Tredegar (TG) 10-Q 4 Nov 13 2013 Q3 Quarterly report Financial data

Document_And_Entity_Informatio

Document And Entity Information	9 Months Ended
	Sep. 30, 2013	Oct. 31, 2013
Document And Entity Information [Abstract]	'	'
Document Type	'10-Q	'
Amendment Flag	'false	'
Document Period End Date	30-Sep-13	'
Document Fiscal Year Focus	'2013	'
Document Fiscal Period Focus	'Q3	'
Entity Registrant Name	'TREDEGAR CORP	'
Entity Central Index Key	'0000850429	'
Current Fiscal Year End Date	'--12-31	'
Entity Filer Category	'Accelerated Filer	'
Entity Common Stock, Shares Outstanding	'	32,282,631

Consolidated_Balance_Sheets

Consolidated Balance Sheets (USD $)	Sep. 30, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Assets	'	'
Cash and cash equivalents	$42,604	$48,822
Accounts and other receivables, net of allowance for doubtful accounts and sales returns of $3,769 in 2013 and $3,552 in 2012	111,452	100,798
Income taxes recoverable	'	2,886
Inventories	76,749	74,670
Deferred income taxes	7,143	5,614
Prepaid expenses and other	6,119	6,780
Total current assets	244,067	239,570
Property, plant and equipment, at cost	779,806	749,153
Less accumulated depreciation	508,323	495,736
Net property, plant and equipment	271,483	253,417
Goodwill and other intangibles, net	230,394	240,619
Other assets and deferred charges	47,350	49,559
Total assets	793,294	783,165
Liabilities and Shareholders' Equity	'	'
Accounts payable	87,866	82,067
Accrued expenses	44,953	42,514
Income taxes payable	36	'
Total current liabilities	132,855	124,581
Long-term debt	134,000	128,000
Deferred income taxes	59,774	60,773
Other noncurrent liabilities	89,960	97,559
Total liabilities	416,589	410,913
Commitments and contingencies (Notes 1, 3 and 13)	'	'
Shareholders' equity:	'	'
Common stock, no par value (issued and outstanding - 32,275,206 at September 30, 2013 and 32,069,370 at December 31, 2012)	19,664	15,195
Common stock held in trust for savings restoration plan	-1,414	-1,401
Foreign currency translation adjustment	-12,412	131
Gain (loss) on derivative financial instruments	689	993
Pension and other postretirement benefit adjustments	-96,405	-103,471
Retained earnings	466,583	460,805
Total shareholders' equity	376,705	372,252
Total liabilities and shareholders' equity	$793,294	$783,165

Consolidated_Balance_Sheets_Pa

Consolidated Balance Sheets (Parenthetical) (USD $)	Sep. 30, 2013	Dec. 31, 2012
In Thousands, except Share data, unless otherwise specified
Consolidated Balance Sheets [Abstract]	'	'
Accounts and other receivables, allowance for doubtful accounts and sales returns	$3,769	$3,552
Common stock, no par value	'	'
Common stock, shares issued	32,275,206	32,069,370
Common stock, shares outstanding	32,275,206	32,069,370

Consolidated_Statements_Of_Inc

Consolidated Statements Of Income (USD $)	3 Months Ended		9 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Revenues and other items:	'	'	'	'
Sales	$243,194	$216,648	$728,250	$649,150
Other income (expense), net	-3,229	2,880	-1,559	8,070
Total revenues, net of other expenses	239,965	219,528	726,691	657,220
Costs and expenses:	'	'	'	'
Cost of goods sold	198,433	172,431	594,502	524,774
Freight	7,508	6,130	22,119	17,404
Selling, general and administrative	17,842	15,902	53,541	54,296
Research and development	3,189	3,429	9,605	10,163
Amortization of intangibles	1,700	1,305	5,233	4,047
Interest expense	727	708	2,132	2,732
Asset impairments and costs associated with exit and disposal activities	201	937	839	3,151
Total	229,600	200,842	687,971	616,567
Income from continuing operations before income taxes	10,365	18,686	38,720	40,653
Income taxes from continuing operations	2,937	4,476	12,185	11,318
Income from continuing operations	7,428	14,210	26,535	29,335
Loss from discontinued operations	-450	-6,783	-13,990	-11,557
Net income	$6,978	$7,427	$12,545	$17,778
Basic	'	'	'	'
Continuing operations	$0.23	$0.44	$0.83	$0.92
Discontinued operations	($0.01)	($0.21)	($0.44)	($0.36)
Net income	$0.22	$0.23	$0.39	$0.56
Diluted	'	'	'	'
Continuing operations	$0.23	$0.44	$0.81	$0.91
Discontinued operations	($0.02)	($0.21)	($0.43)	($0.36)
Net income	$0.21	$0.23	$0.38	$0.55
Shares used to compute earnings per share:	'	'	'	'
Basic	32,201	32,052	32,155	32,038
Diluted	32,658	32,101	32,591	32,198
Dividends per share	$0.07	$0.06	$0.21	$0.15

Consolidated_Statements_Of_Com

Consolidated Statements Of Comprehensive Income (Loss) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Consolidated Statements Of Comprehensive Income (Loss) [Abstract]	'	'	'	'
Net income	$6,978	$7,427	$12,545	$17,778
Other comprehensive income (loss):	'	'	'	'
Foreign currency translation adjustment (net of tax)	337	420	-12,543	-10,875
Derivative financial instruments adjustment (net of tax benefit)	236	1,523	-304	1,276
Amortization of prior service costs and net gains or losses (net of tax)	2,441	1,556	7,066	4,818
Other comprehensive income (loss)	3,014	3,499	-5,781	-4,781
Comprehensive income	$9,992	$10,926	$6,764	$12,997

Consolidated_Statements_Of_Com1

Consolidated Statements Of Comprehensive Income (Loss) (Parenthetical) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Consolidated Statements Of Comprehensive Income (Loss) [Abstract]	'	'	'	'
Foreign currency translation adjustment, (benefit) tax	$608	$546	$16	$218
Derivative financial instruments adjustment, tax (benefit)	140	904	-174	752
Amortization of prior service costs and net gains or losses, tax	$1,410	$899	$4,083	$2,784

Consolidated_Statements_Of_Cas

Consolidated Statements Of Cash Flows (USD $)	9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012
Cash flows from operating activities:	'	'
Net income	$12,545	$17,778
Adjustments for noncash items:	'	'
Depreciation	28,608	34,470
Amortization of intangibles	5,233	4,047
Deferred income taxes	-4,259	-2,828
Accrued pension and postretirement benefits	10,464	6,258
Net gain on investment accounted for under the fair value method	-100	-9,000
Loss on asset impairments and divestitures	1,254	1,942
Gain on disposal of assets	'	-303
Changes in assets and liabilities, net of effects of acquisitions and divestitures:	'	'
Accounts and other receivables	-13,258	1,652
Inventories	-3,722	-6,319
Income taxes recoverable/payable	2,728	4,122
Prepaid expenses and other	-171	1,783
Accounts payable and accrued expenses	9,905	565
Other, net	-4,346	-4,606
Net cash provided by operating activities	44,881	49,561
Cash flows from investing activities:	'	'
Capital expenditures	-54,734	-20,638
Acquisition, net of cash acquired	561	-3,311
Proceeds from the sale of business	306	'
Proceeds from the sale of assets and other	742	1,141
Net cash used in investing activities	-53,125	-22,808
Cash flows from financing activities:	'	'
Borrowings	55,000	'
Debt principal payments and financing costs	-49,000	-46,354
Dividends paid	-6,780	-4,817
Proceeds from exercise of stock options	2,838	125
Net cash provided by (used in) financing activities	2,058	-51,046
Effect of exchange rate changes on cash	-32	-479
Increase (decrease) in cash and cash equivalents	-6,218	-24,772
Cash and cash equivalents at beginning of period	48,822	68,939
Cash and cash equivalents at end of period	$42,604	$44,167

Consolidated_Statements_Of_Sha

Consolidated Statements Of Shareholders' Equity (USD $)	Common Stock [Member]	Retained Earnings [Member]	Trust For Savings Restoration Plan [Member]	Foreign Currency Translation [Member]	Gain (Loss) On Derivative Financial Instruments [Member]	Pension & Other Post-Retirement Benefit Adjust. [Member]	Total
In Thousands
Balance at Dec. 31, 2012	$15,195	$460,805	($1,401)	$131	$993	($103,471)	$372,252
Net income	'	12,545	'	'	'	'	12,545
Foreign currency translation adjustment (net of tax of $16)	'	'	'	-12,543	'	'	-12,543
Derivative financial instruments adjustment (net of tax benefit of $174)	'	'	'	'	-304	'	-304
Amortization of prior service costs and net gains or losses (net of tax of $4,083)	'	'	'	'	'	7,066	7,066
Cash dividends declared ($.21 per share)	'	-6,780	'	'	'	'	-6,780
Stock-based compensation expense	2,072	'	'	'	'	'	2,072
Issued upon exercise of stock options (including related income tax benefits of $134) & other	2,397	'	'	'	'	'	2,397
Tredegar common stock purchased by trust for savings restoration plan	'	13	-13	'	'	'	'
Balance at Sep. 30, 2013	$19,664	$466,583	($1,414)	($12,412)	$689	($96,405)	$376,705

Consolidated_Statements_Of_Sha1

Consolidated Statements Of Shareholders' Equity (Parenthetical) (USD $)	9 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Sep. 30, 2013
Consolidated Statements Of Shareholders' Equity [Abstract]	'
Foreign currency translation adjustment, tax (benefit)	$16
Derivative financial instruments adjustment, tax (benefit)	-174
Amortization of prior service costs and net gains or losses, tax	4,083
Cash dividends declared, per share	$0.21
Issued upon exercise of stock options, income tax benefit	$134

Basis_Of_Presentation

Basis Of Presentation	9 Months Ended
	Sep. 30, 2013
Basis Of Presentation [Abstract]	'
Basis Of Presentation	'
	1. In the opinion of management, the accompanying consolidated financial statements of Tredegar Corporation and its subsidiaries ("Tredegar," "we," "us" or "our") contain all adjustments necessary to state fairly, in all material respects, Tredegar's consolidated financial position as of September 30, 2013, the consolidated results of operations for the three and nine months ended September 30, 2013 and 2012, the consolidated cash flows for the nine months ended September 30, 2013 and 2012, and the consolidated changes in shareholders' equity for the nine months ended September 30, 2013. All such adjustments, unless otherwise detailed in the notes to the consolidated interim financial statements, are deemed to be of a normal, recurring nature. The financial position data as of December 31, 2012 that is included herein was derived from the audited consolidated financial statements provided in our Annual Report on Form 10-K for the year ended December 31, 2012 ("2012 Form 10-K") but does not include all disclosures required by United States generally accepted accounting principles. These financial statements should be read in conjunction with the consolidated financial statements and related notes included in our 2012 Form 10-K. The results of operations for the three and nine months ended September 30, 2013, are not necessarily indicative of the results to be expected for the full year.

Acquisitions

Acquisitions	9 Months Ended
	Sep. 30, 2013
Acquisitions [Abstract]	'
Acquisitions	'
	2. On October 1, 2012, The William L. Bonnell Company, Inc. acquired 100% ownership of AACOA, Inc. ("AACOA"). AACOA operates production facilities in Elkhart, Indiana and Niles, Michigan. Its primary markets include consumer durables, machinery and equipment and transportation. The acquisition added fabrication capabilities to Aluminum Extrusions' current array of products and services, and provided AACOA with large press capabilities and enhanced geographic sales coverage in a variety of end-use markets.
	In the second quarter of 2013, all post-closing adjustments to the purchase price were resolved. Adjustments to the purchase price were made retrospectively as if the accounting had been completed on the acquisition date. Upon completing these post-closing adjustments, which were primarily related to the resolution of contractual obligations related to income taxes, the total purchase price (net of cash acquired) was $54.1 million, which includes $0.6 million that was received from the seller during the third quarter of 2013. The purchase price was funded using financing secured from our existing $350 million revolving credit facility. Based upon management's valuation of the fair value of tangible and intangible assets (net of cash) acquired and liabilities assumed, the estimated purchase price allocation is as follows:
	(In Thousands)
	Accounts receivable	$	12,477
	Inventories		4,708
	Property, plant & equipment		15,116
	Identifiable intangible assets:
	Customer relationships		4,800
	Trade names		4,800
	Proprietary technology		3,400
	Noncompete agreements		1,600
	Other assets (current & noncurrent)		42
	Trade payables & accrued expenses		(6,574	)
	Total identifiable net assets		40,369
	Purchase price, net of cash received		54,065
	Goodwill	$	13,696
	The goodwill and other intangible asset balances associated with this acquisition are expected to be deductible for tax purposes. Intangible assets acquired in the purchase of AACOA are being amortized over the following periods:
	Identifiable Intangible Asset	Useful Life (Yrs)
	Customer relationships	10
	Proprietary technology	10-Jun
	Trade names	Indefinite
	Noncompete agreements	2
	The financial position and results of operations for AACOA have been consolidated with Tredegar subsequent to October 1, 2012. For the three and nine month periods ended September 30, 2013, the consolidated results of operations included sales of $22.7 million and $67.4 million, respectively, and net income of $0.7 million and $2.0 million, respectively, related to AACOA. The following unaudited supplemental pro forma data presents our consolidated revenues and earnings as if the acquisition of AACOA had been consummated as of January 1, 2012. The pro forma results are not necessarily indicative of our consolidated revenues and earnings if the acquisition and related borrowing had been consummated as of January 1, 2012. Supplemental unaudited pro forma results for the three and nine month periods ended September 30, 2012 are as follows:
			Three Months		Nine Months
	(In Thousands, Except Per Share Data)		Ended September 30, 2012
	Sales	$	238,652	$	713,556
	Income from continuing operations		15,425		31,662
	Earnings per share from continuing operations:
	Basic	$	0.48	$	0.99
	Diluted		0.48		0.98
	The supplemental unaudited pro forma amounts reflect the application of the following adjustments in order to present the consolidated results as if the acquisition and related borrowing had occurred on January 1, 2012:
	Adjustment for additional depreciation and amortization expense associated with the adjustments to property, plant and equipment and intangible assets associated with purchase accounting;
	Additional interest expense and financing fees associated with borrowings from the existing revolving credit facility used to fund the acquisition of AACOA and the elimination of historical interest expense associated with historical borrowings of AACOA that were not assumed by Tredegar;
	Adjustments to eliminate transaction-related expenses associated with the October 2012 acquisition of AACOA;
	Adjustments for the estimated net income tax benefit associated with the previously described adjustments; and
	Adjustments to income tax expense for AACOA as it had previously elected to be treated as an S-Corp for federal income tax purposes.
	On October 14, 2011, TAC Holdings, LLC (the "Buyer") and Tredegar Film Products Corporation ("Film Products"), which are indirect and direct, respectively, wholly-owned subsidiaries of Tredegar, entered into a Membership Interest Purchase Agreement (the "Terphane Purchase Agreement") with Gaucho Holdings, B.V. (the "Seller"), an indirect, wholly-owned subsidiary of Vision Capital Partners VII LP ("Vision Capital"). On October 24, 2011, under the terms of the Terphane Purchase Agreement, the Buyer acquired from the Seller 100% of the outstanding equity interests of Terphane Holdings LLC ("Terphane").
	As of December 31, 2011, the purchase price allocation was preliminary, subject to adjustments for certain terms and conditions under the Terphane Purchase Agreement. In the first quarter of 2012, all post-closing adjustments to the purchase price were resolved. Adjustments to the purchase price were made retrospectively as if the accounting had been completed on the acquisition date. Upon completing these post-closing adjustments, which were primarily related to working capital transferred, the total purchase price (net of cash acquired) was $182.7 million, $3.3 million of which was paid during the first quarter of 2012. The purchase price was funded using available cash (net of cash received) of approximately $57.7 million and financing of $125 million secured from Tredegar's then-existing revolving credit facility.

Discontinued_Operations

Discontinued Operations	9 Months Ended
	Sep. 30, 2013
Discontinued Operations [Abstract]	'
Discontinued Operations	'
	3. On November 20, 2012, Tredegar Real Estate Holdings, Inc., a wholly-owned subsidiary, sold its membership interests in Falling Springs, LLC ("Falling Springs") to Arc Ventures, LC for $16.6 million. Arc Ventures, LC is a Virginia limited liability company affiliated with John D. Gottwald, a member of our Board of Directors. The purchase price was comprised of $12.8 million of cash and 209,576 shares of common stock of Tredegar owned by Arc Ventures, LC.
	The results of operations related to Falling Springs have been classified as discontinued operations for all periods presented. For the three and nine month periods ended September 30, 2012, sales of $2.2 million and $3.0 million, respectively, and net income of $0.3 million and $0.3 million, respectively, have been reclassified to discontinued operations. Falling Springs was formerly a component of the Other segment.
	On February 12, 2008, we sold our aluminum extrusions business in Canada for approximately $25.0 million to an affiliate of H.I.G. Capital. All historical results for this business have been reflected as discontinued operations; however, cash flows for discontinued operations have not been separately disclosed in the consolidated statements of cash flows. Charges of $0.5 million ($0.5 million after taxes) and $14.0 million ($14.0 million after taxes) were made for indemnifications under the purchase agreement related to environmental matters in the third quarter and first nine months of 2013, respectively. Charges of $7.1 million ($7.1 million after taxes) and $11.9 million ($11.9 million after taxes) were made for indemnifications under the purchase agreement related to environmental matters in the third quarter and first nine months of 2012.

Plants_Shutdowns_Asset_Impairm

Plants Shutdowns, Asset Impairments, Restructurings And Other	9 Months Ended
	Sep. 30, 2013
Plants Shutdowns, Asset Impairments, Restructurings And Other [Abstract]	'
Plant Shutdowns, Asset Impairments, Restructurings And Other	'
	4. Plant shutdowns, asset impairments, restructurings and other charges are shown in the net sales and operating profit by segment table in Note 10, 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.
	Plant shutdowns, asset impairments, restructurings and other items in the third quarter of 2013 include:
	Pretax charges of $0.2 million associated with severance and other employee related costs associated with restructurings in Film Products;
	Pretax charge of $0.1 million related to expected future environmental costs at our aluminum extrusions manufacturing facility in Newnan, Georgia (included in "Cost of goods sold" in the consolidated statements of income); and
	Net pretax charge of $45,000 associated with the shutdown of the aluminum extrusions manufacturing facility in Kentland, Indiana.
	Plant shutdowns, asset impairments, restructurings and other items in the first nine months of 2013 include:
	Net pretax charges of $0.6 million associated with the shutdown of the aluminum extrusions manufacturing facility in Kentland, Indiana;
	Pretax charges of $0.3 million associated with severance and other employee related costs associated with restructurings in Film Products;
	Pretax charges of $0.2 million for integration-related expenses and other non-recurring transactions (included in "Selling, general and administrative expenses" in the consolidated statements of income) associated with the acquisition of AACOA by Aluminum Extrusions;
	Pretax charges of $0.2 million related to expected future environmental costs at our aluminum extrusions manufacturing facility in Newnan, Georgia (included in "Cost of goods sold" in the consolidated statements of income); and
	Pretax loss of $0.1 million related to the sale of previously impaired machinery and equipment at our film products manufacturing facility in Shanghai, China (included in "Other income (expense), net" in the consolidated statements of income).
	Results in the third quarter of 2013 include an unrealized loss from the write-down of our investment in Intelliject, Inc. ("Intelliject"), which is accounted for under the fair value method (included in "Other income (expense), net" in the consolidated statements of income), of $3.1 million ($1.9 million after taxes). Results in the first nine months of 2013 include a net unrealized gain from the write-up of our investment in Intelliject of $0.1 million ($0.1 million after taxes), respectively. An unrealized loss (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) on our investment in Harbinger Capital Partners Special Situations Fund, L.P. ("Harbinger Fund") of $0.2 million ($0.1 million after taxes) was recorded in the third quarter of 2013 as a result of a reduction in the value of our investment that is not expected to be temporary. See Note 8 for additional information on investments.
	An unrealized loss on our investment property in Alleghany and Bath County, Virginia (included in "Other income (expense), net" in the consolidated statements of income) of $1.0 million ($0.6 million after taxes) was recorded in the second quarter of 2013 as a result of a reduction in the estimated fair value of our investment that is not expected to be temporary.
	Plant shutdowns, asset impairments, restructurings and other charges in the third quarter of 2012 include:
	Net pretax charge of $0.7 million associated with the shutdown of the aluminum extrusions manufacturing facility in Kentland, Indiana, which includes accelerated depreciation for property, plant and equipment of $0.6 million (included in "Cost of goods sold" in the consolidated statements of income), severance and other employee related expenses of $0.2 million and other shutdown-related charges of $0.7 million, partially offset by adjustments to inventories accounted for under the last-in, first-out ("LIFO") method of $0.5 million (included in "Cost of goods sold" in the consolidated statements of income) and gains on the sale of equipment of $0.3 million (included in "Other income (expense), net" in the consolidated statements of income);
	Pretax charges of $0.3 million for acquisition-related expenses (included in "Selling, general and administrative" expenses in the consolidated statement of income) associated with the acquisition of AACOA by Aluminum Extrusions; and
	Pretax charges of $0.1 million for integration-related expenses and other non-recurring transactions (included in "Selling, general and administrative" expenses in the consolidated statements of income) associated with the acquisition of Terphane by Film Products.
	Plant shutdowns, asset impairments, restructurings and other charges in the first nine months of 2012 include:
	Net pretax charge of $2.7 million associated with the shutdown of the aluminum extrusions manufacturing facility in Kentland, Indiana, which includes accelerated depreciation for property, plant and equipment of $2.4 million (included in "Cost of goods sold" in the consolidated statements of income), severance and other employee related expenses of $1.2 million and other shutdown-related charges of $0.9 million, partially offset by adjustments to inventories accounted for under the LIFO method of $1.5 million (included in "Cost of goods sold" in the consolidated statements of income) and gains on the sale of equipment of $0.3 million (included in "Other income (expense), net" in the consolidated statements of income);
	Pretax charges of $1.0 million for integration-related expenses and other non-recurring transactions (included in "Selling, general and administrative" expenses in the consolidated statements of income) associated with the acquisition of Terphane by Film Products;
	Pretax loss of $0.8 million for asset impairments associated with a previously shutdown film products manufacturing facility in LaGrange, Georgia;
	Pretax charges of $0.3 million for acquisition-related expenses (included in "Selling, general and administrative" expenses in the consolidated statement of income) associated with the acquisition of AACOA by Aluminum Extrusions; and
	Pretax charges of $0.3 million for severance and other employee-related costs in connection with restructurings in Film Products ($0.1 million) and Aluminum Extrusions ($0.2 million).
	Results in the third quarter and first nine months of 2012 include an unrealized gain from the write-up of our investment in Intelliject (included in "Other income (expense), net" in the consolidated statements of income) of $2.7 million ($1.7 million after taxes) and $9.0 million ($5.7 million after taxes), respectively. An unrealized loss (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) on our investment in the Harbinger Fund of $1.1 million ($0.7 million after taxes) was recorded in the first quarter of 2012 as a result of a reduction in the value of our investment that is not expected to be temporary. See Note 8 for additional information on investments.
	A reconciliation of the beginning and ending balances of accrued expenses associated with asset impairments and exit and disposal activities for the nine months ended September 30, 2013 is as follows:
	(In Thousands)		Severance			Other (a)			Total
	Balance at December 31, 2012	$	296		$	585		$	881
	Changes in 2013:
	Charges		273			566			839
	Cash spent		(390	)		(786	)		(1,176	)
	Balance at September 30, 2013	$	179		$	365		$	544
	(a) Other includes other shutdown-related costs associated with the shutdown of our aluminum extrusions manaufacturing facility in Kentland, Indiana.

Inventories

Inventories	9 Months Ended
	Sep. 30, 2013
Inventories [Abstract]	'
Inventories	'
	5. The components of inventories are as follows:
			September 30,		December 31,
	(In Thousands)		2013		2012
	Finished goods	$	16,405	$	16,138
	Work-in-process		8,816		7,451
	Raw materials		28,282		28,758
	Stores, supplies and other		23,246		22,323
	Total	$	76,749	$	74,670
	During the first nine months of 2012, certain inventories accounted for on a LIFO basis declined permanently, which resulted in cost of goods sold being stated at below current replacement costs by approximately $1.5 million in Aluminum Extrusions.

Earnings_Per_Share

Earnings Per Share	9 Months Ended
	Sep. 30, 2013
Earnings Per Share [Abstract]	'
Earnings Per Share	'
	6. Basic earnings per share is computed by dividing net income by the weighted average number of shares of common stock outstanding. Diluted earnings per share is computed by dividing net income by the weighted average common and potentially dilutive common equivalent shares outstanding, determined as follows:
		Three Months		Nine Months
		Ended September 30		Ended September 30
	(In Thousands)	2013	2012	2013	2012
	Weighted average shares outstanding used
	to compute basic earnings per share	32,201	32,052	32,155	32,038
	Incremental dilutive shares attributable to stock
	options and restricted stock	457	49	436	160
	Shares used to compute diluted earnings
	per share	32,658	32,101	32,591	32,198
	Incremental shares attributable to stock options and restricted stock are computed using the average market price during the related period. During the three and nine months ended September 30, 2013 average out-of-the-money options to purchase shares were excluded from the calculation of incremental shares attributable to stock options and restricted stock were 60,100 and 40,056, respectively, and for the three and nine months ended September 30, 2012, average out-of-the-money options to purchase shares were excluded from the calculation of incremental shares attributable to stock options and restricted stock were 1,023,733 and 692,600, respectively.

Accumulated_Other_Comprehensiv

Accumulated Other Comprehensive Income (Loss)	9 Months Ended
	Sep. 30, 2013
Accumulated Other Comprehensive Income (Loss) [Abstract]	'
Accumulated Other Comprehensive Income (Loss)	'
	7. The following table summarizes the after-tax changes in accumulated other comprehensive income (loss) for the nine months ended September 30, 2013:
									Pension and
			Foreign			Gain (loss) on			other post-
			currency			derivative			retirement
			translation			financial			benefit
	(In Thousands)		adjustment			instruments			adjustments			Total
	Beginning balance, January 1, 2013	$	131		$	993		$	(103,471	)	$	(102,347	)
	Other comprehensive income (loss)
	before reclassifications		(12,543	)		(44	)		-			(12,587	)
	Amounts reclassified from accumulated
	other comprehensive income (loss)		-			(260	)		7,066			6,806
	Net other comprehensive income (loss) -
	current period		(12,543	)		(304	)		7,066			(5,781	)
	Ending balance, September 30, 2013	$	(12,412	)	$	689		$	(96,405	)	$	(108,128	)
	Reclassifications of balances out of accumulated other comprehensive income (loss) into net income for the three month period ended September 30, 2013 are summarized as follows:
					Location of gain
					(loss) reclassified
			Amount		from accumulated
			reclassified from		other
			other		comprehensive
			comprehensive		income to net
	(In Thousands)		income		income
	Gain (loss) on dervative financial
	instruments:
	Aluminum future contracts, before taxes	$	(268	)	Cost of sales
	Foreign currency forward contracts, before taxes		-
	Total, before taxes		(268	)
	Income taxexpense (benefit)		(101	)	Income taxes
	Total, net of tax	$	(167	)
	Amortization of pension and other post-
	retirement benefits:
	Actuarial gain (loss) and prior service
	costs, before taxes	$	(3,851	)	(a)
	Income taxexpense (benefit)		(1,410	)	Income taxes
	Total, net of tax	$	(2,441	)
	(a) This component of accumulated other comprehensive income is included in the computation of net periodic pension cost (see Note 10 for additional detail).
	Reclassifications of balances out of accumulated other comprehensive income (loss) into net income for the nine month period ended September 30, 2013 are summarized as follows:
					Location of gain
					(loss) reclassified
			Amount		from accumulated
			reclassified from		other
			other		comprehensive
			comprehensive		income to net
	(In Thousands)		income		income
	Gain (loss) on dervative financial
	instruments:
	Aluminum future contracts, before taxes	$	(417	)	Cost of sales
	Foreign currency forward contracts, before taxes		-
	Total, before taxes		(417	)
	Income tax expense (benefit)		(157	)	Income taxes
	Total, net of tax	$	(260	)
	Amortization of pension and other post-
	retirement benefits:
	Actuarial gain (loss) and prior service
	costs, before taxes	$	(11,149	)	(a)
	Income tax expense (benefit)		(4,083	)	Income taxes
	Total, net of tax	$	(7,066	)
	(a) This component of accumulated other comprehensive income is included in the computation of net periodic pension cost (see Note 10 for additional detail).

Investments

Investments	9 Months Ended
	Sep. 30, 2013
Investments [Abstract]	'
Investments	'
	8.   In August 2007 and December 2008, we made an aggregate investment of $7.5 million in Intelliject, a privately held specialty pharmaceutical company. Intelliject seeks to set a new standard in drug/device combination pharmaceuticals designed to enable superior treatment outcomes, improved cost effectiveness and intuitive patient administration. Our ownership interest on a fully diluted basis is approximately 20%, and the investment is accounted for under the fair value method. At the time of our initial investment, we elected the fair value option over the equity method of accounting since our investment objectives were similar to those of venture capitalists, which typically do not have controlling financial interests.
	At September 30, 2013 and December 31, 2012, the estimated fair value of our investment (also the carrying value included in "Other assets and deferred charges" in our balance sheet) was $33.8 million and $33.7 million, respectively. The fair value estimates are based upon significant unobservable (Level 3) inputs since there is no secondary market for our ownership interest. Accordingly, until the next round of financing or other significant financial transaction, value estimates will primarily be based on assumptions relating to meeting product development and commercialization milestones, corresponding cash flow projections (projections of sales, costs, expenses, capital expenditures and working capital investment) and discounting of these factors for the high degree of risk. Adjustments to the estimated fair value of our investment will be made in the period during which changes can be quantified.
	We recognized an unrealized loss on our investment in Intelliject (included in "Other income (expense), net" in the consolidated statements of income) of $3.1 million in the third quarter of 2013 and a net unrealized gain of $0.1 million in the first nine months of 2013. The unrealized loss in the third quarter of 2013 was primarily related to adjustments in the fair value due to a reassessment of the amount and timing of the projected receipt of royalty and milestone payments from commercial sales of Intelliject's licensed product, which launched in early 2013, and increased development and commercialization expenses related to its pipeline products, partially offset by the impact of the passage of time as anticipated cash flows associated with achieving product development and commercialization milestones are discounted at 55% for their high degree of risk. The net unrealized gain in the first nine months of 2013 was primarily related to 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 55% for their high degree of risk, offset by adjustments in the fair value due to a reassessment of the amount and timing of projected receipt of royalty and milestone payments from commercial sales of Intelliject's licensed product, which launched in early 2013, and increased development and commercialization expenses related to its pipeline products.
	We recognized an unrealized gain on our investment in Intelliject (included in "Other income (expense), net" in the consolidated statements of income) of $2.7 million and $9.0 million in the third quarter and first nine months of 2012, respectively. The unrealized gain in the third quarter of 2012 was primarily related to 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 55% for their high degree of risk. The unrealized gain in the second quarter of 2012 was primarily attributed to the appreciation of our ownership interest to reflect insights from a new marketing study for its first product, which resulted in a favorable adjustment to the timing and amount of anticipated cash flows from an upcoming product introduction and achieving related milestones. The unrealized gain in the first quarter of 2012 was primarily attributed to the appreciation of our ownership interest after the weighted average cost of capital used to discount cash flows in our valuation of the specialty pharmaceutical company was reduced to reflect the completion of certain process testing and a reassessment of the risk associated with the timing for obtaining final marketing approval from the U.S. Food and Drug Administration for its first product.
	The fair market valuation of our interest in Intelliject 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 our interest in Intelliject was 55% at September 30, 2013 and December 31, 2012. At September 30, 2013, the effect of a 500 basis point decrease in the weighted average cost of capital assumption would have further increased the fair value of our interest in Intelliject by approximately $5 million, and a 500 basis point increase in the weighted average cost of capital assumption would have decreased the fair value of our interest by approximately $4 million.
	Had we not elected to account for our investment under the fair value method, we would have been required to use the equity method of accounting. The condensed unaudited balance sheets for Intelliject at September 30, 2013 and December 31, 2012 and condensed unaudited statements of operations for the three and nine month periods ended September 30, 2013 and 2012, as reported to us by Intelliject, are provided below:
			September 30,		December 31,				September 30,		December 31,
	(In Thousands)		2013		2012				2013		2012
	Assets:						Liabilities & Equity:
	Cash & cash equivalents	$	32,198	$	53,288		Long term debt, current portion	$	3,997	$	-
	Other current assets		9,289		686		Other current liabilities		4,242		13,405
	Patents		2,331		2,152		Non-current liabilities		2,895		1,449
	Other long-term assets		9,737		4,278		Long term debt, net of discount		10,766		14,696
							Redeemable preferred stock		21,724		20,995
							Equity		9,931		9,859
	Total assets	$	53,555	$	60,404		Total liabilities & equity	$	53,555	$	60,404
			Three Months Ended						Nine Months Ended
			September 30,						September 30,
			2013			2012			2013			2012
	Revenues & Expenses:
	Royalty revenues	$	7,904		$	-		$	12,420		$	-
	Expenses and other, net		(5,604	)		(3,089	)		(12,515	)		(8,026	)
	Income tax (expense) benefit		(912	)		1,209			322			3,100
	Net income (loss)	$	1,388		$	(1,880	)	$	227		$	(4,926	)
	Our investment in the Harbinger Fund had a carrying value (included in "Other assets and deferred charges") of $3.2 million at September 30, 2013, compared with $3.6 million at December 31, 2012. The carrying value at September 30, 2013 reflected Tredegar's cost basis in its investment in the Harbinger Fund, net of total withdrawal proceeds received and unrealized losses.
	We recorded an unrealized loss of $0.2 million ($0.1 million after taxes) in the third quarter of 2013 and $1.1 million ($0.7 million after taxes) in the first quarter of 2012 on our investment in the Harbinger Fund (included in "Other income (expense), net" in the consolidated statements of income) as a result of a reduction in the value of our investment that is not expected to be temporary. Withdrawal proceeds were $0.2 million and $0.5 million in the first nine months of 2013 and 2012, respectively. The timing and amount of future installments of withdrawal proceeds, which commenced in August 2010, were not known as of September 30, 2013. Gains on our investment in the Harbinger Fund will be recognized when the amounts expected to be collected from our withdrawal from the investment are known, which will likely be when cash in excess of our remaining carrying value is received. Losses will be recognized when management believes it is probable that future withdrawal proceeds will not exceed the remaining carrying value.
	We have investment property in Alleghany and Bath County, Virginia. Our carrying value in this investment property (included in "Other assets and deferred charges" on the consolidated balance sheets) was $5.9 million at September 30, 2013 and $6.9 million at December 31, 2012.

Derivative_Financial_Instrumen

Derivative Financial Instruments	9 Months Ended
	Sep. 30, 2013
Derivative Financial Instruments [Abstract]	'
Derivative Financial Instruments	'
	9. We use 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 due to specified transactions. When possible, our derivative financial instruments are designated as and qualify as cash flow hedges and are recognized in the balance sheet at fair value. A change in the fair value of derivatives that are highly effective and that are designated and qualify as cash flow hedges is recorded in other comprehensive income (loss). 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. 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 was not material to the third quarter and first nine months of 2013 and 2012.
	The fair value of derivative instruments recorded on the consolidated balance sheets are based upon Level 2 inputs within the corresponding commodity or foreign currency markets. If individual derivative instruments with the same counterparty can be settled on a net basis, we record the corresponding derivative fair values as a net asset or net liability.
	In the normal course of business, we enter 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 our margin exposure created from the fixing of future sales prices relative to volatile raw material (aluminum) costs, we enter 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 $4.6 million (4.7 million pounds of aluminum) at September 30, 2013 and $6.2 million (6.7 million pounds of aluminum) at December 31, 2012.
	The table below summarizes the location and gross amounts of aluminum futures contract fair values in the consolidated balance sheets as of September 30, 2013 and December 31, 2012:
		30-Sep-13				31-Dec-12
		Balance Sheet		Fair		Balance Sheet	Fair
	(In Thousands)	Account	Value			Account	Value
	Derivatives Designated as Hedging Instruments
	Asset derivatives:					Prepaid expenses
	Aluminum futures contracts	Accrued expenses	$	5		and other	$	226
	Liability derivatives:					Prepaid expense
	Aluminum futures contracts	Accrued expenses	$	223		and other	$	88
	Net asset (liability)		$	(218	)		$	138
	In the event that the counterparty to an aluminum fixed-price forward sales contract chooses to not take delivery of its aluminum extrusions, the customer is contractually obligated to compensate us for any losses on the related aluminum futures and/or forward purchase contracts through the date of cancellation. The offsetting asset and liability positions for derivatives not designated as hedging instruments (none at September 30, 2013 and December 31, 2012) are associated with the unwinding of aluminum futures contracts that relate to such cancellations.
	We have future fixed Euro-denominated contractual payments for equipment being purchased as part of our multi-year capacity expansion project at our film products manufacturing facility in Cabo de Santo Agostinho, Brazil. We are using fixed rate Euro forward contracts with various settlement dates through November 2013 to hedge exchange rate exposure on these obligations. We had fixed rate forward contracts with outstanding notional amounts of €2.2 million and €9.9 million as of September 30, 2013 and December 31, 2012, respectively.
	The table below summarizes the location and gross amounts of foreign currency forward contract fair values in the consolidated balance sheets as of September 30, 2013 and December 31, 2012:
		30-Sep-13			31-Dec-12
		Balance Sheet		Fair	Balance Sheet	Fair
	(In Thousands)	Account	Value		Account	Value
	Derivatives Designated as Hedging Instruments
	Asset derivatives:	Prepaid expenses			Prepaid expenses
	Foreign currency forward contracts	and other	$	252	and other	$	948
	Net asset (liability)		$	252		$	948
	These derivative contracts involve elements of market risk that are not reflected on our consolidated balance sheet, including the risk of dealing with counterparties and their ability to meet the terms of the contracts. The counterparties to our forward purchase commitments are major aluminum brokers and suppliers, and the counterparties to our aluminum futures contracts are major financial institutions. Fixed-price forward sales contracts are only made available to our best and most credit-worthy customers. The counterparties to our foreign currency futures and zero-cost collar contracts are major financial institutions.
	The effect on net income and other comprehensive income (loss) of derivative instruments classified as cash flow hedges and described in the previous paragraphs for the three and nine month periods ended September 30, 2013 and 2012 is summarized in the table below:
	(In Thousands)		Cash Flow Derivative Hedges
			Aluminum Futures						Foreign Currency
			Contracts						Forwards
			Three Months Ended September 30,
			2013			2012			2013			2012
	Amount of pre-taxgain (loss) recognized in
	other comprehensive income	$	(11	)	$	(617	)	$	122		$	1,132
	Location of gain (loss) reclassified from
	accumulated other comprehensive income		Cost of			Cost of
	into net income (effective portion)		sales			sales
	Amount of pre-taxgain (loss) reclassified
	from accumulated other comprehensive
	income to net income (effective portion)	$	(268	)	$	(600	)	$	-		$	-
			Aluminum Futures						Foreign Currency
			Contracts						Forwards
			Nine Months Ended September 30,
			2013			2012			2013			2012
	Amount of pre-taxgain (loss) recognized in
	other comprehensive income	$	(775	)	$	(1,317	)	$	(123	)	$	1,132
	Location of gain (loss) reclassified from
	accumulated other comprehensive income		Cost of			Cost of
	into net income (effective portion)		sales			sales
	Amount of pre-taxgain (loss) reclassified
	from accumulated other comprehensive
	income to net income (effective portion)	$	(417	)	$	(902	)	$	-		$	-
	As of September 30, 2013, we expect $0.1 million of unrealized after-tax losses on derivative instruments reported in accumulated other comprehensive income (loss) to be reclassified to earnings within the next twelve months. For the three and nine month periods ended September 30, 2013 and 2012, net gains or losses realized on previously unrealized net gains or losses from hedges that had been discontinued were not material.

Pension_And_Other_PostRetireme

Pension And Other Post-Retirement Benefits	9 Months Ended
	Sep. 30, 2013
Pension And Other Post-Retirement Benefits [Abstract]	'
Pension And Other Post-Retirement Benefits	'
	10. The components of net periodic benefit cost for our pension and other post-retirement benefit programs reflected in consolidated results are shown below:
			Pension						Other Post-Retirement
			Benefits for Three Months						Benefits for Three Months
			Ended September 30						Ended September 30
	(In Thousands)		2013			2012			2013			2012
	Service cost	$	(1,076	)	$	(1,028	)	$	(18	)	$	(17	)
	Interest cost		(3,039	)		(3,236	)		(89	)		(88	)
	Expected return on plan assets		4,415			4,709			-			-
	Amortization of prior service costs, gains or
	losses and net transition asset		(3,892	)		(2,529	)		41			74
	Curtailment charge		-			(99	)		-			-
	Net periodic benefit cost	$	(3,592	)	$	(2,183	)	$	(66	)	$	(31	)
			Pension						Other Post-Retirement
			Benefits for Nine Months						Benefits for Nine Months
			Ended September 30						Ended September 30
			2013			2012			2013			2012
	Service cost	$	(2,816	)	$	(2,743	)	$	(53	)	$	(43	)
	Interest cost		(9,253	)		(9,813	)		(266	)		(289	)
	Expected return on plan assets		13,073			14,331			-			-
	Amortization of prior service costs, gains or
	losses and net transition asset		(11,271	)		(7,782	)		122			180
	Curtailment charge		-			(99	)		-			-
	Net periodic benefit cost	$	(10,267	)	$	(6,106	)	$	(197	)	$	(152	)
	Pension and other postretirement liabilities for continuing operations of $86.1 million and $91.2 million are included in "Other noncurrent liabilities" in the consolidated balance sheets at September 30, 2013 and December 31, 2012, respectively. Our required contributions are expected to be approximately $0.2 million in 2013, and we made an additional discretionary contribution of $5.0 million to our underfunded pension plan in the third quarter of 2013. We fund our other post-retirement benefits (life insurance and health benefits) on a claims-made basis, which were $0.3 million for the year ended December 31, 2012.

Segment_Reporting

Segment Reporting	9 Months Ended
	Sep. 30, 2013
Segment Reporting [Abstract]	'
Segment Reporting	'
	11.	Our primary business segments are Film Products and Aluminum Extrusions. In February 2010, we started reporting an additional segment, Other, comprised of the start-up operations of Bright View Technologies Corporation ("Bright View") and Falling Springs. Effective January 1, 2012, the operations and results of Bright View were incorporated into Film Products to leverage research and development efforts and accelerate new product development. As discussed in Note 3, Falling Springs was divested in the fourth quarter of 2012. All historical results for this business have been reflected as discontinued operations. With the sale of Falling Springs, there is no longer an Other segment to report.
	Information by business segment is reported below. There are no accounting transactions between segments and no allocations to segments. Net sales (sales less freight) and operating profit from ongoing operations are the measures of sales and operating profit used by the chief operating decision maker for purposes of assessing performance.
	The following table presents net sales and operating profit by segment for the three and nine month periods ended September 30, 2013 and 2012:
			Three Months						Nine Months
			Ended September 30						Ended September 30
	(In Thousands)		2013			2012			2013			2012
	Net Sales
	Film Products	$	157,187		$	155,296		$	469,838		$	459,221
	AluminumExtrusions		78,499			55,222			236,293			172,525
	Total net sales		235,686			210,518			706,131			631,746
	Add back freight		7,508			6,130			22,119			17,404
	Sales as shown in the Consolidated Statements of Income		243,194			216,648			728,250			649,150
	Operating Profit
	Film Products:
	Ongoing operations		19,617			21,092			55,351			49,999
	Plant shutdowns, asset impairments, restructurings and other		(155	)		(87	)		(364	)		(1,879	)
	AluminumExtrusions:
	Ongoing operations		3,426			1,846			12,351			7,349
	Plant shutdowns, asset impairments, restructurings and other		(160	)		(1,067	)		(958	)		(3,214	)
	Total		22,728			21,784			66,380			52,255
	Interest income		138			84			307			337
	Interest expense		727			708			2,132			2,732
	Gain (loss) on investment accounted for under fair value method		(3,100	)		2,700			100			9,000
	Unrealized loss on investment property		-			-			1,018			-
	Stock option-based compensation costs		260			386			859			1,147
	Corporate expenses, net		8,414			4,788			24,058			17,060
	Income from continuining operations before income taxes		10,365			18,686			38,720			40,653
	Income taxes from continuing operations		2,937			4,476			12,185			11,318
	Income from continuing operations		7,428			14,210			26,535			29,335
	Loss from discontinued operations		(450	)		(6,783	)		(13,990	)		(11,557	)
	Net income	$	6,978		$	7,427		$	12,545		$	17,778
	The following table presents identifiable assets by segment at September 30, 2013 and December 31, 2012:
			September 30,		December 31,
	(In Thousands)		2013		2012
	Film Products	$	572,681	$	551,842
	Aluminum Extrusions		129,005		129,279
	Subtotal		701,686		681,121
	General corporate		49,004		53,222
	Cash and cash equivalents		42,604		48,822
	Total	$	793,294	$	783,165

Income_Taxes

Income Taxes	9 Months Ended
	Sep. 30, 2013
Income Taxes [Abstract]	'
Income Taxes	'
	12. The effective tax rate for income from continuing operations in the first nine months of 2013 was 31.5% compared to 27.8% in the first nine months of 2012. The significant differences between the U.S. federal statutory rate and the effective income tax rate for continuing operations for the nine months ended September 30, 2013 and 2012 are as follows:
		Percent of Income
		Before Income Taxes
	Nine Months Ended September 30	2013		2012
	Income taxexpense at federal statutory rate	35		35
	State taxes, net of federal income taxbenefit	2.2		1.4
	Valuation allowance for capital loss carry-forwards	1.1		3.3
	Unremitted earnings from foreign operations	1.1		0.7
	Valuation allowance for foreign operating loss carry-forwards	0.9		0.3
	Income taxcontingency accruals/reversals	0.9		(.3	)
	Non-deductible expenses	0.8		0.2
	Changes in estimates related to prior year taxprovision	(.3	)	0.1
	Research and development taxcredit	(1.4	)	-
	Domestic production activities deduction	(1.5	)	(.4	)
	Foreign rate differences	(2.3	)	(3.3	)
	Foreign taxincentives	(4.8	)	(9.3	)
	Other	(.2	)	0.1
	Effective income taxrate for income from continuing operations	31.5		27.8
	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 effective tax rate of 15.25% for Terphane Ltda. (6.25% of income tax and 9.0% social contribution on income). The current incentives will expire at the end of 2014, but we anticipate that we will qualify for additional incentives that will extend beyond 2014. The benefit from tax incentives was $1.9 million (6 cents per share) and $3.8 million (12 cents per share) in the first nine months of 2013 and 2012, respectively.
	Income taxes include the recognition of an additional valuation allowance of $0.4 million in the first nine months of 2013 and $1.3 million for the first nine months of 2012 related to expected limitations on the utilization of assumed capital losses on certain investments recognized in previous years.
	Tredegar and its subsidiaries file income tax returns in the U.S., various states and jurisdictions outside the U.S. Except for refund claims and amended returns, the Internal Revenue Service has provided written confirmation that they do not plan to make any additional changes to our U.S. consolidated tax returns for the years prior to 2010, although the federal statute of limitations was extended for the tax years 2006-2009 through December 31, 2013. With few exceptions, Tredegar and its subsidiaries are no longer subject to state or non-U.S. income tax examinations by tax authorities for years before 2009.

Contingencies

Contingencies	9 Months Ended
	Sep. 30, 2013
Contingencies [Abstract]	'
Contingencies	'
	13. In 2011, we were 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 antidumping duty order on imported PET films from Brazil. We contested the applicability of these antidumping duties to the films exported by Terphane, and we filed a request with the U.S. Department of Commerce ("Commerce") for clarification about whether the film products at issue are within the scope of the antidumping 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 antidumping 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.

New_Accounting_Pronouncements

New Accounting Pronouncements	9 Months Ended
	Sep. 30, 2013
New Accounting Pronouncements [Abstract]	'
New Accounting Pronouncements	'
	14. In January 2013, the Financial Accounting Standards Board ("FASB") issued guidance clarifying the scope of disclosures about offsetting assets and liabilities. The scope of the balance sheet offsetting disclosures, contained in the new guidance, is limited to recognized derivative instruments, repurchase agreements and reverse repurchase agreements and securities borrowing and lending transactions. The balance sheet offsetting disclosures require the presentation of gross and net information about transactions that are (1) offset in the financial statements or (2) subject to master netting arrangements, regardless of whether the transactions are actually offset in the statement of position. The disclosure requirements are effective for annual and interim periods beginning after January 1, 2013. We have complied with the requirements of this FASB accounting standard in 2013.
	In February 2013, the FASB issued updated guidance for reporting of amounts reclassified out of the various components of accumulated other comprehensive income. The revised standard requires, among other things, that an entity present, either parenthetically on the face of the financial statements or in the notes, significant amounts reclassified from each component of accumulated other comprehensive income and the income statement line items affected by the reclassification. The revised standard is effective for annual and interim periods beginning after December 15, 2012. We have complied with the requirements of this FASB accounting standard in 2013.
	In February 2013, the FASB issued updated guidance to address the recognition, measurement and disclosure of obligations resulting from joint and several liability arrangements for which the total amount under the arrangement is fixed at the reporting date. Under the new guidance, an entity would measure its obligation from a joint and several liability arrangement as the sum of the amount the entity agreed with its co-obligors that it will pay, and any additional amount the entity expects to pay on behalf of its co-obligors. The standard is effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2013. Early application is permitted, and we do not expect the guidance to impact us.
	In March 2013, the FASB issued updated guidance related to foreign currency matters. The updated guidance attempts to resolve the diversity in practice about the release of the cumulative translation adjustment into net income when a parent either sells a part or all of its investment in a foreign entity or no longer holds a controlling financial interest in a subsidiary or group of assets that is a nonprofit activity or a business (other than a sale of in substance real estate or conveyance of oil and gas mineral rights) within a foreign entity. In addition, the amended guidance attempts to resolve the diversity in practice for the treatment of business combinations achieved in stages involving a foreign entity. The guidance is effective for the first annual period beginning after December 15, 2013, and we do expect the guidance to impact us.
	In July 2013, the FASB issued new guidance regarding the presentation of an unrecognized tax benefit when a net operating loss carryforward, a similar tax loss, or a tax credit carryforward exists. The new guidance requires an unrecognized tax benefit be presented in the financial statements as a reduction to a deferred tax asset for a net operating loss carryforward, a similar tax loss, or a tax credit carryforward, unless certain exceptions are met. The amendments are effective prospectively for fiscal and interim periods beginning after December 15, 2013. We are still assessing the applicability of this guidance in future periods.

Acquisitions_Tables

Acquisitions (Tables)	9 Months Ended
	Sep. 30, 2013
Acquisitions [Abstract]	'
Schedule Of Purchase Price Allocation	'
	(In Thousands)
	Accounts receivable	$	12,477
	Inventories		4,708
	Property, plant & equipment		15,116
	Identifiable intangible assets:
	Customer relationships		4,800
	Trade names		4,800
	Proprietary technology		3,400
	Noncompete agreements		1,600
	Other assets (current & noncurrent)		42
	Trade payables & accrued expenses		(6,574	)
	Total identifiable net assets		40,369
	Purchase price, net of cash received		54,065
	Goodwill	$	13,696
Schedule Of Amortization Periods For Acquired Intangible Assets	'
	Identifiable Intangible Asset	Useful Life (Yrs)
	Customer relationships	10
	Proprietary technology	10-Jun
	Trade names	Indefinite
	Noncompete agreements	2
Schedule Of Supplemental Unaudited Pro Forma Results	'
			Three Months		Nine Months
	(In Thousands, Except Per Share Data)		Ended September 30, 2012
	Sales	$	238,652	$	713,556
	Income from continuing operations		15,425		31,662
	Earnings per share from continuing operations:
	Basic	$	0.48	$	0.99
	Diluted		0.48		0.98

Plant_Shutdowns_Asset_Impairme

Plant Shutdowns, Asset Impairments, Restructurings And Other (Tables)	9 Months Ended
	Sep. 30, 2013
Plants Shutdowns, Asset Impairments, Restructurings And Other [Abstract]	'
Schedule Of Accrued Expenses Associated With Asset Impairments And Exit And Disposal Activities	'
	(In Thousands)		Severance			Other (a)			Total
	Balance at December 31, 2012	$	296		$	585		$	881
	Changes in 2013:
	Charges		273			566			839
	Cash spent		(390	)		(786	)		(1,176	)
	Balance at September 30, 2013	$	179		$	365		$	544
	(a) Other includes other shutdown-related costs associated with the shutdown of our aluminum extrusions manaufacturing facility in Kentland, Indiana.

Inventories_Tables

Inventories (Tables)	9 Months Ended
	Sep. 30, 2013
Inventories [Abstract]	'
Schedule Of Components Of Inventories	'
			September 30,		December 31,
	(In Thousands)		2013		2012
	Finished goods	$	16,405	$	16,138
	Work-in-process		8,816		7,451
	Raw materials		28,282		28,758
	Stores, supplies and other		23,246		22,323
	Total	$	76,749	$	74,670

Earnings_Per_Share_Tables

Earnings Per Share (Tables)	9 Months Ended
	Sep. 30, 2013
Earnings Per Share [Abstract]	'
Schedule Of Calculation Of Numerator And Denominator In Earnings Per Share	'
		Three Months		Nine Months
		Ended September 30		Ended September 30
	(In Thousands)	2013	2012	2013	2012
	Weighted average shares outstanding used
	to compute basic earnings per share	32,201	32,052	32,155	32,038
	Incremental dilutive shares attributable to stock
	options and restricted stock	457	49	436	160
	Shares used to compute diluted earnings
	per share	32,658	32,101	32,591	32,198

Accumulated_Other_Comprehensiv1

Accumulated Other Comprehensive Income (Loss) (Tables)	9 Months Ended
	Sep. 30, 2013
Accumulated Other Comprehensive Income (Loss) [Abstract]	'
Schedule Of After-Tax Changes In Accumulated Other Comprehensive Income (Loss)	'
									Pension and
			Foreign			Gain (loss) on			other post-
			currency			derivative			retirement
			translation			financial			benefit
	(In Thousands)		adjustment			instruments			adjustments			Total
	Beginning balance, January 1, 2013	$	131		$	993		$	(103,471	)	$	(102,347	)
	Other comprehensive income (loss)
	before reclassifications		(12,543	)		(44	)		-			(12,587	)
	Amounts reclassified from accumulated
	other comprehensive income (loss)		-			(260	)		7,066			6,806
	Net other comprehensive income (loss) -
	current period		(12,543	)		(304	)		7,066			(5,781	)
	Ending balance, September 30, 2013	$	(12,412	)	$	689		$	(96,405	)	$	(108,128	)
Schedule Of Reclassifications Of Balances Out Of Accumulated Other Comprehensive Income (Loss) Into Net Income	'
					Location of gain
					(loss) reclassified
			Amount		from accumulated
			reclassified from		other
			other		comprehensive
			comprehensive		income to net
	(In Thousands)		income		income
	Gain (loss) on dervative financial
	instruments:
	Aluminum future contracts, before taxes	$	(268	)	Cost of sales
	Foreign currency forward contracts, before taxes		-
	Total, before taxes		(268	)
	Income taxexpense (benefit)		(101	)	Income taxes
	Total, net of tax	$	(167	)
	Amortization of pension and other post-
	retirement benefits:
	Actuarial gain (loss) and prior service
	costs, before taxes	$	(3,851	)	(a)
	Income taxexpense (benefit)		(1,410	)	Income taxes
	Total, net of tax	$	(2,441	)
	(a) This component of accumulated other comprehensive income is included in the computation of net periodic pension cost (see Note 10 for additional detail).
					Location of gain
					(loss) reclassified
			Amount		from accumulated
			reclassified from		other
			other		comprehensive
			comprehensive		income to net
	(In Thousands)		income		income
	Gain (loss) on dervative financial
	instruments:
	Aluminum future contracts, before taxes	$	(417	)	Cost of sales
	Foreign currency forward contracts, before taxes		-
	Total, before taxes		(417	)
	Income tax expense (benefit)		(157	)	Income taxes
	Total, net of tax	$	(260	)
	Amortization of pension and other post-
	retirement benefits:
	Actuarial gain (loss) and prior service
	costs, before taxes	$	(11,149	)	(a)
	Income tax expense (benefit)		(4,083	)	Income taxes
	Total, net of tax	$	(7,066	)
	(a) This component of accumulated other comprehensive income is included in the computation of net periodic pension cost (see Note 10 for additional detail).

Investments_Tables

Investments (Tables)	9 Months Ended
	Sep. 30, 2012
Investments [Abstract]	'
Schedule Of Fair Value Method Investments, Balance Sheets And Income Statements	'
			September 30,		December 31,				September 30,		December 31,
	(In Thousands)		2013		2012				2013		2012
	Assets:						Liabilities & Equity:
	Cash & cash equivalents	$	32,198	$	53,288		Long term debt, current portion	$	3,997	$	-
	Other current assets		9,289		686		Other current liabilities		4,242		13,405
	Patents		2,331		2,152		Non-current liabilities		2,895		1,449
	Other long-term assets		9,737		4,278		Long term debt, net of discount		10,766		14,696
							Redeemable preferred stock		21,724		20,995
							Equity		9,931		9,859
	Total assets	$	53,555	$	60,404		Total liabilities & equity	$	53,555	$	60,404
			Three Months Ended						Nine Months Ended
			September 30,						September 30,
			2013			2012			2013			2012
	Revenues & Expenses:
	Royalty revenues	$	7,904		$	-		$	12,420		$	-
	Expenses and other, net		(5,604	)		(3,089	)		(12,515	)		(8,026	)
	Income tax (expense) benefit		(912	)		1,209			322			3,100
	Net income (loss)	$	1,388		$	(1,880	)	$	227		$	(4,926	)

Derivative_Financial_Instrumen1

Derivative Financial Instruments (Tables)	9 Months Ended
	Sep. 30, 2013
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	'
	(In Thousands)		Cash Flow Derivative Hedges
			Aluminum Futures						Foreign Currency
			Contracts						Forwards
			Three Months Ended September 30,
			2013			2012			2013			2012
	Amount of pre-taxgain (loss) recognized in
	other comprehensive income	$	(11	)	$	(617	)	$	122		$	1,132
	Location of gain (loss) reclassified from
	accumulated other comprehensive income		Cost of			Cost of
	into net income (effective portion)		sales			sales
	Amount of pre-taxgain (loss) reclassified
	from accumulated other comprehensive
	income to net income (effective portion)	$	(268	)	$	(600	)	$	-		$	-
			Aluminum Futures						Foreign Currency
			Contracts						Forwards
			Nine Months Ended September 30,
			2013			2012			2013			2012
	Amount of pre-taxgain (loss) recognized in
	other comprehensive income	$	(775	)	$	(1,317	)	$	(123	)	$	1,132
	Location of gain (loss) reclassified from
	accumulated other comprehensive income		Cost of			Cost of
	into net income (effective portion)		sales			sales
	Amount of pre-taxgain (loss) reclassified
	from accumulated other comprehensive
	income to net income (effective portion)	$	(417	)	$	(902	)	$	-		$	-
Aluminum Futures Contracts [Member]	'
Derivatives, Fair Value [Line Items]	'
Summary Of Location And Fair Value Of Derivative Financial Instruments	'
		30-Sep-13				31-Dec-12
		Balance Sheet		Fair		Balance Sheet	Fair
	(In Thousands)	Account	Value			Account	Value
	Derivatives Designated as Hedging Instruments
	Asset derivatives:					Prepaid expenses
	Aluminum futures contracts	Accrued expenses	$	5		and other	$	226
	Liability derivatives:					Prepaid expense
	Aluminum futures contracts	Accrued expenses	$	223		and other	$	88
	Net asset (liability)		$	(218	)		$	138
Foreign Currency Forward Contracts [Member]	'
Derivatives, Fair Value [Line Items]	'
Summary Of Location And Fair Value Of Derivative Financial Instruments	'
		30-Sep-13			31-Dec-12
		Balance Sheet		Fair	Balance Sheet	Fair
	(In Thousands)	Account	Value		Account	Value
	Derivatives Designated as Hedging Instruments
	Asset derivatives:	Prepaid expenses			Prepaid expenses
	Foreign currency forward contracts	and other	$	252	and other	$	948
	Net asset (liability)		$	252		$	948

Pension_And_Other_PostRetireme1

Pension And Other Post-Retirement Benefits (Tables)	9 Months Ended
	Sep. 30, 2013
Pension And Other Post-Retirement Benefits [Abstract]	'
Schedule Of Components Of Net Periodic Benefit Cost For Pension And Other Post-Retirement Benefit Programs	'
			Pension						Other Post-Retirement
			Benefits for Three Months						Benefits for Three Months
			Ended September 30						Ended September 30
	(In Thousands)		2013			2012			2013			2012
	Service cost	$	(1,076	)	$	(1,028	)	$	(18	)	$	(17	)
	Interest cost		(3,039	)		(3,236	)		(89	)		(88	)
	Expected return on plan assets		4,415			4,709			-			-
	Amortization of prior service costs, gains or
	losses and net transition asset		(3,892	)		(2,529	)		41			74
	Curtailment charge		-			(99	)		-			-
	Net periodic benefit cost	$	(3,592	)	$	(2,183	)	$	(66	)	$	(31	)
			Pension						Other Post-Retirement
			Benefits for Nine Months						Benefits for Nine Months
			Ended September 30						Ended September 30
			2013			2012			2013			2012
	Service cost	$	(2,816	)	$	(2,743	)	$	(53	)	$	(43	)
	Interest cost		(9,253	)		(9,813	)		(266	)		(289	)
	Expected return on plan assets		13,073			14,331			-			-
	Amortization of prior service costs, gains or
	losses and net transition asset		(11,271	)		(7,782	)		122			180
	Curtailment charge		-			(99	)		-			-
	Net periodic benefit cost	$	(10,267	)	$	(6,106	)	$	(197	)	$	(152	)

Segment_Reporting_Tables

Segment Reporting (Tables)	9 Months Ended
	Sep. 30, 2013
Segment Reporting [Abstract]	'
Schedule Of Segment Reporting Information By Segment	'
			Three Months						Nine Months
			Ended September 30						Ended September 30
	(In Thousands)		2013			2012			2013			2012
	Net Sales
	Film Products	$	157,187		$	155,296		$	469,838		$	459,221
	AluminumExtrusions		78,499			55,222			236,293			172,525
	Total net sales		235,686			210,518			706,131			631,746
	Add back freight		7,508			6,130			22,119			17,404
	Sales as shown in the Consolidated Statements of Income		243,194			216,648			728,250			649,150
	Operating Profit
	Film Products:
	Ongoing operations		19,617			21,092			55,351			49,999
	Plant shutdowns, asset impairments, restructurings and other		(155	)		(87	)		(364	)		(1,879	)
	AluminumExtrusions:
	Ongoing operations		3,426			1,846			12,351			7,349
	Plant shutdowns, asset impairments, restructurings and other		(160	)		(1,067	)		(958	)		(3,214	)
	Total		22,728			21,784			66,380			52,255
	Interest income		138			84			307			337
	Interest expense		727			708			2,132			2,732
	Gain (loss) on investment accounted for under fair value method		(3,100	)		2,700			100			9,000
	Unrealized loss on investment property		-			-			1,018			-
	Stock option-based compensation costs		260			386			859			1,147
	Corporate expenses, net		8,414			4,788			24,058			17,060
	Income from continuining operations before income taxes		10,365			18,686			38,720			40,653
	Income taxes from continuing operations		2,937			4,476			12,185			11,318
	Income from continuing operations		7,428			14,210			26,535			29,335
	Loss from discontinued operations		(450	)		(6,783	)		(13,990	)		(11,557	)
	Net income	$	6,978		$	7,427		$	12,545		$	17,778
Schedule Of Identifiable Assets By Segment	'
			September 30,		December 31,
	(In Thousands)		2013		2012
	Film Products	$	572,681	$	551,842
	Aluminum Extrusions		129,005		129,279
	Subtotal		701,686		681,121
	General corporate		49,004		53,222
	Cash and cash equivalents		42,604		48,822
	Total	$	793,294	$	783,165

Income_Taxes_Tables

Income Taxes (Tables)	9 Months Ended
	Sep. 30, 2013
Income Taxes [Abstract]	'
Schedule Of Effective Income Tax Rate For Continuing Operations	'
		Percent of Income
		Before Income Taxes
	Nine Months Ended September 30	2013		2012
	Income taxexpense at federal statutory rate	35		35
	State taxes, net of federal income taxbenefit	2.2		1.4
	Valuation allowance for capital loss carry-forwards	1.1		3.3
	Unremitted earnings from foreign operations	1.1		0.7
	Valuation allowance for foreign operating loss carry-forwards	0.9		0.3
	Income taxcontingency accruals/reversals	0.9		(.3	)
	Non-deductible expenses	0.8		0.2
	Changes in estimates related to prior year taxprovision	(.3	)	0.1
	Research and development taxcredit	(1.4	)	-
	Domestic production activities deduction	(1.5	)	(.4	)
	Foreign rate differences	(2.3	)	(3.3	)
	Foreign taxincentives	(4.8	)	(9.3	)
	Other	(.2	)	0.1
	Effective income taxrate for income from continuing operations	31.5		27.8

Acquisitions_Narrative_Details

Acquisitions (Narrative) (Details) (USD $)	3 Months Ended		9 Months Ended		3 Months Ended			3 Months Ended	9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012	Mar. 31, 2012	Dec. 31, 2011	Oct. 24, 2011	Sep. 30, 2013	Sep. 30, 2013	Oct. 01, 2012
					Terphane [Member]	Terphane [Member]	Terphane [Member]	AACOA [Member]	AACOA [Member]	AACOA [Member]
Business Acquisition [Line Items]	'	'	'	'	'	'	'	'	'	'
Percentage of outstanding equity interests acquired	'	'	'	'	'	'	100.00%	'	'	100.00%
Total purchase price	'	'	'	'	$182,700,000	'	'	$54,100,000	'	'
Cash received from seller	'	'	'	'	'	'	'	600,000	600,000	'
Post-closing adjustment paid	'	'	'	'	3,300,000	'	'	'	'	'
Available cash used to fund purchase price	'	'	'	'	'	57,700,000	'	'	'	'
Financing used to fund purchase price	'	'	'	'	'	125,000,000	'	'	'	'
Financing used to fund purchase price from existing credit facility	'	'	'	'	'	'	'	'	'	350,000,000
Sales	243,194,000	216,648,000	728,250,000	649,150,000	'	'	'	22,700,000	67,400,000	'
Net income	$6,978,000	$7,427,000	$12,545,000	$17,778,000	'	'	'	$700,000	$2,000,000	'

Acquisitions_Schedule_Of_Purch

Acquisitions (Schedule Of Purchase Price Allocation) (Details) (AACOA [Member], USD $)	Oct. 01, 2012
In Thousands, unless otherwise specified
Schedule Of Acquired Finite And Indefinite Lived Intangible Asset By Major Class [Line Items]	'
Accounts receivable	$12,477
Inventories	4,708
Property, plant & equipment	15,116
Other assets (current & noncurrent)	42
Trade payables & accrued expenses	-6,574
Total identifiable net assets	40,369
Purchase price, net of cash received	54,065
Goodwill	13,696
Customer Relationships [Member]	'
Schedule Of Acquired Finite And Indefinite Lived Intangible Asset By Major Class [Line Items]	'
Identifiable intangible assets	4,800
Trade Names [Member]	'
Schedule Of Acquired Finite And Indefinite Lived Intangible Asset By Major Class [Line Items]	'
Identifiable intangible assets	4,800
Proprietary Technology [Member]	'
Schedule Of Acquired Finite And Indefinite Lived Intangible Asset By Major Class [Line Items]	'
Identifiable intangible assets	3,400
Noncompete Agreements [Member]	'
Schedule Of Acquired Finite And Indefinite Lived Intangible Asset By Major Class [Line Items]	'
Identifiable intangible assets	$1,600

Acquisitions_Schedule_Of_Amort

Acquisitions (Schedule Of Amortization Periods For Acquired Intangible Assets) (Details)	9 Months Ended
	Sep. 30, 2013
Customer Relationships [Member]	'
Schedule Of Acquired Finite And Indefinite Lived Intangible Asset By Major Class [Line Items]	'
Identifiable Intangible Asset, Useful Life (Yrs)	'10 years
Noncompete Agreements [Member]	'
Schedule Of Acquired Finite And Indefinite Lived Intangible Asset By Major Class [Line Items]	'
Identifiable Intangible Asset, Useful Life (Yrs)	'2 years
Minimum [Member] | Proprietary Technology [Member]	'
Schedule Of Acquired Finite And Indefinite Lived Intangible Asset By Major Class [Line Items]	'
Identifiable Intangible Asset, Useful Life (Yrs)	'6 years
Maximum [Member] | Proprietary Technology [Member]	'
Schedule Of Acquired Finite And Indefinite Lived Intangible Asset By Major Class [Line Items]	'
Identifiable Intangible Asset, Useful Life (Yrs)	'10 years

Acquisitions_Schedule_Of_Suppl

Acquisitions (Schedule Of Supplemental Unaudited Pro Forma Results) (Details) (USD $)	3 Months Ended	9 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Sep. 30, 2012	Sep. 30, 2012
Acquisitions [Abstract]	'	'
Sales	$238,652	$713,556
Income from continuing operations	$15,425	$31,662
Earnings per share from continuing operations, Basic	$0.48	$0.99
Earnings per share from continuing operations, Diluted	$0.48	$0.98

Discontinued_Operations_Detail

Discontinued Operations (Details) (USD $)	3 Months Ended	9 Months Ended	0 Months Ended		3 Months Ended		9 Months Ended
In Millions, except Share data, unless otherwise specified	Sep. 30, 2012	Sep. 30, 2012	Nov. 20, 2012	Feb. 12, 2008	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
			Falling Springs [Member]	Aluminum Extrusions Canada Business [Member]	Aluminum Extrusions Canada Business [Member]	Aluminum Extrusions Canada Business [Member]	Aluminum Extrusions Canada Business [Member]	Aluminum Extrusions Canada Business [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]	'	'	'	'	'	'	'	'
Proceeds from sale of membership interests	'	'	$16.60	'	'	'	'	'
Proceeds from sale of business	'	'	12.8	25	'	'	'	'
Common stock received from sale of membership interests	'	'	209,576	'	'	'	'	'
Sales reclassified to discontinued operations	2.2	3	'	'	'	'	'	'
Net income reclassified to discontinued operations	0.3	0.3	'	'	'	'	'	'
Charges for indemnifications under the purchase agreement related to environmental matters	'	'	'	'	-0.5	-7.1	-14	-11.9
Charges for indemnifications under the purchase agreement related to environmental matters, net of tax	'	'	'	'	($0.50)	($7.10)	($14)	($11.90)

Plants_Shutdowns_Asset_Impairm1

Plants Shutdowns, Asset Impairments, Restructurings And Other (Narrative) (Details) (USD $)

9 Months Ended

3 Months Ended

9 Months Ended

3 Months Ended

9 Months Ended

3 Months Ended

9 Months Ended

3 Months Ended

9 Months Ended

3 Months Ended

9 Months Ended

3 Months Ended

9 Months Ended

3 Months Ended

9 Months Ended

Sep. 30, 2013

Sep. 30, 2012

Jun. 30, 2013

Sep. 30, 2013

Sep. 30, 2013

Sep. 30, 2012

Sep. 30, 2013

Sep. 30, 2012

Sep. 30, 2013

Sep. 30, 2012

Sep. 30, 2013

Sep. 30, 2012

Sep. 30, 2013

Sep. 30, 2013

Sep. 30, 2012

Sep. 30, 2013

Sep. 30, 2013

Sep. 30, 2012

Sep. 30, 2013

Mar. 31, 2012

Sep. 30, 2012

Sep. 30, 2012

Sep. 30, 2012

Sep. 30, 2013

Sep. 30, 2012

Alleghany And Bath County, Virginia [Member]

Alleghany And Bath County, Virginia [Member]

Intelliject [Member]

Intelliject [Member]

Intelliject [Member]

Intelliject [Member]

Facility Closing [Member]

Facility Closing [Member]

Facility Closing [Member]

Facility Closing [Member]

Aluminum Extrusions [Member]

Aluminum Extrusions [Member]

Aluminum Extrusions [Member]

Film Products [Member]

Film Products [Member]

Film Products [Member]

Harbinger Fund [Member]

Harbinger Fund [Member]

Terphane [Member]

Terphane [Member]

AACOA [Member]

AACOA [Member]

AACOA [Member]

Restructuring Cost and Reserve [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Plant shutdown related expenditures

'

'

'

'

'

'

'

'

$45,000

$700,000

$600,000

$2,700,000

'

'

'

'

'

'

'

'

'

'

'

'

'

Accelerated depreciation

'

'

'

'

'

'

'

'

'

600,000

'

2,400,000

'

'

'

'

'

'

'

'

'

'

'

'

'

Other shutdown-related charges

'

'

'

'

'

'

'

'

'

700,000

'

900,000

'

'

'

'

'

'

'

'

'

'

'

'

'

Effect of LIFO Inventory Liquidation on Income

'

'

'

'

'

'

'

'

'

500,000

'

1,500,000

'

'

'

'

'

'

'

'

'

'

'

'

'

Integration-related expenses and other non-recurring transactions

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

100,000

1,000,000

'

200,000

'

Gain (loss) on sale of equipment

'

'

'

'

'

'

'

'

'

300,000

'

300,000

'

'

'

'

-100,000

'

'

'

'

'

'

'

'

Expected future environmental costs

'

'

'

'

'

'

'

'

'

'

'

'

100,000

200,000

'

'

'

'

'

'

'

'

'

'

'

Pretax loss for asset impairments

1,254,000

1,942,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

800,000

'

'

'

'

'

'

'

Pretax charges for severance and other employee-related costs

'

300,000

'

'

'

'

'

'

'

200,000

'

1,200,000

'

'

200,000

200,000

300,000

100,000

'

'

'

'

'

'

'

Unrealized gain (loss) on investment under fair value method

100,000

9,000,000

'

'

-3,100,000

2,700,000

100,000

9,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Unrealized gain (loss) on investment under fair value method, after taxes

'

'

'

'

-1,900,000

1,700,000

100,000

5,700,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Cost-method investment, OTTI

'

'

1,000,000

1,018,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

200,000

1,100,000

'

'

'

'

'

Cost-method investment, OTTI net of tax

'

'

600,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

100,000

700,000

'

'

'

'

'

Pretax charges for acquisition-related expenses

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

$300,000

'

$300,000

Plants_Shutdowns_Asset_Impairm2

Plants Shutdowns, Asset Impairments, Restructurings And Other (Schedule Of Accrued Expenses Associated With Asset Impairments And Exit And Disposal Activities) (Details) (USD $)	9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013
Restructuring Cost and Reserve [Line Items]	'
Balance at December 31, 2012	$881
Charges	839
Cash spent	-1,176
Balance at September 30, 2013	544
Severance [Member]	'
Restructuring Cost and Reserve [Line Items]	'
Balance at December 31, 2012	296
Charges	273
Cash spent	-390
Balance at September 30, 2013	179
Other [Member]	'
Restructuring Cost and Reserve [Line Items]	'
Balance at December 31, 2012	585	[1]
Charges	566	[1]
Cash spent	-786	[1]
Balance at September 30, 2013	$365	[1]
[1]	Other includes other shutdown-related costs associated with the shutdown of our aluminum extrusions manaufacturing facility in Kentland, Indiana.

Inventories_Narrative_Details

Inventories (Narrative) (Details) (Aluminum Extrusions [Member], USD $)	9 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2012
Aluminum Extrusions [Member]	'
Cost of goods sold stated at below current replacement costs	$1.50

Inventories_Schedule_Of_Compon

Inventories (Schedule Of Components Of Inventories) (Details) (USD $)	Sep. 30, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Inventories [Abstract]	'	'
Finished goods	$16,405	$16,138
Work-in-process	8,816	7,451
Raw materials	28,282	28,758
Stores, supplies and other	23,246	22,323
Total	$76,749	$74,670

Earnings_Per_Share_Narrative_D

Earnings Per Share (Narrative) (Details)	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Earnings Per Share [Abstract]	'	'	'	'
Common stock were excluded from the calculation of incremental shares	60,100	1,023,733	40,056	692,600

Earnings_Per_Share_Schedule_Of

Earnings Per Share (Schedule Of Calculation Of Numerator And Denominator In Earnings Per Share) (Details)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Earnings Per Share [Abstract]	'	'	'	'
Weighted average shares outstanding used to compute basic earnings per share	32,201	32,052	32,155	32,038
Incremental dilutive shares attributable to stock options and restricted stock	457	49	436	160
Shares used to compute diluted earnings per share	32,658	32,101	32,591	32,198

Accumulated_Other_Comprehensiv2

Accumulated Other Comprehensive Income (Loss) (Schedule Of After-Tax Changes In Accumulated Other Comprehensive Income (Loss)) (Details) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Accumulated Other Comprehensive Income (Loss) [Line Items]	'	'	'	'
Accumulated other comprehensive income (loss), Beginning balance	'	'	($102,347)	'
Other comprehensive income (loss) before reclassifications	'	'	-12,587	'
Amounts reclassified from accumulated other comprehensive income (loss)	'	'	6,806	'
Net other comprehensive income (loss) - current period	3,014	3,499	-5,781	-4,781
Accumulated other comprehensive income (loss), Ending balance	-108,128	'	-108,128	'
Foreign Currency Translation [Member]	'	'	'	'
Accumulated Other Comprehensive Income (Loss) [Line Items]	'	'	'	'
Accumulated other comprehensive income (loss), Beginning balance	'	'	131	'
Other comprehensive income (loss) before reclassifications	'	'	-12,543	'
Net other comprehensive income (loss) - current period	'	'	-12,543	'
Accumulated other comprehensive income (loss), Ending balance	-12,412	'	-12,412	'
Gain (Loss) On Derivative Financial Instruments [Member]	'	'	'	'
Accumulated Other Comprehensive Income (Loss) [Line Items]	'	'	'	'
Accumulated other comprehensive income (loss), Beginning balance	'	'	993	'
Other comprehensive income (loss) before reclassifications	'	'	-44	'
Amounts reclassified from accumulated other comprehensive income (loss)	'	'	-260	'
Net other comprehensive income (loss) - current period	'	'	-304	'
Accumulated other comprehensive income (loss), Ending balance	689	'	689	'
Pension & Other Post-Retirement Benefit Adjust. [Member]	'	'	'	'
Accumulated Other Comprehensive Income (Loss) [Line Items]	'	'	'	'
Accumulated other comprehensive income (loss), Beginning balance	'	'	-103,471	'
Amounts reclassified from accumulated other comprehensive income (loss)	'	'	7,066	'
Net other comprehensive income (loss) - current period	'	'	7,066	'
Accumulated other comprehensive income (loss), Ending balance	($96,405)	'	($96,405)	'

Accumulated_Other_Comprehensiv3

Accumulated Other Comprehensive Income (Loss) (Schedule Of Reclassifications Of Balances Out Of Accumulated Other Comprehensive Income (Loss) Into Net Income) (Details) (USD $)	3 Months Ended			9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013		Sep. 30, 2012	Sep. 30, 2013		Sep. 30, 2012
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]	'		'	'		'
Cost of sales	($198,433)		($172,431)	($594,502)		($524,774)
Total, before taxes	10,365		18,686	38,720		40,653
Income tax expense (benefit)	2,937		4,476	12,185		11,318
Total, net of tax	6,978		7,427	12,545		17,778
Reclassification Out Of Accumulated Other Comprehensive Income [Member] | Gain (Loss) On Derivative Financial Instruments [Member]	'		'	'		'
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]	'		'	'		'
Total, before taxes	-268		'	-417		'
Income tax expense (benefit)	-101		'	-157		'
Total, net of tax	-167		'	-260		'
Reclassification Out Of Accumulated Other Comprehensive Income [Member] | Gain (Loss) On Derivative Financial Instruments [Member] | Aluminum Futures Contracts [Member]	'		'	'		'
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]	'		'	'		'
Cost of sales	-268		'	-417		'
Reclassification Out Of Accumulated Other Comprehensive Income [Member] | Pension & Other Post-Retirement Benefit Adjust. [Member]	'		'	'		'
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]	'		'	'		'
Actuarial gain (loss) and prior service costs, before taxes	-3,851	[1]	'	-11,149	[1]	'
Income tax expense (benefit)	-1,410		'	-4,083		'
Total, net of tax	($2,441)		'	($7,066)		'
[1]	This component of accumulated other comprehensive income is included in the computation of net periodic pension cost (see Note 10 for additional detail).

Investments_Narrative_Details

Investments (Narrative) (Details) (USD $)

3 Months Ended

9 Months Ended

3 Months Ended

9 Months Ended

12 Months Ended

3 Months Ended

9 Months Ended

3 Months Ended

9 Months Ended

Sep. 30, 2012

Sep. 30, 2013

Sep. 30, 2012

Sep. 30, 2013

Sep. 30, 2012

Sep. 30, 2013

Sep. 30, 2012

Dec. 31, 2012

Dec. 31, 2008

Aug. 31, 2007

Sep. 30, 2013

Mar. 31, 2012

Sep. 30, 2013

Sep. 30, 2012

Dec. 31, 2012

Jun. 30, 2013

Sep. 30, 2013

Dec. 31, 2012

Intelliject [Member]

Intelliject [Member]

Intelliject [Member]

Intelliject [Member]

Intelliject [Member]

Intelliject [Member]

Intelliject [Member]

Harbinger Fund [Member]

Harbinger Fund [Member]

Harbinger Fund [Member]

Harbinger Fund [Member]

Harbinger Fund [Member]

Alleghany And Bath County, Virginia [Member]

Alleghany And Bath County, Virginia [Member]

Alleghany And Bath County, Virginia [Member]

Total cash invested in private company

'

'

'

'

'

'

'

'

$7,500,000

$7,500,000

'

'

'

'

'

'

'

'

Ownership interest percentage

'

'

'

'

'

20.00%

'

'

'

'

'

'

'

'

'

'

'

'

Carrying value

'

'

'

33,800,000

'

33,800,000

'

33,700,000

'

'

'

'

'

'

'

'

'

'

Unrealized gain (loss) on investment under fair value method

'

100,000

9,000,000

-3,100,000

2,700,000

100,000

9,000,000

'

'

'

'

'

'

'

'

'

'

'

Weighted average cost of capital

55.00%

55.00%

'

'

'

55.00%

'

55.00%

'

'

'

'

'

'

'

'

'

'

Basis point decrease of weighted average cost of capital assumption

'

'

'

5.00%

'

5.00%

'

'

'

'

'

'

'

'

'

'

'

'

Basis point increase 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

'

'

'

5,000,000

'

5,000,000

'

'

'

'

'

'

'

'

'

'

'

'

Decrease in fair value from five hundred point increase in weighted average cost of capital assumption

'

'

'

4,000,000

'

4,000,000

'

'

'

'

'

'

'

'

'

'

'

'

Investment carrying value

'

'

'

'

'

'

'

'

'

'

3,200,000

'

3,200,000

'

3,600,000

'

5,900,000

6,900,000

Cost-method investment, OTTI

'

'

'

'

'

'

'

'

'

'

200,000

1,100,000

'

'

'

1,000,000

1,018,000

'

Cost-method investment, OTTI net of tax

'

'

'

'

'

'

'

'

'

'

100,000

700,000

'

'

'

600,000

'

'

Total withdrawal proceeds received

'

'

'

'

'

'

'

'

'

'

'

'

$200,000

$500,000

'

'

'

'

Investments_Schedule_Of_Fair_V

Investments (Schedule Of Fair Value Method Investments, Balance Sheets And Income Statements) (Details) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012	Dec. 31, 2012	Dec. 31, 2011
Cash & cash equivalents	$42,604	$44,167	$42,604	$44,167	$48,822	$68,939
Other long-term assets	47,350	'	47,350	'	49,559	'
Total assets	793,294	'	793,294	'	783,165	'
Long term debt, net of discount	134,000	'	134,000	'	128,000	'
Equity	376,705	'	376,705	'	372,252	'
Total liabilities and shareholders' equity	793,294	'	793,294	'	783,165	'
Expenses and other, net	-229,600	-200,842	-687,971	-616,567	'	'
Income tax (expense) benefit	-2,937	-4,476	-12,185	-11,318	'	'
Net income	6,978	7,427	12,545	17,778	'	'
Intelliject [Member]	'	'	'	'	'	'
Cash & cash equivalents	32,198	'	32,198	'	53,288	'
Other current assets	9,289	'	9,289	'	686	'
Patents	2,331	'	2,331	'	2,152	'
Other long-term assets	9,737	'	9,737	'	4,278	'
Total assets	53,555	'	53,555	'	60,404	'
Long term debt, current portion	3,997	'	3,997	'	'	'
Other current liabilities	4,242	'	4,242	'	13,405	'
Non-current liabilities	2,895	'	2,895	'	1,449	'
Long term debt, net of discount	10,766	'	10,766	'	14,696	'
Redeemable preferred stock	21,724	'	21,724	'	20,995	'
Equity	9,931	'	9,931	'	9,859	'
Total liabilities and shareholders' equity	53,555	'	53,555	'	60,404	'
Royalty revenues	7,904	'	12,420	'	'	'
Expenses and other, net	-5,604	-3,089	-12,515	-8,026	'	'
Income tax (expense) benefit	-912	1,209	322	3,100	'	'
Net income	$1,388	($1,880)	$227	($4,926)	'	'

Derivative_Financial_Instrumen2

Derivative Financial Instruments (Narrative) (Details)	9 Months Ended		12 Months Ended
	Sep. 30, 2013	Sep. 30, 2013	Dec. 31, 2012	Sep. 30, 2013	Dec. 31, 2012	Sep. 30, 2013	Dec. 31, 2012
	USD ($)	Aluminum Futures Contracts [Member]	Aluminum Futures Contracts [Member]	Film Products [Member]	Film Products [Member]	Derivatives Not Designated As Hedging Instruments [Member]	Derivatives Not Designated As Hedging Instruments [Member]
		USD ($)	USD ($)	EUR (€)	EUR (€)	Aluminum Futures Contracts [Member]	Aluminum Futures Contracts [Member]
		lb	lb			USD ($)	USD ($)
Derivative [Line Items]	'	'	'	'	'	'	'
Notional Amount	'	$4,600,000	$6,200,000	€ 2,200,000	€ 9,900,000	'	'
Weight of aluminum that hedged future purchase of aluminum to meet fixed - price forward sales contract obligations, lbs	'	4,700,000	6,700,000	'	'	'	'
Net asset (liability), Fair Value	'	-218,000	138,000	'	'	0	0
Amounts of unrealized after-tax losses on derivative instruments	$100,000	'	'	'	'	'	'

Derivative_Financial_Instrumen3

Derivative Financial Instruments (Summary Of Location And Fair Value Of Derivative Financial Instruments) (Details) (USD $)	Sep. 30, 2013	Dec. 31, 2012
Aluminum Futures Contracts [Member]	'	'
Derivatives, Fair Value [Line Items]	'	'
Net asset (liability), Fair Value	($218,000)	$138,000
Foreign Currency Forward Contracts [Member]	'	'
Derivatives, Fair Value [Line Items]	'	'
Net asset (liability), Fair Value	252,000	948,000
Derivatives Designated As Hedging Instruments [Member] | Aluminum Futures Contracts [Member] | Accrued Expenses [Member]	'	'
Derivatives, Fair Value [Line Items]	'	'
Asset derivatives: Fair Value	5,000	'
Liability derivatives: Fair Value	223,000	'
Derivatives Designated As Hedging Instruments [Member] | Aluminum Futures Contracts [Member] | Prepaid Expenses And Other [Member]	'	'
Derivatives, Fair Value [Line Items]	'	'
Asset derivatives: Fair Value	'	226,000
Liability derivatives: Fair Value	'	88,000
Derivatives Designated As Hedging Instruments [Member] | Foreign Currency Forward Contracts [Member] | Prepaid Expenses And Other [Member]	'	'
Derivatives, Fair Value [Line Items]	'	'
Asset derivatives: Fair Value	252,000	948,000
Derivatives Not Designated As Hedging Instruments [Member] | Aluminum Futures Contracts [Member]	'	'
Derivatives, Fair Value [Line Items]	'	'
Net asset (liability), Fair Value	$0	$0

Derivative_Financial_Instrumen4

Derivative Financial Instruments (Schedule Of Pretax Effect On Net Income (Loss) And Other Comprehensive Income (Loss) Of Derivative Instruments Classified As Cash Flow Hedges) (Details) (Cash Flow Derivative Hedges [Member], USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Aluminum Futures Contracts [Member]	'	'	'	'
Derivative Instruments, Gain (Loss) [Line Items]	'	'	'	'
Amount of pre-tax gain (loss) recognized in other comprehensive income	($11)	($617)	($775)	($1,317)
Aluminum Futures Contracts [Member] | Cost Of Sales [Member]	'	'	'	'
Derivative Instruments, Gain (Loss) [Line Items]	'	'	'	'
Amount of pre-tax gain (loss) reclassified from accumulated other comprehensive income to net income (effective portion)	-268	-600	-417	-902
Foreign Currency Forwards And Options [Member]	'	'	'	'
Derivative Instruments, Gain (Loss) [Line Items]	'	'	'	'
Amount of pre-tax gain (loss) recognized in other comprehensive income	$122	$1,132	($123)	$1,132

Pension_And_Other_PostRetireme2

Pension And Other Post-Retirement Benefits (Narrative) (Details) (USD $)	Sep. 30, 2013	Dec. 31, 2012	Dec. 31, 2012	Sep. 30, 2013	Sep. 30, 2013
In Millions, unless otherwise specified			Other Post-Retirement Benefits [Member]	Pension Benefits [Member]	Pension Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]	'	'	'	'	'
Pension and other postretirement liabilities	$86.10	$91.20	'	'	'
Contribution to pension plans for continuing operations	'	'	0.3	'	'
Expected required contributions	'	'	'	'	0.2
Additional discretionary contribution	'	'	'	$5	'

Pension_And_Other_PostRetireme3

Pension And Other Post-Retirement Benefits (Schedule Of Components Of Net Periodic Benefit Cost For Pension And Other Post-Retirement Benefit Programs) (Details) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Pension Benefits [Member]	'	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'	'
Service cost	($1,076)	($1,028)	($2,816)	($2,743)
Interest cost	-3,039	-3,236	-9,253	-9,813
Expected return on plan assets	4,415	4,709	13,073	14,331
Amortization of prior service costs, gains or losses and net transition asset	-3,892	-2,529	-11,271	-7,782
Curtailment charge	'	-99	'	-99
Net periodic benefit cost	-3,592	-2,183	-10,267	-6,106
Other Post-Retirement Benefits [Member]	'	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'	'
Service cost	-18	-17	-53	-43
Interest cost	-89	-88	-266	-289
Amortization of prior service costs, gains or losses and net transition asset	41	74	122	180
Net periodic benefit cost	($66)	($31)	($197)	($152)

Segment_Reporting_Schedule_Of_

Segment Reporting (Schedule Of Segment Reporting Information By Segment) (Details) (USD $)

3 Months Ended

9 Months Ended

3 Months Ended

9 Months Ended

3 Months Ended

9 Months Ended

3 Months Ended

9 Months Ended

3 Months Ended

9 Months Ended

In Thousands, unless otherwise specified

Sep. 30, 2013

Sep. 30, 2012

Sep. 30, 2013

Sep. 30, 2012

Sep. 30, 2013

Sep. 30, 2012

Sep. 30, 2013

Sep. 30, 2012

Sep. 30, 2013

Sep. 30, 2012

Sep. 30, 2013

Sep. 30, 2012

Sep. 30, 2013

Sep. 30, 2012

Sep. 30, 2013

Sep. 30, 2012

Jun. 30, 2013

Sep. 30, 2013

Intelliject [Member]

Intelliject [Member]

Intelliject [Member]

Intelliject [Member]

Film Products [Member]

Film Products [Member]

Film Products [Member]

Film Products [Member]

Aluminum Extrusions [Member]

Aluminum Extrusions [Member]

Aluminum Extrusions [Member]

Aluminum Extrusions [Member]

Alleghany And Bath County, Virginia [Member]

Alleghany And Bath County, Virginia [Member]

Segment Reporting Information [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Total net sales

$235,686

$210,518

$706,131

$631,746

'

'

'

'

$157,187

$155,296

$469,838

$459,221

$78,499

$55,222

$236,293

$172,525

'

'

Add back freight

7,508

6,130

22,119

17,404

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Sales as shown in the Consolidated Statements of Income

243,194

216,648

728,250

649,150

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Ongoing operations

'

'

'

'

'

'

'

'

19,617

21,092

55,351

49,999

3,426

1,846

12,351

7,349

'

'

Plant shutdowns, asset impairments, restructurings and other

'

'

'

'

'

'

'

'

-155

-87

-364

-1,879

-160

-1,067

-958

-3,214

'

'

Total

22,728

21,784

66,380

52,255

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Interest income

138

84

307

337

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Interest expense

727

708

2,132

2,732

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Gain (loss) on investment accounted for under fair value method

'

'

100

9,000

-3,100

2,700

100

9,000

'

'

'

'

'

'

'

'

'

'

Unrealized loss on investment property

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

1,000

1,018

Stock option-based compensation costs

260

386

859

1,147

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Corporate expenses, net

8,414

4,788

24,058

17,060

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Income from continuing operations before income taxes

10,365

18,686

38,720

40,653

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Income taxes from continuing operations

2,937

4,476

12,185

11,318

912

-1,209

-322

-3,100

'

'

'

'

'

'

'

'

'

'

Income from continuing operations

7,428

14,210

26,535

29,335

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Loss from discontinued operations

-450

-6,783

-13,990

-11,557

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Net income

$6,978

$7,427

$12,545

$17,778

$1,388

($1,880)

$227

($4,926)

'

'

'

'

'

'

'

'

'

'

Segment_Reporting_Schedule_Of_1

Segment Reporting (Schedule Of Identifiable Assets By Segment) (Details) (USD $)	Sep. 30, 2013	Dec. 31, 2012	Sep. 30, 2012	Dec. 31, 2011
In Thousands, unless otherwise specified
Subtotal	$701,686	$681,121	'	'
General corporate	49,004	53,222	'	'
Cash and cash equivalents	42,604	48,822	44,167	68,939
Total assets	793,294	783,165	'	'
Film Products [Member]	'	'	'	'
Total assets	572,681	551,842	'	'
Aluminum Extrusions [Member]	'	'	'	'
Total assets	$129,005	$129,279	'	'

Income_Taxes_Narrative_Details

Income Taxes (Narrative) (Details) (USD $)	9 Months Ended
In Millions, except Per Share data, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012
Income Taxes [Line Items]	'	'
Effective tax rate for continuing operations	31.50%	27.80%
Benefit from the tax incentives	$1.90	$3.80
Benefit from the tax incentives, per share	$0.06	$0.12
Valuation allowance	$0.40	$1.30
Terphane Ltda [Member]	'	'
Income Taxes [Line Items]	'	'
Current effective tax rate	15.25%	'
Income tax rate	6.25%	'
Percentage of social contribution on income included in current effective tax rate	9.00%	'
Brazil [Member]	'	'
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%	'

Income_Taxes_Schedule_Of_Effec

Income Taxes (Schedule Of Effective Income Tax Rate For Continuing Operations) (Details)	9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012
Income Taxes [Abstract]	'	'
Income tax expense at federal statutory rate	35.00%	35.00%
State taxes, net of federal income tax benefit	2.20%	1.40%
Valuation allowance for capital loss carry-forwards	1.10%	3.30%
Unremitted earnings from foreign operations	1.10%	0.70%
Valuation allowance for foreign operating loss carry-forwards	0.90%	0.30%
Income tax contingency accruals/reversals	0.90%	-0.30%
Non-deductible expenses	0.80%	0.20%
Changes in estimates related to prior year tax provision	-0.30%	0.10%
Research and development tax credit	-1.40%	'
Domestic production activities deduction	-1.50%	-0.40%
Foreign rate differences	-2.30%	-3.30%
Foreign tax incentives	-4.80%	-9.30%
Other	-0.20%	0.10%
Effective income tax rate for income from continuing operations	31.50%	27.80%

Contingencies_Details

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