Tredegar (TG) 10-K 22 Feb 17 2016 FY Annual report Financial data

Document And Entity Information

Document And Entity Information - USD ($)	12 Months Ended
	Dec. 31, 2016	Jan. 31, 2017	Jun. 30, 2016
Document And Entity Information [Abstract]
Entity Registrant Name	TREDEGAR CORP
Entity Central Index Key	850,429
Current Fiscal Year End Date	--12-31
Entity Filer Category	Accelerated Filer
Document Type	10-K
Document Period End Date	Dec. 31, 2016
Document Fiscal Year Focus	2,016
Document Fiscal Period Focus (Q1,Q2,Q3,FY)	FY
Amendment Flag	false
Entity Common Stock, Shares Outstanding		32,963,939
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Public Float			$ 411,286,270

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Thousands		Dec. 31, 2016	Dec. 31, 2015
Assets
Cash and cash equivalents	[1]	$ 29,511	$ 44,156
Accounts and other receivables, net of allowance for doubtful accounts and sales returns of $3,102 in 2016 and $3,746 in 2015		97,388	94,217
Income taxes recoverable		7,518	360
Inventories		66,069	65,325
Prepaid expenses and other		7,738	6,946
Total current assets		208,224	211,004
Property, plant and equipment, at cost:
Land and land improvements		11,294	10,953
Buildings		126,064	120,544
Machinery and equipment		660,272	623,181
Total property, plant and equipment		797,630	754,678
Less accumulated depreciation		(536,905)	(523,363)
Net property, plant and equipment		260,725	231,315
Goodwill and other intangibles		151,423	153,072
Other assets and deferred charges		30,790	27,869
Total assets	[1]	651,162	623,260
Current liabilities:
Accounts payable		81,342	84,148
Accrued expenses		38,647	33,653
Total current liabilities		119,989	117,801
Long-term debt		95,000	104,000
Deferred income taxes		21,110	18,656
Other noncurrent liabilities		104,280	110,055
Total liabilities		340,379	350,512
Commitments and contingencies
Shareholders’ equity:
Issued and outstanding—32,933,807 shares in 2016 and 32,682,162 in 2015 (including restricted stock)		32,007	29,467
Common stock held in trust for savings restoration plan (69,622 shares in 2016 and 67,726 in 2015)		(1,497)	(1,467)
Accumulated other comprehensive income (loss):
Foreign currency translation adjustment		(93,970)	(112,807)
Gain (loss) on derivative financial instruments		863	(373)
Pension and other postretirement benefit adjustments		(90,127)	(95,539)
Retained earnings		463,507	453,467
Total shareholders’ equity		310,783	272,748
Total liabilities and shareholders’ equity		$ 651,162	$ 623,260
[1]	Information on exports and foreign operations are provided on the previous page. Cash and cash equivalents includes funds held in locations outside the U.S. of $23.8 million and $27.7 million at December 31, 2016 and 2015, respectively. Export sales relate almost entirely 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.

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Statement of Financial Position [Abstract]
Accounts and other receivables, allowance for doubtful accounts and sales returns	$ 3,102	$ 3,746
Common stock, no par value (shares)
Common stock, shares authorized (shares)	150,000,000	150,000,000
Common stock, shares, issued (shares)	32,933,807	32,682,162
Common stock, shares, outstanding (shares)	32,933,807	32,682,162
Common stock held in trust for savings restoration plan (shares)	69,622	67,726

Consolidated Statements Of Inco

Consolidated Statements Of Income - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Revenues and other:
Sales		$ 828,341	$ 896,177	$ 951,826
Other income (expense), net		2,381	(20,113)	(6,697)
Total revenues, net of other expenses		830,722	876,064	945,129
Costs and expenses:
Cost of goods sold		668,626	725,459	778,113
Freight		29,069	29,838	28,793
Selling, general and administrative		75,754	71,911	69,526
Research and development		19,122	16,173	12,147
Amortization of intangibles		3,978	4,073	5,395
Interest expense		3,806	3,502	2,713
Asset impairments and costs associated with exit and disposal activities		2,684	3,850	3,026
Goodwill, Impairment Loss		0	44,465	0
Total		803,039	899,271	899,713
Income (loss) from continuing operations before income taxes		27,683	(23,207)	45,416
Income taxes	[1]	3,217	8,928	9,387
Income (loss) from continuing operations		24,466	(32,135)	36,029
Income (loss) from discontinued operations, net of tax	[1]	0	0	850
Net income (loss)		$ 24,466	$ (32,135)	$ 36,879
Basic:
Continuing operations (in usd per share)		$ 0.75	$ (0.99)	$ 1.12
Discontinued operations (in usd per share)		0	0	0.02
Net income (in usd per share)		0.75	(0.99)	1.14
Diluted:
Continuing operations (in usd per share)		0.75	(0.99)	1.11
Discontinued operations (in usd per share)		0	0	0.02
Net income (in usd per share)		$ 0.75	$ (0.99)	$ 1.13
[1]	See Notes 1, 3, 4 and 18 for more information on losses associated with plant shutdowns, asset impairments and restructurings, unusual items, gains or losses from sale of assets, gains or losses on an investment accounted for under the fair value method and other items.

Consolidated Statements Of Comp

Consolidated Statements Of Comprehensive Income (Loss) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ 24,466	$ (32,135)	$ 36,879
Foreign currency translation adjustment:
Unrealized foreign currency translation adjustment (net of tax benefit of $729 in 2016, tax benefit of $890 in 2015 and tax benefit of $2,396 in 2014)	18,837	(65,537)	(28,065)
Derivative financial instruments adjustment	1,236	(1,029)	(109)
Pension & other post-retirement benefit adjustments
Net gains (losses) and prior service costs (net of tax benefit of $1,874 in 2016, tax benefit of $226 in 2015 and tax benefit of $22,445 in 2014)	(3,288)	(2,176)	(38,730)
Amortization of prior service costs and net gains or losses (net of tax of $4,398 in 2016, tax of $5,823 in 2015 and tax of $3,582 in 2014)	8,700	10,218	6,997
Other comprehensive income (loss)	25,485	(58,524)	(59,907)
Comprehensive income (loss)	$ 49,951	$ (90,659)	$ (23,028)

Consolidated Statements Of Com6

Consolidated Statements Of Comprehensive Income (Loss) (Parenthetical) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Statement of Comprehensive Income [Abstract]
Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Tax	$ (729)	$ (890)	$ (2,396)
Derivative financial instruments adjustment, tax (benefit)	727	(550)	(112)
Net gains or losses and prior service costs, tax (benefit)	(1,874)	(226)	(22,445)
Amortization of prior service costs and net gains or losses, tax	$ 4,398	$ 5,823	$ 3,582

Consolidated Statements Of Cash

Consolidated Statements Of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016		Dec. 31, 2015		Dec. 31, 2014
Cash flows from operating activities:
Net income (loss)	$ 24,466		$ (32,135)		$ 36,879
Adjustments for noncash items:
Depreciation	28,494		30,909		35,423
Amortization of intangibles	3,978		4,073		5,395
Goodwill, Impairment Loss	0		44,465		0
Deferred income taxes	(3,689)		(10,523)		(11,489)
Accrued pension and postretirement benefits	11,047		12,521		6,974
(Gain) loss on an investment accounted for under the fair value method	(1,600)		20,500		(2,000)
Loss on asset impairments	1,436		403		993
(Gain) loss on sale of assets	(220)		(11)		(1,031)
Insurance Recoveries	(1,634)		0		0
Changes in assets and liabilities:
Accounts and notes receivables	92		9,180		(18,696)
Inventories	1,127		1,137		(8,803)
Income taxes recoverable/payable	(7,061)		(1,849)		(906)
Prepaid expenses and other	(1,914)		(1,256)		496
Accounts payable and accrued expenses	161		(2,455)		5,554
Pension and Other Postretirement Benefit Contributions	(8,061)		(2,709)		(3,108)
Other, net	2,250		2,006		5,554
Net cash provided by operating activities	48,872		74,256		51,235
Cash flows from investing activities:
Capital expenditures	(45,457)		(32,831)		(44,898)
Proceeds from Divestiture of Businesses	0		0		4,500
Proceeds from Insurance Settlement, Investing Activities	1,156		0		0
Payments of Financing Costs	(2,606)		(78)		(29)
Proceeds from the sale of assets and other	2,308		1,416		2,125
Net cash used in investing activities	(41,993)		(31,415)		(38,273)
Cash flows from financing activities:
Borrowings	96,750		107,000		116,000
Debt principal payments	(105,750)		(140,250)		(117,750)
Dividends paid	(14,456)		(13,725)		(11,007)
Proceeds from exercise of stock options and other	2,313		2,858		410
Net cash used in financing activities	(23,749)		(44,195)		(12,376)
Effect of exchange rate changes on cash	2,225		(4,546)		(3,147)
Decrease in cash and cash equivalents	(14,645)		(5,900)		(2,561)
Cash and cash equivalents at beginning of period	44,156	[1]	50,056		52,617
Cash and cash equivalents at end of period	29,511	[1]	44,156	[1]	50,056
Supplemental cash flow information:
Interest payments	3,074		3,508		3,320
Income tax payments (refunds), net	$ 15,406		$ 20,118		$ 20,890
[1]	Information on exports and foreign operations are provided on the previous page. Cash and cash equivalents includes funds held in locations outside the U.S. of $23.8 million and $27.7 million at December 31, 2016 and 2015, respectively. Export sales relate almost entirely 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.

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 and other post-retirement benefit adjustments
Balance at Dec. 31, 2013	$ 402,664	$ 20,641	$ 473,729	$ (1,418)	$ (19,205)	$ 765	$ (71,848)
Balance, shares at Dec. 31, 2013		32,305,145
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	36,879		36,879
Foreign currency translation adjustment	(28,065)				(28,065)
Derivative financial instruments adjustment	(109)					(109)
Net actuarial gains (losses) and prior service costs	(38,730)						(38,730)
Amortization of prior service costs and net gains or losses	6,997						6,997
Cash dividends declared	(11,007)		(11,007)
Stock Issued During Period, Shares, Restricted Stock Award, Net of Forfeitures		85,129
Share Based Compensation Expense, Value	3,224	$ 3,224
Issued upon exercise of stock options & other	499	$ 499
Issued upon exercise of stock options (including related income tax benefits) & other, shares		31,808
Shareholder Rights Plan redemption	323	$ 0
Shares received from the sale of Falling Springs, LLC, shares		0
Tredegar common stock purchased by trust for savings restoration plan	0		22	(22)
Balance at Dec. 31, 2014	372,029	$ 24,364	499,300	(1,440)	(47,270)	656	(103,581)
Balance, shares at Dec. 31, 2014		32,422,082
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	(32,135)		(32,135)
Foreign currency translation adjustment	(65,537)				(65,537)
Derivative financial instruments adjustment	(1,029)					(1,029)
Net actuarial gains (losses) and prior service costs	(2,176)						(2,176)
Amortization of prior service costs and net gains or losses	10,218						10,218
Cash dividends declared	(13,725)		(13,725)
Stock Issued During Period, Shares, Restricted Stock Award, Net of Forfeitures		118,440
Share Based Compensation Expense, Value	3,435	$ 3,435
Issued upon exercise of stock options & other	1,668	$ 1,668
Issued upon exercise of stock options (including related income tax benefits) & other, shares		141,640
Shareholder Rights Redemption Payment	(323)
Tredegar common stock purchased by trust for savings restoration plan	0		27	(27)
Balance at Dec. 31, 2015	272,748	$ 29,467	453,467	(1,467)	(112,807)	(373)	(95,539)
Balance, shares at Dec. 31, 2015		32,682,162
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	24,466		24,466
Foreign currency translation adjustment	18,837				18,837
Derivative financial instruments adjustment	1,236					1,236
Net actuarial gains (losses) and prior service costs	(3,288)						(3,288)
Amortization of prior service costs and net gains or losses	8,700						8,700
Cash dividends declared	(14,456)		(14,456)
Stock Issued During Period, Shares, Restricted Stock Award, Net of Forfeitures		127,169
Share Based Compensation Expense, Value	1,461	$ 1,461
Issued upon exercise of stock options & other	1,079	$ 1,079
Issued upon exercise of stock options (including related income tax benefits) & other, shares		124,476
Tredegar common stock purchased by trust for savings restoration plan	0		30	(30)
Balance at Dec. 31, 2016	$ 310,783	$ 32,007	$ 463,507	$ (1,497)	$ (93,970)	$ 863	$ (90,127)
Balance, shares at Dec. 31, 2016		32,933,807

Consolidated Statements Of Sha9

Consolidated Statements Of Shareholders' Equity (Parenthetical) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Statement of Stockholders' Equity [Abstract]
Foreign currency translation adjustment, tax (benefit)	$ (729)	$ (890)	$ (2,396)
Derivative financial instruments adjustment, tax (benefit)	727	(550)	(112)
Net gains or losses and prior service costs, tax (benefit)	(1,874)	(226)	(22,445)
Amortization of prior service costs and net gains or losses, tax	$ 4,398	$ 5,823	$ 3,582
Cash dividends declared (in usd per share)	$ 0.44	$ 0.42	$ 0.34
Issued upon exercise of stock options, income (tax) benefit	$ 1,109	$ 302	$ (3)

Summary Of Significant Accounti

Summary Of Significant Accounting Policies	12 Months Ended
	Dec. 31, 2016
Accounting Policies [Abstract]
Summary Of Significant Accounting Policies	SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Organization and Nature of Operations. Tredegar Corporation and subsidiaries (collectively “Tredegar,” “the Company,” “we,” “us” or “our”) are primarily engaged in the manufacture of polyethylene films, polyester films and aluminum extrusions. See Notes 10 and 18 regarding restructurings and Note 3 regarding discontinued operations. Basis of Presentation. The consolidated financial statements include the accounts and operations of Tredegar and all of its majority-owned subsidiaries. Intercompany accounts and transactions have been eliminated in consolidation. On February 12, 2008, Tredegar sold its aluminum extrusions business in Canada. All historical results for this business have been reflected as discontinued operations in these financial statements; however, cash flows for discontinued operations have not been separately disclosed in the consolidated statements of cash flows. See Note 3 regarding discontinued operations. The preparation of financial statements in conformity with United States (“U.S.”) generally accepted accounting principles (“GAAP”) requires Tredegar to make estimates and assumptions that affect the reported amounts of revenues, expenses, assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements. Actual results could differ from those estimates. Tredegar has historically reported two business segments: Film Products and Aluminum Extrusions. In the third quarter of 2015, the Company divided Film Products into two separate operating segments: PE Films and Flexible Packaging Films. All historical results for PE Films and Flexible Packaging Films have been separately presented to conform with the new presentation of segments. See Note 5 regarding business segments. Certain amounts for the prior years have been reclassified to conform to current year presentation. Fiscal Year End. The Company operates on a calendar fiscal year except the Aluminum Extrusions segment, which operates on a 52/53-week fiscal year basis. References to Aluminum Extrusions for 2016, 2015 and 2014 relate to the 52-week fiscal years ended December 26, 2016, December 27, 2015 and December 28, 2014, 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. Foreign Currency Translation. The financial statements of subsidiaries located outside the U.S., where the local currency is the functional currency, are translated into U.S. Dollars using exchange rates in effect at the period end for assets and liabilities and average exchange rates during each reporting period for results of operations. Adjustments resulting from the translation of these financial statements are reflected as a separate component of shareholders’ equity. There are no operating subsidiaries located outside the U.S. where the U.S. Dollar is the functional currency. Transaction and remeasurement gains or losses included in income were losses of $3.6 million , $4.0 million and $1.5 million in 2016 , 2015 and 2014 , respectively. These amounts do not include the effects between reporting periods that exchange rate changes have on income of the locations outside the U.S. that result from translation into U.S. Dollars. Cash and Cash Equivalents. Cash and cash equivalents consist of cash on hand in excess of daily operating requirements and highly liquid investments with original maturities of three months or less. At December 31, 2016 and 2015 , Tredegar had cash and cash equivalents of $29.5 million and $44.2 million , respectively, including funds held in locations outside the U.S. of $23.8 million and $27.7 million , respectively. The Company’s policy permits investment of excess cash in marketable securities that have the highest credit ratings and maturities of less than one year. The primary objectives of the policy are safety of principal and liquidity. Accounts and Other Receivables. Accounts receivable are stated at the amount invoiced to customers less allowances for doubtful accounts and sales returns. Accounts receivable are non-interest bearing and arise from the sale of product to customers under typical industry trade terms. Notes receivable are not significant. Past due amounts are determined based on established terms and charged-off when deemed uncollectible. The allowance for doubtful accounts is determined based on an assessment of probable losses taking into account past due amounts, customer credit profile, historical experience and current economic conditions. Other receivables include value-added taxes related to certain foreign subsidiaries and other miscellaneous receivables due within one year. Inventories. Inventories are stated at the lower of cost or market, with cost determined on the last-in, first-out (“LIFO”) basis, the weighted average cost or the first-in, first-out basis. Cost elements included in work-in-process and finished goods inventories are raw materials, direct labor and manufacturing overhead. Finished goods, work in process, raw materials and supplies, stores and other inventory are reviewed to determine if inventory quantities are in excess of forecasted usage or if they have become obsolete. Property, Plant and Equipment. Accounts include costs of assets constructed or purchased, related delivery and installation costs and interest incurred on significant capital projects during their construction periods. Expenditures for renewals and betterments also are capitalized, but expenditures for repairs and maintenance are expensed as incurred. The cost and accumulated depreciation applicable to assets retired or sold are removed from the respective accounts, and gains or losses thereon are included in income. Capital expenditures for property, plant and equipment include capitalized interest. Capitalized interest included in capital expenditures for property, plant and equipment was $0.3 million , $0.4 million and $1.1 million in 2016 , 2015 and 2014 , respectively. Depreciation is computed primarily by the straight-line method based on the estimated useful lives of the assets that, except for isolated exceptions, range from 5 to 40 years for buildings and land improvements and 2 to 20 years for machinery and equipment. Investments in Private Entities with Less Than or Equal to 50% Voting Ownership Interest. The Company accounts for its investments in private entities where its voting ownership is less than or equal to 50% based on the facts and circumstances surrounding the investment. Investments are required to be accounted for under the consolidation method in situations where Tredegar is the primary beneficiary of a variable interest entity. The primary beneficiary is the party that has a controlling financial interest in a variable interest entity. The Company is deemed to have a controlling financial interest if it has (i) the power to direct activities of the variable interest entity that most significantly impact its economic performance and (ii) the obligation to absorb losses or the right to receive benefits from the variable interest entity that could potentially be significant to its operations. If the Company is not deemed to be the primary beneficiary in an investment in a variable interest entity then it selects either: (i) the fair value method or (ii) either (a) the cost method if it does not have significant influence over operating and financial policies of the investee or (b) the equity method if it does have significant influence. For those investments measured at fair value, GAAP requires disclosure of the level within the fair value hierarchy in which fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets or liabilities (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3). Goodwill and Other Intangibles. The excess of the purchase price over the fair value of identifiable net assets of acquired companies is allocated to goodwill. The Company assesses goodwill for impairment when events or circumstances indicate that the carrying value may not be recoverable or, at a minimum, on an annual basis (December 1st of each year). The Company’s significant operating units in PE Films include Personal Care and Surface Protection. There are two operating units in Aluminum Extrusions, Bonnell Aluminum and AACOA. Each of these reporting units has separately identifiable operating net assets (operating assets including goodwill and intangible assets net of operating liabilities). The Company recorded a goodwill impairment charge of $44.5 million ( $44.5 million after taxes) to write off the goodwill associated with Flexible Packaging Films in the third quarter of 2015. See Note 8 for additional details. The Company estimates the fair value of its reporting units using discounted cash flow analysis and comparative enterprise value-to-EBITDA (earnings before interest, taxes, depreciation and amortization) multiples. Goodwill of the PE Films operating units, Personal Care and Surface Protection, was tested for impairment at the annual testing date, with the estimated fair value of these reporting units exceeding the carrying value of their net assets by approximately 30% and 48% , respectively, at December 1, 2016. The goodwill of the Aluminum Extrusions reporting unit was tested for impairment at the annual testing date. All goodwill in Aluminum Extrusions is associated with the October 2012 acquisition of AACOA, Inc. (“AACOA”). The estimated fair value of this reporting unit substantially exceeded the carrying value of its net assets at December 1, 2016. Indefinite-lived intangible assets are assessed for impairment when events or circumstances indicate that the carrying value may not be recoverable, or, at a minimum, on an annual basis (December 1st of each year). The Company estimates the fair value of its trade names using a relief-from-royalty method that relies upon a corresponding discounted cash flow analysis. The indefinite-lived intangible assets of Flexible Packaging Films were tested for impairment at the annual testing date, with the estimated fair value of these reporting units exceeding the carrying value of their net assets by approximately 20% at December 1, 2016. For AACOA, the indefinite-lived intangible assets were tested for impairment at the annual testing date, with the estimated fair value substantially exceeding the carrying value of the net assets. Additional disclosure of Tredegar goodwill and other intangible assets is included in Note 8. Impairment of Long-Lived Assets. The Company reviews long-lived assets for possible impairment when events indicate that an impairment may exist. For assets that are held and used in operations, if events indicate that an asset may be impaired, the Company estimates the future unlevered pre-tax cash flows expected to result from the use of the asset and its eventual disposition. Assets are grouped for this purpose at the lowest level for which there are identifiable and independent cash flows. If the sum of these undiscounted pre-tax cash flows is less than the carrying amount of the asset, an impairment loss is calculated. Measurement of the impairment loss is the amount by which the carrying amount exceeds the estimated fair value of the asset group. Assets that are held for sale are reported at the lower of their carrying amount or estimated fair value less cost to sell, with an impairment loss recognized for any write-down required. Pension Costs and Postretirement Benefit Costs Other than Pensions. Pension costs and postretirement benefit costs other than pensions are accrued over the period employees provide service to Tredegar. Liabilities and expenses for pension plans and other postretirement benefits are determined using actuarial methodologies and incorporate significant assumptions, including the rate used to discount the future estimated liability, the long-term rate of return on plan assets, and several assumptions relating to the employee workforce. The Company recognizes the funded status of its pension and other postretirement plans in the accompanying consolidated balance sheets. Tredegar’s policy is to fund its pension plans at amounts not less than the minimum requirements of the Employee Retirement Income Security Act (“ERISA”) of 1974 and to fund postretirement benefits other than pensions when claims are incurred. Revenue Recognition. Revenue from the sale of products, which is shown net of estimated sales returns and allowances, is recognized when title has passed to the customer, the price of the product is fixed and determinable, and collectability is reasonably assured. Amounts billed to customers related to freight have been classified as sales in the accompanying consolidated statements of income. The cost of freight has been classified as a separate line in the accompanying consolidated statements of income. Taxes assessed by a governmental authority that are both imposed on and concurrent with a specific revenue-producing transaction between Tredegar and its customers (such as value-added taxes) are accounted for on a net basis and therefore excluded from revenues. Research & Development (“R&D”) Costs. R&D costs are expensed as incurred and include primarily salaries, wages, employee benefits, equipment depreciation, facility costs and the cost of materials consumed relating to R&D efforts. R&D costs include a reasonable allocation of indirect costs. Income Taxes. Income taxes are recognized during the period in which transactions enter into the determination of income for financial reporting purposes, with deferred income taxes being provided at enacted statutory tax rates on the differences between the financial reporting and tax bases of assets and liabilities (see Note 17). Tredegar’s policy is to accrue U.S. federal income taxes to the extent required under GAAP on unremitted earnings of all foreign subsidiaries. Prior to the second quarter of 2016, deferred U.S. federal income taxes had not been recorded for the undistributed earnings for Terphane Ltda. because the Company had intended to permanently reinvest these earnings. Due to concerns about the current political and economic conditions in Brazil, Terphane Ltda. has begun making cash distributions to the Company. During 2016, Terphane Ltda. paid dividends totaling $13.3 million to the Company. Because of the accumulation of significant losses related to foreign currency translations at Terphane Ltda., there were no unrecorded deferred tax liabilities associated with the U.S. federal income taxes and foreign withholding taxes on Terphane Ltda.’s undistributed earnings as of December 31, 2016 and December 31, 2015. A valuation allowance is recorded in the period when the Company determines that it is more likely than not that all or a portion of deferred tax assets may not be realized. The establishment and removal of a valuation allowance requires the Company to consider all positive and negative evidence and make a judgmental decision regarding the amount of valuation allowance required as of a reporting date. The benefit of an uncertain tax position is included in the accompanying financial statements when the Company determines that it is more likely than not that the position will be sustained, based on the technical merits of the position, if the taxing authority examines the position and the dispute is litigated. This determination is made on the basis of all the facts, circumstances and information available as of the reporting date. Earnings Per Share. Basic earnings per share is computed using the weighted average number of shares of common stock outstanding. Diluted earnings per share is computed using the weighted average common and potentially dilutive common equivalent shares outstanding, determined as follows: 2016 2015 2014 Weighted average shares outstanding used to compute basic earnings per share 32,761,793 32,578,116 32,302,108 Incremental shares attributable to stock options and restricted stock 13,279 — 251,746 Shares used to compute diluted earnings per share 32,775,072 32,578,116 32,553,854 Incremental shares attributable to stock options and restricted stock are computed using the average market price during the related period. The Company had a net loss from continuing operations in 2015, so there is no dilutive impact for such shares. If the Company had reported net income from continuing operations in 2015, average out-of-the-money options to purchase shares that would have been excluded from the calculation of incremental shares attributable to stock options and restricted stock were 881,513 . The average out-of-the-money options to purchase shares that were excluded from the calculation of incremental shares attributable to stock options and restricted stock were 128,200 in 2016 and 320,849 in 2014 . Stock-Based Employee Compensation Plans. Compensation expense is recorded on all share-based awards based upon its calculated fair value over the requisite service period using the graded-vesting method. The fair value of stock option awards was estimated as of the grant date using the Black-Scholes options-pricing model. The fair value of restricted stock awards was estimated as of the grant date using the closing stock price on that date. The assumptions used in this model for valuing Tredegar stock options granted in 2014 (no grants in 2015 and 2016) were as follows: 2014 Dividend yield 1.3 % Weighted average volatility percentage 43.5 % Weighted average risk-free interest rate 2.0 % Holding period (years): Officers 6.0 Management 5.0 Weighted average exercise price at date of grant (also weighted average market price at date of grant): Officers $ 22.49 Management $ 22.33 The dividend yield is the actual dividend yield on Tredegar’s common stock at the date of grant, which the Company believes is a reasonable estimate of the expected yield during the holding period. The expected volatility is based on the historical volatility of Tredegar’s common stock using a sequential period of historical data equal to the expected holding period of the option. The Company has no reason to believe that future volatility for this period is likely to differ from the past. The assumed risk-free interest rate is based on observed interest rates (zero coupon U.S. Treasury debt securities) appropriate for the expected holding period. The expected holding period and forfeiture assumptions are based on historical experience. Estimated forfeiture assumptions are reviewed through the vesting period. Adjustments are made if actual forfeitures differ from previous estimates. The cumulative effect of a change in estimated forfeitures is recognized in the period of the change. Tredegar stock options granted during 2014 (no grants in 2015 and 2016), and related estimated fair value at the date of grant, are as follows: 2014 Stock options granted (number of shares): Officers 87,820 Management 93,656 Total 181,476 Estimated weighted average fair value of options per share at date of grant: Officers $ 9.21 Management $ 7.60 Total estimated fair value of stock options granted (in thousands) $ 1,521 Additional disclosure of Tredegar stock options is included in Note 13. Financial Instruments. Tredegar uses derivative financial instruments for the purpose of hedging aluminum price volatility and currency exchange rate exposures that exist as part of transactions associated with ongoing business operations. The Company’s derivative financial instruments are designated as and qualify as cash flow hedges and are recognized in the accompanying balance sheet at fair value. A change in the fair value of the derivative that is highly effective and that is designated and qualifies as a cash flow hedge is recorded in other comprehensive income. Gains and losses reported in other comprehensive income (loss) are reclassified to earnings in the periods in which earnings are affected by the variability of cash flows of the hedged transaction. Such gains and losses are reported on the same line as the underlying hedged item, and the cash flows related to financial instruments are classified in the consolidated statements of cash flows in a manner consistent with those of the transactions being hedged. Any hedge ineffectiveness (which represents the amount by which the changes in the fair value of the derivative exceed the variability in the cash flows of the forecasted transaction) is recorded in current period earnings. The amount of gains and losses recognized for hedge ineffectiveness were not material in 2016 , 2015 and 2014 . The Company’s policy requires that it formally document all relationships between hedging instruments and hedged items, as well as its risk management objective and strategy for undertaking various hedge transactions. The Company also formally assesses (both at the hedge’s inception and on an ongoing basis) whether the derivatives that are used in hedging transactions have been highly effective in offsetting changes in the fair value or cash flows of hedged items and whether those derivatives may be expected to remain highly effective in future periods. When it is determined that a derivative is not (or has ceased to be) highly effective as a hedge, the Company discontinues hedge accounting prospectively. As a policy, Tredegar does not engage in speculative or leveraged transactions, nor does it hold or issue financial instruments for trading purposes. Additional disclosure of the utilization of derivative hedging instruments is included in Note 9. Comprehensive Income (Loss). Comprehensive income (loss) is defined as net income or loss as adjusted by other comprehensive income or loss items. Other comprehensive income (loss) includes changes in foreign currency translation adjustments, unrealized gains and losses on derivative financial instruments, prior service costs and net gains or losses from pension and other postretirement benefit plans arising during the period and amortization of these prior service costs and net gain or loss adjustments, all recorded net of deferred income taxes. The following table summarizes the after-tax changes in accumulated other comprehensive income (loss) for the year ended December 31, 2016 : (In Thousands) Foreign currency translation adjustment Gain (loss) on derivative financial instruments Pension and other post-retirement benefit adjustments Total Beginning balance, January 1, 2016 $ (112,807 ) $ (373 ) $ (95,539 ) $ (208,719 ) Other comprehensive income (loss) before reclassifications 18,837 247 (3,288 ) 15,796 Amounts reclassified from accumulated other comprehensive income (loss) — 989 8,700 9,689 Net other comprehensive income (loss) - current period 18,837 1,236 5,412 25,485 Ending balance, December 31, 2016 $ (93,970 ) $ 863 $ (90,127 ) $ (183,234 ) The following table summarizes the after-tax changes in accumulated other comprehensive income (loss) for the year ended December 31, 2015 : (In Thousands) Foreign currency translation adjustment Gain (loss) on derivative financial instruments Pension and other post-retirement benefit adjustments Total Beginning balance, January 1, 2015 $ (47,270 ) $ 656 $ (103,581 ) $ (150,195 ) Other comprehensive income (loss) before reclassifications (65,537 ) (3,221 ) (2,176 ) (70,934 ) Amounts reclassified from accumulated other comprehensive income (loss) — 2,192 10,218 12,410 Net other comprehensive income (loss) - current period (65,537 ) (1,029 ) 8,042 (58,524 ) Ending balance, December 31, 2015 $ (112,807 ) $ (373 ) $ (95,539 ) $ (208,719 ) Reclassifications of balances out of accumulated other comprehensive income (loss) into net income during 2016 are summarized as follows: (In Thousands) Amount reclassified from other comprehensive income (loss) Location of gain (loss) reclassified from accumulated other comprehensive income (loss) to net income (loss) Gain (loss) on derivative financial instruments: Aluminum future contracts, before taxes $ (1,630 ) Cost of sales Foreign currency forward contracts, before taxes 62 Cost of sales Total, before taxes (1,568 ) Income tax expense (benefit) (579 ) Income taxes Total, net of tax $ (989 ) Amortization of pension and other post-retirement benefits: Actuarial gain (loss) and prior service costs, before taxes $ (13,098 ) (a) Income tax expense (benefit) (4,398 ) Income taxes Total, net of tax $ (8,700 ) (a) This component of accumulated other comprehensive income is included in the computation of net periodic pension cost (see Note 14 for additional detail). Reclassifications of balances out of accumulated other comprehensive income (loss) into net income during 2015 are summarized as follows: (In Thousands) Amount reclassified from other comprehensive income (loss) Location of gain (loss) reclassified from accumulated other comprehensive income (loss) to net income Gain (loss) on derivative financial instruments: Aluminum future contracts, before taxes $ (3,538 ) Cost of sales Foreign currency forward contracts, before taxes 62 Cost of sales Total, before taxes (3,476 ) Income tax expense (benefit) (1,284 ) Income taxes Total, net of tax $ (2,192 ) Amortization of pension and other post-retirement benefits: Actuarial gain (loss) and prior service costs, before taxes $ (16,041 ) (a) Income tax expense (benefit) (5,823 ) Income taxes Total, net of tax $ (10,218 ) (a) This component of accumulated other comprehensive income is included in the computation of net periodic pension cost (see Note 14 for additional detail). Reclassifications of balances out of accumulated other comprehensive income (loss) into net income during 2014 are summarized as follows: (In Thousands) Amount reclassified from other comprehensive income (loss) Location of gain (loss) reclassified from accumulated other comprehensive income (loss) to net income Gain (loss) on derivative financial instruments: Aluminum future contracts, before taxes $ 631 Cost of sales Foreign currency forward contracts, before taxes 16 Cost of sales Total, before taxes 647 Income tax expense (benefit) 244 Income taxes Total, net of tax $ 403 Amortization of pension and other post-retirement benefits: Actuarial gain (loss) and prior service costs, before taxes $ (10,579 ) (a) Income tax expense (benefit) (3,582 ) Income taxes Total, net of tax $ (6,997 ) (a) This component of accumulated other comprehensive income is included in the computation of net periodic pension cost (see Note 14 for additional detail). Recently Issued Accounting Standards . In May 2014, the Financial Accounting Standards Board (“FASB”) and International Accounting Standards Board (“IASB”) issued their converged standard on revenue recognition. The revised revenue standard contains principles that an entity will apply to direct the measurement of revenue and timing of when it is recognized. The core principle of the guidance is that the recognition of revenue should depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which an entity expects to be entitled in exchange for those goods and services. To achieve that core principle, an entity will utilize a principle-based five-step approach model. The converged standard also includes more robust disclosure requirements which will require entities to provide sufficient information to enable users of financial statements to understand the nature, amount, timing and uncertainty of revenue and cash flows arising from contracts with customers. In March 2016, amended guidance was issued regarding clarifying the implementation guidance on principal versus agent considerations and in April 2016, clarifying guidance was issued relating to identifying performance obligations and licensing implementation. The effective date of this revised standard is for annual reporting periods beginning after December 15, 2017, including interim periods within that reporting period. Early application is permitted as of annual reporting periods beginning after December 15, 2016, including interim reporting periods within that annual reporting period. The converged standard can be adopted either retrospectively or through the use of a practical expedient. The Company continues to assess the impact of this standard. The Company has a team in place to analyze the impact of standard, and the related guidance issued, across all revenue streams to evaluate the impact of the new standard on revenue contracts. This includes reviewing current accounting policies and practices to identify potential differences that would result from applying the requirements under the new standard. In 2016, the Company made progress on contract reviews and expects to complete the contract evaluations and validate results in the first half of 2017. The Company has also started evaluating the new disclosure requirements and expects to complete its evaluations of the impacts of the accounting and disclosure requirements on its business processes, controls and systems by the end of the third quarter of 2017. Full implementation will be completed by the end of 2017. The Company is still evaluating the method of adoption of the standard, which will occur in the first quarter of 2018. In July 2015, the FASB issued new guidance for the measurement of inventories. Inventories within the scope of the revised guidance should be measured at the lower of cost or net realizable value. The previous guidance dictated that inventory should be measured at the lower of cost or market, with market being either replacement cost, net realizable value or net realizable value less an approximation of normal profit margin. Net realizable value is the estimated selling prices in the ordinary course of business, less reasonably predictable costs of completion, disposal and transportation. Subsequent measurement is unchanged for inventories measured using LIFO or the retail inventory method. The new guidance is effective for fiscal years beginning after December 31, 2016, including the interim periods within those fiscal years. The amendments should be applied prospectively, with early adoption permitted. The Company will adopt the new guidance in the first quarter of 2017, and the adoption of this guidance is not expected to have a material impact on the consolidated financial statements. In January 2016, the FASB issued amended guidance associated with accounting for equity investments measured at fair value. The amended guidance requires all equity investments to be measured at fair value with changes in the fair value recognized through net income (other than those accounted for under equity method of accounting or those that result in consolidation of the investee). The amended guidance also requires an entity to present separately in other comprehensive income the portion of the total change in the fair value of a liability resulting from a change in the instrument-specific credit risk when the entity has elected to measure the liability at fair value in accordance with the fair value option for financial instruments. In addition, the amendments in this update eliminate the requirement to disclose the fair value of financial instruments measured at amortized cost for entities that are not public business entities and the requirement to disclose the method(s) and significant assumptions used to estimate the fair value that is required to be disclosed for financial instruments measured at amortized cost on the balance sheet for public business entities. The amended guidance is effective for fiscal years beginning after December 31, 2017, including the interim periods within those fiscal years. The amendments should be applied by means of a cumulative-effect adjustment to the balance sheet as of the beginning of the fiscal year of adoption. The amendments related to equity securities without readily determinable fair values (including disclosure requirements) should be applied prospectively to equity investments that exist as of the date of adoption of the update. Early adoption is permitted under limited, specific circumstances. The Company is still assessing the impact of this amended guidance. In February 2016, the FASB issued a revised standard on lease accounting. Lessees will need to recognize virtually all of their leases on the balance sheet, by recording a right-of-use asset and lease liability. The revised standard requires additional analysis of the components of a transaction to determine if a right-to-use asset is embedded in the transaction

Subsequent Events (Notes)

Subsequent Events (Notes)	12 Months Ended
	Dec. 31, 2016
Subsequent Event [Abstract]
Subsequent Events [Text Block]	SUBSEQUENT EVENTS On February 15, 2017, Bonnell Aluminum acquired 100% of the stock of Futura Industries Corporation (“Futura”) on a net debt-free basis for approximately $92 million pursuant to a Stock Purchase Agreement, dated as of February 1, 2017. The acquisition, which was funded using Tredegar’s existing revolving credit facility, will be treated as an asset purchase for U.S. federal income tax purposes. Futura, headquartered in Clearfield, Utah, with a national sales presence and particular strength in the western U.S., designs and manufactures a wide range of extruded aluminum products for a number of industries and end markets, including branded flooring trims and TSLOTS TM , as well as OEM (original equipment manufacturer) components for truck grills, solar panels, fitness equipment and other applications. As a result of this transaction, Futura is now a wholly-owned subsidiary of Tredegar and will operate as a division of Aluminum Extrusions, and its results of operations will be included in Tredegar’s consolidated financial statements from the date of acquisition.

Acquisitions

Acquisitions	12 Months Ended
	Dec. 31, 2016
Business Combinations [Abstract]
Acquisitions	On February 15, 2017, Bonnell Aluminum acquired 100% of the stock of Futura Industries Corporation (“Futura”) on a net debt-free basis for approximately $92 million pursuant to a Stock Purchase Agreement, dated as of February 1, 2017. The acquisition, which was funded using Tredegar’s existing revolving credit facility, will be treated as an asset purchase for U.S. federal income tax purposes. Futura, headquartered in Clearfield, Utah, with a national sales presence and particular strength in the western U.S., designs and manufactures a wide range of extruded aluminum products for a number of industries and end markets, including branded flooring trims and TSLOTS TM , as well as OEM (original equipment manufacturer) components for truck grills, solar panels, fitness equipment and other applications. As a result of this transaction, Futura is now a wholly-owned subsidiary of Tredegar and will operate as a division of Aluminum Extrusions, and its results of operations will be included in Tredegar’s consolidated financial statements from the date of acquisition.

Discontinued Operations

Discontinued Operations	12 Months Ended
	Dec. 31, 2016
Discontinued Operations and Disposal Groups [Abstract]
Discontinued Operations	DISCONTINUED OPERATIONS On February 12, 2008, the Company sold its aluminum extrusions business in Canada for $25.0 million . In 2014, accruals for indemnifications under the purchase agreement related to environmental matters were adjusted, resulting in income from discontinued operations of $0.9 million ( $0.9 million net of tax). The historical results for this business, including any subsequent adjustments for contractual indemnifications, have been reflected as discontinued operations; however, cash flows for discontinued operations have not been separately disclosed in the consolidated statements of cash flows.

Investments

Investments	12 Months Ended
	Dec. 31, 2016
Equity Method Investments and Joint Ventures [Abstract]
Investments	INVESTMENTS In August 2007 and December 2008, Tredegar made an aggregate investment of $7.5 million in kaleo, Inc. (“kaléo”), a privately held specialty pharmaceutical company dedicated to building innovative solutions for serious and life-threatening medical conditions. The mission of kaléo is to provide products that empower patients to confidently take control of their medical conditions. Tredegar’s ownership interest on a fully diluted basis was approximately 19% at December 31, 2016 , and the investment is accounted for under the fair value method. At the time of the initial investment, the Company elected the fair value option over the equity method of accounting since its investment objectives were similar to those of venture capitalists, which typically do not have controlling financial interests. In 2009, kaléo licensed exclusive rights to sanofi-aventis U.S. LLC (“Sanofi”) to commercialize an epinephrine auto-injector in the U.S. and Canada. Sanofi began manufacturing and distributing the epinephrine auto-injector, under the names Auvi-Q ® in the U.S. and Allerject ® in Canada, in 2013. On October 28, 2015, Sanofi announced a voluntary recall of all Auvi-Q and Allerject epinephrine injectors that were on the market. In January 2017, kaléo announced that it would recommence sales of Auvi-Q in the U.S. starting in February 2017. At December 31, 2016 and 2015 , the estimated fair value of the Company’s investment (also the carrying value, which is included in “Other assets and deferred charges” in the consolidated balance sheets) was $20.2 million and $18.6 million , respectively. The Company recognized an unrealized gain on its investment in kaléo of $1.6 million ( $1.2 million after taxes) in 2016 . The change in the estimated fair value of the Company’s holding in kaléo in 2016 was primarily related to favorable adjustments in the fair value for the passage of time as anticipated cash flows associated with achieving product development and commercialization milestones are discounted at 45% for their high degree of risk. The Company recognized a net unrealized loss of $20.5 million ( $15.7 million after taxes) in 2015 that primarily related to the adverse impact of the product recall noted above. The Company recognized an unrealized gain of $2.0 million ( $1.0 million after taxes) in 2014 that primarily related to favorable adjustments in the fair value for the passage of time as anticipated cash flows associated with achieving product development and commercialization milestones were discounted at 45% for their high degree of risk and the impact of reducing the weighted average cost of capital used to discount cash flow projections from 55% after kaléo commercialized a second product, partially offset by unfavorable adjustments in the fair value due to a reassessment of the amount and timing of estimated cash flows associated with kaléo’s commercialized products. Unrealized gains (losses) associated with this investment are included in “Other income (expense), net” in the consolidated statements of income and separately stated in the segment operating profit table in Note 5 of the Notes to Financial Statements. Subsequent to its most recent investment (December 15, 2008), and until the next round of financing, the Company believes fair value estimates are based upon Level 3 inputs since there is no secondary market for its ownership interest. Accordingly, until the next round of financing or any other significant financial transaction, value estimates will primarily be based on assumptions relating to the reintroduction of the Auvi-Q product, meeting product development and commercialization milestones, cash flow projections (projections of development and commercialization milestone payments, sales, costs, expenses, capital expenditures and working capital investment) and discounting of these factors for their high degree of risk. If kaléo does not meet its development and commercialization milestones or there are indications that the amount or timing of its projected cash flows or related risks are unfavorable versus the most recent valuation, or a new round of financing or other significant financial transaction indicates a lower enterprise value, then the Company’s estimate of the fair value of its ownership interest in kaléo is likely to decline. Adjustments to the estimated fair value of this investment will be made in the period upon which such changes can be quantified. In addition to the impact on valuation of the possible changes in assumptions, Level 3 inputs and projections from changes in business conditions, the fair market valuation of Tredegar’s interest in kaléo is sensitive to changes in the weighted average cost of capital used to discount cash flow projections for the high degree of risk associated with meeting development and commercialization milestones as anticipated. The weighted average cost of capital used in the fair market valuation of the Company’s interest in kaléo was 45% at both December 31, 2016 and 2015 . At December 31, 2016 , the effect of a 500 basis point decrease in the weighted average cost of capital assumption would have further increased the fair value of Tredegar’s interest in kaléo by approximately $6 million , and a 500 basis point increase in the weighted average cost of capital assumption would have decreased the fair value of the Company’s interest by approximately $5 million . Had the Company not elected to account for its investment under the fair value method, it would have been required to use the equity method of accounting. The condensed balance sheets for kaléo at December 31, 2016 and 2015 and related condensed statements of operations for the last three years ended December 31, 2016 , as reported to the Company by kaléo, are provided below: December 31, December 31, (In Thousands) 2016 2015 2016 2015 Assets: Liabilities & Equity: Cash & cash equivalents $ 102,329 $ 91,844 Restricted cash 31 8,182 Current liabilities $ 50,134 $ 10,261 Other current assets 15,391 9,070 Long-term debt, net 143,380 142,696 Property & equipment 13,011 8,453 Other noncurrent liabilities 822 552 Other long-term assets 472 2,903 Equity (63,102 ) (33,057 ) Total assets $ 131,234 $ 120,452 Total liabilities & equity $ 131,234 $ 120,452 2016 2015 2014 Revenues & Expenses: Revenues $ 56,188 $ 35,731 $ 21,156 Cost of goods sold (15,428 ) (14,147 ) (3,801 ) Expenses and other, net (a) (71,548 ) (63,042 ) (48,447 ) Income tax (expense) benefit (35 ) (481 ) 8,100 Net income (loss) $ (30,823 ) $ (41,939 ) $ (22,992 ) (a) “Expenses and other, net” includes selling, general and administrative expense, research and development expense, gain on contract termination, interest expense and other income (expense), net. Excluding the gain on contract termination, “Expenses and other, net” would have been a net deduction of $89.6 million in 2016. The audited financial statements and accompanying footnotes of kaléo as of December 31, 2016 and 2015 and for the years ended December 31, 2016 , 2015 and 2014 have been included as an exhibit to the Company’s Annual Report on Form 10-K for the year ended December 31, 2016 filed with the Securities and Exchange Commission. On April 2, 2007, Tredegar invested $10.0 million in Harbinger Capital Partners Special Situations Fund, L.P. (the “Harbinger Fund”), a private investment fund that is subject to limitations on withdrawal. There is no secondary market for interests in the fund. The Company’s investment in the Harbinger Fund, which represents less than 1% of its total partnership capital, is accounted for under the cost method. Unrealized losses on the Company’s investment in the Harbinger Fund (included in “Other income (expense), net” in the consolidated statements of income) were $0.8 million ( $0.4 million after taxes) in 2014 (none in 2015 and 2016), as a result of a reduction in the estimated fair value of the investment that is not expected to be temporary. The December 31, 2016 and 2015 carrying values in the consolidated balance sheets (included in “Other assets and deferred charges”) were $1.7 million and $1.7 million , respectively. The carrying value at December 31, 2016 reflected Tredegar’s cost basis in its investment in Harbinger, net of total withdrawal proceeds received and unrealized losses. Withdrawal proceeds were $0.1 million in 2015 and $0.2 million in 2014 ( none in 2016 ). The timing and amount of future installments of withdrawal proceeds was not known as of December 31, 2016 . There were no realized gains or losses associated with the investment in the Harbinger Fund in 2016 , 2015 and 2014 . Gains on the Company’s investment in the Harbinger Fund, if any, will be recognized when the amounts expected to be collected from withdrawal from the investment are known, which will likely be when cash in excess of the remaining carrying value is received. Losses will be recognized if management believes it is probable that future withdrawal proceeds will not exceed the remaining carrying value. Tredegar has investment property in Alleghany and Bath County, Virginia. In 2016, the Company recorded an unrealized loss on this investment property of $1.0 million ( $0.7 million after taxes) as a reduction in the estimated fair value of our investment that is not expected to be temporary. The Company realized a gain (included in “Other income (expense), net” in the consolidated statements of income) of $1.2 million ( $0.8 million after taxes) on a sale of a portion of this investment property in 2014. The Company’s carrying value in this investment property (included in “Other assets and deferred charges” on the consolidated balance sheets) was $1.6 million at December 31, 2016 and $2.6 million at December 31, 2015 .

Business Segments

Business Segments	12 Months Ended
	Dec. 31, 2016
Segment Reporting [Abstract]
Business Segments	BUSINESS SEGMENTS Tredegar has historically reported two business segments: Film Products and Aluminum Extrusions. In the third quarter of 2015, the Company divided Film Products into two separate reportable segments: PE Films and Flexible Packaging Films. PE Films is comprised of the following operating segments: personal care materials, surface protection films, and LED lighting products. Flexible Packaging Films is comprised of the Company’s polyester films business, Terphane Holdings LLC (“Terphane”), which was acquired by Film Products in October 2011. Therefore, the Company's business segments are now PE Films, Flexible Packaging Films and Aluminum Extrusions. All historical results for PE Films and Flexible Packaging Films have been separately presented to conform with the new presentation of segments. Information by business segment and geographic area for the last three years is provided below. There were 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 (Tredegar’s President and Chief Executive Officer) for purposes of assessing performance. PE Films’ net sales to The Procter & Gamble Company (“P&G”) totaled $129.1 million in 2016 , $163.9 million in 2015 and $220.8 million in 2014 . These amounts include plastic film sold to others that convert the film into materials used with products manufactured by P&G. Net Sales (In Thousands) 2016 2015 2014 PE Films $ 331,146 $ 385,550 $ 464,339 Flexible Packaging Films 108,028 105,332 114,348 Aluminum Extrusions 360,098 375,457 344,346 Total net sales 799,272 866,339 923,033 Add back freight 29,069 29,838 28,793 Sales as shown in consolidated statements of income $ 828,341 $ 896,177 $ 951,826 Operating Profit (In Thousands) 2016 2015 2014 PE Films: Ongoing operations $ 26,312 $ 48,275 $ 60,971 Plant shutdowns, asset impairments, restructurings and other (a) (4,602 ) (4,180 ) (12,236 ) Flexible Packaging Films: Ongoing operations 1,774 5,453 (2,917 ) Plant shutdowns, asset impairments, restructurings and other (a) (214 ) (185 ) (591 ) Goodwill impairment charge — (44,465 ) — Aluminum Extrusions: Ongoing operations 37,794 30,432 25,664 Plant shutdowns, asset impairments, restructurings and other (a) (741 ) (708 ) (976 ) Total 60,323 34,622 69,915 Interest income 261 294 588 Interest expense 3,806 3,502 2,713 Gain (loss) on investment accounted for under the fair value method (a) 1,600 (20,500 ) 2,000 Gain on sale of investment property (a) — — 1,208 Unrealized loss on investment property (a) 1,032 — — Stock option-based compensation expense 56 483 1,272 Corporate expenses, net (a) 29,607 33,638 24,310 Income (loss) from continuing operations before income taxes 27,683 (23,207 ) 45,416 Income taxes (a) 3,217 8,928 9,387 Income (loss) from continuing operations 24,466 (32,135 ) 36,029 Income (loss) from discontinued operations (a) — — 850 Net income (loss) $ 24,466 $ (32,135 ) $ 36,879 Identifiable Assets (In Thousands) 2016 2015 PE Films $ 278,558 $ 270,236 Flexible Packaging Films 156,836 146,253 Aluminum Extrusions 147,639 136,935 Subtotal 583,033 553,424 General corporate (b) 38,618 25,680 Cash and cash equivalents (d) 29,511 44,156 Total $ 651,162 $ 623,260 Depreciation and Amortization Capital Expenditures (In Thousands) 2016 2015 2014 2016 2015 2014 PE Films $ 13,653 $ 15,480 $ 21,399 $ 25,759 $ 21,218 $ 17,000 Flexible Packaging Films 9,505 9,697 9,331 3,391 3,489 21,806 Aluminum Extrusions 9,173 9,698 9,974 15,918 8,124 6,092 Subtotal 32,331 34,875 40,704 45,068 32,831 44,898 General corporate 141 107 114 389 — — Total $ 32,472 $ 34,982 $ 40,818 $ 45,457 $ 32,831 $ 44,898 See footnotes on page 68 . Net Sales by Geographic Area (d) (In Thousands) 2016 2015 2014 United States $ 475,734 $ 528,881 $ 542,395 Exports from the United States to: Asia 73,220 75,383 72,597 Canada 45,683 45,290 47,391 Europe 7,348 9,809 10,874 Latin America 5,561 3,464 3,116 Operations outside the United States: Brazil 90,571 89,829 97,954 The Netherlands 54,352 53,211 74,329 Hungary 24,207 32,612 39,457 China 14,390 18,919 26,109 India 8,206 8,941 8,811 Total (c) $ 799,272 $ 866,339 $ 923,033 Identifiable Assets by Geographic Area (d) Property, Plant & Equipment, Net by Geographic Area (d) (In Thousands) 2016 2015 2016 2015 United States (b) $ 367,406 $ 351,115 $ 118,661 $ 104,380 Operations outside the United States: Brazil 139,163 126,478 91,553 78,845 China 29,751 34,409 23,759 27,563 Hungary 20,610 14,798 15,117 8,135 The Netherlands 19,484 19,372 5,784 6,224 India 6,619 7,252 4,670 5,234 General corporate (b) 38,618 25,680 1,181 934 Cash and cash equivalents (d) 29,511 44,156 n/a n/a Total $ 651,162 $ 623,260 $ 260,725 $ 231,315 Net Sales by Product Group (In Thousands) 2016 2015 2014 PE Films: Personal care materials $ 238,213 $ 287,768 $ 367,451 Surface protection films 84,013 90,197 90,129 LED lighting products & other films 8,920 7,585 6,759 Subtotal 331,146 385,550 464,339 Flexible Packaging Films 108,028 105,332 114,348 Aluminum Extrusions: Nonresidential building & construction 212,863 221,363 200,707 Consumer durables 39,293 41,835 44,897 Automotive 34,700 30,250 22,272 Machinery & equipment 20,872 18,102 26,907 Distribution 20,506 18,659 15,318 Residential building & construction 20,252 22,737 21,470 Electrical 11,612 22,511 12,775 Subtotal 360,098 375,457 344,346 Total $ 799,272 $ 866,339 $ 923,033 See footnotes on page 68 and a reconciliation of net sales to sales as shown in the Consolidated Statements of Income on page 65. (a) See Notes 1, 3, 4 and 18 for more information on losses associated with plant shutdowns, asset impairments and restructurings, unusual items, gains or losses from sale of assets, gains or losses on an investment accounted for under the fair value method and other items. (b) The balance sheets include the funded status of each of the Company’s defined benefit pension and other postretirement plans. The funded status of the Company’s defined benefit pension plan was a net liability of $88.6 million and $93.2 million as of December 31, 2016 and 2015 , respectively. See Note 14 for more information on the Company’s pension and other postretirement plans. (c) The difference between total consolidated sales as reported in the consolidated statements of income and segment, geographic and product group net sales reported in this note is freight of $29.1 million in 2016 , $29.8 million in 2015 and $28.8 million in 2014 . (d) Information on exports and foreign operations are provided on the previous page. Cash and cash equivalents includes funds held in locations outside the U.S. of $23.8 million and $27.7 million at December 31, 2016 and 2015 , respectively. Export sales relate almost entirely 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.

Accounts And Other Receivables

Accounts And Other Receivables	12 Months Ended
	Dec. 31, 2016
Accounts and Notes Receivable, Net [Abstract]
Accounts And Other Receivables	ACCOUNTS AND OTHER RECEIVABLES Accounts and other receivables consist of the following: (In Thousands) 2016 2015 Trade, less allowance for doubtful accounts and sales returns of $3,102 in 2016 and $3,746 in 2015 $ 91,109 $ 90,028 Other 6,279 4,189 Total $ 97,388 $ 94,217 A reconciliation of the beginning and ending balances of the allowance for doubtful accounts and sales returns for the three years ended December 31, 2016 is as follows: (In Thousands) 2016 2015 2014 Balance, beginning of year $ 3,746 $ 2,610 $ 3,327 Charges to expense 1,410 3,387 1,344 Recoveries (32 ) (7 ) (1,654 ) Write-offs and settlements (2,167 ) (1,970 ) (153 ) Foreign exchange and other 145 (274 ) (254 ) Balance, end of year $ 3,102 $ 3,746 $ 2,610

Inventories

Inventories	12 Months Ended
	Dec. 31, 2016
Inventory, Net [Abstract]
Inventories	INVENTORIES Inventories consist of the following: (In Thousands) 2016 2015 Finished goods $ 16,215 $ 13,935 Work-in-process 8,590 9,249 Raw materials 23,733 22,149 Stores, supplies and other 17,531 19,992 Total $ 66,069 $ 65,325 Inventories stated on the LIFO basis amounted to $16.4 million at December 31, 2016 and $13.5 million at December 31, 2015 , which were below replacement costs by $15.3 million at December 31, 2016 and $13.4 million at December 31, 2015 . During 2016 certain PE Films inventories accounted for on a LIFO basis increased, which resulted in cost of goods sold being stated at above replacement costs by $0.9 million and, during 2015 and 2014 , certain PE Films inventories accounted for on a LIFO basis declined, which resulted in cost of goods sold being stated at below replacement costs by $0.4 million and $1.0 million , respectively.

Goodwill And Other Intangible A

Goodwill And Other Intangible Assets	12 Months Ended
	Dec. 31, 2016
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill And Other Intangible Assets	GOODWILL AND OTHER INTANGIBLE ASSETS The components of goodwill and other intangibles at December 31, 2016 and 2015 , and related amortization periods for continuing operations are as follows: (In Thousands) 2016 2015 Amortization Periods Goodwill $ 117,822 $ 117,839 Not amortized Other identifiable intangibles (a): Customer relationships (cost basis of $26,021 in 2016 and $23,766 in 2015) 14,844 15,620 10-12 years Proprietary technology (cost basis of $17,366 in 2016 and $16,738 in 2015) 7,582 9,037 Not more than 15 years Trade names 11,175 10,576 Indefinite life Total carrying value of other intangibles 33,601 35,233 Total carrying value of goodwill and other intangibles $ 151,423 $ 153,072 (a) Other identifiable intangibles also includes non-compete agreements , which have been fully amortized. These identifiable intangible assets, which have a cost basis of $4.2 million , were previously amortized over 2 years. A reconciliation of the beginning and ending balance of goodwill for each of the two years in the period ended December 31, 2016 is as follows: (In Thousands) PE Films Flexible Packaging Films Aluminum Extrusions (1) Total Net carrying value of goodwill at January 1, 2015 $ 104,160 $ 51,831 $ 13,696 $ 169,687 Goodwill impairment charge — (44,465 ) — (44,465 ) Increase (decrease) due to foreign currency translation (17 ) (7,366 ) — (7,383 ) Net carrying value of goodwill at December 31, 2015 104,143 — 13,696 117,839 Increase (decrease) due to foreign currency translation (17 ) — — (17 ) Net carrying value of goodwill at December 31, 2016 $ 104,126 $ — $ 13,696 $ 117,822 (1) Goodwill balance is net of accumulated impairment losses of $30.6 million . The Company recorded a goodwill impairment charge of $44.5 million ( $44.5 million after taxes) for goodwill associated with Flexible Packaging Films in 2015. This impairment charge represented the entire amount of goodwill associated with the Flexible Packaging Films segment. The operations of Flexible Packaging Films were adversely impacted by competitive pressures that were primarily related to unfavorable economic conditions in its primary market of Brazil and excess global capacity in the industry. The Company’s assessment of future prospects and timing of a recovery under these conditions indicated that its enterprise value was less than $120 million (Flexible Packaging Films’ net assets excluding goodwill), the minimum value needed to have avoided a full write-off of its goodwill. Amortization expense for continuing operations over the next five years is expected to be as follows: Year Amount (In Thousands) 2017 $ 4,007 2018 3,873 2019 3,473 2020 3,473 2021 3,360

Financial Instruments

Financial Instruments	12 Months Ended
	Dec. 31, 2016
Summary of Derivative Instruments [Abstract]
Financial Instruments	FINANCIAL INSTRUMENTS Tredegar uses derivative financial instruments for the purpose of hedging margin exposure from fixed-price forward sales contracts in Aluminum Extrusions and currency exchange rate exposures that exist as part of ongoing business operations (primarily in PE 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 $8.0 million ( 9.6 million pounds of aluminum) at December 31, 2016 and $16.6 million ( 18.9 million pounds of aluminum) at December 31, 2015 . The table below summarizes the location and gross amounts of aluminum derivative contract fair values (Level 2) in the consolidated balance sheets as of December 31, 2016 and 2015 : December 31, 2016 December 31, 2015 (In Thousands) Balance Sheet Account Fair Value Balance Sheet Account Fair Value Derivatives Designated as Hedging Instruments Asset derivatives: Aluminum futures contracts Prepaid expenses and other $ 308 Accrued expenses $ 44 Liability derivatives: Aluminum futures contracts Prepaid expenses and other $ (37 ) Accrued expenses $ (1,797 ) Derivatives Not Designated as Hedging Instruments Asset derivatives: Aluminum futures contracts Prepaid expenses and other $ — Accrued expenses $ — Liability derivatives: Aluminum futures contracts Prepaid expenses and other $ — Accrued expenses $ — Net asset (liability) $ 271 $ (1,753 ) 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 offsetting asset and liability positions included in the table above are associated with the unwinding of aluminum futures contracts due to such cancellations. Tredegar used future fixed Euro-denominated contractual payments for equipment purchased as part of its multi-year capacity expansion project at the Flexible Packaging Films manufacturing facility in Cabo de Santo Agostinho, Brazil. The Company used fixed rate Euro forward contracts with various settlement dates through February 2014 to hedge exchange rate exposure on these obligations. The Company did not have any fixed rate forward contracts with outstanding notional amounts as of December 31, 2016 and 2015 . Tredegar receives Euro-based royalty payments relating to its operations in Europe. From time to time Tredegar uses zero-cost collar currency options to hedge a portion of its exposure to changes in cash flows due to variability in U.S. Dollar and Euro exchange rates. There were no outstanding notional amounts on these collars at December 31, 2016 and 2015 as there were no derivatives outstanding related to the hedging of royalty payments with currency options. The counterparties to the Company’s forward purchase commitments are major aluminum brokers and suppliers, and the counterparties to 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 Tredegar’s foreign currency futures and zero-cost collar 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 years ended December 31, 2016 , 2015 , and 2014 is summarized in the tables below: (In Thousands) Cash Flow Derivative Hedges Aluminum Futures Contracts Foreign Currency Forwards and Options Years Ended December 31, 2016 2015 2014 2016 2015 2014 Amount of pre-tax gain (loss) recognized in other comprehensive income $ 394 $ (5,055 ) $ 542 $ — $ — $ (120 ) Location of gain (loss) reclassified from accumulated other comprehensive income into net income (effective portion) Cost of sales Cost of sales Cost of sales Cost of Cost of Cost of Amount of pre-tax gain (loss) reclassified from accumulated other comprehensive income to net income (effective portion) $ (1,630 ) $ (3,538 ) $ 631 $ 62 $ 62 $ 16 Gains and losses on the ineffective portion of derivative instruments or derivative instruments that were not designated as hedging instruments were not material in 2016 , 2015 and 2014 . For the years ended December 31, 2016 , 2015 and 2014 , unrealized net losses from hedges that were discontinued were not material. As of December 31, 2016 , the Company expected $0.2 million of unrealized after-tax gains on derivative instruments reported in accumulated other comprehensive income to be reclassified to earnings within the next 12 months.

Accrued Expenses

Accrued Expenses	12 Months Ended
	Dec. 31, 2016
Accrued Liabilities [Abstract]
Accrued Expenses	ACCRUED EXPENSES Accrued expenses consist of the following: (In Thousands) 2016 2015 Vacation $ 8,254 $ 7,155 Incentive compensation 5,530 3,883 Payrolls, related taxes and medical and other benefits 5,519 4,762 Workers’ compensation and disabilities 3,732 3,036 Accrued utilities 2,126 2,048 Environmental liabilities (current) 2,100 1,713 Accrued severance 1,976 1,908 Accrued freight 1,612 1,111 Customer rebates 842 2,032 Derivative contract liability — 1,753 Other 6,956 4,252 Total $ 38,647 $ 33,653 A reconciliation of the beginning and ending balances of accrued expenses associated with asset impairments and costs associated with exit and disposal activities for each of the three years in the period ended December 31, 2016 is as follows: (In Thousands) Severance Asset Impairments Other (a) Total Balance at January 1, 2014 $ 331 $ — $ 356 $ 687 For the year ended December 31, 2014: Charges 2,668 227 131 3,026 Cash spend (2,753 ) — (286 ) (3,039 ) Charges against assets — (227 ) — (227 ) Balance at December 31, 2014 246 — 201 447 For the year ended December 31, 2015: Charges 2,568 403 879 3,850 Cash spend (1,352 ) — (675 ) (2,027 ) Charges against assets — (403 ) — (403 ) Balance at December 31, 2015 1,462 — 405 1,867 For the year ended December 31, 2016: Charges 1,535 603 546 2,684 Cash spend (1,143 ) — (397 ) (1,540 ) Charges against assets — (603 ) — (603 ) Balance at December 31, 2016 $ 1,854 $ — $ 554 $ 2,408 (a) Other includes other shutdown-related costs associated with the consolidation of domestic PE Films manufacturing facilities and the shutdown of the Company’s aluminum extrusions manufacturing facility in Kentland, Indiana. See Note 18 for more information on plant shutdowns, asset impairments and restructurings of continuing operations.

Debt And Credit Agreements

Debt And Credit Agreements	12 Months Ended
	Dec. 31, 2016
Debt Disclosure [Abstract]
Debt And Credit Agreements	DEBT AND CREDIT AGREEMENTS On March 1, 2016, Tredegar entered into a $400 million five -year, secured revolving credit facility (“Credit Agreement”), with an option to increase that amount by $50 million . The Credit Agreement replaced the Company’s previous $350 million five-year, unsecured revolving credit facility that was due to expire on April 17, 2017. In connection with the refinancing, the Company borrowed $107 million under the Credit Agreement, which was used, together with available cash on hand, to repay all indebtedness under the previous revolving credit facility. 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 250 45 > 3.0x but <= 3.5x 225 40 > 2.0x but <= 3.0x 200 35 > 1.0x but <= 2.0x 175 30 <= 1.0x 150 25 At December 31, 2016 , the interest cost on debt borrowed under the Credit Agreement was priced at one-month LIBOR plus the applicable credit spread of 175 basis points. The most restrictive covenants in the Credit Agreement include: • Maximum indebtedness-to-adjusted EBITDA (“Leverage Ratio:) of 4.00 x; • Minimum adjusted EBIT-to-interest expense of 2.50 x; and • Maximum aggregate distributions to shareholders over the term of the Credit Agreement of $100,000 plus, beginning with the fiscal quarter ended March 31, 2016, 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 million and (ii) 50% of consolidated net income for the most recent fiscal quarter, and, at a Leverage Ratio of equal to or greater than 3.50 x, the prevention of such payments for the succeeding quarter unless the fixed charge coverage ratio is equal to or greater than 1.20 x. 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. At December 31, 2016 , based upon the most restrictive covenants within the Credit Agreement, available credit under the Credit Agreement was approximately $185.0 million . Total debt due and outstanding at December 31, 2016 is summarized below: Debt Due and Outstanding at December 31, 2016 (In Thousands) Year Due Credit Agreement Other Total Debt Due 2017 $ — $ — $ — 2018 — — — 2019 — — — 2020 — — — 2021 95,000 — 95,000 Total $ 95,000 $ — $ 95,000 Tredegar believes that it was in compliance with all of its debt covenants as of December 31, 2016 . Noncompliance with any of the debt covenants may have a material adverse effect on financial condition or liquidity in the event such noncompliance cannot be cured or should the Company be unable to obtain a waiver from the lenders. Renegotiation of the covenant through an amendment to the Credit Agreement may effectively cure the noncompliance, but may have an effect on financial condition or liquidity depending upon how the covenant is renegotiated.

Shareholder Rights Agreement

Shareholder Rights Agreement	12 Months Ended
	Dec. 31, 2016
Warrants and Rights Note Disclosure [Abstract]
Shareholder Rights Agreement	SHAREHOLDER RIGHTS AGREEMENT Pursuant to the Second Amended and Restated Rights Agreement (the “Rights Agreement”), dated as of November 18, 2013, with Computershare Trust Company, N.A., as Rights Agent, one purchase right (a “Right”) was attached to each outstanding share of Tredegar’s common stock. Each Right entitled the registered holder to purchase from Tredegar one one-hundredth of a share of Tredegar’s Series A Participating Cumulative Preferred Stock at an exercise price of $150 , subject to adjustment (the “Purchase Price”). Unless otherwise noted in the Rights Agreement, the Rights would have become exercisable, if not earlier redeemed, only if a person or group (i) acquires beneficial ownership of 20% or more of the outstanding shares of the Company’s common stock or (ii) commences, or publicly discloses an intention to commence, a tender offer or exchange offer that would result in beneficial ownership by a person or group of 20% or more of the outstanding shares of the Company’s common stock. On February 19, 2014, Tredegar’s Board of Directors authorized the termination of the Rights Agreement and the redemption of all of the outstanding Rights, at a redemption price of $.01 per Right to be paid in cash to shareholders of record as of the close of business on March 3, 2014, with the payment date of such redemption price to be on March 7, 2014. The corresponding redemption payment of $0.3 million was made in 2014.

Stock Option And Stock Award Pl

Stock Option And Stock Award Plans	12 Months Ended
	Dec. 31, 2016
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Stock Option And Stock Award Plans	STOCK OPTION AND STOCK AWARD PLANS Tredegar has one equity incentive plan under which stock options may be granted to purchase a specified number of shares of common stock at a price no lower than the fair market value on the date of grant and for a term not to exceed 10 years. Employee options granted in 2012 and thereafter ordinarily vest over a four -year period, with a quarter of the options granted vesting on each year on the grant date anniversary. The option plan also permits the grant of stock appreciation rights (“SARs”), stock, restricted stock, stock unit awards and incentive awards. Restricted stock grants ordinarily vest three years from the date of grant based upon continued employment. Stock unit awards vest upon the achievement of certain performance targets. No SARs have been granted since 1992 and none are currently outstanding. A summary of stock options outstanding at December 31, 2016 , 2015 and 2014 , and changes during those years, is presented below: Option Exercise Price/Share Number of Options Range Weighted Average Outstanding at January 1, 2014 1,046,800 $ 14.06 to $ 30.01 $ 19.06 Granted 181,476 19.84 to 22.49 22.41 Forfeited and Expired (22,581 ) 15.80 to 24.84 21.42 Exercised (41,575 ) 15.80 to 19.84 17.55 Outstanding at December 31, 2014 1,164,120 14.06 to 30.01 19.59 Granted — — to — — Forfeited and Expired (60,207 ) 17.13 to 30.01 22.30 Exercised (222,400 ) 14.06 to 19.84 16.34 Outstanding at December 31, 2015 881,513 17.13 to 30.01 20.22 Granted — — to — — Forfeited and Expired (246,394 ) 17.13 to 30.01 18.90 Exercised (134,200 ) 17.13 to 19.84 17.23 Outstanding at December 31, 2016 500,919 $ 17.13 to $ 30.01 $ 21.67 The following table summarizes additional information about stock options outstanding and exercisable at December 31, 2016 : Options Outstanding at December 31, 2016 Options Exercisable at December 31, 2016 Weighted Average Aggregate Intrinsic Value (In Thousands) Aggregate Intrinsic Value Range of Exercise Prices Shares Remaining Contractual Life (Years) Exercise Price Shares Weighted Average Exercise Price $ — to $ 15.00 — 0.0 $ — $ — — $ — $ — 15.01 to 17.50 13,000 0.1 17.13 89,310 13,000 17.13 89,310 17.51 to 20.00 226,425 2.8 19.59 999,156 226,425 19.59 999,156 20.01 to 25.00 258,694 6.5 23.63 201,274 211,542 23.74 149,553 25.01 to 30.01 2,800 6.6 30.01 — 2,100 30.01 — Total 500,919 4.6 $ 21.67 $ 1,289,740 453,067 $ 21.50 $ 1,238,019 During 2015, the Board of Directors approved the accelerated vesting of stock options and restricted stock for several Tredegar executives who left the Company in recognition of their many years of service. Compensation expense recognized in 2015 for accelerated stock option vestings ( 0.4 million shares) and accelerated restricted stock vestings ( 0.1 million shares) totaled $0.4 million and $1.0 million , respectively. The following table summarizes additional information about unvested restricted stock outstanding at December 31, 2016 , 2015 and 2014 : Unvested Restricted Stock Maximum Unvested Restricted Stock Units Issuable Upon Satisfaction of Certain Performance Criteria Number of Shares Weighted Avg. Grant Date Fair Value/Share Grant Date Fair Value (In Thousands) Number of Shares Weighted Avg. Grant Date Fair Value/Share Grant Date Fair Value (In Thousands) Outstanding at January 1, 2014 157,850 $ 22.00 $ 3,473 132,300 $ 23.81 $ 3,150 Granted 95,707 22.18 2,123 59,675 21.54 1,285 Vested (54,921 ) 20.73 (1,139 ) — — — Forfeited (10,578 ) 21.76 (230 ) (62,262 ) 19.18 (1,194 ) Outstanding at December 31, 2014 188,058 22.48 4,227 129,713 24.99 3,241 Granted 147,666 18.87 2,786 144,582 18.47 2,670 Vested (174,145 ) 20.57 (3,582 ) — — — Forfeited (29,226 ) 21.42 (626 ) (107,167 ) 20.78 (2,227 ) Outstanding at December 31, 2015 132,353 21.19 2,805 167,128 22.04 3,684 Granted 144,546 13.47 1,947 136,986 11.34 1,553 Vested (52,167 ) 21.56 (1,125 ) — — — Forfeited (17,377 ) 18.97 (330 ) (65,685 ) 20.24 (1,329 ) Outstanding at December 31, 2016 207,355 $ 15.90 $ 3,297 238,429 $ 16.39 $ 3,908 The total intrinsic value of stock options exercised was $0.2 million in 2016 , $1.0 million in 2015 and $0.1 million in 2014 . The grant-date fair value of stock option-based awards vested was $0.4 million in 2016 , $1.9 million in 2015 and $0.7 million in 2014 . As of December 31, 2016 , there was unrecognized compensation cost of $0.1 million related to stock option-based awards and $1.6 million related to non-vested restricted stock and other stock-based awards. This cost is expected to be recognized over the remaining weighted average period of 0.6 years for stock option-based awards and 1.6 years for non-vested restricted stock and other stock-based awards. Stock options exercisable totaled 453,067 at December 31, 2016 and 771,000 shares at December 31, 2015 . Stock options available for grant totaled 2,748,000 shares at December 31, 2016 .

Retirement Plans And Other Post

Retirement Plans And Other Postretirement Benefits	12 Months Ended
	Dec. 31, 2016
Compensation and Retirement Disclosure [Abstract]
Retirement Plans And Other Postretirement Benefits	RETIREMENT PLANS AND OTHER POSTRETIREMENT BENEFITS Tredegar sponsors noncontributory defined benefit (pension) plans covering certain current and former employees. The plans for salaried and hourly employees currently in effect are based on a formula using the participant’s years of service and compensation or using the participant’s years of service and a dollar amount. The plan is closed to new participants, and pay for active participants of the plan was frozen as of December 31, 2007. With the exception of plan participants at one of the Company’s U.S. manufacturing facilities, the plan no longer accrues benefits associated with crediting employees for service, thereby freezing all future benefits under the plan. In addition to providing pension benefits, the Company provides postretirement life insurance and health care benefits for certain groups of employees. Tredegar and retirees share in the cost of postretirement health care benefits, with employees hired on or before January 1, 1993, receiving a fixed subsidy to cover a portion of their health care premiums. The Company eliminated prescription drug coverage for Medicare-eligible retirees as of January 1, 2006. Consequently, Tredegar is not eligible for any federal subsidies. The following tables reconcile the changes in benefit obligations and plan assets in 2016 and 2015 , and reconcile the funded status to prepaid or accrued cost at December 31, 2016 and 2015 : Pension Benefits Other Post- Retirement Benefits (In Thousands) 2016 2015 2016 2015 Change in benefit obligation: Benefit obligation, beginning of year $ 303,852 $ 325,426 $ 7,745 $ 8,372 Service cost 231 530 38 44 Interest cost 13,323 13,217 337 325 Effect of actuarial (gains) losses related to the following: Discount rate change 9,296 (14,687 ) 210 (356 ) Retirement rate assumptions and mortality table adjustments (5,537 ) (5,456 ) (433 ) 32 Other (3,025 ) (746 ) (131 ) (332 ) Plan participant contributions — — 634 625 Benefits paid (15,014 ) (14,432 ) (964 ) (965 ) Benefit obligation, end of year $ 303,126 $ 303,852 $ 7,436 $ 7,745 Change in plan assets: Plan assets at fair value, beginning of year $ 210,642 $ 229,017 $ — $ — Actual return on plan assets 11,199 (6,311 ) — — Employer contributions 7,732 2,368 330 340 Plan participant contributions — — 634 625 Benefits paid (15,014 ) (14,432 ) (964 ) (965 ) Plan assets at fair value, end of year $ 214,559 $ 210,642 $ — $ — Funded status of the plans $ (88,567 ) $ (93,210 ) $ (7,436 ) $ (7,745 ) Amounts recognized in the consolidated balance sheets: Accrued expenses (current) $ 182 $ 210 $ 453 $ 455 Other noncurrent liabilities 88,385 93,000 6,983 7,290 Net amount recognized $ 88,567 $ 93,210 $ 7,436 $ 7,745 Assumptions used for financial reporting purposes to compute net benefit income or cost and benefit obligations for continuing operations, and the components of net periodic benefit income or cost for continuing operations, are as follows: Pension Benefits Other Post- Retirement Benefits (In Thousands, Except Percentages) 2016 2015 2014 2016 2015 2014 Weighted-average assumptions used to determine benefit obligations: Discount rate 4.29 % 4.55 % 4.17 % 4.24 % 4.49 % 4.11 % Expected long-term return on plan assets 6.50 % 7.00 % 7.50 % n/a n/a n/a Weighted-average assumptions used to determine net periodic benefit cost: Discount rate 4.55 % 4.17 % 4.99 % 4.49 % 4.11 % 4.88 % Expected long-term return on plan assets 7.00 % 7.50 % 7.75 % n/a n/a n/a Components of net periodic benefit cost: Service cost $ 231 $ 530 $ 869 $ 38 $ 44 $ 43 Interest cost 13,323 13,217 13,397 337 325 387 Expected return on plan assets (15,980 ) (17,636 ) (18,301 ) — — — Amortization of prior service costs and gains or losses 13,312 16,190 10,688 (214 ) (194 ) (190 ) Settlement/curtailment — 45 81 — — — Net periodic benefit cost $ 10,886 $ 12,346 $ 6,734 $ 161 $ 175 $ 240 Net benefit income or cost is determined using assumptions at the beginning of each year. Funded status is determined using assumptions at the end of each year. The amount of the accumulated benefit obligation is the same as the projected benefit obligation. At December 31, 2016 , the effect of a 1% change in the health care cost trend rate assumptions would not impact the post-retirement obligation. Expected benefit payments for continuing operations over the next five years and in the aggregate for 2021-2025 are as follows: (In Thousands) Pension Benefits Other Post- Retirement Benefits 2017 $ 16,165 $ 453 2018 16,568 456 2019 17,076 460 2020 17,537 462 2021 17,860 465 2022—2026 92,955 2,322 Amounts recorded in 2016 , 2015 and 2014 in accumulated other comprehensive income, before related deferred income taxes, consist of: Pension Other Post-Retirement (In Thousands) 2016 2015 2014 2016 2015 2014 Prior service cost (benefit) $ 10 $ 18 $ 87 $ — $ — $ — Net actuarial (gain) loss 145,782 153,570 166,678 (1,756 ) (1,616 ) (1,154 ) Pension expense is expected to be $10.4 million in 2017 . The amounts in accumulated other comprehensive income, before related deferred income taxes, that are expected to be recognized as components of net periodic benefit or cost during 2017 are as follows: (In Thousands) Pension Other Post- Retirement Prior service cost (benefit) $ 5 $ — Net actuarial (gain) loss 12,329 (245 ) The percentage composition of assets held by pension plans for continuing operations at December 31, 2016 , 2015 and 2014 are as follows: % Composition of Plan Assets at December 31, 2016 2015 2014 Pension plans related to continuing operations: Fixed income securities 8.0 % 12.8 % 14.5 % Large/mid-capitalization equity securities 14.7 13.8 13.7 Small-capitalization equity securities 5.3 4.0 4.3 International and emerging market equity securities 11.5 10.9 11.0 Total equity securities 31.5 28.7 29.0 Private equity and hedge funds 48.4 52.4 51.2 Other assets 12.1 6.1 5.3 Total for continuing operations 100.0 % 100.0 % 100.0 % Tredegar’s targeted allocation percentage for pension plan assets and the expected long-term rate of return on assets used to determine its benefit obligation at December 31, 2016 , are as follows: Target % Composition of Plan Assets * Expected Long-term Return % Pension plans related to continuing operations: Fixed income securities 22.0 % 3.8 % Large/mid-capitalization equity securities 14.0 8.4 Small-capitalization equity securities 5.0 9.5 International and emerging market equity securities 13.0 8.6 Total equity securities 32.0 8.7 Private equity and hedge funds 46.0 6.3 Total for continuing operations 100.0 % 6.5 % * Target percentages for the composition of plan assets represents a neutral position within the approved range of allocations for such assets. Expected long-term returns are estimated by asset class and generally are based on inflation-adjusted historical returns, volatilities, risk premiums and managed asset premiums. The portfolio of fixed income securities is structured with maturities that generally match estimated benefit payments over the next 1 - 2 years. The other assets category is primarily comprised of cash and contracts with insurance companies. The Company’s primary investment objective is to maximize total return with a strong emphasis on the preservation of capital, and it believes that over the long-term a diversified portfolio of fixed income securities, equity securities, hedge funds and private equity funds has a better risk-return profile than fixed income securities alone. The average remaining duration of benefit payments for the pension plans is about 11.4 years. The Company expects its required contributions to be approximately $5.5 million in 2017 . Estimates of the fair value of assets held by the Company’s pension plan are provided by unaffiliated third parties. Investments in private equity and hedge funds and certain fixed income securities by the Company’s pension plan are measured at NAV, which is a practical expedient for measuring fair value. These assets are therefore excluded from the fair value hierarchy for each of the years presented. At December 31, 2016 and 2015 , the pension plan assets are categorized by level within the fair value measurement hierarchy as follows: (In Thousands) Total Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Balances at December 31, 2016 Large/mid-capitalization equity securities $ 31,549 $ 31,549 $ — $ — Small-capitalization equity securities 11,389 11,389 — — International and emerging market equity securities 24,710 11,410 13,300 — Fixed income securities 17,213 4,441 12,772 — Other assets 15,853 15,853 — — Total plan assets at fair value $ 100,714 $ 74,642 $ 26,072 $ — Private equity and hedge funds 103,686 Contracts with insurance companies 10,158 Total plan assets, December 31, 2016 $ 214,558 Balances at December 31, 2015 Large/mid-capitalization equity securities $ 29,027 $ 29,027 $ — $ — Small-capitalization equity securities 8,457 8,457 — — International and emerging market equity securities 23,054 10,126 12,928 — Fixed income securities 22,968 10,626 12,342 — Other assets 2,727 2,727 — — Total plan assets at fair value $ 86,233 $ 60,963 $ 25,270 $ — Private equity and hedge funds 110,340 Contracts with insurance companies 10,207 Fixed income securities 3,862 Total plan assets, December 31, 2015 $ 210,642 Tredegar also has a non-qualified supplemental pension plan covering certain employees. Effective December 31, 2005, further participation in this plan was terminated and benefit accruals for existing participants were frozen. The plan was designed to restore all or a part of the pension benefits that would have been payable to designated participants from the principal pension plans if it were not for limitations imposed by income tax regulations. The projected benefit obligation relating to this unfunded plan was $2.2 million at December 31, 2016 and $2.3 million at December 31, 2015 . Pension expense recognized for this plan was $0.1 million in 2016 , $0.1 million in 2015 and $0.1 million in 2014 . This information has been included in the preceding pension benefit tables. Approximately 78 employees at the Company’s film products manufacturing facility in Kerkrade, The Netherlands are covered by a collective bargaining agreement that includes participation in a multi-employer pension plan. Pension expense recognized for participation in this plan, which is equal to required contributions, was $0.4 million in 2016 , $0.4 million in 2015 and $0.5 million in 2014 . This information has been excluded from the preceding pension benefit tables.

Savings Plan

Savings Plan	12 Months Ended
	Dec. 31, 2016
Savings Plan [Abstract]
Savings Plan	SAVINGS PLAN Tredegar has a savings plan that allows eligible employees to voluntarily contribute a percentage of their compensation, up to Internal Revenue Service (“IRS”) limitations. The provisions of the savings plan provided the following benefits for salaried and certain hourly employees: • The Company makes matching contributions to the savings plan of $1 for every $1 of employee contribution. The matching contribution is currently on a maximum of 5% of base pay. • The savings plan includes immediate vesting of matching contributions when made and automatic enrollment at 3% of base pay unless the employee opts out or elects a different percentage. For the period from February 1, 2014 to December 31, 2014, the Company made matching contributions to the savings plan for salaried and non-union hourly employees of $0.50 for every $1 a participant contributed, with a matching contribution on a maximum of 5% of base pay during this period. The Company also has a non-qualified plan that restores matching benefits for employees suspended from the savings plan due to certain limitations imposed by income tax regulations (“restoration plan”). Charges recognized for these plans were $3.2 million in 2016 , $3.0 million in 2015 and $1.6 million in 2014 . The Company’s liability under the restoration plan was $1.6 million at December 31, 2016 (consisting of 67,013 phantom shares of common stock) and $1.0 million at December 31, 2015 (consisting of 71,818 phantom shares of common stock) and valued at the closing market price on those dates. The Tredegar Corporation Benefits Plan Trust (the “Trust”) purchased 7,200 shares of the Company’s common stock in 1998 for $0.2 million and 46,671 shares of its common stock in 1997 for $1.0 million , as a partial hedge against the phantom shares held in the restoration plan. There have been no shares purchased since 1998 except for re-invested dividends. The cost of the shares held by the Trust is shown as a reduction to shareholders’ equity in the consolidated balance sheets.

Rental Expense And Contractual

Rental Expense And Contractual Commitments	12 Months Ended
	Dec. 31, 2016
Leases, Operating [Abstract]
Rental Expense And Contractual Commitments	RENTAL EXPENSE AND CONTRACTUAL COMMITMENTS Rental expense for continuing operations was $2.9 million in 2016 , $3.6 million in 2015 and $3.6 million in 2014 . Rental commitments under all non-cancelable leases (including $0.3 million for capital leases) for continuing operations as of December 31, 2016 , are as follows: (in thousands) 2017 $ 2,397 2018 2,200 2019 1,982 2020 1,976 2021 1,491 Remainder 1,169 Total minimum lease payments $ 11,215 Contractual obligations for plant construction and purchases of real property and equipment amounted to $12.0 million at December 31, 2016 .

Income Taxes

Income Taxes	12 Months Ended
	Dec. 31, 2016
Income Tax Disclosure [Abstract]
Income Taxes	INCOME TAXES Income from continuing operations before income taxes and income taxes are as follows: (In Thousands) 2016 2015 2014 Income from continuing operations before income taxes: Domestic $ 26,284 $ (9,116 ) $ 38,402 Foreign 1,399 (14,091 ) 7,014 Total $ 27,683 $ (23,207 ) $ 45,416 Current income taxes: Federal $ 4,302 $ 12,693 $ 14,568 State (709 ) 973 2,178 Foreign 3,255 6,064 4,102 Total 6,848 19,730 20,848 Deferred income taxes: Federal (2,505 ) (9,419 ) (9,530 ) State 1,396 (1,035 ) (417 ) Foreign (2,522 ) (348 ) (1,514 ) Total (3,631 ) (10,802 ) (11,461 ) Total income taxes $ 3,217 $ 8,928 $ 9,387 The significant differences between the U.S. federal statutory rate and the effective income tax rate for continuing operations are as follows: Percent of Income Before Income Taxes from Continuing Operations 2016 2015 2014 Federal statutory rate 35.0 35.0 35.0 State taxes, net of federal income tax benefit 2.3 0.3 2.2 Foreign rate differences 1.8 3.1 (0.1 ) Non-deductible expenses 1.4 (1.9 ) 0.9 Changes in estimates related to prior year tax provision 1.2 (2.1 ) (2.3 ) Valuation allowance for capital loss carry-forwards 1.0 1.3 (10.2 ) Tax contingency accruals and tax settlements 0.4 (3.1 ) 2.0 Tax incentive — 0.5 (0.1 ) Foreign investment write down (0.7 ) (10.9 ) — Unremitted earnings from foreign operations (0.9 ) 2.2 (3.8 ) Valuation allowance due to foreign losses (1.5 ) — (0.4 ) Research and development tax credit (2.0 ) 1.5 (0.6 ) Domestic Production Activities Deduction (2.7 ) 3.6 (1.9 ) Remitted earnings from foreign operations (23.7 ) 0.1 — Goodwill impairment — (68.1 ) — Effective income tax rate for continuing operations 11.6 (38.5 ) 20.7 Income taxes from continuing operations in 2016 included the recognition of an additional valuation allowance of $0.3 million related to expected limitations on the utilization of assumed capital losses on certain investments. In 2016, the difference between the federal statutory rate and the effective tax rate is primarily driven by the $6.4 million tax benefit from excess foreign tax credits related to the repatriation of cash from Brazil. The change in income taxes from continuing operations in 2015 in comparison to the prior year can be attributed to several factors including recording no tax benefit on either the goodwill impairment charge or the unrealized loss on the portion of the Company’s investment in shares of kaléo shares held in a foreign jurisdiction. Also, there was a $0.5 million tax benefit related to the valuation allowance associated with capital losses in 2015 compared to a $4.9 million tax benefit in 2014. In 2014 there was a $2.2 million tax benefit recorded for changes in the underlying basis of certain foreign subsidiaries versus a $0.5 million tax benefit. 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’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 levied on the operating profit of its products. These incentives produce a current tax rate of 15.25% for Terphane ( 6.25% of income tax and 9.0% social contribution on income). The current incentives will expire at the end of 2024. The benefit from the tax incentives was $0.1 million ( 0 cents per share) and $0.1 million ( 0 cent s per share) in 2015 and 2014 , respectively (none in 2016). Deferred tax liabilities and deferred tax assets at December 31, 2016 and 2015 , are as follows: (In Thousands) 2016 2015 Deferred tax liabilities: Amortization of goodwill and other intangibles $ 43,546 $ 42,900 Depreciation 24,178 22,221 Foreign currency translation gain adjustment 1,424 2,738 Derivative financial instruments 493 — Total deferred tax liabilities 69,641 67,859 Deferred tax assets: Pensions 30,733 31,972 Employee benefits 10,262 10,397 Excess capital losses and book/tax basis differences on investments 7,595 8,026 Inventory 3,622 4,636 Asset write-offs, divestitures and environmental accruals 2,515 2,022 Tax benefit on state and foreign NOL and credit carryforwards 4,921 1,624 Timing adjustment for unrecognized tax benefits on uncertain tax positions, including portion relating to interest and penalties 395 1,006 Allowance for doubtful accounts 198 406 Derivative financial instruments — 234 Other 1,568 2,224 Deferred tax assets before valuation allowance 61,809 62,547 Less: Valuation allowance 12,694 13,344 Total deferred tax assets 49,115 49,203 Net deferred tax liability $ 20,526 $ 18,656 Amounts recognized in the consolidated balance sheets: Other assets and deferred charges (noncurrent) 584 — Deferred income taxes (noncurrent) $ 21,110 $ 18,656 Net deferred tax liability $ 20,526 $ 18,656 Except as noted below, the Company believes that it is more likely than not that future taxable income will exceed future tax deductible amounts thereby resulting in the realization of deferred tax assets. The Company has estimated gross state and foreign tax credits and net operating loss carryforwards of $4.9 million and $1.6 million at December 31, 2016 and 2015 , respectively, which primarily expire at different points over the next 5 to 8 years. Valuation allowances of $1.5 million , $1.5 million and $2.8 million at December 31, 2016 , 2015 and 2014 , respectively, are recorded against the tax benefit on state and foreign tax credits and net operating loss carryforwards generated by certain foreign and domestic subsidiaries that may not be recoverable in the carryforward period. The valuation allowance for excess capital losses from investments and other related items was $11.2 million , $10.9 million and $11.4 million at December 31, 2016 , 2015 and 2014 . The current year balance increased due to changes in the relative amounts of capital gains and losses generated during the year. The amount of the deferred tax asset considered realizable, however, could be adjusted in the near term if estimates of the fair value of certain investments during the carryforward period change. Tredegar continues to evaluate opportunities to utilize capital loss carryforwards prior to their expiration at various dates in the future. As circumstances and events warrant, allowances will be reversed when it is more likely than not that future taxable income will exceed deductible amounts, thereby resulting in the realization of deferred tax assets. The valuation allowance for asset impairments in foreign jurisdictions where the Company believes it is more likely than not that the deferred tax asset will not be realized was $0.9 million at December 31, 2015 and $0.4 million at December 31, 2014 ( none in 2016). A reconciliation of the Company’s unrecognized uncertain tax positions since January 1, 2014 , is shown below: Years Ended December 31, (In Thousands) 2016 2015 2014 Balance at beginning of period $ 4,049 $ 3,255 $ 2,239 Increase (decrease) due to tax positions taken in: Current period 1,151 518 619 Prior period 43 326 397 Increase (decrease) due to settlements with taxing authorities (1,706 ) — — Reductions due to lapse of statute of limitations (222 ) (50 ) — Balance at end of period $ 3,315 $ 4,049 $ 3,255 Additional information related to unrecognized uncertain tax positions since January 1, 2014 is summarized below: Years Ended December 31, (In Thousands) 2016 2015 2014 Gross unrecognized tax benefits on uncertain tax positions (reflected in current income tax and other noncurrent liability accounts in the balance sheet) $ 3,315 $ 4,049 $ 3,255 Deferred income tax assets related to unrecognized tax benefits on uncertain tax positions (reflected in deferred income tax accounts in the balance sheet) (345 ) (858 ) (726 ) Net unrecognized tax benefits on uncertain tax positions, which would impact the effective tax rate if recognized 2,970 3,191 2,529 Interest and penalties accrued on deductions taken relating to uncertain tax positions (approximately $(262), $90 and $150 reflected in income tax expense in the income statement in 2016, 2015 and 2014, respectively, with the balance shown in current income tax and other noncurrent liability accounts in the balance sheet) 135 397 310 Related deferred income tax assets recognized on interest and penalties (49 ) (148 ) (116 ) Interest and penalties accrued on uncertain tax positions net of related deferred income tax benefits, which would impact the effective tax rate if recognized 86 249 194 Total net unrecognized tax benefits on uncertain tax positions reflected in the balance sheet, which would impact the effective tax rate if recognized $ 3,056 $ 3,440 $ 2,723 Tredegar, or one of its subsidiaries, files income tax returns in the U.S. federal jurisdiction, various states and jurisdictions outside the U.S. With few exceptions, Tredegar is no longer subject to U.S. federal, state or non-U.S. income tax examinations by tax authorities for years before 2013. The Company anticipates that it is reasonably possible that Federal and state income tax audits or statutes may settle or close within the next 12 months, which could result in the recognition of up to approximately $0.8 million of the balance of unrecognized tax positions, including any payments that may be made.

Losses Associated With Plant Sh

Losses Associated With Plant Shutdowns, Asset Impairments And Restructurings, Unusual Items, Gains From Sale Of Assets And Other Items	12 Months Ended
	Dec. 31, 2016
Restructuring and Related Activities [Abstract]
Losses Associated With Plant Shutdowns, Asset Impairments And Restructurings, Unusual Items, Gains From Sale Of Assets And Other Items	LOSSES ASSOCIATED WITH PLANT SHUTDOWNS, ASSET IMPAIRMENTS AND RESTRUCTURINGS, UNUSUAL ITEMS, GAINS FROM SALE OF ASSETS AND OTHER ITEMS Losses associated with plant shutdowns, asset impairments, restructurings and other charges in 2016 (as shown in the segment operating profit table in Note 5) totaled $6.1 million ( $3.9 million after taxes), and unless otherwise noted below, are also included in “Asset impairments and costs associated with exit and disposal activities” in the consolidated statements of income. Results in 2016 included: • Fourth quarter net loss $0.7 million ( $0.4 million after taxes), related to the explosion that occurred in the second quarter of 2016 at the aluminum extrusions manufacturing facility in Newnan, Georgia, which consists of excess production costs for which recovery from insurance is not assured of $0.6 million ( $0.4 million after taxes) (included in “Cost of goods sold” in the consolidated statements of income) and legal and consulting fees of $0.1 million ( $0.1 million after taxes) (included in “Selling, general and administrative expenses” in the consolidated statements of income), third quarter net income of $1.7 million ( $1.1 million after taxes), which includes the recognition of a gain of $1.9 million ( $1.2 million after taxes) for a portion of the insurance recoveries approved by the insurer to begin the replacement of capital equipment, offset by the impairment of equipment damaged by the explosion of $0.3 million ( $0.2 million after taxes) (net amount included in “Other income (expense), net” in the consolidated statements of income), and the reversal of an accrual for other costs related to the explosion not recoverable from insurance of $0.1 million ( $0.0 million after taxes) (included in “Selling, general and administrative expenses” in the consolidated statements of income), and second quarter net loss of $0.6 million ( $0.4 million after taxes) for other costs related to the explosion not recoverable from insurance (included in “Selling, general and administrative expenses” in the consolidated statements of income); • Quarterly charges associated with the consolidation of domestic PE Films’ manufacturing facilities, which includes categories of expenses shown in the table below (Accelerated depreciation and a portion of Other facility consolidation-related costs as noted in the table below are included in “Cost of goods sold” in the consolidated statements of income): 1st Quarter 2nd Quarter 3rd Quarter 4th Quarter 2016 ($ in Millions) BT AT BT AT BT AT BT AT BT AT Severance 0.3 0.2 0.4 0.2 0.3 0.2 0.3 0.2 1.2 0.8 Asset impairments 0.3 0.2 0.1 0.1 0.1 — — — 0.4 0.3 Accelerated depreciation 0.1 0.1 0.1 0.1 0.1 0.1 0.3 0.2 0.6 0.4 Other facility consolidation-related costs 0.5 0.3 0.8 0.5 0.6 0.4 0.2 0.1 2.0 1.3 Total 1.1 0.7 1.3 0.9 1.1 0.7 0.8 0.5 4.3 2.8 Other facility consolidation-related costs included in “Cost of goods sold” in the consolidated statements of income 0.4 0.2 0.7 0.4 0.4 0.2 0.2 0.1 1.6 1.0 Note: BT = before taxes; AT = after taxes • A fourth quarter charge of $0.6 million ( $0.4 million after taxes) associated with the acquisition of Futura Industries by Bonnell Aluminum (included in “Selling, general and administrative expenses” in the consolidated statements of income); • A fourth quarter charge of $0.5 million ( $0.3 million after taxes) related to expected future environmental costs at the aluminum extrusions manufacturing facility in Newnan, Georgia (included in “Cost of goods sold” in the consolidated statements of income); • A first quarter charge of $0.4 million ( $0.2 million after taxes) associated with a non-recurring business development project (included in “Selling, general and administrative expense” in the consolidated statements of income and “Corporate expenses, net” in the statement of net sales and operating profit by segment); • A third quarter charge of $0.3 million ( $0.2 million after taxes) for severance and other employee-related costs associated with restructurings in PE Films ( $0.1 million ) ( $0.1 million after taxes) and Corporate ( $0.2 million ) ( $0.1 million after taxes) (included in “Corporate expenses, net” in the statement of net sales and operating profit by segment); • A fourth quarter charge of $0.3 million ( $0.2 million after taxes) related to contingencies associated with the application of prior period Brazilian value-added tax credits in Flexible Packaging Films (included in “Cost of goods sold” in the consolidated statements of income); • A fourth quarter charge of $0.2 million ( $0.1 million after taxes) associated with asset impairments in PE Films; • A fourth quarter gain of $0.1 million ( $0.0 million after taxes) related to contractual indemnifications associated with the anticipated settlement of a Terphane pre-acquisition contingency (included in “Other income (expense), net” in the consolidated statements of income); and • A fourth quarter gain of $0.1 million ( $0.1 million after taxes) associated with the shutdown of the aluminum extrusions manufacturing facility in Kentland, Indiana, which includes a pretax gain of $0.2 million ( $0.1 million after taxes) related to the sale of the property, partially offset by pretax charges of $0.1 million ( $0.0 million after taxes) associated with the shutdown of this facility and a third quarter charge of $0.3 million ( $0.2 million after taxes) associated with shutdown costs. Results in 2016 include a net unrealized gain on the Company’s investment in kaléo (included in “Other income (expense), net” in the consolidated statements of income) of $1.6 million ( $1.2 million after taxes). The Company recorded an unrealized loss on its investment property in Alleghany and Bath Counties, Virginia (included in “Other income (expense), net” in the consolidated statements of income) of $1.0 million ( $0.7 million after taxes) in the fourth quarter of 2016. See Note 4 for additional information on investments. In July 2015, the Company announced its intention to consolidate its domestic production for PE Films by restructuring the operations in its manufacturing facility in Lake Zurich, Illinois. Efforts to transition domestic production from the Lake Zurich manufacturing facility will require various machinery upgrades and equipment transfers to its other manufacturing facilities. Given PE Films’ focus on maintaining product quality and customer satisfaction, the Company anticipates that these activities will be completed in the middle of 2017. Total pre-tax cash expenditures associated with restructuring the Lake Zurich manufacturing facility are expected to be approximately $17 million over the project period, and once complete, annual pre-tax cash cost savings are expected to be approximately $5-6 million. The Company expects to recognize costs associated with the exit and disposal activities of approximately $5-6 million over the project period. Exit and disposal costs include severance charges and other employee-related expenses arising from the termination of employees of approximately $3-4 million and equipment transfers and other facility consolidation-related costs of approximately $2 million . During the same period of time, operating expenses will include the acceleration of approximately $3 million of non-cash depreciation expense for certain machinery and equipment at the Lake Zurich manufacturing facility. Total expenses associated with the North American facility consolidation project were $4.3 million in the full year 2016 with $2.1 million ( $1.3 million after taxes) included in “Asset impairments and costs associated with exit and disposal activities, net of adjustments” and $2.2 million ( $1.4 million after taxes) included in “Cost of goods sold” in the consolidated statements of income. As of December 31, 2016, total expenses incurred since the project began in the third quarter of 2015 were $6.5 million ( $4.1 million after taxes). Total estimated cash expenditures of $16-17 million over the project period include the following: • Cash outlays associated with previously discussed exit and disposal expenses of approximately $5 million , including additional operating expenses of approximately $1 million associated with customer product qualifications on upgraded and transferred production lines; • Capital expenditures associated with equipment upgrades at other PE Films manufacturing facilities in the U.S. of approximately $11 million ; and • Cash incentives of approximately $1 million in connection with meeting safety and quality standards while production ramps down at the Lake Zurich manufacturing facility. Cash expenditures for the North American facility consolidation project were $10.2 million in the full year 2016, which includes capital expenditures of $8.2 million . As of December 31, 2016, total cash expenditures since the project began in the third quarter of 2015 were $13.8 million , which includes $11.1 million for capital expenditures. Losses associated with plant shutdowns, asset impairments, restructurings and other charges for continuing operations in 2015 (as shown in the segment operating profit table in Note 5) totaled $10.1 million ( $6.4 million after taxes), and unless otherwise noted below, are also included in “Asset impairments and costs associated with exit and disposal activities” in the consolidated statements of income. Results in 2015 included: • A second quarter charge of $3.9 million ( $2.5 million after taxes) for severance and other employee-related costs associated with the resignation of the Company’s former chief executive and chief financial officers (included in “Selling, general and administrative expense” in the consolidated statements of income and “Corporate expenses, net” in the statement of net sales and operating profit by segment); • A fourth quarter charge of $1.0 million ( $0.6 million after taxes) and a third quarter charge of $1.2 million ( $0.7 million ) associated with the consolidation of domestic PE Films’ manufacturing facilities, which includes severance and other employee-related costs of $0.8 million , asset impairments of $0.4 million , accelerated depreciation of $0.4 million (included in “Cost of goods sold” in the consolidated statements of income) and other facility consolidation-related expenses of $0.6 million ( $0.1 million is included in “Cost of goods sold” in the consolidated statements of income); • A fourth quarter charge of $1.1 million ( $0.7 million after taxes) in PE Films ( $0.4 million included in “Selling, general and administrative expense” in the consolidated statement of income), a third quarter charge of $0.9 million ( $0.6 million after taxes) in PE Films ( $0.9 million ), Aluminum Extrusions ( $35,000 ) and Corporate ( $26,000 , included in “Corporate expenses, net” in the statement of net sales and operating profit by segment), and a second quarter charge of $0.3 million ( $0.2 million taxes) in Flexible Packaging Films ( $0.3 million ) and PE Films ( $7,000 ) for severance and other employee-related costs, and a first quarter reversal of previously accrued severance and other employee related costs of $67,000 ( $43,000 after taxes) in Flexible Packaging Films, all associated with restructurings; • A fourth quarter charge of $1.0 million ( $0.6 million after taxes) associated with a business development project (included in “Selling, general and administrative expense” in the consolidated statement of income and “Corporate expenses, net” in the statement of net sales and operating profit by segment); • A fourth quarter charge of $31,000 ( $19,000 after taxes), a third quarter charge of $0.3 million ( $0.2 million after taxes), a second quarter charge of $18,000 ( $11,000 after taxes) and a first quarter charge of $15,000 ( $9,000 after taxes) associated with the previously shutdown aluminum extrusions manufacturing facility in Kentland, Indiana; and • A fourth quarter charge of $0.3 million ( $0.2 million after taxes) related to expected future environmental costs at the aluminum extrusions manufacturing facility in Newnan, Georgia (included in “Cost of goods sold” in the consolidated statements of income). Results in 2015 include a net unrealized loss on the Company’s investment in kaléo (included in “Other income (expense), net” in the consolidated statements of income) of $20.5 million ( $15.7 million after taxes). See Note 4 for additional information on investments. Losses associated with plant shutdowns, asset impairments, restructurings and other charges for continuing operations in 2014 (as shown in the segment operating profit table in Note 5) totaled $13.8 million ( $9.3 million after taxes), and unless otherwise noted below, are also included in “Asset impairments and costs associated with exit and disposal activities” in the consolidated statements of income. Results in 2014 included: • A second quarter charge of $10.0 million ( $6.8 million after taxes) associated with a one-time, lump sum license payment to the 3M Company after the Company settled all litigation issues associated with a patent infringement complaint (included in “Other income (expense), net” in the consolidated statements of income); • A fourth quarter charge of $0.5 million ( $0.3 million after taxes) in Flexible Packaging Films ( $0.3 million ) and PE Films ( $0.2 million ), a third quarter charge of $0.4 million ( $0.2 million after taxes) in Flexible Packaging Films ( $0.3 million ), PE Films ( $78,000 ) and Aluminum Extrusions ( $31,000 ), a second quarter charge of $0.6 million ( $0.4 million after taxes) in PE Films and a first quarter charge of $0.8 million ( $0.5 million after taxes) in PE Films for severance and other employee-related costs associated with restructurings; • A fourth quarter charge of $0.7 million ( $0.4 million after taxes), a third quarter charge of $75,000 ( $46,000 after taxes) and a second quarter charge of $0.2 million ( $0.1 million after taxes) related to expected future environmental costs at the aluminum extrusions manufacturing facility in Newnan, Georgia (included in “Cost of goods sold” in the consolidated statements of income); • A fourth quarter adjustment of previously accrued severance and other employee-related costs of $0.1 million ( $63,000 after taxes) and a third quarter charge of $37,000 ( $23,000 after taxes), a second quarter charge of $0.3 million ( $0.2 million after taxes) and a first quarter charge of $0.5 million ( $0.3 million after taxes) associated with the shutdown of the PE Films’ manufacturing facility in Red Springs, North Carolina, which includes net severance and other employee-related costs of $0.4 million and asset impairment and other shutdown-related charges of $0.3 million ; • A fourth quarter gain of $0.1 million ( $73,000 after taxes) related to the sale of a previously shutdown PE Films’ manufacturing facility in LaGrange, Georgia (included in “Other income (expense), net” in the consolidated statements of income); and • A fourth quarter charge of $11,000 ( $7,000 after taxes), a third quarter charge of $20,000 ( $12,000 after taxes) and a second quarter charge of $24,000 ( $15,000 after taxes) associated with the previously shutdown aluminum extrusions manufacturing facility in Kentland, Indiana. Results in 2014 include a net unrealized gain on the Company’s investment in kaléo (included in “Other income (expense), net” in the consolidated statements of income) of $2.0 million ( $1.0 million after taxes). An unrealized loss on the Company’s investment in the Harbinger Fund (included in “Other income (expense), net” in the consolidated statements of income and “Corporate expenses, net” in the statement of net sales and operating profit by segment) of $0.8 million ( $0.4 million after taxes) was recorded in 2014 as a result of a reduction in the fair value of the investment that is not expected to be temporary. The Company realized a gain on the sale of a portion of its investment property in Alleghany and Bath Counties, Virginia (included in “Other income (expense), net” in the consolidated statements of income) of $1.2 million ( $0.8 million after taxes) in 2014 . See Note 4 for additional information on investments. PE Films closed its manufacturing facility in Red Springs, North Carolina in June 2014. The plant, which was a leased facility, was solely dedicated to producing babycare elastic laminate films for P&G, who has consolidated its North American suppliers for this product. The Red Springs manufacturing facility employed 66 people, and total charges incurred related to the shutdown, which primarily consisted of severance and other employee-related costs, were $0.7 million in 2014. Impairment charges were recognized to write down the machinery and equipment to the lower of their carrying value or estimated fair value. The estimated fair value of machinery and equipment that was evaluated for impairment was primarily based on estimates of the proceeds that the Company would receive if and/or when assets are sold. Estimates of the remaining fair value for the related machinery and equipment were based on both Level 2 and 3 inputs as defined under GAAP.

Contingencies

Contingencies	12 Months Ended
	Dec. 31, 2016
Commitments and Contingencies Disclosure [Abstract]
Contingencies	CONTINGENCIES Tredegar is involved in various stages of investigation and remediation relating to environmental matters at certain current and former plant locations. Where the Company has determined the nature and scope of any required environmental remediation activity, estimates of cleanup costs have been obtained and accrued. As efforts continue to maintain compliance with applicable environmental laws and regulations, additional contingencies may be identified. If additional contingencies are identified, the Company’s practice is to determine the nature and scope of those contingencies, obtain and accrue estimates of the cost of remediation, and perform remediation. The Company does not believe that additional costs that could arise from those activities will have a material adverse effect on its financial position. However, those costs could have a material adverse effect on its financial condition, results of operations and cash flows at that time. The Company is involved in various other legal actions arising in the normal course of business. After taking into consideration the relevant information, the Company believes that it has sufficiently accrued for probable losses and that the actions will not have a material adverse effect on its financial position. However, the resolution of the actions in a future period could have a material adverse effect on quarterly or annual operating results at that time. From time to time, the Company enters into transactions with third parties in connection with the sale of assets or businesses in which it agrees to indemnify the buyers or third parties involved in the transaction, or in which the sellers or third parties involved in the transaction agree to indemnify Tredegar, for certain liabilities or risks related to the assets or business. Also, in the ordinary course of its business, the Company may enter into agreements with third parties for the sale of goods or services that may contain indemnification provisions. In the event that an indemnification claim is asserted, liability for indemnification would be subject to an assessment of the underlying facts and circumstances under the terms of the applicable agreement. Further, any indemnification payments may be limited or barred by a monetary cap, a time limitation, or a deductible or basket. For these reasons, Tredegar is unable to estimate the maximum amount of the potential future liability under the indemnity provisions of these agreements. The Company does, however, accrue for losses for any known contingent liability, including those that may arise from indemnification provisions, when future payment is probable and the amount is reasonably estimable. The Company discloses contingent liabilities if the probability of loss is reasonably possible and material. In 2011, Tredegar was notified by U.S. Customs and Border Protection (“U.S. Customs”) that certain film products exported by Terphane to the U.S. since November 6, 2008 could be subject to duties associated with an anti-dumping duty order on imported polyester films from Brazil. The Company contested the applicability of these anti-dumping duties to the films exported by Terphane, and a request was filed with the U.S. Department of Commerce (“Commerce”) for clarification about whether the film products at issue are within the scope of the anti-dumping duty order. On January 8, 2013, Commerce issued a scope ruling confirming that the films are not subject to the order, provided that Terphane can establish to the satisfaction of U.S. Customs that the performance enhancing layer on those films is greater than 0.00001 inches thick. The films at issue are manufactured to specifications that exceed that threshold. On February 6, 2013, certain U.S. producers of PET film filed a summons with the U.S. Court of International Trade to appeal the scope ruling from Commerce. If U.S. Customs ultimately were to require the collection of anti-dumping duties because Commerce’s scope ruling was overturned on appeal, or otherwise, indemnifications for related liabilities are specifically provided for under the Terphane purchase agreement. In December 2014, the U.S. International Trade Commission voted to revoke the anti-dumping duty order on imported PET films from Brazil. The revocation, as a result of the vote by the International Trade Commission, was effective as of November 2013. On February 20, 2015, certain U.S. producers of Flexible Packaging Films filed a summons with the U.S. Court of International Trade to appeal the determination by the U.S. International Trade Commission. The Court granted a motion by the plaintiffs to stay the appeal of the revocation decision pending the resolution of the scope appeal. A decision by the Court in the scope appeal remains pending.

Selected Quarterly Financial Da

Selected Quarterly Financial Data	12 Months Ended
	Dec. 31, 2016
Quarterly Financial Information Disclosure [Abstract]
Selected Quarterly Financial Data	SELECTED QUARTERLY FINANCIAL DATA Tredegar Corporation and Subsidiaries (In Thousands, Except Per-Share Amounts) (Unaudited) First Quarter Second Quarter Third Quarter Fourth Quarter For the year ended December 31, 2016 Sales $ 207,333 $ 208,533 $ 207,702 $ 204,772 Gross profit 37,279 31,637 33,927 27,801 Net income $ 7,281 $ 3,408 $ 12,048 $ 1,728 Earnings per share: Basic $ 0.22 $ 0.10 $ 0.37 $ 0.05 Diluted $ 0.22 $ 0.10 $ 0.37 $ 0.05 Shares used to compute earnings per share: Basic 32,654 32,716 32,818 32,856 Diluted 32,654 32,716 32,828 32,900 For the year ended December 31, 2015 Sales $ 234,171 $ 221,245 $ 223,772 $ 216,989 Gross profit 37,415 29,748 33,468 40,249 Net income (loss) $ 9,870 $ 594 $ (36,723 ) $ (5,876 ) Earnings (loss) per share: Basic $ 0.30 $ 0.02 $ (1.13 ) $ (0.18 ) Diluted $ 0.30 $ 0.02 $ (1.13 ) $ (0.18 ) Shares used to compute earnings (loss) per share: Basic 32,482 32,609 32,605 32,614 Diluted 32,628 32,746 32,605 32,614

Summary Of Significant Accoun31

Summary Of Significant Accounting Policies (Policies)	12 Months Ended
	Dec. 31, 2016
Accounting Policies [Abstract]
Basis Of Presentation	Basis of Presentation. The consolidated financial statements include the accounts and operations of Tredegar and all of its majority-owned subsidiaries. Intercompany accounts and transactions have been eliminated in consolidation. On February 12, 2008, Tredegar sold its aluminum extrusions business in Canada. All historical results for this business have been reflected as discontinued operations in these financial statements; however, cash flows for discontinued operations have not been separately disclosed in the consolidated statements of cash flows. See Note 3 regarding discontinued operations. The preparation of financial statements in conformity with United States (“U.S.”) generally accepted accounting principles (“GAAP”) requires Tredegar to make estimates and assumptions that affect the reported amounts of revenues, expenses, assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements. Actual results could differ from those estimates. Tredegar has historically reported two business segments: Film Products and Aluminum Extrusions. In the third quarter of 2015, the Company divided Film Products into two separate operating segments: PE Films and Flexible Packaging Films. All historical results for PE Films and Flexible Packaging Films have been separately presented to conform with the new presentation of segments. See Note 5 regarding business segments. Certain amounts for the prior years have been reclassified to conform to current year presentation.
Foreign Currency Translation	Foreign Currency Translation. The financial statements of subsidiaries located outside the U.S., where the local currency is the functional currency, are translated into U.S. Dollars using exchange rates in effect at the period end for assets and liabilities and average exchange rates during each reporting period for results of operations. Adjustments resulting from the translation of these financial statements are reflected as a separate component of shareholders’ equity. There are no operating subsidiaries located outside the U.S. where the U.S. Dollar is the functional currency. Transaction and remeasurement gains or losses included in income were losses of $3.6 million , $4.0 million and $1.5 million in 2016 , 2015 and 2014 , respectively. These amounts do not include the effects between reporting periods that exchange rate changes have on income of the locations outside the U.S. that result from translation into U.S. Dollars.
Cash And Cash Equivalents	Cash and Cash Equivalents. Cash and cash equivalents consist of cash on hand in excess of daily operating requirements and highly liquid investments with original maturities of three months or less. At December 31, 2016 and 2015 , Tredegar had cash and cash equivalents of $29.5 million and $44.2 million , respectively, including funds held in locations outside the U.S. of $23.8 million and $27.7 million , respectively. The Company’s policy permits investment of excess cash in marketable securities that have the highest credit ratings and maturities of less than one year. The primary objectives of the policy are safety of principal and liquidity.
Accounts And Other Receivables	Accounts and Other Receivables. Accounts receivable are stated at the amount invoiced to customers less allowances for doubtful accounts and sales returns. Accounts receivable are non-interest bearing and arise from the sale of product to customers under typical industry trade terms. Notes receivable are not significant. Past due amounts are determined based on established terms and charged-off when deemed uncollectible. The allowance for doubtful accounts is determined based on an assessment of probable losses taking into account past due amounts, customer credit profile, historical experience and current economic conditions. Other receivables include value-added taxes related to certain foreign subsidiaries and other miscellaneous receivables due within one year.
Inventories	Inventories. Inventories are stated at the lower of cost or market, with cost determined on the last-in, first-out (“LIFO”) basis, the weighted average cost or the first-in, first-out basis. Cost elements included in work-in-process and finished goods inventories are raw materials, direct labor and manufacturing overhead. Finished goods, work in process, raw materials and supplies, stores and other inventory are reviewed to determine if inventory quantities are in excess of forecasted usage or if they have become obsolete.
Property, Plant And Equipment	Property, Plant and Equipment. Accounts include costs of assets constructed or purchased, related delivery and installation costs and interest incurred on significant capital projects during their construction periods. Expenditures for renewals and betterments also are capitalized, but expenditures for repairs and maintenance are expensed as incurred. The cost and accumulated depreciation applicable to assets retired or sold are removed from the respective accounts, and gains or losses thereon are included in income. Capital expenditures for property, plant and equipment include capitalized interest. Capitalized interest included in capital expenditures for property, plant and equipment was $0.3 million , $0.4 million and $1.1 million in 2016 , 2015 and 2014 , respectively. Depreciation is computed primarily by the straight-line method based on the estimated useful lives of the assets that, except for isolated exceptions, range from 5 to 40 years for buildings and land improvements and 2 to 20 years for machinery and equipment.
Investments In Private Entities With Less Than Or Equal To 50% Voting Ownership Interest	Investments in Private Entities with Less Than or Equal to 50% Voting Ownership Interest. The Company accounts for its investments in private entities where its voting ownership is less than or equal to 50% based on the facts and circumstances surrounding the investment. Investments are required to be accounted for under the consolidation method in situations where Tredegar is the primary beneficiary of a variable interest entity. The primary beneficiary is the party that has a controlling financial interest in a variable interest entity. The Company is deemed to have a controlling financial interest if it has (i) the power to direct activities of the variable interest entity that most significantly impact its economic performance and (ii) the obligation to absorb losses or the right to receive benefits from the variable interest entity that could potentially be significant to its operations. If the Company is not deemed to be the primary beneficiary in an investment in a variable interest entity then it selects either: (i) the fair value method or (ii) either (a) the cost method if it does not have significant influence over operating and financial policies of the investee or (b) the equity method if it does have significant influence. For those investments measured at fair value, GAAP requires disclosure of the level within the fair value hierarchy in which fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets or liabilities (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3).
Goodwill And Other Intangibles	Goodwill and Other Intangibles. The excess of the purchase price over the fair value of identifiable net assets of acquired companies is allocated to goodwill. The Company assesses goodwill for impairment when events or circumstances indicate that the carrying value may not be recoverable or, at a minimum, on an annual basis (December 1st of each year). The Company’s significant operating units in PE Films include Personal Care and Surface Protection. There are two operating units in Aluminum Extrusions, Bonnell Aluminum and AACOA. Each of these reporting units has separately identifiable operating net assets (operating assets including goodwill and intangible assets net of operating liabilities). The Company recorded a goodwill impairment charge of $44.5 million ( $44.5 million after taxes) to write off the goodwill associated with Flexible Packaging Films in the third quarter of 2015. See Note 8 for additional details. The Company estimates the fair value of its reporting units using discounted cash flow analysis and comparative enterprise value-to-EBITDA (earnings before interest, taxes, depreciation and amortization) multiples. Goodwill of the PE Films operating units, Personal Care and Surface Protection, was tested for impairment at the annual testing date, with the estimated fair value of these reporting units exceeding the carrying value of their net assets by approximately 30% and 48% , respectively, at December 1, 2016. The goodwill of the Aluminum Extrusions reporting unit was tested for impairment at the annual testing date. All goodwill in Aluminum Extrusions is associated with the October 2012 acquisition of AACOA, Inc. (“AACOA”). The estimated fair value of this reporting unit substantially exceeded the carrying value of its net assets at December 1, 2016. Indefinite-lived intangible assets are assessed for impairment when events or circumstances indicate that the carrying value may not be recoverable, or, at a minimum, on an annual basis (December 1st of each year). The Company estimates the fair value of its trade names using a relief-from-royalty method that relies upon a corresponding discounted cash flow analysis. The indefinite-lived intangible assets of Flexible Packaging Films were tested for impairment at the annual testing date, with the estimated fair value of these reporting units exceeding the carrying value of their net assets by approximately 20% at December 1, 2016. For AACOA, the indefinite-lived intangible assets were tested for impairment at the annual testing date, with the estimated fair value substantially exceeding the carrying value of the net assets. Additional disclosure of Tredegar goodwill and other intangible assets is included in Note 8.
Impairment Of Long-Lived Assets	Impairment of Long-Lived Assets. The Company reviews long-lived assets for possible impairment when events indicate that an impairment may exist. For assets that are held and used in operations, if events indicate that an asset may be impaired, the Company estimates the future unlevered pre-tax cash flows expected to result from the use of the asset and its eventual disposition. Assets are grouped for this purpose at the lowest level for which there are identifiable and independent cash flows. If the sum of these undiscounted pre-tax cash flows is less than the carrying amount of the asset, an impairment loss is calculated. Measurement of the impairment loss is the amount by which the carrying amount exceeds the estimated fair value of the asset group. Assets that are held for sale are reported at the lower of their carrying amount or estimated fair value less cost to sell, with an impairment loss recognized for any write-down required.
Pension Costs And Postretirement Benefit Costs Other Than Pensions	Pension Costs and Postretirement Benefit Costs Other than Pensions. Pension costs and postretirement benefit costs other than pensions are accrued over the period employees provide service to Tredegar. Liabilities and expenses for pension plans and other postretirement benefits are determined using actuarial methodologies and incorporate significant assumptions, including the rate used to discount the future estimated liability, the long-term rate of return on plan assets, and several assumptions relating to the employee workforce. The Company recognizes the funded status of its pension and other postretirement plans in the accompanying consolidated balance sheets. Tredegar’s policy is to fund its pension plans at amounts not less than the minimum requirements of the Employee Retirement Income Security Act (“ERISA”) of 1974 and to fund postretirement benefits other than pensions when claims are incurred.
Revenue Recognition	Revenue Recognition. Revenue from the sale of products, which is shown net of estimated sales returns and allowances, is recognized when title has passed to the customer, the price of the product is fixed and determinable, and collectability is reasonably assured. Amounts billed to customers related to freight have been classified as sales in the accompanying consolidated statements of income. The cost of freight has been classified as a separate line in the accompanying consolidated statements of income. Taxes assessed by a governmental authority that are both imposed on and concurrent with a specific revenue-producing transaction between Tredegar and its customers (such as value-added taxes) are accounted for on a net basis and therefore excluded from revenues.
Research & Development ("R&D") Costs	Research & Development (“R&D”) Costs. R&D costs are expensed as incurred and include primarily salaries, wages, employee benefits, equipment depreciation, facility costs and the cost of materials consumed relating to R&D efforts. R&D costs include a reasonable allocation of indirect costs.
Income Taxes	Income Taxes. Income taxes are recognized during the period in which transactions enter into the determination of income for financial reporting purposes, with deferred income taxes being provided at enacted statutory tax rates on the differences between the financial reporting and tax bases of assets and liabilities (see Note 17). Tredegar’s policy is to accrue U.S. federal income taxes to the extent required under GAAP on unremitted earnings of all foreign subsidiaries. Prior to the second quarter of 2016, deferred U.S. federal income taxes had not been recorded for the undistributed earnings for Terphane Ltda. because the Company had intended to permanently reinvest these earnings. Due to concerns about the current political and economic conditions in Brazil, Terphane Ltda. has begun making cash distributions to the Company. During 2016, Terphane Ltda. paid dividends totaling $13.3 million to the Company. Because of the accumulation of significant losses related to foreign currency translations at Terphane Ltda., there were no unrecorded deferred tax liabilities associated with the U.S. federal income taxes and foreign withholding taxes on Terphane Ltda.’s undistributed earnings as of December 31, 2016 and December 31, 2015. A valuation allowance is recorded in the period when the Company determines that it is more likely than not that all or a portion of deferred tax assets may not be realized. The establishment and removal of a valuation allowance requires the Company to consider all positive and negative evidence and make a judgmental decision regarding the amount of valuation allowance required as of a reporting date. The benefit of an uncertain tax position is included in the accompanying financial statements when the Company determines that it is more likely than not that the position will be sustained, based on the technical merits of the position, if the taxing authority examines the position and the dispute is litigated. This determination is made on the basis of all the facts, circumstances and information available as of the reporting date.
Earnings Per Share	Earnings Per Share. Basic earnings per share is computed using the weighted average number of shares of common stock outstanding. Diluted earnings per share is computed using the weighted average common and potentially dilutive common equivalent shares outstanding, determined as follows: 2016 2015 2014 Weighted average shares outstanding used to compute basic earnings per share 32,761,793 32,578,116 32,302,108 Incremental shares attributable to stock options and restricted stock 13,279 — 251,746 Shares used to compute diluted earnings per share 32,775,072 32,578,116 32,553,854 Incremental shares attributable to stock options and restricted stock are computed using the average market price during the related period. The Company had a net loss from continuing operations in 2015, so there is no dilutive impact for such shares. If the Company had reported net income from continuing operations in 2015, average out-of-the-money options to purchase shares that would have been excluded from the calculation of incremental shares attributable to stock options and restricted stock were 881,513 . The average out-of-the-money options to purchase shares that were excluded from the calculation of incremental shares attributable to stock options and restricted stock were 128,200 in 2016 and 320,849 in 2014 .
Stock-Based Employee Compensation Plans	Stock-Based Employee Compensation Plans. Compensation expense is recorded on all share-based awards based upon its calculated fair value over the requisite service period using the graded-vesting method. The fair value of stock option awards was estimated as of the grant date using the Black-Scholes options-pricing model. The fair value of restricted stock awards was estimated as of the grant date using the closing stock price on that date. The assumptions used in this model for valuing Tredegar stock options granted in 2014 (no grants in 2015 and 2016) were as follows: 2014 Dividend yield 1.3 % Weighted average volatility percentage 43.5 % Weighted average risk-free interest rate 2.0 % Holding period (years): Officers 6.0 Management 5.0 Weighted average exercise price at date of grant (also weighted average market price at date of grant): Officers $ 22.49 Management $ 22.33 The dividend yield is the actual dividend yield on Tredegar’s common stock at the date of grant, which the Company believes is a reasonable estimate of the expected yield during the holding period. The expected volatility is based on the historical volatility of Tredegar’s common stock using a sequential period of historical data equal to the expected holding period of the option. The Company has no reason to believe that future volatility for this period is likely to differ from the past. The assumed risk-free interest rate is based on observed interest rates (zero coupon U.S. Treasury debt securities) appropriate for the expected holding period. The expected holding period and forfeiture assumptions are based on historical experience. Estimated forfeiture assumptions are reviewed through the vesting period. Adjustments are made if actual forfeitures differ from previous estimates. The cumulative effect of a change in estimated forfeitures is recognized in the period of the change.
Financial Instruments	Financial Instruments. Tredegar uses derivative financial instruments for the purpose of hedging aluminum price volatility and currency exchange rate exposures that exist as part of transactions associated with ongoing business operations. The Company’s derivative financial instruments are designated as and qualify as cash flow hedges and are recognized in the accompanying balance sheet at fair value. A change in the fair value of the derivative that is highly effective and that is designated and qualifies as a cash flow hedge is recorded in other comprehensive income. Gains and losses reported in other comprehensive income (loss) are reclassified to earnings in the periods in which earnings are affected by the variability of cash flows of the hedged transaction. Such gains and losses are reported on the same line as the underlying hedged item, and the cash flows related to financial instruments are classified in the consolidated statements of cash flows in a manner consistent with those of the transactions being hedged. Any hedge ineffectiveness (which represents the amount by which the changes in the fair value of the derivative exceed the variability in the cash flows of the forecasted transaction) is recorded in current period earnings. The amount of gains and losses recognized for hedge ineffectiveness were not material in 2016 , 2015 and 2014 . The Company’s policy requires that it formally document all relationships between hedging instruments and hedged items, as well as its risk management objective and strategy for undertaking various hedge transactions. The Company also formally assesses (both at the hedge’s inception and on an ongoing basis) whether the derivatives that are used in hedging transactions have been highly effective in offsetting changes in the fair value or cash flows of hedged items and whether those derivatives may be expected to remain highly effective in future periods. When it is determined that a derivative is not (or has ceased to be) highly effective as a hedge, the Company discontinues hedge accounting prospectively. As a policy, Tredegar does not engage in speculative or leveraged transactions, nor does it hold or issue financial instruments for trading purposes. Additional disclosure of the utilization of derivative hedging instruments is included in Note 9.
Comprehensive Income (Loss)	Comprehensive Income (Loss). Comprehensive income (loss) is defined as net income or loss as adjusted by other comprehensive income or loss items. Other comprehensive income (loss) includes changes in foreign currency translation adjustments, unrealized gains and losses on derivative financial instruments, prior service costs and net gains or losses from pension and other postretirement benefit plans arising during the period and amortization of these prior service costs and net gain or loss adjustments, all recorded net of deferred income taxes.
Recently Issued Accounting Standards	Recently Issued Accounting Standards .

Summary Of Significant Accoun32

Summary Of Significant Accounting Policies (Tables)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Schedule Of Diluted Earnings Per Share Computed Using Weighted Average Common And Potentially Dilutive Common Equivalent Shares Outstanding	Diluted earnings per share is computed using the weighted average common and potentially dilutive common equivalent shares outstanding, determined as follows: 2016 2015 2014 Weighted average shares outstanding used to compute basic earnings per share 32,761,793 32,578,116 32,302,108 Incremental shares attributable to stock options and restricted stock 13,279 — 251,746 Shares used to compute diluted earnings per share 32,775,072 32,578,116 32,553,854
Schedule Of Assumptions For Valuing Stock Options Granted	The assumptions used in this model for valuing Tredegar stock options granted in 2014 (no grants in 2015 and 2016) were as follows: 2014 Dividend yield 1.3 % Weighted average volatility percentage 43.5 % Weighted average risk-free interest rate 2.0 % Holding period (years): Officers 6.0 Management 5.0 Weighted average exercise price at date of grant (also weighted average market price at date of grant): Officers $ 22.49 Management $ 22.33
Schedule Of Stock Options Granted And Related Estimated Fair Value At Date Of Grant	Tredegar stock options granted during 2014 (no grants in 2015 and 2016), and related estimated fair value at the date of grant, are as follows: 2014 Stock options granted (number of shares): Officers 87,820 Management 93,656 Total 181,476 Estimated weighted average fair value of options per share at date of grant: Officers $ 9.21 Management $ 7.60 Total estimated fair value of stock options granted (in thousands) $ 1,521
Schedule of Accumulated Other Comprehensive Income (Loss)	The following table summarizes the after-tax changes in accumulated other comprehensive income (loss) for the year ended December 31, 2016 : (In Thousands) Foreign currency translation adjustment Gain (loss) on derivative financial instruments Pension and other post-retirement benefit adjustments Total Beginning balance, January 1, 2016 $ (112,807 ) $ (373 ) $ (95,539 ) $ (208,719 ) Other comprehensive income (loss) before reclassifications 18,837 247 (3,288 ) 15,796 Amounts reclassified from accumulated other comprehensive income (loss) — 989 8,700 9,689 Net other comprehensive income (loss) - current period 18,837 1,236 5,412 25,485 Ending balance, December 31, 2016 $ (93,970 ) $ 863 $ (90,127 ) $ (183,234 ) The following table summarizes the after-tax changes in accumulated other comprehensive income (loss) for the year ended December 31, 2015 : (In Thousands) Foreign currency translation adjustment Gain (loss) on derivative financial instruments Pension and other post-retirement benefit adjustments Total Beginning balance, January 1, 2015 $ (47,270 ) $ 656 $ (103,581 ) $ (150,195 ) Other comprehensive income (loss) before reclassifications (65,537 ) (3,221 ) (2,176 ) (70,934 ) Amounts reclassified from accumulated other comprehensive income (loss) — 2,192 10,218 12,410 Net other comprehensive income (loss) - current period (65,537 ) (1,029 ) 8,042 (58,524 ) Ending balance, December 31, 2015 $ (112,807 ) $ (373 ) $ (95,539 ) $ (208,719 )
Reclassification out of Accumulated Other Comprehensive Income	Reclassifications of balances out of accumulated other comprehensive income (loss) into net income during 2016 are summarized as follows: (In Thousands) Amount reclassified from other comprehensive income (loss) Location of gain (loss) reclassified from accumulated other comprehensive income (loss) to net income (loss) Gain (loss) on derivative financial instruments: Aluminum future contracts, before taxes $ (1,630 ) Cost of sales Foreign currency forward contracts, before taxes 62 Cost of sales Total, before taxes (1,568 ) Income tax expense (benefit) (579 ) Income taxes Total, net of tax $ (989 ) Amortization of pension and other post-retirement benefits: Actuarial gain (loss) and prior service costs, before taxes $ (13,098 ) (a) Income tax expense (benefit) (4,398 ) Income taxes Total, net of tax $ (8,700 ) (a) This component of accumulated other comprehensive income is included in the computation of net periodic pension cost (see Note 14 for additional detail).	Reclassifications of balances out of accumulated other comprehensive income (loss) into net income during 2015 are summarized as follows: (In Thousands) Amount reclassified from other comprehensive income (loss) Location of gain (loss) reclassified from accumulated other comprehensive income (loss) to net income Gain (loss) on derivative financial instruments: Aluminum future contracts, before taxes $ (3,538 ) Cost of sales Foreign currency forward contracts, before taxes 62 Cost of sales Total, before taxes (3,476 ) Income tax expense (benefit) (1,284 ) Income taxes Total, net of tax $ (2,192 ) Amortization of pension and other post-retirement benefits: Actuarial gain (loss) and prior service costs, before taxes $ (16,041 ) (a) Income tax expense (benefit) (5,823 ) Income taxes Total, net of tax $ (10,218 ) (a) This component of accumulated other comprehensive income is included in the computation of net periodic pension cost (see Note 14 for additional detail).	Reclassifications of balances out of accumulated other comprehensive income (loss) into net income during 2014 are summarized as follows: (In Thousands) Amount reclassified from other comprehensive income (loss) Location of gain (loss) reclassified from accumulated other comprehensive income (loss) to net income Gain (loss) on derivative financial instruments: Aluminum future contracts, before taxes $ 631 Cost of sales Foreign currency forward contracts, before taxes 16 Cost of sales Total, before taxes 647 Income tax expense (benefit) 244 Income taxes Total, net of tax $ 403 Amortization of pension and other post-retirement benefits: Actuarial gain (loss) and prior service costs, before taxes $ (10,579 ) (a) Income tax expense (benefit) (3,582 ) Income taxes Total, net of tax $ (6,997 ) (a) This component of accumulated other comprehensive income is included in the computation of net periodic pension cost (see Note 14 for additional detail).

Investments (Tables)

Investments (Tables)	12 Months Ended
	Dec. 31, 2016
Equity Method Investments and Joint Ventures [Abstract]
Schedule Of Fair Value Method Investments, Balance Sheets And Income Statements	The condensed balance sheets for kaléo at December 31, 2016 and 2015 and related condensed statements of operations for the last three years ended December 31, 2016 , as reported to the Company by kaléo, are provided below: December 31, December 31, (In Thousands) 2016 2015 2016 2015 Assets: Liabilities & Equity: Cash & cash equivalents $ 102,329 $ 91,844 Restricted cash 31 8,182 Current liabilities $ 50,134 $ 10,261 Other current assets 15,391 9,070 Long-term debt, net 143,380 142,696 Property & equipment 13,011 8,453 Other noncurrent liabilities 822 552 Other long-term assets 472 2,903 Equity (63,102 ) (33,057 ) Total assets $ 131,234 $ 120,452 Total liabilities & equity $ 131,234 $ 120,452 2016 2015 2014 Revenues & Expenses: Revenues $ 56,188 $ 35,731 $ 21,156 Cost of goods sold (15,428 ) (14,147 ) (3,801 ) Expenses and other, net (a) (71,548 ) (63,042 ) (48,447 ) Income tax (expense) benefit (35 ) (481 ) 8,100 Net income (loss) $ (30,823 ) $ (41,939 ) $ (22,992 ) (a) “Expenses and other, net” includes selling, general and administrative expense, research and development expense, gain on contract termination, interest expense and other income (expense), net. Excluding the gain on contract termination, “Expenses and other, net” would have been a net deduction of $89.6 million in 2016.

Business Segments (Tables)

Business Segments (Tables)	12 Months Ended
	Dec. 31, 2016
Segment Reporting [Abstract]
Schedule Of Segment Reporting Information By Segment	Net Sales (In Thousands) 2016 2015 2014 PE Films $ 331,146 $ 385,550 $ 464,339 Flexible Packaging Films 108,028 105,332 114,348 Aluminum Extrusions 360,098 375,457 344,346 Total net sales 799,272 866,339 923,033 Add back freight 29,069 29,838 28,793 Sales as shown in consolidated statements of income $ 828,341 $ 896,177 $ 951,826 Operating Profit (In Thousands) 2016 2015 2014 PE Films: Ongoing operations $ 26,312 $ 48,275 $ 60,971 Plant shutdowns, asset impairments, restructurings and other (a) (4,602 ) (4,180 ) (12,236 ) Flexible Packaging Films: Ongoing operations 1,774 5,453 (2,917 ) Plant shutdowns, asset impairments, restructurings and other (a) (214 ) (185 ) (591 ) Goodwill impairment charge — (44,465 ) — Aluminum Extrusions: Ongoing operations 37,794 30,432 25,664 Plant shutdowns, asset impairments, restructurings and other (a) (741 ) (708 ) (976 ) Total 60,323 34,622 69,915 Interest income 261 294 588 Interest expense 3,806 3,502 2,713 Gain (loss) on investment accounted for under the fair value method (a) 1,600 (20,500 ) 2,000 Gain on sale of investment property (a) — — 1,208 Unrealized loss on investment property (a) 1,032 — — Stock option-based compensation expense 56 483 1,272 Corporate expenses, net (a) 29,607 33,638 24,310 Income (loss) from continuing operations before income taxes 27,683 (23,207 ) 45,416 Income taxes (a) 3,217 8,928 9,387 Income (loss) from continuing operations 24,466 (32,135 ) 36,029 Income (loss) from discontinued operations (a) — — 850 Net income (loss) $ 24,466 $ (32,135 ) $ 36,879
Schedule Of Identifiable Assets	Identifiable Assets (In Thousands) 2016 2015 PE Films $ 278,558 $ 270,236 Flexible Packaging Films 156,836 146,253 Aluminum Extrusions 147,639 136,935 Subtotal 583,033 553,424 General corporate (b) 38,618 25,680 Cash and cash equivalents (d) 29,511 44,156 Total $ 651,162 $ 623,260
Schedule Of Depreciation And Amortization, Capital Expenditures	Depreciation and Amortization Capital Expenditures (In Thousands) 2016 2015 2014 2016 2015 2014 PE Films $ 13,653 $ 15,480 $ 21,399 $ 25,759 $ 21,218 $ 17,000 Flexible Packaging Films 9,505 9,697 9,331 3,391 3,489 21,806 Aluminum Extrusions 9,173 9,698 9,974 15,918 8,124 6,092 Subtotal 32,331 34,875 40,704 45,068 32,831 44,898 General corporate 141 107 114 389 — — Total $ 32,472 $ 34,982 $ 40,818 $ 45,457 $ 32,831 $ 44,898
Schedule Of Net Sales By Geographic Area	Net Sales by Geographic Area (d) (In Thousands) 2016 2015 2014 United States $ 475,734 $ 528,881 $ 542,395 Exports from the United States to: Asia 73,220 75,383 72,597 Canada 45,683 45,290 47,391 Europe 7,348 9,809 10,874 Latin America 5,561 3,464 3,116 Operations outside the United States: Brazil 90,571 89,829 97,954 The Netherlands 54,352 53,211 74,329 Hungary 24,207 32,612 39,457 China 14,390 18,919 26,109 India 8,206 8,941 8,811 Total (c) $ 799,272 $ 866,339 $ 923,033
Schedule Of Identifiable Assets By Geographic Area, Property, Plant & Equipment, Net By Geographic Area	Identifiable Assets by Geographic Area (d) Property, Plant & Equipment, Net by Geographic Area (d) (In Thousands) 2016 2015 2016 2015 United States (b) $ 367,406 $ 351,115 $ 118,661 $ 104,380 Operations outside the United States: Brazil 139,163 126,478 91,553 78,845 China 29,751 34,409 23,759 27,563 Hungary 20,610 14,798 15,117 8,135 The Netherlands 19,484 19,372 5,784 6,224 India 6,619 7,252 4,670 5,234 General corporate (b) 38,618 25,680 1,181 934 Cash and cash equivalents (d) 29,511 44,156 n/a n/a Total $ 651,162 $ 623,260 $ 260,725 $ 231,315
Schedule Of Net Sales By Product Group	Net Sales by Product Group (In Thousands) 2016 2015 2014 PE Films: Personal care materials $ 238,213 $ 287,768 $ 367,451 Surface protection films 84,013 90,197 90,129 LED lighting products & other films 8,920 7,585 6,759 Subtotal 331,146 385,550 464,339 Flexible Packaging Films 108,028 105,332 114,348 Aluminum Extrusions: Nonresidential building & construction 212,863 221,363 200,707 Consumer durables 39,293 41,835 44,897 Automotive 34,700 30,250 22,272 Machinery & equipment 20,872 18,102 26,907 Distribution 20,506 18,659 15,318 Residential building & construction 20,252 22,737 21,470 Electrical 11,612 22,511 12,775 Subtotal 360,098 375,457 344,346 Total $ 799,272 $ 866,339 $ 923,033

Accounts And Other Receivables

Accounts And Other Receivables (Tables)	12 Months Ended
	Dec. 31, 2016
Accounts and Notes Receivable, Net [Abstract]
Schedule Of Accounts And Other Receivable	Accounts and other receivables consist of the following: (In Thousands) 2016 2015 Trade, less allowance for doubtful accounts and sales returns of $3,102 in 2016 and $3,746 in 2015 $ 91,109 $ 90,028 Other 6,279 4,189 Total $ 97,388 $ 94,217
Schedule Of Reconciliation Of The Beginning And Ending Balances Of The Allowance For Doubtful Accounts And Sales Returns	A reconciliation of the beginning and ending balances of the allowance for doubtful accounts and sales returns for the three years ended December 31, 2016 is as follows: (In Thousands) 2016 2015 2014 Balance, beginning of year $ 3,746 $ 2,610 $ 3,327 Charges to expense 1,410 3,387 1,344 Recoveries (32 ) (7 ) (1,654 ) Write-offs and settlements (2,167 ) (1,970 ) (153 ) Foreign exchange and other 145 (274 ) (254 ) Balance, end of year $ 3,102 $ 3,746 $ 2,610

Inventories (Tables)

Inventories (Tables)	12 Months Ended
	Dec. 31, 2016
Inventory, Net [Abstract]
Schedule Of Inventories	Inventories consist of the following: (In Thousands) 2016 2015 Finished goods $ 16,215 $ 13,935 Work-in-process 8,590 9,249 Raw materials 23,733 22,149 Stores, supplies and other 17,531 19,992 Total $ 66,069 $ 65,325

Goodwill And Other Intangible37

Goodwill And Other Intangible Assets (Tables)	12 Months Ended
	Dec. 31, 2016
Goodwill and Intangible Assets Disclosure [Abstract]
Schedule Of Goodwill And Other Intangibles	The components of goodwill and other intangibles at December 31, 2016 and 2015 , and related amortization periods for continuing operations are as follows: (In Thousands) 2016 2015 Amortization Periods Goodwill $ 117,822 $ 117,839 Not amortized Other identifiable intangibles (a): Customer relationships (cost basis of $26,021 in 2016 and $23,766 in 2015) 14,844 15,620 10-12 years Proprietary technology (cost basis of $17,366 in 2016 and $16,738 in 2015) 7,582 9,037 Not more than 15 years Trade names 11,175 10,576 Indefinite life Total carrying value of other intangibles 33,601 35,233 Total carrying value of goodwill and other intangibles $ 151,423 $ 153,072
Reconciliation Of The Beginning And Ending Balance Of Goodwill	A reconciliation of the beginning and ending balance of goodwill for each of the two years in the period ended December 31, 2016 is as follows: (In Thousands) PE Films Flexible Packaging Films Aluminum Extrusions (1) Total Net carrying value of goodwill at January 1, 2015 $ 104,160 $ 51,831 $ 13,696 $ 169,687 Goodwill impairment charge — (44,465 ) — (44,465 ) Increase (decrease) due to foreign currency translation (17 ) (7,366 ) — (7,383 ) Net carrying value of goodwill at December 31, 2015 104,143 — 13,696 117,839 Increase (decrease) due to foreign currency translation (17 ) — — (17 ) Net carrying value of goodwill at December 31, 2016 $ 104,126 $ — $ 13,696 $ 117,822
Schedule Of Expected Amortization Expense	Amortization expense for continuing operations over the next five years is expected to be as follows: Year Amount (In Thousands) 2017 $ 4,007 2018 3,873 2019 3,473 2020 3,473 2021 3,360

Financial Instruments (Tables)

Financial Instruments (Tables)	12 Months Ended
	Dec. 31, 2016
Derivatives, Fair Value [Line Items]
Schedule Of Pretax Effect On Net Income (Loss) And Other Comprehensive Income (Loss) Of Derivative Instruments Classified As Cash Flow Hedges	The pretax effect on net income (loss) and other comprehensive income (loss) of derivative instruments classified as cash flow hedges and described in the previous paragraphs for years ended December 31, 2016 , 2015 , and 2014 is summarized in the tables below: (In Thousands) Cash Flow Derivative Hedges Aluminum Futures Contracts Foreign Currency Forwards and Options Years Ended December 31, 2016 2015 2014 2016 2015 2014 Amount of pre-tax gain (loss) recognized in other comprehensive income $ 394 $ (5,055 ) $ 542 $ — $ — $ (120 ) Location of gain (loss) reclassified from accumulated other comprehensive income into net income (effective portion) Cost of sales Cost of sales Cost of sales Cost of Cost of Cost of Amount of pre-tax gain (loss) reclassified from accumulated other comprehensive income to net income (effective portion) $ (1,630 ) $ (3,538 ) $ 631 $ 62 $ 62 $ 16
Aluminum Futures Contracts
Derivatives, Fair Value [Line Items]
Summary Of Location And Fair Value Of Derivative Financial Instruments	The table below summarizes the location and gross amounts of aluminum derivative contract fair values (Level 2) in the consolidated balance sheets as of December 31, 2016 and 2015 : December 31, 2016 December 31, 2015 (In Thousands) Balance Sheet Account Fair Value Balance Sheet Account Fair Value Derivatives Designated as Hedging Instruments Asset derivatives: Aluminum futures contracts Prepaid expenses and other $ 308 Accrued expenses $ 44 Liability derivatives: Aluminum futures contracts Prepaid expenses and other $ (37 ) Accrued expenses $ (1,797 ) Derivatives Not Designated as Hedging Instruments Asset derivatives: Aluminum futures contracts Prepaid expenses and other $ — Accrued expenses $ — Liability derivatives: Aluminum futures contracts Prepaid expenses and other $ — Accrued expenses $ — Net asset (liability) $ 271 $ (1,753 )
Foreign Currency Forward Contracts
Derivatives, Fair Value [Line Items]
Summary Of Location And Fair Value Of Derivative Financial Instruments

Accrued Expenses (Tables)

Accrued Expenses (Tables)	12 Months Ended
	Dec. 31, 2016
Accrued Liabilities [Abstract]
Schedule Of Accrued Expenses	Accrued expenses consist of the following: (In Thousands) 2016 2015 Vacation $ 8,254 $ 7,155 Incentive compensation 5,530 3,883 Payrolls, related taxes and medical and other benefits 5,519 4,762 Workers’ compensation and disabilities 3,732 3,036 Accrued utilities 2,126 2,048 Environmental liabilities (current) 2,100 1,713 Accrued severance 1,976 1,908 Accrued freight 1,612 1,111 Customer rebates 842 2,032 Derivative contract liability — 1,753 Other 6,956 4,252 Total $ 38,647 $ 33,653
Schedule Of Reconciliation Of Beginning And Ending Balances Of Accrued Expenses Associated With Asset Impairments And Costs Associated With Exit And Disposal Activities	A reconciliation of the beginning and ending balances of accrued expenses associated with asset impairments and costs associated with exit and disposal activities for each of the three years in the period ended December 31, 2016 is as follows: (In Thousands) Severance Asset Impairments Other (a) Total Balance at January 1, 2014 $ 331 $ — $ 356 $ 687 For the year ended December 31, 2014: Charges 2,668 227 131 3,026 Cash spend (2,753 ) — (286 ) (3,039 ) Charges against assets — (227 ) — (227 ) Balance at December 31, 2014 246 — 201 447 For the year ended December 31, 2015: Charges 2,568 403 879 3,850 Cash spend (1,352 ) — (675 ) (2,027 ) Charges against assets — (403 ) — (403 ) Balance at December 31, 2015 1,462 — 405 1,867 For the year ended December 31, 2016: Charges 1,535 603 546 2,684 Cash spend (1,143 ) — (397 ) (1,540 ) Charges against assets — (603 ) — (603 ) Balance at December 31, 2016 $ 1,854 $ — $ 554 $ 2,408 (a) Other includes other shutdown-related costs associated with the consolidation of domestic PE Films manufacturing facilities and the shutdown of the Company’s aluminum extrusions manufacturing facility in Kentland, Indiana.

Debt And Credit Agreements (Tab

Debt And Credit Agreements (Tables)	12 Months Ended
	Dec. 31, 2016
Debt Disclosure [Abstract]
Schedule Of Borrowings Under Credit Agreement At Various Indebtedness To Adjusted EBITDA Levels
Summary Of Total Debt Due And Outstanding	At December 31, 2016 , based upon the most restrictive covenants within the Credit Agreement, available credit under the Credit Agreement was approximately $185.0 million . Total debt due and outstanding at December 31, 2016 is summarized below: Debt Due and Outstanding at December 31, 2016 (In Thousands) Year Due Credit Agreement Other Total Debt Due 2017 $ — $ — $ — 2018 — — — 2019 — — — 2020 — — — 2021 95,000 — 95,000 Total $ 95,000 $ — $ 95,000

Stock Option And Stock Award 41

Stock Option And Stock Award Plans (Tables)	12 Months Ended
	Dec. 31, 2016
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Summary Of Stock Options Outstanding	A summary of stock options outstanding at December 31, 2016 , 2015 and 2014 , and changes during those years, is presented below: Option Exercise Price/Share Number of Options Range Weighted Average Outstanding at January 1, 2014 1,046,800 $ 14.06 to $ 30.01 $ 19.06 Granted 181,476 19.84 to 22.49 22.41 Forfeited and Expired (22,581 ) 15.80 to 24.84 21.42 Exercised (41,575 ) 15.80 to 19.84 17.55 Outstanding at December 31, 2014 1,164,120 14.06 to 30.01 19.59 Granted — — to — — Forfeited and Expired (60,207 ) 17.13 to 30.01 22.30 Exercised (222,400 ) 14.06 to 19.84 16.34 Outstanding at December 31, 2015 881,513 17.13 to 30.01 20.22 Granted — — to — — Forfeited and Expired (246,394 ) 17.13 to 30.01 18.90 Exercised (134,200 ) 17.13 to 19.84 17.23 Outstanding at December 31, 2016 500,919 $ 17.13 to $ 30.01 $ 21.67
Summary Of Additional Information On Stock Options Outstanding And Exercisable	The following table summarizes additional information about stock options outstanding and exercisable at December 31, 2016 : Options Outstanding at December 31, 2016 Options Exercisable at December 31, 2016 Weighted Average Aggregate Intrinsic Value (In Thousands) Aggregate Intrinsic Value Range of Exercise Prices Shares Remaining Contractual Life (Years) Exercise Price Shares Weighted Average Exercise Price $ — to $ 15.00 — 0.0 $ — $ — — $ — $ — 15.01 to 17.50 13,000 0.1 17.13 89,310 13,000 17.13 89,310 17.51 to 20.00 226,425 2.8 19.59 999,156 226,425 19.59 999,156 20.01 to 25.00 258,694 6.5 23.63 201,274 211,542 23.74 149,553 25.01 to 30.01 2,800 6.6 30.01 — 2,100 30.01 — Total 500,919 4.6 $ 21.67 $ 1,289,740 453,067 $ 21.50 $ 1,238,019
Summary Of Additional Information On Non-Vested Restricted Stock Outstanding	The following table summarizes additional information about unvested restricted stock outstanding at December 31, 2016 , 2015 and 2014 : Unvested Restricted Stock Maximum Unvested Restricted Stock Units Issuable Upon Satisfaction of Certain Performance Criteria Number of Shares Weighted Avg. Grant Date Fair Value/Share Grant Date Fair Value (In Thousands) Number of Shares Weighted Avg. Grant Date Fair Value/Share Grant Date Fair Value (In Thousands) Outstanding at January 1, 2014 157,850 $ 22.00 $ 3,473 132,300 $ 23.81 $ 3,150 Granted 95,707 22.18 2,123 59,675 21.54 1,285 Vested (54,921 ) 20.73 (1,139 ) — — — Forfeited (10,578 ) 21.76 (230 ) (62,262 ) 19.18 (1,194 ) Outstanding at December 31, 2014 188,058 22.48 4,227 129,713 24.99 3,241 Granted 147,666 18.87 2,786 144,582 18.47 2,670 Vested (174,145 ) 20.57 (3,582 ) — — — Forfeited (29,226 ) 21.42 (626 ) (107,167 ) 20.78 (2,227 ) Outstanding at December 31, 2015 132,353 21.19 2,805 167,128 22.04 3,684 Granted 144,546 13.47 1,947 136,986 11.34 1,553 Vested (52,167 ) 21.56 (1,125 ) — — — Forfeited (17,377 ) 18.97 (330 ) (65,685 ) 20.24 (1,329 ) Outstanding at December 31, 2016 207,355 $ 15.90 $ 3,297 238,429 $ 16.39 $ 3,908

Retirement Plans And Other Po42

Retirement Plans And Other Postretirement Benefits (Tables)	12 Months Ended
	Dec. 31, 2016
Compensation and Retirement Disclosure [Abstract]
Reconciliation Of Changes In Benefit Obligations And Plan Assets	The following tables reconcile the changes in benefit obligations and plan assets in 2016 and 2015 , and reconcile the funded status to prepaid or accrued cost at December 31, 2016 and 2015 : Pension Benefits Other Post- Retirement Benefits (In Thousands) 2016 2015 2016 2015 Change in benefit obligation: Benefit obligation, beginning of year $ 303,852 $ 325,426 $ 7,745 $ 8,372 Service cost 231 530 38 44 Interest cost 13,323 13,217 337 325 Effect of actuarial (gains) losses related to the following: Discount rate change 9,296 (14,687 ) 210 (356 ) Retirement rate assumptions and mortality table adjustments (5,537 ) (5,456 ) (433 ) 32 Other (3,025 ) (746 ) (131 ) (332 ) Plan participant contributions — — 634 625 Benefits paid (15,014 ) (14,432 ) (964 ) (965 ) Benefit obligation, end of year $ 303,126 $ 303,852 $ 7,436 $ 7,745 Change in plan assets: Plan assets at fair value, beginning of year $ 210,642 $ 229,017 $ — $ — Actual return on plan assets 11,199 (6,311 ) — — Employer contributions 7,732 2,368 330 340 Plan participant contributions — — 634 625 Benefits paid (15,014 ) (14,432 ) (964 ) (965 ) Plan assets at fair value, end of year $ 214,559 $ 210,642 $ — $ — Funded status of the plans $ (88,567 ) $ (93,210 ) $ (7,436 ) $ (7,745 ) Amounts recognized in the consolidated balance sheets: Accrued expenses (current) $ 182 $ 210 $ 453 $ 455 Other noncurrent liabilities 88,385 93,000 6,983 7,290 Net amount recognized $ 88,567 $ 93,210 $ 7,436 $ 7,745
Components Of Net Periodic Benefit Income Or Cost For Continuing Operations	Assumptions used for financial reporting purposes to compute net benefit income or cost and benefit obligations for continuing operations, and the components of net periodic benefit income or cost for continuing operations, are as follows: Pension Benefits Other Post- Retirement Benefits (In Thousands, Except Percentages) 2016 2015 2014 2016 2015 2014 Weighted-average assumptions used to determine benefit obligations: Discount rate 4.29 % 4.55 % 4.17 % 4.24 % 4.49 % 4.11 % Expected long-term return on plan assets 6.50 % 7.00 % 7.50 % n/a n/a n/a Weighted-average assumptions used to determine net periodic benefit cost: Discount rate 4.55 % 4.17 % 4.99 % 4.49 % 4.11 % 4.88 % Expected long-term return on plan assets 7.00 % 7.50 % 7.75 % n/a n/a n/a Components of net periodic benefit cost: Service cost $ 231 $ 530 $ 869 $ 38 $ 44 $ 43 Interest cost 13,323 13,217 13,397 337 325 387 Expected return on plan assets (15,980 ) (17,636 ) (18,301 ) — — — Amortization of prior service costs and gains or losses 13,312 16,190 10,688 (214 ) (194 ) (190 ) Settlement/curtailment — 45 81 — — — Net periodic benefit cost $ 10,886 $ 12,346 $ 6,734 $ 161 $ 175 $ 240
Schedule Of Expected Benefit Payments For Continuing Operations	Expected benefit payments for continuing operations over the next five years and in the aggregate for 2021-2025 are as follows: (In Thousands) Pension Benefits Other Post- Retirement Benefits 2017 $ 16,165 $ 453 2018 16,568 456 2019 17,076 460 2020 17,537 462 2021 17,860 465 2022—2026 92,955 2,322
Schedule Of Amounts Recognized Before Related Deferred Income Taxes In Accumulated Other Comprehensive Income	Amounts recorded in 2016 , 2015 and 2014 in accumulated other comprehensive income, before related deferred income taxes, consist of: Pension Other Post-Retirement (In Thousands) 2016 2015 2014 2016 2015 2014 Prior service cost (benefit) $ 10 $ 18 $ 87 $ — $ — $ — Net actuarial (gain) loss 145,782 153,570 166,678 (1,756 ) (1,616 ) (1,154 )
Schedule Of Amounts Before Related Deferred Income Taxes In Accumulated Other Comprehensive Income That Are Expected To Be Recognized As Components Of Net Periodic Benefit Or Cost	The amounts in accumulated other comprehensive income, before related deferred income taxes, that are expected to be recognized as components of net periodic benefit or cost during 2017 are as follows: (In Thousands) Pension Other Post- Retirement Prior service cost (benefit) $ 5 $ — Net actuarial (gain) loss 12,329 (245 )
Schedule Of Percentage Composition Of Assets Held By Pension Plans	The percentage composition of assets held by pension plans for continuing operations at December 31, 2016 , 2015 and 2014 are as follows: % Composition of Plan Assets at December 31, 2016 2015 2014 Pension plans related to continuing operations: Fixed income securities 8.0 % 12.8 % 14.5 % Large/mid-capitalization equity securities 14.7 13.8 13.7 Small-capitalization equity securities 5.3 4.0 4.3 International and emerging market equity securities 11.5 10.9 11.0 Total equity securities 31.5 28.7 29.0 Private equity and hedge funds 48.4 52.4 51.2 Other assets 12.1 6.1 5.3 Total for continuing operations 100.0 % 100.0 % 100.0 %
Schedule Of Targeted Allocation Percentage For Pension Plan Assets And Expected Long-Term Rate Of Return On Assets	targeted allocation percentage for pension plan assets and the expected long-term rate of return on assets used to determine its benefit obligation at December 31, 2016 , are as follows: Target % Composition of Plan Assets * Expected Long-term Return % Pension plans related to continuing operations: Fixed income securities 22.0 % 3.8 % Large/mid-capitalization equity securities 14.0 8.4 Small-capitalization equity securities 5.0 9.5 International and emerging market equity securities 13.0 8.6 Total equity securities 32.0 8.7 Private equity and hedge funds 46.0 6.3 Total for continuing operations 100.0 % 6.5 % * Target percentages for the composition of plan assets represents a neutral position within the approved range of allocations for such assets.
Schedule Of Pension Plan Assets Categorized By Level Within Fair Value Measurement Hierarchy	At December 31, 2016 and 2015 , the pension plan assets are categorized by level within the fair value measurement hierarchy as follows: (In Thousands) Total Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Balances at December 31, 2016 Large/mid-capitalization equity securities $ 31,549 $ 31,549 $ — $ — Small-capitalization equity securities 11,389 11,389 — — International and emerging market equity securities 24,710 11,410 13,300 — Fixed income securities 17,213 4,441 12,772 — Other assets 15,853 15,853 — — Total plan assets at fair value $ 100,714 $ 74,642 $ 26,072 $ — Private equity and hedge funds 103,686 Contracts with insurance companies 10,158 Total plan assets, December 31, 2016 $ 214,558 Balances at December 31, 2015 Large/mid-capitalization equity securities $ 29,027 $ 29,027 $ — $ — Small-capitalization equity securities 8,457 8,457 — — International and emerging market equity securities 23,054 10,126 12,928 — Fixed income securities 22,968 10,626 12,342 — Other assets 2,727 2,727 — — Total plan assets at fair value $ 86,233 $ 60,963 $ 25,270 $ — Private equity and hedge funds 110,340 Contracts with insurance companies 10,207 Fixed income securities 3,862 Total plan assets, December 31, 2015 $ 210,642
Schedule Of Fair Value Measurements Of Plan Assets Using Significant Unobservable Inputs (Level 3), Reconciliation Of Balances

Rental Expense And Contractua43

Rental Expense And Contractual Commitments (Tables)	12 Months Ended
	Dec. 31, 2016
Leases, Operating [Abstract]
Schedule Of Rental Commitments Under All Non-Cancelable Operating Leases For Continuing Operation	Rental expense for continuing operations was $2.9 million in 2016 , $3.6 million in 2015 and $3.6 million in 2014 . Rental commitments under all non-cancelable leases (including $0.3 million for capital leases) for continuing operations as of December 31, 2016 , are as follows: (in thousands) 2017 $ 2,397 2018 2,200 2019 1,982 2020 1,976 2021 1,491 Remainder 1,169 Total minimum lease payments $ 11,215

Income Taxes (Tables)

Income Taxes (Tables)	12 Months Ended
	Dec. 31, 2016
Income Tax Disclosure [Abstract]
Schedule Of Income From Continuing Operations Before Income Taxes	Income from continuing operations before income taxes and income taxes are as follows: (In Thousands) 2016 2015 2014 Income from continuing operations before income taxes: Domestic $ 26,284 $ (9,116 ) $ 38,402 Foreign 1,399 (14,091 ) 7,014 Total $ 27,683 $ (23,207 ) $ 45,416 Current income taxes: Federal $ 4,302 $ 12,693 $ 14,568 State (709 ) 973 2,178 Foreign 3,255 6,064 4,102 Total 6,848 19,730 20,848 Deferred income taxes: Federal (2,505 ) (9,419 ) (9,530 ) State 1,396 (1,035 ) (417 ) Foreign (2,522 ) (348 ) (1,514 ) Total (3,631 ) (10,802 ) (11,461 ) Total income taxes $ 3,217 $ 8,928 $ 9,387
Summary 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 continuing operations are as follows: Percent of Income Before Income Taxes from Continuing Operations 2016 2015 2014 Federal statutory rate 35.0 35.0 35.0 State taxes, net of federal income tax benefit 2.3 0.3 2.2 Foreign rate differences 1.8 3.1 (0.1 ) Non-deductible expenses 1.4 (1.9 ) 0.9 Changes in estimates related to prior year tax provision 1.2 (2.1 ) (2.3 ) Valuation allowance for capital loss carry-forwards 1.0 1.3 (10.2 ) Tax contingency accruals and tax settlements 0.4 (3.1 ) 2.0 Tax incentive — 0.5 (0.1 ) Foreign investment write down (0.7 ) (10.9 ) — Unremitted earnings from foreign operations (0.9 ) 2.2 (3.8 ) Valuation allowance due to foreign losses (1.5 ) — (0.4 ) Research and development tax credit (2.0 ) 1.5 (0.6 ) Domestic Production Activities Deduction (2.7 ) 3.6 (1.9 ) Remitted earnings from foreign operations (23.7 ) 0.1 — Goodwill impairment — (68.1 ) — Effective income tax rate for continuing operations 11.6 (38.5 ) 20.7
Schedule Of Deferred Tax Liabilities And Assets	Deferred tax liabilities and deferred tax assets at December 31, 2016 and 2015 , are as follows: (In Thousands) 2016 2015 Deferred tax liabilities: Amortization of goodwill and other intangibles $ 43,546 $ 42,900 Depreciation 24,178 22,221 Foreign currency translation gain adjustment 1,424 2,738 Derivative financial instruments 493 — Total deferred tax liabilities 69,641 67,859 Deferred tax assets: Pensions 30,733 31,972 Employee benefits 10,262 10,397 Excess capital losses and book/tax basis differences on investments 7,595 8,026 Inventory 3,622 4,636 Asset write-offs, divestitures and environmental accruals 2,515 2,022 Tax benefit on state and foreign NOL and credit carryforwards 4,921 1,624 Timing adjustment for unrecognized tax benefits on uncertain tax positions, including portion relating to interest and penalties 395 1,006 Allowance for doubtful accounts 198 406 Derivative financial instruments — 234 Other 1,568 2,224 Deferred tax assets before valuation allowance 61,809 62,547 Less: Valuation allowance 12,694 13,344 Total deferred tax assets 49,115 49,203 Net deferred tax liability $ 20,526 $ 18,656 Amounts recognized in the consolidated balance sheets: Other assets and deferred charges (noncurrent) 584 — Deferred income taxes (noncurrent) $ 21,110 $ 18,656 Net deferred tax liability $ 20,526 $ 18,656
Schedule Of Unrecognized Uncertain Tax Positions	A reconciliation of the Company’s unrecognized uncertain tax positions since January 1, 2014 , is shown below: Years Ended December 31, (In Thousands) 2016 2015 2014 Balance at beginning of period $ 4,049 $ 3,255 $ 2,239 Increase (decrease) due to tax positions taken in: Current period 1,151 518 619 Prior period 43 326 397 Increase (decrease) due to settlements with taxing authorities (1,706 ) — — Reductions due to lapse of statute of limitations (222 ) (50 ) — Balance at end of period $ 3,315 $ 4,049 $ 3,255
Schedule Of Additional Information Related To Unrecognized Uncertain Tax Positions	Additional information related to unrecognized uncertain tax positions since January 1, 2014 is summarized below: Years Ended December 31, (In Thousands) 2016 2015 2014 Gross unrecognized tax benefits on uncertain tax positions (reflected in current income tax and other noncurrent liability accounts in the balance sheet) $ 3,315 $ 4,049 $ 3,255 Deferred income tax assets related to unrecognized tax benefits on uncertain tax positions (reflected in deferred income tax accounts in the balance sheet) (345 ) (858 ) (726 ) Net unrecognized tax benefits on uncertain tax positions, which would impact the effective tax rate if recognized 2,970 3,191 2,529 Interest and penalties accrued on deductions taken relating to uncertain tax positions (approximately $(262), $90 and $150 reflected in income tax expense in the income statement in 2016, 2015 and 2014, respectively, with the balance shown in current income tax and other noncurrent liability accounts in the balance sheet) 135 397 310 Related deferred income tax assets recognized on interest and penalties (49 ) (148 ) (116 ) Interest and penalties accrued on uncertain tax positions net of related deferred income tax benefits, which would impact the effective tax rate if recognized 86 249 194 Total net unrecognized tax benefits on uncertain tax positions reflected in the balance sheet, which would impact the effective tax rate if recognized $ 3,056 $ 3,440 $ 2,723

Selected Quarterly Financial 45

Selected Quarterly Financial Data (Tables)	12 Months Ended
	Dec. 31, 2016
Quarterly Financial Information Disclosure [Abstract]
Schedule Of Selected Quarterly Financial Data	Tredegar Corporation and Subsidiaries (In Thousands, Except Per-Share Amounts) (Unaudited) First Quarter Second Quarter Third Quarter Fourth Quarter For the year ended December 31, 2016 Sales $ 207,333 $ 208,533 $ 207,702 $ 204,772 Gross profit 37,279 31,637 33,927 27,801 Net income $ 7,281 $ 3,408 $ 12,048 $ 1,728 Earnings per share: Basic $ 0.22 $ 0.10 $ 0.37 $ 0.05 Diluted $ 0.22 $ 0.10 $ 0.37 $ 0.05 Shares used to compute earnings per share: Basic 32,654 32,716 32,818 32,856 Diluted 32,654 32,716 32,828 32,900 For the year ended December 31, 2015 Sales $ 234,171 $ 221,245 $ 223,772 $ 216,989 Gross profit 37,415 29,748 33,468 40,249 Net income (loss) $ 9,870 $ 594 $ (36,723 ) $ (5,876 ) Earnings (loss) per share: Basic $ 0.30 $ 0.02 $ (1.13 ) $ (0.18 ) Diluted $ 0.30 $ 0.02 $ (1.13 ) $ (0.18 ) Shares used to compute earnings (loss) per share: Basic 32,482 32,609 32,605 32,614 Diluted 32,628 32,746 32,605 32,614

Summary Of Significant Accoun46

Summary Of Significant Accounting Policies (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Sep. 30, 2015	Mar. 31, 2009	Dec. 31, 2016		Dec. 31, 2015		Dec. 31, 2014	Dec. 31, 2013
Summary Of Significant Accounting Policies [Line Items]
Effect of Adoption on Share-Based Compensation			$ 1,100		$ 300
Foreign Income Tax Expense (Benefit), Continuing Operations			13,300
Interest Costs Capitalized			300		400		$ 1,100
Foreign Currency Transaction Gain (Loss), before Tax			3,600		(4,000)		(1,500)
Cash and cash equivalents			$ 29,511	[1]	44,156	[1]	50,056	$ 52,617
Investments, percentage of voting ownership interest			50.00%
Goodwill, Impairment Loss			$ 0		$ 44,465		$ 0
Incremental shares excluded from the calculation of incremental shares attributable to stock options and restricted stock			128,200		881,513		320,849
Foreign Country
Summary Of Significant Accounting Policies [Line Items]
Cash and cash equivalents			$ 23,800		$ 27,700
Minimum | Buildings And Land Improvements
Summary Of Significant Accounting Policies [Line Items]
Average useful life			5 years
Minimum | Machinery and Equipment
Summary Of Significant Accounting Policies [Line Items]
Average useful life			2 years
Maximum | Buildings And Land Improvements
Summary Of Significant Accounting Policies [Line Items]
Average useful life			40 years
Maximum | Machinery and Equipment
Summary Of Significant Accounting Policies [Line Items]
Average useful life			20 years
Flexible Packaging Films [Member] [Domain]
Summary Of Significant Accounting Policies [Line Items]
Goodwill, Impairment Loss	$ 44,500		$ 0		$ 44,465		$ 0
Goodwill, Impairment Loss, Net of Tax	$ 44,500
Aluminum Extrusions
Summary Of Significant Accounting Policies [Line Items]
Goodwill, Impairment Loss		$ 30,600
PE Films [Member]
Summary Of Significant Accounting Policies [Line Items]
Goodwill Fair Value in Excess of NBV			30.00%
Surface protection films
Summary Of Significant Accounting Policies [Line Items]
Goodwill Fair Value in Excess of NBV			48.00%
Flexible Packaging Films [Member]
Summary Of Significant Accounting Policies [Line Items]
Indefinite Lived Intangibles Fair Value in Excess of NBV			20.00%
[1]	Information on exports and foreign operations are provided on the previous page. Cash and cash equivalents includes funds held in locations outside the U.S. of $23.8 million and $27.7 million at December 31, 2016 and 2015, respectively. Export sales relate almost entirely 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.

Summary Of Significant Accoun47

Summary Of Significant Accounting Policies (Schedule Of Diluted Earnings Per Share Computed Using Weighted Average Common And Potentially Dilutive Common Equivalent Shares Outstanding) (Details) - shares	3 Months Ended								12 Months Ended
	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Accounting Policies [Abstract]
Weighted average shares outstanding used to compute basic earnings per share	32,856,000	32,818,000	32,716,000	32,654,000	32,614,000	32,605,000	32,609,000	32,482,000	32,761,793	32,578,116	32,302,108
Incremental shares attributable to stock options and restricted stock									13,279	0	251,746
Shares used to compute diluted earnings per share	32,900,000	32,828,000	32,716,000	32,654,000	32,614,000	32,605,000	32,746,000	32,628,000	32,775,072	32,578,116	32,553,854

Summary Of Significant Accoun48

Summary Of Significant Accounting Policies (Schedule Of Assumptions For Valuing Stock Options Granted) (Details) - $ / shares	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Dividend yield			1.30%
Weighted average volatility percentage			43.50%
Weighted average risk-free interest rate			2.00%
Weighted average exercise price at date of grant (also weighted average market price at date of grant):	$ 0	$ 0	$ 22.41
Officers
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Holding period (years):			6 years
Weighted average exercise price at date of grant (also weighted average market price at date of grant):			$ 22.49
Management
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Holding period (years):			5 years
Weighted average exercise price at date of grant (also weighted average market price at date of grant):			$ 22.33

Summary Of Significant Accoun49

Summary Of Significant Accounting Policies (Schedule Of Stock Options Granted And Related Estimated Fair Value At Date Of Grant) (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Stock options granted (number of shares):
Stock options granted (number of shares)	0	0	181,476
Estimated weighted average fair value of options per share at date of grant:
Total estimated fair value of stock options granted			$ 1,521
Officers
Stock options granted (number of shares):
Stock options granted (number of shares)			87,820
Estimated weighted average fair value of options per share at date of grant:
Estimated weighted average fair value of options per share at date of grant			$ 9.21
Management
Stock options granted (number of shares):
Stock options granted (number of shares)			93,656
Estimated weighted average fair value of options per share at date of grant:
Estimated weighted average fair value of options per share at date of grant			$ 7.60

Summary of Significant Accoun50

Summary of Significant Accounting Policies (Schedule of Accumulated Other Comprehensive Income (loss)) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning balance	$ (208,719)	$ (150,195)
Other comprehensive income (loss) before reclassifications	15,796	(70,934)
Amounts reclassified from accumulated other comprehensive income (loss)	9,689	12,410
Other comprehensive income (loss)	25,485	(58,524)	$ (59,907)
Ending balance	(183,234)	(208,719)	(150,195)
Foreign currency translation adjustment
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning balance	(112,807)	(47,270)
Other comprehensive income (loss) before reclassifications	18,837	(65,537)
Amounts reclassified from accumulated other comprehensive income (loss)	0	0
Other comprehensive income (loss)	18,837	(65,537)
Ending balance	(93,970)	(112,807)	(47,270)
Gain (loss) on derivative financial instruments
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning balance	(373)	656
Other comprehensive income (loss) before reclassifications	247	(3,221)
Amounts reclassified from accumulated other comprehensive income (loss)	989	2,192
Other comprehensive income (loss)	1,236	(1,029)
Ending balance	863	(373)	656
Pension and other post-retirement benefit adjustments
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning balance	(95,539)	(103,581)
Other comprehensive income (loss) before reclassifications	(3,288)	(2,176)
Amounts reclassified from accumulated other comprehensive income (loss)	8,700	10,218
Other comprehensive income (loss)	5,412	8,042
Ending balance	$ (90,127)	$ (95,539)	$ (103,581)

Summary of Significant Accoun51

Summary of Significant Accounting Policies (Schedule of Reclassifications Out of AOCI) (Details) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2016		Dec. 31, 2015		Dec. 31, 2014
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Cost of goods sold		$ (668,626)		$ (725,459)		$ (778,113)
Income taxes	[1]	3,217		8,928		9,387
Gain (loss) on derivative financial instruments | Reclassification out of Accumulated Other Comprehensive Income
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Total, before taxes		(1,568)		(3,476)		647
Income taxes		(579)		(1,284)		244
Total, net of tax		(989)		(2,192)		403
Pension and other post-retirement benefit adjustments | Reclassification out of Accumulated Other Comprehensive Income
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Actuarial gain (loss) and prior service costs, before taxes		(13,098)	[2]	(16,041)	[2]	(10,579)
Income taxes		(4,398)		(5,823)		(3,582)
Total, net of tax		(8,700)		(10,218)		(6,997)
Aluminum Futures Contracts | Gain (loss) on derivative financial instruments | Reclassification out of Accumulated Other Comprehensive Income
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Cost of goods sold		(1,630)		(3,538)		(631)
Foreign Currency Forward Contracts | Gain (loss) on derivative financial instruments | Reclassification out of Accumulated Other Comprehensive Income
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Cost of goods sold		$ 62		$ 62		$ (16)
[1]	See Notes 1, 3, 4 and 18 for more information on losses associated with plant shutdowns, asset impairments and restructurings, unusual items, gains or losses from sale of assets, gains or losses on an investment accounted for under the fair value method and other items.
[2]	{F|ahBzfndlYmZpbGluZ3MtaHJkcmoLEgZYTUxEb2MiXlhCUkxEb2NHZW5JbmZvOjliMzMyMGRmYmY2YzQwMGE4YzQ5ZmRlMjg2YmQ4ODlkfFRleHRTZWxlY3Rpb246NDE2NkMyNkFFRDM1RUY2OTUxQ0YxMDJDNzY1NjdDNDgM}

Subsequent Events (Details)

Subsequent Events (Details) $ in Millions	Feb. 15, 2017USD ($)
Subsequent Event [Line Items]
Payments to Acquire Businesses, Gross	$ 92
Futura [Member]
Subsequent Event [Line Items]
Sale of Stock, Percentage of Ownership after Transaction	100.00%

Acquisitions (Narratives) (Deta

Acquisitions (Narratives) (Details) - USD ($) $ in Thousands	Feb. 15, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Business Acquisition [Line Items]
Total purchase price	$ 92,000
Sales		$ 204,772	$ 207,702	$ 208,533	$ 207,333	$ 216,989	$ 223,772	$ 221,245	$ 234,171	$ 828,341	$ 896,177	$ 951,826
Net income from continuing operations										$ 24,466	$ (32,135)	$ 36,029

Discontinued Operations (Detail

Discontinued Operations (Details) - USD ($) $ in Thousands	Feb. 12, 2008	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from sale of business		$ 0	$ 0	$ 4,500
Aluminum Extrusions Canada Business
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from sale of business	$ 25,000
Accrual for indemnifications under the purchase agreement related to environmental matters				(900)
Accrual for indemnifications under the purchase agreement related to environmental matters, net of tax				$ (900)

Investments (Narrative) (Detail

Investments (Narrative) (Details) - USD ($)		Apr. 02, 2007	Dec. 31, 2016	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2008
Investments, Other Investments [Line Items]
Gain (loss) on investment accounted for under the fair value method				$ 1,600,000	$ (20,500,000)	$ 2,000,000
kaleo
Investments, Other Investments [Line Items]
Effect of Excluding Gain on Contract Termination from Expenses and Other, Net				$ 89.6
Total cash invested in private company								$ 7,500,000
Ownership interest percentage				19.00%
Gain (loss) on investment accounted for under the fair value method	[1]			$ 1,600,000	(20,500,000)	2,000,000
Unrealized gain (loss) on investments, net of tax				$ 1,200,000	$ (15,700,000)	$ 1,000,000
Fair Value Inputs, Discount Rate						45.00%	55.00%
Weighted average cost of capital			45.00%	45.00%	45.00%
Basis point decrease of weighted average cost of capital assumption			5.00%	5.00%
Increase in fair value from five hundred point decrease in weighted average cost of capital assumption			$ 6,000,000	$ 6,000,000
Basis point increase of weighted average cost of capital assumption			5.00%	5.00%
Decrease in fair value from five hundred point increase in weighted average cost of capital assumption			$ 5,000,000	$ 5,000,000
Harbinger
Investments, Other Investments [Line Items]
Total cash invested in private company		$ 10,000,000
Unrealized loss on investments under fair value method, other than temporary impairment						$ 800,000
Unrealized loss on investments, net of tax						400,000
Withdrawal proceeds				0	$ 100,000	200,000
Maximum | Harbinger
Investments, Other Investments [Line Items]
Percent ownership in investment (less than)		1.00%
Other Assets and Deferred Charges [Member] | kaleo
Investments, Other Investments [Line Items]
Carrying value			20,200,000	20,200,000	18,600,000
Other Assets and Deferred Charges [Member] | Harbinger
Investments, Other Investments [Line Items]
Carrying value of investment			1,700,000	1,700,000	1,700,000
Other Assets and Deferred Charges [Member] | Alleghany and Bath County, Virginia
Investments, Other Investments [Line Items]
Carrying value of investment			1,600,000	1,600,000	2,600,000
Alleghany and Bath County, Virginia
Investments, Other Investments [Line Items]
Gain (loss) on investment accounted for under the fair value method			1,000,000	1,032,000
Gain (Loss) on Disposition of Assets				0	0	1,208,000
Unrealized Gain (Loss) on Investment Property				(1,032,000)	$ 0	0
Unrealized Gain Loss On Investment Property After Tax			$ (700,000)	$ (700,000)
Gain (Loss) on Sale of Investment Property, After Tax						$ 800,000
[1]	See Notes 1, 3, 4 and 18 for more information on losses associated with plant shutdowns, asset impairments and restructurings, unusual items, gains or losses from sale of assets, gains or losses on an investment accounted for under the fair value method and other items.

Investments (Schedule Of Fair V

Investments (Schedule Of Fair Value Method Investments, Balance Sheets And Income Statements) (Details) - USD ($)		3 Months Ended										12 Months Ended
		Dec. 31, 2016		Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015		Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2016		Dec. 31, 2015		Dec. 31, 2014	Dec. 31, 2013
Assets
Cash and cash equivalents		$ 29,511,000	[1]				$ 44,156,000	[1]				$ 29,511,000	[1]	$ 44,156,000	[1]	$ 50,056,000	$ 52,617,000
Net property, plant and equipment		260,725,000					231,315,000					260,725,000		231,315,000
Other assets and deferred charges		30,790,000					27,869,000					30,790,000		27,869,000
Total assets	[1]	651,162,000					623,260,000					651,162,000		623,260,000
Liabilities and Shareholders’ Equity
Other noncurrent liabilities		95,000,000					104,000,000					95,000,000		104,000,000
Equity		310,783,000					272,748,000					310,783,000		272,748,000		372,029,000	$ 402,664,000
Total liabilities and shareholders’ equity		651,162,000					623,260,000					651,162,000		623,260,000
Revenues & Expenses:
Cost of goods sold												668,626,000		725,459,000		778,113,000
Income tax (expense) benefit	[2]											(3,217,000)		(8,928,000)		(9,387,000)
Net income (loss)		1,728,000		$ 12,048,000	$ 3,408,000	$ 7,281,000	(5,876,000)		$ (36,723,000)	$ 594,000	$ 9,870,000	24,466,000		(32,135,000)		36,879,000
kaleo
Assets
Cash and cash equivalents		102,329,000					91,844,000					102,329,000		91,844,000
Restricted cash		31,000					8,182,000					31,000		8,182,000
Other current assets		15,391,000					9,070,000					15,391,000		9,070,000
Net property, plant and equipment		13,011,000					8,453,000					13,011,000		8,453,000
Other assets and deferred charges		472,000					2,903,000					472,000		2,903,000
Total assets		131,234,000					120,452,000					131,234,000		120,452,000
Liabilities and Shareholders’ Equity
Current liabilities		50,134,000					10,261,000					50,134,000		10,261,000
Liabilities, Other than Long-term Debt, Noncurrent		822,000					552,000					822,000		552,000
Other noncurrent liabilities		143,380,000					142,696,000					143,380,000		142,696,000
Equity		(63,102,000)					(33,057,000)					(63,102,000)		(33,057,000)
Total liabilities and shareholders’ equity		$ 131,234,000					$ 120,452,000					131,234,000		120,452,000
Revenues & Expenses:
Revenues												56,188,000		35,731,000		21,156,000
Cost of goods sold												15,428,000		14,147,000		3,801,000
Expenses and other, net												71,548,000		63,042,000		48,447,000
Income tax (expense) benefit												(35,000)		(481,000)		8,100,000
Net income (loss)												(30,823,000)		(41,939,000)		(22,992,000)
Effect of Excluding Gain on Contract Termination from Expenses and Other, Net												89.6
Harbinger Capital Partners Special Situations Fund L P [Member]
Investments, Other Investments [Line Items]
Total Withdrawal Proceeds Received												$ 0		$ 100,000		$ 200,000
[1]	Information on exports and foreign operations are provided on the previous page. Cash and cash equivalents includes funds held in locations outside the U.S. of $23.8 million and $27.7 million at December 31, 2016 and 2015, respectively. Export sales relate almost entirely 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.
[2]	See Notes 1, 3, 4 and 18 for more information on losses associated with plant shutdowns, asset impairments and restructurings, unusual items, gains or losses from sale of assets, gains or losses on an investment accounted for under the fair value method and other items.

Business Segments (Narrative) (

Business Segments (Narrative) (Details) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Segment Reporting Information [Line Items]
Net Sales	[1],[2]	$ 799,272	$ 866,339	$ 923,033
PE Films [Member]
Segment Reporting Information [Line Items]
Net Sales		331,146	385,550	464,339
PE Films [Member] | The Procter And Gamble Company
Segment Reporting Information [Line Items]
Net Sales		$ 129,100	$ 163,900	$ 220,800
[1]	Information on exports and foreign operations are provided on the previous page. Cash and cash equivalents includes funds held in locations outside the U.S. of $23.8 million and $27.7 million at December 31, 2016 and 2015, respectively. Export sales relate almost entirely 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.
[2]	The difference between total consolidated sales as reported in the consolidated statements of income and segment, geographic and product group net sales reported in this note is freight of $29.1 million in 2016, $29.8 million in 2015 and $28.8 million in 2014.

Business Segments (Schedule Of

Business Segments (Schedule Of Segment Reporting Information By Segment) (Details) - USD ($) $ in Thousands		3 Months Ended											12 Months Ended
		Dec. 31, 2016		Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015		Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Mar. 31, 2009	Dec. 31, 2016		Dec. 31, 2015		Dec. 31, 2014	Dec. 31, 2013
Revenue from External Customer [Line Items]
Total net sales	[1],[2]												$ 799,272		$ 866,339		$ 923,033
Add back freight													29,069		29,838		28,793
Sales as shown in consolidated statements of income		$ 204,772		$ 207,702	$ 208,533	$ 207,333	$ 216,989		$ 223,772	$ 221,245	$ 234,171		828,341		896,177		951,826
Goodwill, Impairment Loss													0		(44,465)		0
Total													60,323		34,622		69,915
Interest income													261		294		588
Interest expense													3,806		3,502		2,713
Gain (loss) on investment accounted for under the fair value method													1,600		(20,500)		2,000
Stock option-based compensation expense													56		483		1,272
Corporate expenses, net	[3]												29,607		33,638		24,310
Income (loss) from continuing operations before income taxes													27,683		(23,207)		45,416
Income taxes	[3]												3,217		8,928		9,387
Income (loss) from continuing operations													24,466		(32,135)		36,029
Income (loss) from discontinued operations	[3]												0		0		850
Net income (loss)		1,728		$ 12,048	$ 3,408	$ 7,281	(5,876)		(36,723)	$ 594	$ 9,870		24,466		(32,135)		36,879
Freight													29,069		29,838		28,793
Cash and cash equivalents		29,511	[1]				44,156	[1]					29,511	[1]	44,156	[1]	50,056	$ 52,617
Foreign Country
Revenue from External Customer [Line Items]
Cash and cash equivalents		23,800					27,700						23,800		27,700
Pension Benefits
Revenue from External Customer [Line Items]
Defined benefit pension plan net liability		(88,567)					(93,210)						(88,567)		(93,210)
kaleo
Revenue from External Customer [Line Items]
Gain (loss) on investment accounted for under the fair value method	[3]												1,600		(20,500)		2,000
Income taxes													35		481		(8,100)
Net income (loss)													(30,823)		(41,939)		(22,992)
Cash and cash equivalents		102,329					$ 91,844						102,329		91,844
Alleghany and Bath County, Virginia
Revenue from External Customer [Line Items]
Gain (loss) on investment accounted for under the fair value method		$ 1,000											1,032
Gain (Loss) on Disposition of Assets													0		0		1,208
Unrealized Gain (Loss) on Investment Property													(1,032)		0		0
PE Films [Member]
Revenue from External Customer [Line Items]
Total net sales													331,146		385,550		464,339
Ongoing operations													26,312		48,275		60,971
Plant shutdowns, asset impairments, restructurings and other	[3]												(4,602)		(4,180)		(12,236)
Aluminum Extrusions
Revenue from External Customer [Line Items]
Total net sales													360,098		375,457		344,346
Ongoing operations													37,794		30,432		25,664
Plant shutdowns, asset impairments, restructurings and other	[3]												(741)		(708)		(976)
Goodwill, Impairment Loss												$ (30,600)
Flexible Packaging Films [Member] [Domain]
Revenue from External Customer [Line Items]
Total net sales													108,028		105,332		114,348
Ongoing operations													1,774		5,453		(2,917)
Plant shutdowns, asset impairments, restructurings and other	[3]												(214)		(185)		(591)
Goodwill, Impairment Loss									$ (44,500)				$ 0		$ (44,465)		$ 0
[1]	Information on exports and foreign operations are provided on the previous page. Cash and cash equivalents includes funds held in locations outside the U.S. of $23.8 million and $27.7 million at December 31, 2016 and 2015, respectively. Export sales relate almost entirely 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.
[2]	The difference between total consolidated sales as reported in the consolidated statements of income and segment, geographic and product group net sales reported in this note is freight of $29.1 million in 2016, $29.8 million in 2015 and $28.8 million in 2014.
[3]	See Notes 1, 3, 4 and 18 for more information on losses associated with plant shutdowns, asset impairments and restructurings, unusual items, gains or losses from sale of assets, gains or losses on an investment accounted for under the fair value method and other items.

Business Segments (Schedule O59

Business Segments (Schedule Of Identifiable Assets) (Details) - USD ($) $ in Thousands		Dec. 31, 2016		Dec. 31, 2015		Dec. 31, 2014	Dec. 31, 2013
Revenue from External Customer [Line Items]
Identifiable Assets, Total	[1]	$ 651,162		$ 623,260
Cash and cash equivalents		29,511	[1]	44,156	[1]	$ 50,056	$ 52,617
PE Films [Member]
Revenue from External Customer [Line Items]
Identifiable Assets, Total		278,558		270,236
Flexible Packaging Films [Member] [Domain]
Revenue from External Customer [Line Items]
Identifiable Assets, Total		156,836		146,253
General Corporate
Revenue from External Customer [Line Items]
Identifiable Assets, Total	[1],[2]	38,618		25,680
Subtotal
Revenue from External Customer [Line Items]
Identifiable Assets, Total		583,033		553,424
Aluminum Extrusions
Revenue from External Customer [Line Items]
Identifiable Assets, Total		$ 147,639		$ 136,935
[1]	Information on exports and foreign operations are provided on the previous page. Cash and cash equivalents includes funds held in locations outside the U.S. of $23.8 million and $27.7 million at December 31, 2016 and 2015, respectively. Export sales relate almost entirely 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.
[2]	The balance sheets include the funded status of each of the Company’s defined benefit pension and other postretirement plans. The funded status of the Company’s defined benefit pension plan was a net liability of $88.6 million and $93.2 million as of December 31, 2016 and 2015, respectively. See Note 14 for more information on the Company’s pension and other postretirement plans.

Business Segments (Schedule O60

Business Segments (Schedule Of Depreciation And Amortization, Capital Expenditures) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Segment Reporting Information [Line Items]
Depreciation and Amortization	$ 32,472	$ 34,982	$ 40,818
Capital Expenditures	45,457	32,831	44,898
PE Films [Member]
Segment Reporting Information [Line Items]
Depreciation and Amortization	13,653	15,480	21,399
Capital Expenditures	25,759	21,218	17,000
Flexible Packaging Films [Member] [Domain]
Segment Reporting Information [Line Items]
Depreciation and Amortization	9,505	9,697	9,331
Capital Expenditures	3,391	3,489	21,806
Aluminum Extrusions
Segment Reporting Information [Line Items]
Depreciation and Amortization	9,173	9,698	9,974
Capital Expenditures	15,918	8,124	6,092
Subtotal
Segment Reporting Information [Line Items]
Depreciation and Amortization	32,331	34,875	40,704
Capital Expenditures	45,068	32,831	44,898
General Corporate
Segment Reporting Information [Line Items]
Depreciation and Amortization	141	107	114
Capital Expenditures	$ 389	$ 0	$ 0

Business Segments (Schedule O61

Business Segments (Schedule Of Net Sales By Geographic Area) (Details) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Segment Reporting Information [Line Items]
Net Sales by Geographic Area, Total	[1],[2]	$ 799,272	$ 866,339	$ 923,033
United States
Segment Reporting Information [Line Items]
Net Sales by Geographic Area, Total	[1]	475,734	528,881	542,395
Exports From The United States | Asia
Segment Reporting Information [Line Items]
Net Sales by Geographic Area, Total	[1]	73,220	75,383	72,597
Exports From The United States | Canada
Segment Reporting Information [Line Items]
Net Sales by Geographic Area, Total	[1]	45,683	45,290	47,391
Exports From The United States | Europe
Segment Reporting Information [Line Items]
Net Sales by Geographic Area, Total	[1]	7,348	9,809	10,874
Exports From The United States | Latin America
Segment Reporting Information [Line Items]
Net Sales by Geographic Area, Total	[1]	5,561	3,464	3,116
Operations Outside The United States | Brazil
Segment Reporting Information [Line Items]
Net Sales by Geographic Area, Total	[1]	90,571	89,829	97,954
Operations Outside The United States | The Netherlands
Segment Reporting Information [Line Items]
Net Sales by Geographic Area, Total	[1]	54,352	53,211	74,329
Operations Outside The United States | Hungary
Segment Reporting Information [Line Items]
Net Sales by Geographic Area, Total	[1]	24,207	32,612	39,457
Operations Outside The United States | China
Segment Reporting Information [Line Items]
Net Sales by Geographic Area, Total	[1]	14,390	18,919	26,109
Operations Outside The United States | India
Segment Reporting Information [Line Items]
Net Sales by Geographic Area, Total	[1]	$ 8,206	$ 8,941	$ 8,811
[1]	Information on exports and foreign operations are provided on the previous page. Cash and cash equivalents includes funds held in locations outside the U.S. of $23.8 million and $27.7 million at December 31, 2016 and 2015, respectively. Export sales relate almost entirely 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.
[2]	The difference between total consolidated sales as reported in the consolidated statements of income and segment, geographic and product group net sales reported in this note is freight of $29.1 million in 2016, $29.8 million in 2015 and $28.8 million in 2014.

Business Segments (Schedule O62

Business Segments (Schedule Of Identifiable Assets By Geographic Area, Property, Plant & Equipment, Net By Geographic Area) (Details) - USD ($) $ in Thousands		Dec. 31, 2016		Dec. 31, 2015		Dec. 31, 2014	Dec. 31, 2013
Segment Reporting Information [Line Items]
Identifiable Assets by Geographic Area, Total	[1]	$ 651,162		$ 623,260
Cash and cash equivalents		29,511	[1]	44,156	[1]	$ 50,056	$ 52,617
Property, Plant & Equipment, Net by Geographic Area, Total		260,725		231,315
Property, Plant & Equipment, Net of Discontinued operations by Geographic Area, Total	[1]	260,725		231,315
United States
Segment Reporting Information [Line Items]
Identifiable Assets by Geographic Area, Total	[1],[2]	367,406		351,115
Property, Plant & Equipment, Net by Geographic Area, Total	[1],[2]	118,661		104,380
General Corporate
Segment Reporting Information [Line Items]
Identifiable Assets by Geographic Area, Total	[1],[2]	38,618		25,680
Property, Plant & Equipment, Net by Geographic Area, Total	[1],[2]	1,181		934
Operations Outside The United States | Brazil
Segment Reporting Information [Line Items]
Identifiable Assets by Geographic Area, Total	[1]	139,163		126,478
Property, Plant & Equipment, Net by Geographic Area, Total	[1]	91,553		78,845
Operations Outside The United States | The Netherlands
Segment Reporting Information [Line Items]
Identifiable Assets by Geographic Area, Total	[1]	19,484		19,372
Property, Plant & Equipment, Net by Geographic Area, Total	[1]	5,784		6,224
Operations Outside The United States | China
Segment Reporting Information [Line Items]
Identifiable Assets by Geographic Area, Total	[1]	29,751		34,409
Property, Plant & Equipment, Net by Geographic Area, Total	[1]	23,759		27,563
Operations Outside The United States | Hungary
Segment Reporting Information [Line Items]
Identifiable Assets by Geographic Area, Total	[1]	20,610		14,798
Property, Plant & Equipment, Net by Geographic Area, Total	[1]	15,117		8,135
Operations Outside The United States | India
Segment Reporting Information [Line Items]
Identifiable Assets by Geographic Area, Total	[1]	6,619		7,252
Property, Plant & Equipment, Net by Geographic Area, Total	[1]	$ 4,670		$ 5,234
[1]	Information on exports and foreign operations are provided on the previous page. Cash and cash equivalents includes funds held in locations outside the U.S. of $23.8 million and $27.7 million at December 31, 2016 and 2015, respectively. Export sales relate almost entirely 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.
[2]	The balance sheets include the funded status of each of the Company’s defined benefit pension and other postretirement plans. The funded status of the Company’s defined benefit pension plan was a net liability of $88.6 million and $93.2 million as of December 31, 2016 and 2015, respectively. See Note 14 for more information on the Company’s pension and other postretirement plans.

Business Segments (Schedule O63

Business Segments (Schedule Of Net Sales By Product Group) (Details) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Revenue from External Customer [Line Items]
Net Sales by Product Group	[1],[2]	$ 799,272	$ 866,339	$ 923,033
PE Films [Member]
Revenue from External Customer [Line Items]
Net Sales by Product Group		331,146	385,550	464,339
Flexible Packaging Films [Member] [Domain]
Revenue from External Customer [Line Items]
Net Sales by Product Group		108,028	105,332	114,348
Aluminum Extrusions
Revenue from External Customer [Line Items]
Net Sales by Product Group		360,098	375,457	344,346
Personal Care Materials [Member] | PE Films [Member]
Revenue from External Customer [Line Items]
Net Sales by Product Group		238,213	287,768	367,451
Surface protection films | PE Films [Member]
Revenue from External Customer [Line Items]
Net Sales by Product Group		84,013	90,197	90,129
LED lighting products & other films | PE Films [Member]
Revenue from External Customer [Line Items]
Net Sales by Product Group		8,920	7,585	6,759
Subtotal | PE Films [Member]
Revenue from External Customer [Line Items]
Net Sales by Product Group		331,146	385,550	464,339
Nonresidential building & construction | Aluminum Extrusions
Revenue from External Customer [Line Items]
Net Sales by Product Group		212,863	221,363	200,707
Consumer durables | Aluminum Extrusions
Revenue from External Customer [Line Items]
Net Sales by Product Group		39,293	41,835	44,897
Residential building & construction | Aluminum Extrusions
Revenue from External Customer [Line Items]
Net Sales by Product Group		20,252	22,737	21,470
Machinery and Equipment | Aluminum Extrusions
Revenue from External Customer [Line Items]
Net Sales by Product Group		20,872	18,102	26,907
Automotive | Aluminum Extrusions
Revenue from External Customer [Line Items]
Net Sales by Product Group		34,700	30,250	22,272
Distribution | Aluminum Extrusions
Revenue from External Customer [Line Items]
Net Sales by Product Group		20,506	18,659	15,318
Electrical | Aluminum Extrusions
Revenue from External Customer [Line Items]
Net Sales by Product Group		11,612	22,511	12,775
Subtotal | Aluminum Extrusions
Revenue from External Customer [Line Items]
Net Sales by Product Group		$ 360,098	$ 375,457	$ 344,346
[1]	Information on exports and foreign operations are provided on the previous page. Cash and cash equivalents includes funds held in locations outside the U.S. of $23.8 million and $27.7 million at December 31, 2016 and 2015, respectively. Export sales relate almost entirely 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.
[2]	The difference between total consolidated sales as reported in the consolidated statements of income and segment, geographic and product group net sales reported in this note is freight of $29.1 million in 2016, $29.8 million in 2015 and $28.8 million in 2014.

Accounts And Other Receivable64

Accounts And Other Receivables (Schedule Of Accounts And Other Receivable) (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Accounts and Notes Receivable, Net [Abstract]
Trade, less allowance for doubtful accounts and sales returns of $3,102 in 2016 and $3,746 in 2015	$ 91,109	$ 90,028
Other	6,279	4,189
Total	97,388	94,217
Allowance for Doubtful Accounts and Sales Returns	$ 3,102	$ 3,746

Accounts And Other Receivable65

Accounts And Other Receivables (Schedule Of Reconciliation Of The Beginning And Ending Balances Of The Allowance For Doubtful Accounts And Sales Returns) (Details) - Allowance For Doubtful Accounts - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Allowance for Doubtful Accounts Receivable [Roll Forward]
Balance, beginning of year	$ 3,746	$ 2,610	$ 3,327
Charges to expense	1,410	3,387	1,344
Recoveries	(32)	(7)	(1,654)
Write-offs and settlements	(2,167)	(1,970)	(153)
Foreign exchange and other	145	(274)	(254)
Balance, end of year	$ 3,102	$ 3,746	$ 2,610

Inventories (Narrative) (Detail

Inventories (Narrative) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Inventories [Line Items]
Inventories stated on the LIFO basis	$ 16.4	$ 13.5
Inventories stated value below replacement costs	15.3	13.4
PE Films [Member]
Inventories [Line Items]
Cost of goods sold stated at below current replacement costs	$ (0.9)	$ 0.4	$ 1

Inventories (Schedule Of Invent

Inventories (Schedule Of Inventories) (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Inventory, Net [Abstract]
Finished goods	$ 16,215	$ 13,935
Work-in-process	8,590	9,249
Raw materials	23,733	22,149
Stores, supplies and other	17,531	19,992
Total	$ 66,069	$ 65,325

Goodwill And Other Intangible68

Goodwill And Other Intangible Assets (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Sep. 30, 2015	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Goodwill [Line Items]
Goodwill impairment charge		$ 0	$ 44,465	$ 0
Goodwill		117,822	117,839	169,687
Flexible Packaging Films [Member] [Domain]
Goodwill [Line Items]
Goodwill impairment charge	$ 44,500	0	44,465	0
Goodwill, Impairment Loss, Net of Tax	$ 44,500
Goodwill		$ 0	$ 0	$ 51,831

Goodwill And Other Intangible69

Goodwill And Other Intangible Assets (Schedule Of Goodwill And Other Intangibles) (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Sep. 30, 2015	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Goodwill And Other Intangible Assets [Line Items]
Goodwill, Impairment Loss		$ 0	$ 44,465	$ 0
Goodwill		117,822	117,839	169,687
Identifiable intangible assets:
Total carrying value of other intangibles		33,601	35,233
Intangible Assets, Net (Including Goodwill)		151,423	153,072
Customer relationships
Identifiable intangible assets:
Other identifiable intangibles		14,844	15,620
Finite-Lived Intangible Assets, Gross		26,021	23,766
Proprietary technology
Identifiable intangible assets:
Other identifiable intangibles		7,582	9,037
Finite-Lived Intangible Assets, Gross		17,366	16,738
Noncompete agreements
Identifiable intangible assets:
Finite-Lived Intangible Assets, Gross		4,154	4,154
Trade names
Identifiable intangible assets:
Trade names		$ 11,175	10,576
Minimum | Customer relationships
Identifiable intangible assets:
Identifiable Intangible Asset, Useful Life (Yrs)		10 years
Maximum | Customer relationships
Identifiable intangible assets:
Identifiable Intangible Asset, Useful Life (Yrs)		12 years
Maximum | Proprietary technology
Identifiable intangible assets:
Identifiable Intangible Asset, Useful Life (Yrs)		15 years
Flexible Packaging Films [Member] [Domain]
Goodwill And Other Intangible Assets [Line Items]
Goodwill, Impairment Loss	$ 44,500	$ 0	44,465	0
Goodwill		$ 0	$ 0	$ 51,831
Identifiable intangible assets:
Goodwill, Impairment Loss, Net of Tax	$ 44,500

Goodwill And Other Intangible70

Goodwill And Other Intangible Assets (Reconciliation Of The Beginning And Ending Balance Of Goodwill) (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Sep. 30, 2015	Mar. 31, 2009	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Goodwill [Roll Forward]
Goodwill, Impairment Loss			$ 0	$ (44,465)	$ 0
Net carrying value of goodwill, beginning of period			117,839	169,687
Increase (decrease) due to foreign currency translation			(17)	(7,383)
Net carrying value of goodwill, end of period			117,822	117,839	169,687
Aluminum Extrusions
Goodwill [Roll Forward]
Goodwill, Impairment Loss		$ (30,600)
Net carrying value of goodwill, beginning of period			13,696	13,696
Increase (decrease) due to foreign currency translation			0	0
Net carrying value of goodwill, end of period			13,696	13,696	13,696
PE Films [Member]
Goodwill [Roll Forward]
Net carrying value of goodwill, beginning of period			104,143	104,160
Increase (decrease) due to foreign currency translation			(17)	(17)
Net carrying value of goodwill, end of period			104,126	104,143	104,160
Flexible Packaging Films [Member] [Domain]
Goodwill [Roll Forward]
Goodwill, Impairment Loss	$ (44,500)		0	(44,465)	0
Net carrying value of goodwill, beginning of period			0	51,831
Increase (decrease) due to foreign currency translation			0	(7,366)
Net carrying value of goodwill, end of period			$ 0	$ 0	$ 51,831

Goodwill And Other Intangible71

Goodwill And Other Intangible Assets (Schedule of Expected Amortization Expense) (Details) $ in Thousands	Dec. 31, 2016USD ($)
Goodwill and Intangible Assets Disclosure [Abstract]
2,017	$ 4,007
2,018	3,873
2,019	3,473
2,020	3,473
2,021	$ 3,360

Financial Instruments (Narrativ

Financial Instruments (Narrative) (Details) lb in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2016USD ($)lb	Dec. 31, 2015USD ($)lb
Derivative [Line Items]
Weight of aluminum that hedged future purchase of aluminum to meet fixed-price forward sales contract obligations, lbs | lb	9.6	18.9
Amounts of unrealized after-tax gains on derivative instruments	$ 0.2
Aluminum Futures Contracts
Derivative [Line Items]
Notional amount	$ 8	$ 16.6

Financial Instruments (Summary

Financial Instruments (Summary Of Location And Fair Value Of Derivative Financial Instruments) (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Derivatives, Fair Value [Line Items]
Net asset (liability)	$ 0	$ (1,753)
Aluminum Futures Contracts | Designated as Hedging Instrument | Prepaid Expenses and Other Current Assets [Member]
Derivatives, Fair Value [Line Items]
Asset derivatives	308
Liability derivatives: Aluminum futures contracts	(37)
Net asset (liability)	271
Aluminum Futures Contracts | Designated as Hedging Instrument | Accrued Expenses
Derivatives, Fair Value [Line Items]
Asset derivatives		44
Liability derivatives: Aluminum futures contracts		(1,797)
Net asset (liability)		(1,753)
Aluminum Futures Contracts | Not Designated as Hedging Instrument [Member] | Prepaid Expenses and Other Current Assets [Member]
Derivatives, Fair Value [Line Items]
Liability derivatives: Aluminum futures contracts	$ 0
Aluminum Futures Contracts | Not Designated as Hedging Instrument [Member] | Accrued Expenses
Derivatives, Fair Value [Line Items]
Asset derivatives		0
Liability derivatives: Aluminum futures contracts		$ 0

Financial Instruments (Schedule

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	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Foreign Currency Forwards And Options [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of pre-tax gain (loss) recognized in other comprehensive income	$ 0		$ (120)
Foreign Currency Forwards And Options [Member] | Cost of Sales
Derivative Instruments, Gain (Loss) [Line Items]
Amount of pre-tax gain (loss) reclassified from accumulated other comprehensive income to net income (effective portion)	62	$ 62	16
Aluminum Futures Contracts
Derivative Instruments, Gain (Loss) [Line Items]
Amount of pre-tax gain (loss) recognized in other comprehensive income	394	(5,055)	542
Aluminum Futures Contracts | Cost of Sales
Derivative Instruments, Gain (Loss) [Line Items]
Amount of pre-tax gain (loss) reclassified from accumulated other comprehensive income to net income (effective portion)	$ (1,630)	$ (3,538)	$ 631

Accrued Expenses (Schedule Of A

Accrued Expenses (Schedule Of Accrued Expenses) (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Accrued Liabilities [Abstract]
Accrued Environmental Loss Contingencies, Current	$ 2,100	$ 1,713
Vacation	8,254	7,155
Payrolls, related taxes and medical and other benefits	5,519	4,762
Incentive compensation	5,530	3,883
Workers’ compensation and disabilities	3,732	3,036
Accrued Utilities, Current	2,126	2,048
Accrued Customer Rebates	842	2,032
Other	6,956	4,252
Total	38,647	33,653
Accrued Severance Liability	1,976	1,908
Accrued Freight	1,612	1,111
Derivative Assets (Liabilities), at Fair Value, Net	$ 0	$ 1,753

Accrued Expenses (Schedule Of R

Accrued Expenses (Schedule Of Reconciliation Of Beginning And Ending Balances Of Accrued Expenses Associated With Asset Impairments And Costs Associated With Exit And Disposal Activities) (Details) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Restructuring Cost and Reserve [Line Items]
Accrued Freight		$ 1,612	$ 1,111
Restructuring Reserve [Roll Forward]
Beginning balance		1,867	447	$ 687
Charges		2,684	3,850	3,026
Cash spend		(1,540)	(2,027)	(3,039)
Charges against assets		(603)	(403)	(227)
Ending balance		2,408	1,867	447
Severance
Restructuring Reserve [Roll Forward]
Beginning balance		1,462	246	331
Charges		1,535	2,568	2,668
Cash spend		(1,143)	(1,352)	(2,753)
Ending balance		1,854	1,462	246
Asset Impairments
Restructuring Reserve [Roll Forward]
Beginning balance		0	0	0
Charges		603	403	227
Charges against assets		(603)	(403)	(227)
Ending balance		0	0	0
Other
Restructuring Reserve [Roll Forward]
Beginning balance	[1]	405	201	356
Charges	[1]	546	879	131
Cash spend	[1]	(397)	(675)	(286)
Ending balance	[1]	$ 554	$ 405	$ 201
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Debt And Credit Agreements (Nar

Debt And Credit Agreements (Narrative) (Details)	9 Months Ended	12 Months Ended
	Sep. 30, 2016	Dec. 31, 2016USD ($)	Mar. 01, 2016USD ($)	Apr. 23, 2012USD ($)
Line of Credit Facility [Line Items]
Credit spread over LIBOR, basis points		1.75%
Available credit under the Credit Agreement		$ 185,000,000
Secured Revolving Credit Facility [Member]
Line of Credit Facility [Line Items]
Line of credit facility, maximum borrowing capacity			$ 400,000,000
Line Of Credit Facility Term	5 years
Line of credit facility, option to increase additional amount			50,000,000
Amount borrowed under the Credit Agreement			$ 107,000,000
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		2.50
Line of credit facility, covenant terms, maximum aggregate distributions		$ 100,000
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		$ 4,000,000
Credit Facility, covenants, 50% of net income limitation when leverage ratio exceeds 3.00x	50.00%
Credit Facility covenant three point five times leverage ratio		350.00%
Credit Facility fixed charge coverage one pt two ratio limitation		120.00%
Unsecured Revolving Credit Facility
Line of Credit Facility [Line Items]
Line of credit facility, maximum borrowing capacity				$ 350,000,000

Debt And Credit Agreements (Sch

Debt And Credit Agreements (Schedule Of Borrowings Under Credit Agreement At Various Indebtedness To Adjusted EBITDA Levels) (Details)	12 Months Ended
	Dec. 31, 2016	Mar. 01, 2016USD ($)
Line of Credit Facility [Line Items]
Credit Spread Over LIBOR	1.75%
Secured Revolving Credit Facility [Member]
Line of Credit Facility [Line Items]
Long-term Line of Credit		$ 107,000,000
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 LIBOR	2.50%
Commitment Fee	0.45%
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 LIBOR	2.25%
Commitment Fee	0.40%
Indebtedness-To-Adjusted EBITDA Ratio Greater Than 2.0x But Less Than Or Equal To 3.0x [Member]
Line of Credit Facility [Line Items]
Credit Spread Over LIBOR	2.00%
Commitment Fee	0.35%
Indebtedness-To-Adjusted EBITDA Ratio Greater Than 1.0x But Less Than Or Equal To 2.0x [Member]
Line of Credit Facility [Line Items]
Credit Spread Over LIBOR	1.75%
Commitment Fee	0.30%
Indebtedness-To-Adjusted EBITDA Ratio Less Than Or Equal To 1.0x [Member]
Line of Credit Facility [Line Items]
Indebtedness-to-Adjusted EBITDA Ratio	1
Credit Spread Over LIBOR	1.50%
Commitment Fee	0.25%
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]
Indebtedness-to-Adjusted 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]
Indebtedness-to-Adjusted EBITDA Ratio	3
Minimum | Indebtedness-To-Adjusted EBITDA Ratio Greater Than 2.0x But Less Than Or Equal To 3.0x [Member]
Line of Credit Facility [Line Items]
Indebtedness-to-Adjusted EBITDA Ratio	2
Minimum | Indebtedness-To-Adjusted EBITDA Ratio Greater Than 1.0x But Less Than Or Equal To 2.0x [Member]
Line of Credit Facility [Line Items]
Indebtedness-to-Adjusted 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]
Indebtedness-to-Adjusted 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]
Indebtedness-to-Adjusted EBITDA Ratio	3.5
Maximum | Indebtedness-To-Adjusted EBITDA Ratio Greater Than 2.0x But Less Than Or Equal To 3.0x [Member]
Line of Credit Facility [Line Items]
Indebtedness-to-Adjusted EBITDA Ratio	3
Maximum | Indebtedness-To-Adjusted EBITDA Ratio Greater Than 1.0x But Less Than Or Equal To 2.0x [Member]
Line of Credit Facility [Line Items]
Indebtedness-to-Adjusted EBITDA Ratio	2

Debt And Credit Agreements (Sum

Debt And Credit Agreements (Summary Of Total Debt Due And Outstanding) (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2016USD ($)
Maturities of Total Debt
2,020	$ 0
2,021	95,000
Total	95,000
Credit Agreement
Maturities of Total Debt
2,018	0
2,021	95,000
Total	$ 95,000
Secured Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Line of credit facility, covenant terms, maximum debt to EBITDA ratio	4

Shareholder Rights Agreement (N

Shareholder Rights Agreement (Narrative) (Details) - USD ($)	Feb. 19, 2014	Dec. 31, 2016	Dec. 31, 2015
Warrants and Rights Note Disclosure [Abstract]
Exercise price of participating cumulative preferred stock, per share		$ 150
Percentage of outstanding common stock shares to be acquired for exercise of rights (more than)		20.00%
Share-Based Compensation Arrangement by Share-based Payment Award, Price Per RIght Redeemed by Board of DIrectors in Event Agreement is Not Approved	$ 0.01
Shareholder Rights Redemption Payment			$ 323,000

Stock Option And Stock Award 81

Stock Option And Stock Award Plans (Narrative) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number	500,919	881,513	1,164,120	1,046,800
Options may be granted to purchase specified number of common shares under stock option plan, maximum term	10 years
The total intrinsic value of stock options exercised	$ 0.2	$ 1	$ 0.1
The grant-date fair value of stock option-based awards vested	$ 0.4	$ 1.9	$ 0.7
Stock options exercisable	453,067	771,000
Total stock options available for grant	2,748,000
Restricted Stock [Member]
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]
Option vesting period	3 years
Stock Option Based Awards [Member]
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Accelerated Vesting, Number	400,000
Unrecognized compensation cost	$ 0.1
Weighted average period for the cost expected to be recognized	7 months 6 days
Share-based Compensation Arrangement by Share-based Payment Award Accelerated Compensation Cost	$ 0.4
Non-Vested Restricted Stock And Other Stock-Based Awards
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Accelerated Vesting, Number	100,000
Unrecognized compensation cost	$ 1.6
Weighted average period for the cost expected to be recognized	1 year 7 months 6 days
Share-based Compensation Arrangement by Share-based Payment Award Accelerated Compensation Cost	$ 1
Granted In 2012 And Thereafter | Employee Options
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]
Option vesting period	4 years

Stock Option And Stock Award 82

Stock Option And Stock Award Plans (Summary Of Stock Options Outstanding) (Details) - $ / shares	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Number of Options
Number of Options, Outstanding, Beginning Balance	881,513	1,164,120	1,046,800
Number of Options, Granted	0	0	181,476
Number of Options, Forfeited and Expired	(246,394)	(60,207)	(22,581)
Number of Options, Exercised	(134,200)	(222,400)	(41,575)
Number of Options, Outstanding, Ending Balance	500,919	881,513	1,164,120
Weighted Average
Weighted Average Option Exercise Price/Share, Outstanding, Beginning Balance	$ 20.22	$ 19.59	$ 19.06
Weighted Average Option Exercise Price/Share, Granted	0	0	22.41
Weighted Average Option Exercise Price/Share, Forfeited and Expired	18.90	22.30	21.42
Weighted Average Option Exercise Price/Share, Exercised	17.23	16.34	17.55
Weighted Average Option Exercise Price/Share, Outstanding, Ending Balance	21.67	20.22	19.59
Minimum
Option Exercise Price/Share Range
Exercise Price, Outstanding, Beginning Balance	17.13	14.06	14.06
Exercise Price, Granted	0	0	19.84
Exercise Price, Forfeited and Expired	17.13	17.13	15.8
Exercise Price, Exercised	17.13	14.06	15.8
Exercise Price, Outstanding, Ending Balance	17.13	17.13	14.06
Maximum
Option Exercise Price/Share Range
Exercise Price, Outstanding, Beginning Balance	30.01	30.01	30.01
Exercise Price, Granted	0	0	22.49
Exercise Price, Forfeited and Expired	30.01	30.01	24.84
Exercise Price, Exercised	19.84	19.84	19.84
Exercise Price, Outstanding, Ending Balance	$ 30.01	$ 30.01	$ 30.01

Stock Option And Stock Award 83

Stock Option And Stock Award Plans (Summary Of Additional Information On Stock Options Outstanding And Exercisable) (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Options Outstanding, Shares	500,919
Options Outstanding, Weighted Average, Remaining Contractual Life (Years)	4 years 7 months 21 days
Options Outstanding, Weighted Average, Exercise Price	$ 21.67
Options Outstanding, Aggregate Intrinsic Value	$ 1,289,740
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number	453,067	771,000
Options Exercisable, Weighted Average Exercise Price	$ 21.50
Options Exercisable, Aggregate Intrinsic Value	$ 1,238,019
- To 15.00
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Range of Exercise Prices, Minimum	$ 0
Range of Exercise Prices, Maximum	$ 15
Options Outstanding, Shares	0
Options Outstanding, Weighted Average, Remaining Contractual Life (Years)	0 years
Options Outstanding, Weighted Average, Exercise Price	$ 0
Options Outstanding, Aggregate Intrinsic Value	$ 0
Options Exercisable, Shares	0
Options Exercisable, Weighted Average Exercise Price	$ 0
Options Exercisable, Aggregate Intrinsic Value	$ 0
15.01 To 17.00
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Range of Exercise Prices, Minimum	$ 15.01
Range of Exercise Prices, Maximum	$ 17.5
Options Outstanding, Shares	13,000
Options Outstanding, Weighted Average, Remaining Contractual Life (Years)	1 month 21 days
Options Outstanding, Weighted Average, Exercise Price	$ 17.13
Options Outstanding, Aggregate Intrinsic Value	$ 89,310
Options Exercisable, Shares	13,000
Options Exercisable, Weighted Average Exercise Price	$ 17.13
Options Exercisable, Aggregate Intrinsic Value	$ 89,310
17.51 To 20.00
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Range of Exercise Prices, Minimum	$ 17.51
Range of Exercise Prices, Maximum	$ 20
Options Outstanding, Shares	226,425
Options Outstanding, Weighted Average, Remaining Contractual Life (Years)	2 years 9 months 11 days
Options Outstanding, Weighted Average, Exercise Price	$ 19.59
Options Outstanding, Aggregate Intrinsic Value	$ 999,156
Options Exercisable, Shares	226,425
Options Exercisable, Weighted Average Exercise Price	$ 19.59
Options Exercisable, Aggregate Intrinsic Value	$ 999,156
20.01 To 25.00
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Range of Exercise Prices, Minimum	$ 20.01
Range of Exercise Prices, Maximum	$ 25
Options Outstanding, Shares	258,694
Options Outstanding, Weighted Average, Remaining Contractual Life (Years)	6 years 5 months 19 days
Options Outstanding, Weighted Average, Exercise Price	$ 23.63
Options Outstanding, Aggregate Intrinsic Value	$ 201,274
Options Exercisable, Shares	211,542
Options Exercisable, Weighted Average Exercise Price	$ 23.74
Options Exercisable, Aggregate Intrinsic Value	$ 149,553
25.01 To 30.01
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Range of Exercise Prices, Minimum	$ 25.01
Range of Exercise Prices, Maximum	$ 30.01
Options Outstanding, Shares	2,800
Options Outstanding, Weighted Average, Remaining Contractual Life (Years)	6 years 6 months 29 days
Options Outstanding, Weighted Average, Exercise Price	$ 30.01
Options Outstanding, Aggregate Intrinsic Value	$ 0
Options Exercisable, Shares	2,100
Options Exercisable, Weighted Average Exercise Price	$ 30.01
Options Exercisable, Aggregate Intrinsic Value	$ 0

Stock Option And Stock Award 84

Stock Option And Stock Award Plans (Summary Of Additional Information On Non-Vested Restricted Stock Outstanding) (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Number of Shares, Outstanding, Beginning Balance	132,353	188,058	157,850
Number of Shares, Granted	144,546	147,666	95,707
Number of Shares, Vested	(52,167)	(174,145)	(54,921)
Number of Shares, Forfeited	(17,377)	(29,226)	(10,578)
Number of Shares, Outstanding, Ending Balance	207,355	132,353	188,058
Wgtd. Ave. Grant Date Fair Value/Sh., Beginning Balance	$ 21.19	$ 22.48	$ 22
Wgtd. Ave. Grant Date Fair Value/Sh., Granted	13.47	18.87	22.18
Wgtd. Ave. Grant Date Fair Value/Sh., Vested	21.56	20.57	20.73
Wgtd. Ave. Grant Date Fair Value/Sh., Forfeited	18.97	21.42	21.76
Wgtd. Ave. Grant Date Fair Value/Sh., Ending Balance	$ 15.90	$ 21.19	$ 22.48
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Roll Forward]
Grant Date Fair Value, Outstanding, Beginning Balance	$ 2,805	$ 4,227	$ 3,473
Grant Date Fair Value, Granted	1,947	2,786	2,123
Grant Date Fair Value, Vested	(1,125)	(3,582)	(1,139)
Grant Date Fair Value, Forfeited	(330)	(626)	(230)
Grant Date Fair Value, Outstanding, Ending Balance	$ 3,297	$ 2,805	$ 4,227
Maximum Non Vested Restricted Stock Units Issuable Upon Satisfaction Of Certain Performance Criteria [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Number of Shares, Outstanding, Beginning Balance	167,128	129,713	132,300
Number of Shares, Granted	136,986	144,582	59,675
Number of Shares, Vested	0	0	0
Number of Shares, Forfeited	(65,685)	(107,167)	(62,262)
Number of Shares, Outstanding, Ending Balance	238,429	167,128	129,713
Wgtd. Ave. Grant Date Fair Value/Sh., Beginning Balance	$ 22.04	$ 24.99	$ 23.81
Wgtd. Ave. Grant Date Fair Value/Sh., Granted	11.34	18.47	21.54
Wgtd. Ave. Grant Date Fair Value/Sh., Vested	0	0	0
Wgtd. Ave. Grant Date Fair Value/Sh., Forfeited	20.24	20.78	19.18
Wgtd. Ave. Grant Date Fair Value/Sh., Ending Balance	$ 16.39	$ 22.04	$ 24.99
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Roll Forward]
Grant Date Fair Value, Outstanding, Beginning Balance	$ 3,684	$ 3,241	$ 3,150
Grant Date Fair Value, Granted	1,553	2,670	1,285
Grant Date Fair Value, Vested	0	0	0
Grant Date Fair Value, Forfeited	(1,329)	(2,227)	(1,194)
Grant Date Fair Value, Outstanding, Ending Balance	$ 3,908	$ 3,684	$ 3,241

Retirement Plans And Other Po85

Retirement Plans And Other Postretirement Benefits (Narrative) (Details) $ in Millions	12 Months Ended
	Dec. 31, 2016USD ($)employee	Dec. 31, 2015USD ($)	Dec. 31, 2014USD ($)
Defined Benefit Plan Disclosure [Line Items]
Percentage of change in health care cost trend rate assumptions would be immaterial	1.00%
Expected pension expense for next twelve months	$ 10.4
Term of estimated benefit payments for fixed income securities, minimum	1 year
Term of estimated benefit payments for fixed income securities, maximum	2 years
Defined benefit, average remaining duration of benefit payments for pension plans	11 years 4 months 24 days
Pension Plan
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, expect to required contributions	$ 5.5
Unfunded Non-Qualified Supplemental Pension Plan
Defined Benefit Plan Disclosure [Line Items]
Projected benefit obligation to unfunded plan	2.2	$ 2.3
Pension Expense	$ 0.1	0.1	$ 0.1
Films Manufacturing Facility In Kerkrade | Multiemployer Plans, Pension
Defined Benefit Plan Disclosure [Line Items]
Number of employees participating in pension plan | employee	78
Multi-employer pension plan, pension expenses	$ 0.4	$ 0.4	$ 0.5

Retirement Plans And Other Po86

Retirement Plans And Other Postretirement Benefits (Reconciliation Of Changes In Benefit Obligations And Plan Assets) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Pension Benefits
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Benefit obligation, beginning of year	$ 303,852	$ 325,426
Service cost	231	530	$ 869
Interest cost	13,323	13,217	13,397
Effect of actuarial (gains) losses related to the following:
Discount rate change	9,296	(14,687)
Retirement rate assumptions and mortality table adjustments	(5,537)	(5,456)
Other	(3,025)	(746)
Benefits paid	(15,014)	(14,432)
Benefit obligation, end of year	303,126	303,852	325,426
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Plan assets at fair value, beginning of year	210,642	229,017
Actual return on plan assets	11,199	(6,311)
Employer contributions	7,732	2,368
Benefits paid	(15,014)	(14,432)
Plan assets at fair value, end of year	214,559	210,642	229,017
Funded status of the plans	(88,567)	(93,210)
Amounts recognized in the consolidated balance sheets:
Net amount recognized	88,567	93,210
Other Post-Retirement Benefits
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Benefit obligation, beginning of year	7,745	8,372
Service cost	38	44	43
Interest cost	337	325	387
Effect of actuarial (gains) losses related to the following:
Discount rate change	210	(356)
Retirement rate assumptions and mortality table adjustments	(433)	32
Other	(131)	(332)
Benefits paid	(964)	(965)
Benefit obligation, end of year	7,436	7,745	8,372
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Plan assets at fair value, beginning of year	0	0
Actual return on plan assets	0	0
Employer contributions	330	340
Benefits paid	(964)	(965)
Plan assets at fair value, end of year	0	0	$ 0
Funded status of the plans	(7,436)	(7,745)
Amounts recognized in the consolidated balance sheets:
Net amount recognized	7,436	7,745
Defined Benefit Plan, Contributions by Plan Participants	634	625
Accrued Expenses | Pension Benefits
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Pension and Other Postretirement Defined Benefit Plans, Current Liabilities	182	210
Accrued Expenses | Other Post-Retirement Benefits
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Pension and Other Postretirement Defined Benefit Plans, Current Liabilities	453	455
Amounts recognized in the consolidated balance sheets:
Pension and Other Postretirement Defined Benefit Plans, Liabilities, Noncurrent	6,983	7,290
Other Noncurrent Liabilities [Member] | Pension Benefits
Amounts recognized in the consolidated balance sheets:
Pension and Other Postretirement Defined Benefit Plans, Liabilities, Noncurrent	$ 88,385	$ 93,000

Retirement Plans And Other Po87

Retirement Plans And Other Postretirement Benefits (Components Of Net Periodic Benefit Income Or Cost For Continuing Operations) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Weighted-average assumptions used to determine benefit obligations:
Defined Benefit Plan Assumption Expected Long Term Return On Assets At Year End	6.50%
Pension Benefits
Weighted-average assumptions used to determine benefit obligations:
Discount rate	4.29%	4.55%	4.17%
Defined Benefit Plan Assumption Expected Long Term Return On Assets At Year End	6.50%	7.00%	7.50%
Weighted-average assumptions used to determine net periodic benefit cost:
Discount rate	4.55%	4.17%	4.99%
Expected long-term return on plan assets	7.00%	7.50%	7.75%
Components of net periodic benefit cost:
Service cost	$ 231	$ 530	$ 869
Interest cost	13,323	13,217	13,397
Expected return on plan assets	(15,980)	(17,636)	(18,301)
Amortization of prior service costs and gains or losses	13,312	16,190	10,688
Settlement/curtailment	0	45	81
Net periodic benefit cost	$ 10,886	$ 12,346	$ 6,734
Other Post-Retirement Benefits
Weighted-average assumptions used to determine benefit obligations:
Discount rate	4.24%	4.49%	4.11%
Weighted-average assumptions used to determine net periodic benefit cost:
Discount rate	4.49%	4.11%	4.88%
Components of net periodic benefit cost:
Service cost	$ 38	$ 44	$ 43
Interest cost	337	325	387
Expected return on plan assets	0	0	0
Amortization of prior service costs and gains or losses	(214)	(194)	(190)
Settlement/curtailment	0	0	0
Net periodic benefit cost	$ 161	$ 175	$ 240

Retirement Plans And Other Po88

Retirement Plans And Other Postretirement Benefits (Schedule Of Expected Benefit Payments For Continuing Operations) (Details) $ in Thousands	Dec. 31, 2016USD ($)
Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
2,017	$ 16,165
2,018	16,568
2,019	17,076
2,020	17,537
2,021	17,860
2022-2026	92,955
Other Post-Retirement Benefits
Defined Benefit Plan Disclosure [Line Items]
2,017	453
2,018	456
2,019	460
2,020	462
2,021	465
2022-2026	$ 2,322

Retirement Plans And Other Po89

Retirement Plans And Other Postretirement Benefits (Schedule Of Amounts Recognized Before Related Deferred Income Taxes In Accumulated Other Comprehensive Income) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Prior service cost (benefit)	$ 10	$ 18	$ 87
Net actuarial (gain) loss	145,782	153,570	166,678
Other Post-Retirement Benefits
Defined Benefit Plan Disclosure [Line Items]
Prior service cost (benefit)	0	0	0
Net actuarial (gain) loss	$ (1,756)	$ (1,616)	$ (1,154)

Retirement Plans And Other Po90

Retirement Plans And Other Postretirement Benefits (Schedule Of Amounts Before Related Deferred Income Taxes In Accumulated Other Comprehensive Income That Are Expected To Be Recognized As Components Of Net Periodic Benefit Or Cost) (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2016USD ($)
Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Prior service cost (benefit)	$ 5
Net actuarial (gain) loss	12,329
Other Post-Retirement Benefits
Defined Benefit Plan Disclosure [Line Items]
Prior service cost (benefit)	0
Net actuarial (gain) loss	$ (245)

Retirement Plans And Other Po91

Retirement Plans And Other Postretirement Benefits (Schedule Of Percentage Composition Of Assets Held By Pension Plans) (Details)	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Defined Benefit Plan Disclosure [Line Items]
% Composition of Plan Assets at December 31, Total for continuing operations	100.00%	100.00%	100.00%
Fixed income securities
Defined Benefit Plan Disclosure [Line Items]
% Composition of Plan Assets at December 31, Total for continuing operations	8.00%	12.80%	14.50%
Large/mid-capitalization equity securities
Defined Benefit Plan Disclosure [Line Items]
% Composition of Plan Assets at December 31, Total for continuing operations	14.70%	13.80%	13.70%
Small-capitalization equity securities
Defined Benefit Plan Disclosure [Line Items]
% Composition of Plan Assets at December 31, Total for continuing operations	5.30%	4.00%	4.30%
International and emerging market equity securities
Defined Benefit Plan Disclosure [Line Items]
% Composition of Plan Assets at December 31, Total for continuing operations	11.50%	10.90%	11.00%
Total equity securities
Defined Benefit Plan Disclosure [Line Items]
% Composition of Plan Assets at December 31, Total for continuing operations	31.50%	28.70%	29.00%
Private equity and hedge funds
Defined Benefit Plan Disclosure [Line Items]
% Composition of Plan Assets at December 31, Total for continuing operations	48.40%	52.40%	51.20%
Other assets
Defined Benefit Plan Disclosure [Line Items]
% Composition of Plan Assets at December 31, Total for continuing operations	12.10%	6.10%	5.30%

Retirement Plans And Other Po92

Retirement Plans And Other Postretirement Benefits (Schedule Of Targeted Allocation Percentage For Pension Plan Assets And Expected Long-Term Rate Of Return On Assets) (Details)	12 Months Ended
	Dec. 31, 2016
Defined Benefit Plan Disclosure [Line Items]
Target % Composition of Plan Assets, Total for continuing operations	100.00%	[1]
Expected Long-term Return %, Total for continuing operations	6.50%
Fixed income securities
Defined Benefit Plan Disclosure [Line Items]
Target % Composition of Plan Assets, Total for continuing operations	22.00%	[1]
Expected Long-term Return %, Total for continuing operations	3.80%
Large/mid-capitalization equity securities
Defined Benefit Plan Disclosure [Line Items]
Target % Composition of Plan Assets, Total for continuing operations	14.00%	[1]
Expected Long-term Return %, Total for continuing operations	8.40%
Small-capitalization equity securities
Defined Benefit Plan Disclosure [Line Items]
Target % Composition of Plan Assets, Total for continuing operations	5.00%	[1]
Expected Long-term Return %, Total for continuing operations	9.50%
International and emerging market equity securities
Defined Benefit Plan Disclosure [Line Items]
Target % Composition of Plan Assets, Total for continuing operations	13.00%	[1]
Expected Long-term Return %, Total for continuing operations	8.60%
Total equity securities
Defined Benefit Plan Disclosure [Line Items]
Target % Composition of Plan Assets, Total for continuing operations	32.00%	[1]
Expected Long-term Return %, Total for continuing operations	8.70%
Private equity and hedge funds
Defined Benefit Plan Disclosure [Line Items]
Target % Composition of Plan Assets, Total for continuing operations	46.00%	[1]
Expected Long-term Return %, Total for continuing operations	6.30%
[1]	{F|ahBzfndlYmZpbGluZ3MtaHJkcmoLEgZYTUxEb2MiXlhCUkxEb2NHZW5JbmZvOjliMzMyMGRmYmY2YzQwMGE4YzQ5ZmRlMjg2YmQ4ODlkfFRleHRTZWxlY3Rpb246ODVCN0QzMTJGRUIzQzg1MEEwMTQxMDJDNzY1NzNGQTEM}

Retirement Plans And Other Po93

Retirement Plans And Other Postretirement Benefits (Schedule Of Pension Plan Assets Categorized By Level Within Fair Value Measurement Hierarchy) (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Defined Benefit Plan Disclosure [Line Items]
Contracts with insurance companies	$ 10,158	$ 10,207
Total plan assets	214,558	210,642
Large/mid-capitalization equity securities
Defined Benefit Plan Disclosure [Line Items]
Total plan assets at fair value	31,549	29,027
Small-capitalization equity securities
Defined Benefit Plan Disclosure [Line Items]
Total plan assets at fair value	11,389	8,457
International and emerging market equity securities
Defined Benefit Plan Disclosure [Line Items]
Total plan assets at fair value	24,710	23,054
Fixed income securities
Defined Benefit Plan Disclosure [Line Items]
Total plan assets at fair value	17,213	22,968
Private equity and hedge funds
Defined Benefit Plan Disclosure [Line Items]
Total plan assets at fair value	103,686	110,340
Fixed Income Security NAV [Member]
Defined Benefit Plan Disclosure [Line Items]
Total plan assets at fair value		3,862
Other assets
Defined Benefit Plan Disclosure [Line Items]
Total plan assets at fair value	15,853	2,727
Total Plan Assets at Fair Value [Member]
Defined Benefit Plan Disclosure [Line Items]
Total plan assets at fair value	100,714	86,233
Quoted Prices in Active Markets for Identical Assets (Level 1)
Defined Benefit Plan Disclosure [Line Items]
Total plan assets at fair value	74,642	60,963
Quoted Prices in Active Markets for Identical Assets (Level 1) | Large/mid-capitalization equity securities
Defined Benefit Plan Disclosure [Line Items]
Total plan assets at fair value	31,549	29,027
Quoted Prices in Active Markets for Identical Assets (Level 1) | Small-capitalization equity securities
Defined Benefit Plan Disclosure [Line Items]
Total plan assets at fair value	11,389	8,457
Quoted Prices in Active Markets for Identical Assets (Level 1) | International and emerging market equity securities
Defined Benefit Plan Disclosure [Line Items]
Total plan assets at fair value	11,410	10,126
Quoted Prices in Active Markets for Identical Assets (Level 1) | Fixed income securities
Defined Benefit Plan Disclosure [Line Items]
Total plan assets at fair value	4,441	10,626
Quoted Prices in Active Markets for Identical Assets (Level 1) | Other assets
Defined Benefit Plan Disclosure [Line Items]
Total plan assets at fair value	15,853	2,727
Significant Other Observable Inputs (Level 2)
Defined Benefit Plan Disclosure [Line Items]
Total plan assets at fair value	26,072	25,270
Significant Other Observable Inputs (Level 2) | Large/mid-capitalization equity securities
Defined Benefit Plan Disclosure [Line Items]
Total plan assets at fair value	0	0
Significant Other Observable Inputs (Level 2) | Small-capitalization equity securities
Defined Benefit Plan Disclosure [Line Items]
Total plan assets at fair value	0	0
Significant Other Observable Inputs (Level 2) | International and emerging market equity securities
Defined Benefit Plan Disclosure [Line Items]
Total plan assets at fair value	13,300	12,928
Significant Other Observable Inputs (Level 2) | Fixed income securities
Defined Benefit Plan Disclosure [Line Items]
Total plan assets at fair value	12,772	12,342
Significant Other Observable Inputs (Level 2) | Other assets
Defined Benefit Plan Disclosure [Line Items]
Total plan assets at fair value	0	0
Significant Unobservable Inputs (Level 3)
Defined Benefit Plan Disclosure [Line Items]
Total plan assets at fair value	0	0
Significant Unobservable Inputs (Level 3) | Large/mid-capitalization equity securities
Defined Benefit Plan Disclosure [Line Items]
Total plan assets at fair value	0	0
Significant Unobservable Inputs (Level 3) | Small-capitalization equity securities
Defined Benefit Plan Disclosure [Line Items]
Total plan assets at fair value	0	0
Significant Unobservable Inputs (Level 3) | International and emerging market equity securities
Defined Benefit Plan Disclosure [Line Items]
Total plan assets at fair value	0	0
Significant Unobservable Inputs (Level 3) | Fixed income securities
Defined Benefit Plan Disclosure [Line Items]
Total plan assets at fair value	0	0
Significant Unobservable Inputs (Level 3) | Other assets
Defined Benefit Plan Disclosure [Line Items]
Total plan assets at fair value	$ 0	$ 0

Savings Plan (Details)

Savings Plan (Details) - USD ($)	1 Months Ended	11 Months Ended	12 Months Ended
	Jan. 31, 2014	Dec. 31, 2014	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 1998	Dec. 31, 1997
Savings Plan [Line Items]
Charges recognized			$ 3,200,000	$ 3,000,000	$ 1,600,000
Number of common stock purchased						7,200	46,671
Amount of common stock purchased						$ 200,000	$ 1,000,000
Savings Plan
Savings Plan [Line Items]
Employee contribution to savings plan		$ 0.50	1
Defined Contribution Plan Employer Employee Contribution		$ 1	$ 1
Maximum matching contribution	5.00%	5.00%
Percentage of enrollment of base pay			3.00%
Non Qualified Plan [Member]
Savings Plan [Line Items]
Liability under the restoration plan			$ 1,600,000	$ 1,000,000
Liability under the restoration plan, shares			67,013	71,818

Rental Expense And Contractua95

Rental Expense And Contractual Commitments (Narrative) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Leases, Operating [Abstract]
Rental expenses for continuing operations from the consecutive year	$ 2.9	$ 3.6	$ 3.6
Contractual obligations for plant construction and purchases of real property and equipment amounted	$ 12

Rental Expense And Contractua96

Rental Expense And Contractual Commitments (Schedule Of Rental Commitments Under All Non-Cancelable Operating Leases For Continuing Operation) (Details) $ in Thousands	Dec. 31, 2016USD ($)
Leases, Operating [Abstract]
2,017	$ 2,397
2,018	2,200
2,019	1,982
2,020	1,976
2,021	1,491
Remainder	1,169
Total	$ 11,215

Income Taxes (Narrative) (Detai

Income Taxes (Narrative) (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Income Taxes [Line Items]
Deferred Tax Benefit Expense Valuation Allowance Adj Capital Loss Carryforwards	$ 0	$ 1,000	$ 5,000
excess foreign tax credits repatriation	6,400
Deferred Tax Benefit Expense Unremitted Earnings FCTA	500	2,200
Benefit from the tax incentives		$ 100	$ 100
Benefit from the tax incentives, per share		$ 0	$ 0
Valuation allowance	12,694	$ 13,344
Balance of unrecognized state tax positions	800
State And Foreign Net Operating Loss Carryforwards
Income Taxes [Line Items]
Operating Loss Carryforwards	4,900	1,600
Valuation allowance	1,500	1,500	$ 2,800
Excess Capital Losses From Investments And Other Related Items
Income Taxes [Line Items]
Valuation allowance	10,900	11,200	11,400
Asset Impairments In Foreign Jurisdictions
Income Taxes [Line Items]
Valuation allowance	$ 0	$ 900	$ 400
Terphane Ltda
Income Taxes [Line Items]
Income tax rate	6.25%
Current effective tax rate	15.25%
Percentage of social contribution on income included in current effective tax rate	9.00%
Brazilian
Income Taxes [Line Items]
Federal statutory income tax rate	34.00%
Income tax rate	25.00%
Percentage of social contribution on income included in federal statutory income tax rate	9.00%
Minimum
Income Taxes [Line Items]
Net Operating Loss Carrforward Expiration Period	5 years
Maximum
Income Taxes [Line Items]
Net Operating Loss Carrforward Expiration Period	8 years

Income Taxes (Schedule Of Incom

Income Taxes (Schedule Of Income From Continuing Operations Before Income Taxes) (Details) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Income from continuing operations before income taxes:
Domestic		$ 26,284	$ (9,116)	$ 38,402
Foreign		1,399	(14,091)	7,014
Income (loss) from continuing operations before income taxes		27,683	(23,207)	45,416
Current income taxes:
Federal		4,302	12,693	14,568
State		(709)	973	2,178
Foreign		3,255	6,064	4,102
Current income taxes, Total		6,848	19,730	20,848
Deferred income taxes:
Federal		(2,505)	(9,419)	(9,530)
State		1,396	(1,035)	(417)
Foreign		(2,522)	(348)	(1,514)
Deferred income taxes, Total		(3,631)	(10,802)	(11,461)
Total income taxes	[1]	$ 3,217	$ 8,928	$ 9,387
[1]	See Notes 1, 3, 4 and 18 for more information on losses associated with plant shutdowns, asset impairments and restructurings, unusual items, gains or losses from sale of assets, gains or losses on an investment accounted for under the fair value method and other items.

Income Taxes (Summary of Effect

Income Taxes (Summary of Effective Income Tax Rate For Continuing Operations) (Details)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Income Tax Disclosure [Abstract]
Federal statutory rate	35.00%	35.00%	35.00%
State taxes, net of federal income tax benefit	2.30%	0.30%	2.20%
Tax contingency accruals and tax settlements	0.40%	(3.10%)	2.00%
Non-deductible expenses	1.40%	(1.90%)	0.90%
Foreign rate differences	1.80%	3.10%	(0.10%)
Tax incentive	0.00%	0.50%	(0.10%)
Valuation allowance due to foreign losses	(1.50%)	0.00%	(0.40%)
Research and development tax credit	(2.00%)	1.50%	(0.60%)
Domestic Production Activities Deduction	(2.70%)	3.60%	(1.90%)
Remitted earnings from foreign operations	(23.70%)	0.10%	0.00%
Goodwill impairment	0.00%	(68.10%)	0.00%
Changes in estimates related to prior year tax provision	1.20%	(2.10%)	(2.30%)
Goodwill impairment	(0.90%)	2.20%	(3.80%)
Valuation allowance for capital loss carry-forwards	1.00%	1.30%	(10.20%)
Deduction for divestiture of subsidiary stock	(0.70%)	(10.90%)
Effective income tax rate for continuing operations	11.60%	(38.50%)	20.70%

Income Taxes (Schedule Of Defer

Income Taxes (Schedule Of Deferred Tax Liabilities And Assets) (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Deferred tax liabilities:
Amortization of goodwill and other intangibles	$ 43,546	$ 42,900
Depreciation	24,178	22,221
Foreign currency translation gain adjustment	1,424	2,738
Derivative financial instruments	493	0
Total deferred tax liabilities	69,641	67,859
Deferred tax assets:
Pensions	30,733	31,972
Employee benefits	10,262	10,397
Inventory	3,622	4,636
Excess capital losses and book/tax basis differences on investments	7,595	8,026
Tax benefit on state and foreign NOL and credit carryforwards	4,921	1,624
Asset write-offs, divestitures and environmental accruals	2,515	2,022
Timing adjustment for unrecognized tax benefits on uncertain tax positions, including portion relating to interest and penalties	395	1,006
Allowance for doubtful accounts	198	406
Derivative financial instruments		234
Other	1,568	2,224
Deferred tax assets before valuation allowance	61,809	62,547
Less: Valuation allowance	12,694	13,344
Total deferred tax assets	49,115	49,203
Net deferred tax liability	20,526	18,656
Deferred Tax Assets, Gross, Noncurrent	584
Amounts recognized in the consolidated balance sheets:
Deferred income taxes (noncurrent)	$ 21,110	$ 18,656

Income Taxes (Schedule Of Unrec

Income Taxes (Schedule Of Unrecognized Uncertain Tax Positions) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Balance at beginning of period	$ 4,049	$ 3,255
Increase (decrease) due to tax positions taken in, Current period	1,151	518	$ 619
Increase (decrease) due to tax positions taken in, Prior period	43	326	397
Increase (decrease) due to settlements with taxing authorities	(1,706)	0	0
Reductions due to lapse of statute of limitations	(222)	(50)	0
Balance at end of period	$ 3,315	$ 4,049	$ 3,255

Income Taxes (Schedule Of Addit

Income Taxes (Schedule Of Additional Information Related To Unrecognized Uncertain Tax Positions) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2012
Income Tax Disclosure [Abstract]
Gross unrecognized tax benefits on uncertain tax positions (reflected in current income tax and other noncurrent liability accounts in the balance sheet)	$ 3,315	$ 4,049	$ 3,255	$ 2,239
Deferred income tax assets related to unrecognized tax benefits on uncertain tax positions (reflected in deferred income tax accounts in the balance sheet)	(345)	(858)	(726)
Net unrecognized tax benefits on uncertain tax positions, which would impact the effective tax rate if recognized	2,970	3,191	2,529
Interest and penalties accrued on deductions taken relating to uncertain tax positions (approximately $(262), $90 and $150 reflected in income tax expense in the income statement in 2016, 2015 and 2014, respectively, with the balance shown in current income tax and other noncurrent liability accounts in the balance sheet)	135	397	310
Interest and penalties accrued on deductions taken relating to uncertain tax positions, reflected in income tax expense in the income statement	(262)	90	150
Related deferred income tax assets recognized on interest and penalties	(49)	(148)	(116)
Interest and penalties accrued on uncertain tax positions net of related deferred income tax benefits, which would impact the effective tax rate if recognized	86	249	194
Total net unrecognized tax benefits on uncertain tax positions reflected in the balance sheet, which would impact the effective tax rate if recognized	$ 3,056	$ 3,440	$ 2,723

Losses Associated With Plant103

Losses Associated With Plant Shutdowns, Asset Impairments And Restructurings, Unusual Items, Gains From Sale Of Assets And Other Items (Details)		3 Months Ended												9 Months Ended	12 Months Ended			18 Months Ended
		Dec. 31, 2016USD ($)	Sep. 30, 2016USD ($)	Jun. 30, 2016USD ($)	Mar. 31, 2016USD ($)	Dec. 31, 2015USD ($)	Sep. 30, 2015USD ($)	Jun. 30, 2015USD ($)	Mar. 31, 2015USD ($)	Dec. 31, 2014USD ($)employee	Sep. 30, 2014USD ($)	Jun. 30, 2014USD ($)	Mar. 31, 2014USD ($)	Sep. 30, 2016USD ($)	Dec. 31, 2016USD ($)	Dec. 31, 2015USD ($)	Dec. 31, 2014USD ($)employee	Dec. 31, 2016USD ($)
Restructuring Cost and Reserve [Line Items]
Severance and other employee-related costs			$ 300,000			$ 1,100,000	$ 900,000	$ 300,000		$ 500,000	$ 400,000
Asset impairments															$ 1,436,000	$ 403,000	$ 993,000
Severance and other employee-related costs after taxes			200,000			700,000	600,000	200,000		300,000	200,000
Business Development Expenses					$ 400,000	1,000,000
Business Development Expenses net of taxes														$ 200,000
Business Development Expenses Net Of Tax						600,000
Unrealized gain (loss) on investments under fair value method															1,600,000	(20,500,000)	2,000,000
Losses Associated with Plant Shutdowns, Asset Impairments, Restructurings & Other															6,100,000	10,100,000	13,800,000
Losses Associated with Plant Shutdowns, Asset Impairments, Restructurings & Other After Taxes															3,900,000	6,400,000	9,300,000
Payments for Restructuring															1,540,000	2,027,000	3,039,000
kaleo
Restructuring Cost and Reserve [Line Items]
Unrealized gain (loss) on investments under fair value method	[1]														1,600,000	(20,500,000)	2,000,000
Unrealized gain (loss) on investments, net of tax															1,200,000	(15,700,000)	1,000,000
Harbinger
Restructuring Cost and Reserve [Line Items]
Unrealized loss on investments under fair value method, other than temporary impairment																	800,000
Unrealized loss on investments under fair value method, other than temporary impairment, after taxes																	400,000
Alleghany and Bath County, Virginia
Restructuring Cost and Reserve [Line Items]
Unrealized gain (loss) on investments under fair value method		$ 1,000,000													1,032,000
Gain (Loss) on Disposition of Assets															0	0	1,208,000
Unrealized Gain (Loss) on Investment Property															(1,032,000)	0	0
Unrealized Gain Loss On Investment Property After Tax		(700,000)													(700,000)
Gain (Loss) on Sale of Investment Property, After Tax																	800,000
Aluminum Extrusions [Member]
Restructuring Cost and Reserve [Line Items]
Gain (loss) on sale of equipment		(200,000)
Gain (Loss) on Disposition of Property Plant Equipment, Net of Taxes		(100,000)
Net Gain on Disposition of Property Plant Equipment net of shutdown loss		100,000
Net Gain on Disposition of Property Plant Equipment net of shutdown loss, Net of Taxes		100,000
Other Restructuring [Member] | FilmProductsManufacturingFacilityInLakeZurichIllinois [Member]
Restructuring Cost and Reserve [Line Items]
Other Restructuring Costs		200,000	600,000	$ 800,000	500,000										2,000,000
Other Restructuring Costs after Taxes		100,000	400,000	500,000	300,000										1,300,000
Other Plant Consolidation Expenses - Cost of Goods Sold		200,000	400,000	700,000	400,000										1,600,000
Other Plant Consolidation Expenses - Cost of Goods Sold, Net of Taxes		100,000	200,000	400,000	200,000										1,000,000
Plant shutdown related expenditures		800,000	1,100,000	1,300,000	1,100,000										4,300,000			$ 6,500,000
Plant Shutdown Related Expenditures Net, net of taxes		500,000	700,000	900,000	700,000										2,800,000			4,100,000
Severance and other employee-related costs		300,000	300,000	400,000	300,000										1,200,000
Asset impairments		0	100,000	100,000	300,000										400,000
Accelerated Depreciation Expense		300,000	100,000	100,000	100,000										600,000
Accelerated Depreciation Expense taxes		200,000	100,000	100,000	100,000										400,000
Severance and other employee-related costs after taxes		200,000	200,000	200,000	200,000										800,000
Asset impairments after taxes		0	0	100,000	$ 200,000										300,000
Corporate Segment [Member]
Restructuring Cost and Reserve [Line Items]
Severance and other employee-related costs			200,000				26,000
Severance and other employee-related costs after taxes			100,000
Corporate [Member] [Domain]
Restructuring Cost and Reserve [Line Items]
Severance and other employee-related costs								3,900,000
Severance and other employee-related costs after taxes								2,500,000
Flexible Packaging Films [Member] [Domain]
Restructuring Cost and Reserve [Line Items]
Severance and other employee-related costs								300,000	$ (100,000)
Severance and other employee-related costs after taxes									0
PE Films [Member]
Restructuring Cost and Reserve [Line Items]
Severance and other employee-related costs			100,000				900,000	0		200,000	100,000	$ 600,000	$ 800,000
Asset impairments		200,000
Severance and other employee-related costs after taxes			100,000									400,000	500,000
Asset impairments after taxes		100,000
PE Films [Member] | FilmProductsManufacturingFacilityInLakeZurichIllinois [Member]
Restructuring Cost and Reserve [Line Items]
Other Plant Consolidation Expenses - Cost of Goods Sold															2,200,000
Other Plant Consolidation Expenses - Cost of Goods Sold, Net of Taxes															1,400,000
AcceleratedDepreciationExpectedCost		3,000,000													3,000,000			3,000,000
Asset Impairment and Other Plant Shutdown Related Costs															2,100,000
Asset Impairment and Other Plant Shutdown Related Costs, Net of Taxes															1,300,000
Payments for Restructuring															10,200,000			13,800,000
Capital Expenditures Restructuring Project															8,200,000			11,100,000
PE Films [Member] | Film Products Manufacturing Facility in LaGrange, Georgia
Restructuring Cost and Reserve [Line Items]
Gain (loss) on sale of equipment										0
Gain (Loss) on Disposition of Property, Plant, and Equipment, Net of Tax										73,000
PE Films [Member] | RestructuringProductQualifications [Member] | FilmProductsManufacturingFacilityInLakeZurichIllinois [Member]
Restructuring Cost and Reserve [Line Items]
RestructuringExpectedCashOutflows		1,000,000													1,000,000			1,000,000
PE Films [Member] | Facility Closing | Film Products Manufacturing Facility in Red Springs, NC
Restructuring Cost and Reserve [Line Items]
Plant shutdown related expenditures										(100,000)	37,000	300,000	500,000				$ 700,000
Plant shutdown related expenditures after taxes										$ 63,000	(23,000)	(200,000)	(300,000)
Severance and other employee-related costs													400,000
Asset Impairment and Other Plant Shutdown Related Costs													$ 300,000
Number of employees employed | employee										66							66
PE Films [Member] | Other Restructuring [Member] | FilmProductsManufacturingFacilityInLakeZurichIllinois [Member]
Restructuring Cost and Reserve [Line Items]
Other Restructuring Costs																600,000
Other Plant Consolidation Expenses - Cost of Goods Sold																100,000
Restructuring and Related Cost, Expected Cost		2,000,000													2,000,000			2,000,000
Plant shutdown related expenditures						1,000,000	1,200,000
Plant shutdown related expenditures after taxes						(600,000)	(700,000)
Severance and other employee-related costs																800,000
Asset impairments																400,000
Accelerated Depreciation Expense																$ 400,000
PE Films [Member] | RestructuringSeverance&EquipmentTransfers [Member] | FilmProductsManufacturingFacilityInLakeZurichIllinois [Member]
Restructuring Cost and Reserve [Line Items]
RestructuringExpectedCashOutflows		5,000,000													5,000,000			5,000,000
PE Films [Member] | RestructuringCapExEquiptUpgrades [Member] | FilmProductsManufacturingFacilityInLakeZurichIllinois [Member]
Restructuring Cost and Reserve [Line Items]
RestructuringExpectedCashOutflows		11,000,000													11,000,000			11,000,000
PE Films [Member] | RestructuringSafetyQualityIncentives [Member] | FilmProductsManufacturingFacilityInLakeZurichIllinois [Member]
Restructuring Cost and Reserve [Line Items]
RestructuringExpectedCashOutflows		1,000,000													1,000,000			1,000,000
PE Films [Member] | Tredegar vs. 3M [Member]
Restructuring Cost and Reserve [Line Items]
Litigation Settlement, Amount												10,000,000
Litigation Settlement Amount, Net of Tax												6,800,000
Aluminum Extrusions [Member]
Restructuring Cost and Reserve [Line Items]
Severance and other employee-related costs							35,000				0
Business Development Expenses		600,000
Business Development Expenses net of taxes		400,000
Cast House Explosion pretax income/loss		700,000	(1,700,000)
Cast House Explosion income/loss net of taxes		400,000	(1,100,000)
Excess production costs for which recovery from insurance is not assured		600,000
Excess production costs for which recovery from insurance is not assured, net of taxes		400,000
Loss from Catastrophes			(50,000)	600,000
Loss from Catastrophes net of taxes			(31,525)	$ 400,000
Insured Event, Gain (Loss)		100,000	(1,900,000)
Insured Event, Gain (Loss), net of taxes		100,000	(1,200,000)
Tangible Asset Impairment Charges			300,000
Tangible Asset Impairment Charges net of taxes			200,000
Aluminum Extrusions [Member] | Aluminum Extrusions Manufacturing Facility In Newnan Georgia
Restructuring Cost and Reserve [Line Items]
Expected future environmental costs		500,000				300,000				$ 700,000	75,000	200,000
Expected future environmental costs after taxes		300,000				200,000				400,000	46,000	100,000
Aluminum Extrusions [Member] | Facility Closing | Aluminum Extrusions Manufacturing Facility In Kentland, Indiana
Restructuring Cost and Reserve [Line Items]
Plant shutdown related expenditures		61,000	300,000			31,000	300,000	18,000	15,000	11,000	20,000	24,000
Plant Shutdown Related Expenditures Net, net of taxes		39,000	$ 200,000
Plant shutdown related expenditures after taxes						(19,000)	$ (200,000)	$ (11,000)	$ (9,000)	(7,000)	(12,000)	$ (15,000)
Flexible packaging films
Restructuring Cost and Reserve [Line Items]
Severance and other employee-related costs										$ 300,000	$ 300,000
Application of Prior Period Brazilian Value-added Tax Credits		300,000
Application of Prior Period Brazilian Value added Tax Credits after Taxes		200,000
Business Acquisition, Preacquisition Contingency, Amount of Settlement		100,000													100,000			100,000
Business Acquisition, Preacquisition Contingency, Amount of Settlement, Net of Taxes		0													0			0
Minimum | PE Films [Member] | FilmProductsManufacturingFacilityInLakeZurichIllinois [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost		5,000,000													5,000,000			5,000,000
RestructuringExpectedCashOutflows		16,000,000													16,000,000			16,000,000
Restructuring Future Annual Cost Savings		5,000,000													5,000,000			5,000,000
Minimum | PE Films [Member] | Employee Severance [Member] | FilmProductsManufacturingFacilityInLakeZurichIllinois [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost		3,000,000													3,000,000			3,000,000
Maximum | PE Films [Member] | FilmProductsManufacturingFacilityInLakeZurichIllinois [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost		6,000,000													6,000,000			6,000,000
RestructuringExpectedCashOutflows		17,000,000													17,000,000			17,000,000
Restructuring Future Annual Cost Savings		6,000,000													6,000,000			6,000,000
Maximum | PE Films [Member] | Employee Severance [Member] | FilmProductsManufacturingFacilityInLakeZurichIllinois [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost		$ 4,000,000													$ 4,000,000			$ 4,000,000
Selling, General and Administrative Expenses [Member]
Restructuring Cost and Reserve [Line Items]
Severance and other employee-related costs						$ 400,000
[1]	See Notes 1, 3, 4 and 18 for more information on losses associated with plant shutdowns, asset impairments and restructurings, unusual items, gains or losses from sale of assets, gains or losses on an investment accounted for under the fair value method and other items.

Contingencies (Details)

Contingencies (Details)	Jan. 08, 2013in
Loss Contingencies [Line Items]
Minimum thickness of performance enhancing layer on films required to avoid antidumping duty order	0.00001

Selected Quarterly Financial105

Selected Quarterly Financial Data (Details) - USD ($) $ / shares in Units, $ in Thousands		3 Months Ended								12 Months Ended
		Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Quarterly Financial Information Disclosure [Abstract]
Deferred Tax Benefit Expense Valuation Allowance Adj Capital Loss Carryforwards										$ 0	$ 1,000	$ 5,000
Sales		$ 204,772	$ 207,702	$ 208,533	$ 207,333	$ 216,989	$ 223,772	$ 221,245	$ 234,171	828,341	896,177	951,826
Gross profit		27,801	33,927	31,637	37,279	40,249	33,468	29,748	37,415
Income (loss) from continuing operations										24,466	(32,135)	36,029
Income (loss) from discontinued operations	[1]									0	0	850
Net income (loss)		$ 1,728	$ 12,048	$ 3,408	$ 7,281	$ (5,876)	$ (36,723)	$ 594	$ 9,870	$ 24,466	$ (32,135)	$ 36,879
Basic:
Continuing operations										$ 0.75	$ (0.99)	$ 1.12
Discontinued operations										0	0	0.02
Basic		$ 0.05	$ 0.37	$ 0.10	$ 0.22	$ (0.18)	$ (1.13)	$ 0.02	$ 0.30	0.75	(0.99)	1.14
Diluted:
Continuing operations (in usd per share)										0.75	(0.99)	1.11
Discontinued operations (in usd per share)										0	0	0.02
Net income (in usd per share)		$ 0.05	$ 0.37	$ 0.10	$ 0.22	$ (0.18)	$ (1.13)	$ 0.02	$ 0.30	$ 0.75	$ (0.99)	$ 1.13
Shares used to compute earnings per share:
Shares used to compute earnings (loss) per share, Basic (in shares)		32,856,000	32,818,000	32,716,000	32,654,000	32,614,000	32,605,000	32,609,000	32,482,000	32,761,793	32,578,116	32,302,108
Shares used to compute earnings (loss) per share, Diluted (in shares)		32,900,000	32,828,000	32,716,000	32,654,000	32,614,000	32,605,000	32,746,000	32,628,000	32,775,072	32,578,116	32,553,854
Deferred Tax Benefit Expense Unremitted Earnings FCTA										$ 500	$ 2,200
[1]	See Notes 1, 3, 4 and 18 for more information on losses associated with plant shutdowns, asset impairments and restructurings, unusual items, gains or losses from sale of assets, gains or losses on an investment accounted for under the fair value method and other items.