for capital loss carry-forwards	0.00%	0.20%
Effective Income Tax Rate Reconciliation, Deduction, Amount	$ (8,467,000)	$ (9,834,000)
Effective income tax rate for income from continuing operations	19.80%	23.00%
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Share-based Compensation Cost, Amount	$ (141,000)	$ 176,000
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Share-based Compensation Cost, Percent	(0.40%)	0.40%
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Amount	$ 217,000	$ 123,000
Effective Income Tax Rate Reconciliation, Tax Settlement, Other, Amount	(154,000)	100,000
Effective Income Tax Rate Reconciliation Amount - FDII	$ (445,000)	$ (309,000)
Effective Income Tax Rate Reconciliation Percent - FDII	(1.20%)	(0.70%)
Effective Income Tax Rate Reconciliation, Tax Credit, Amount	$ (1,074,000)	$ 655,000
Effective Income Tax Rate Reconciliation - U.S. Tax on Foreign Branch Income	$ 1,808,000	$ 736,000
Effective Income Tax Rate Reconciliation - U.S. Tax on Foreign Branch Income - Percentage	5.00%	1.70%

New Accounting Pronouncements N

New Accounting Pronouncements New Accounting Pronouncements (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Jan. 01, 2019	Dec. 31, 2018
New Accounting Pronouncements [Abstract]
Operating Lease, Right-of-Use Asset	$ 19,610	$ 21,000	$ 0
Operating Lease, Liability, Noncurrent	$ 18,526	$ 22,000

Debt (Details)

Debt (Details)	6 Months Ended
	Jun. 30, 2019USD ($)	Jun. 28, 2019USD ($)	Mar. 01, 2016USD ($)
Line of Credit Facility [Line Items]
Credit Spread Over London Interbank Offered Rate Basis Points	16250.00%
Secured Revolving Credit Facility [Member]
Line of Credit Facility [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity		$ 500,000,000
Line Of Credit Facility Additional Borrowing Capacity		$ 100,000,000	$ 400,000,000
Line of credit facility, covenant terms, maximum debt to EBITDA ratio	4
Line of credit facility, covenant terms, minimum adjusted EBIT-to-interest expense ratio	3
Line Of Credit Facility, Covenant Terms, Maximum Aggregate Dividends	$ 130,000,000
Line of credit facility, covenant terms, percentage of shareholders' equity to net income	50.00%
Credit Facility covenant leverage ratio three times limitation	3
Credit Facility limitation on dividend payments at leverage ratio greater than 3.00x	$ 5,000,000
Credit Facility, covenants, 50% of net income limitation when leverage ratio exceeds 3.00x	50.00%
Indebtedness To Adjusted Ebitda Ratio Greater Than Three Point Five But Less Than Or Equal To Four [Member]
Line of Credit Facility [Line Items]
Credit Spread Over London Interbank Offered Rate Basis Points	2.00%
Line of Credit Facility, Commitment Fee Percentage	0.40%
Indebtedness To Adjusted Ebitda Ratio Greater Than Three But Less Than Or Equal To Three Point Five [Member]
Line of Credit Facility [Line Items]
Credit Spread Over London Interbank Offered Rate Basis Points	1.875%
Line of Credit Facility, Commitment Fee Percentage	0.35%
Indebtedness To Adjusted Ebitda Ratio Greater Than Two But Less Than Or Equal To Three [Member]
Line of Credit Facility [Line Items]
Credit Spread Over London Interbank Offered Rate Basis Points	1.75%
Line of Credit Facility, Commitment Fee Percentage	0.30%
Indebtedness To Adjusted Ebitda Ratio Greater Than One But Less Than Or Equal To Two [Member]
Line of Credit Facility [Line Items]
Credit Spread Over London Interbank Offered Rate Basis Points	1.625%
Line of Credit Facility, Commitment Fee Percentage	0.25%
Indebtedness To Adjusted Ebitda Ratio Less Than Or Equal To One [Member]
Line of Credit Facility [Line Items]
Line Of Credit Facility Covenant Terms Debt To Ebitda Ratio		1
Credit Spread Over London Interbank Offered Rate Basis Points	1.50%
Line of Credit Facility, Commitment Fee Percentage	0.20%
Minimum | Indebtedness To Adjusted Ebitda Ratio Greater Than Three Point Five But Less Than Or Equal To Four [Member]
Line of Credit Facility [Line Items]
Line Of Credit Facility Covenant Terms Debt To Ebitda Ratio		3.5
Minimum | Indebtedness To Adjusted Ebitda Ratio Greater Than Three But Less Than Or Equal To Three Point Five [Member]
Line of Credit Facility [Line Items]
Line Of Credit Facility Covenant Terms Debt To Ebitda Ratio		3
Minimum | Indebtedness To Adjusted Ebitda Ratio Greater Than Two But Less Than Or Equal To Three [Member]
Line of Credit Facility [Line Items]
Line Of Credit Facility Covenant Terms Debt To Ebitda Ratio		2
Minimum | Indebtedness To Adjusted Ebitda Ratio Greater Than One But Less Than Or Equal To Two [Member]
Line of Credit Facility [Line Items]
Line Of Credit Facility Covenant Terms Debt To Ebitda Ratio		1
Maximum | Indebtedness To Adjusted Ebitda Ratio Greater Than Three Point Five But Less Than Or Equal To Four [Member]
Line of Credit Facility [Line Items]
Line Of Credit Facility Covenant Terms Debt To Ebitda Ratio		4
Maximum | Indebtedness To Adjusted Ebitda Ratio Greater Than Three But Less Than Or Equal To Three Point Five [Member]
Line of Credit Facility [Line Items]
Line Of Credit Facility Covenant Terms Debt To Ebitda Ratio		3.5
Maximum | Indebtedness To Adjusted Ebitda Ratio Greater Than Two But Less Than Or Equal To Three [Member]
Line of Credit Facility [Line Items]
Line Of Credit Facility Covenant Terms Debt To Ebitda Ratio		3
Maximum | Indebtedness To Adjusted Ebitda Ratio Greater Than One But Less Than Or Equal To Two [Member]
Line of Credit Facility [Line Items]
Line Of Credit Facility Covenant Terms Debt To Ebitda Ratio		2