Asset impairment charges after taxes.

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Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill.

+ References

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- Definition

Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

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-Publisher FASB
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Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

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Fair value portion of assets, excluding financial assets, that lack physical substance, having a limited useful life.

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- Definition

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Amount after tax of loss recognized that results from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

No definition available.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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No definition available.

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The amount of impairment loss recognized in the period resulting from the write-down of the carrying amount of a finite-lived intangible asset to fair value.

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Amount of assets, excluding financial assets and goodwill, lacking physical substance and having a projected indefinite period of benefit.

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Goodwill And Other Intangible Assets (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended			12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Sep. 30, 2015	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Goodwill [Line Items]
Goodwill impairment charge				$ 0	$ 0	$ 44,465
Goodwill	$ 128,208	$ 117,822		128,208	117,822	117,839
Loss on asset impairments				101,282	1,436	403
Flexible Packaging Films [Member] [Domain]
Goodwill [Line Items]
Goodwill impairment charge			$ 44,500	0	0	44,465
Goodwill, Impairment Loss, Net of Tax			$ 44,500
Flexible Packaging Films [Member]
Goodwill [Line Items]
Assets, Fair Value Disclosure	30,000			30,000
Loss on asset impairments	101,000			101,000
Asset Impairment Charges After Taxes	87,000			87,000
Impairment of Intangible Assets, Finite-lived				17,500
PE Films [Member]
Goodwill [Line Items]
Goodwill	104,142	104,126		104,142	$ 104,126	$ 104,143
Loss on asset impairments	0	200
Asset Impairment Charges After Taxes	300	$ 100
Customer Relationships [Member] \| Personal Care Materials [Member]
Goodwill [Line Items]
Goodwill	46,800			46,800
Trade Names [Member]
Goodwill [Line Items]
Trade names (cost basis of $13,887 in 2017 and $11,175 in 2016)	4,800			4,800
Goodwill [Member] \| Personal Care Materials [Member]
Goodwill [Line Items]
Goodwill	46,800			46,800
Goodwill [Member] \| Surface Protection Films [Member]
Goodwill [Line Items]
Goodwill	57,300			57,300
Goodwill [Member] \| Aacoa [Member]
Goodwill [Line Items]
Goodwill	13,700			13,700
Goodwill [Member] \| Futura [Member]
Goodwill [Line Items]
Goodwill	10,400			10,400
Customer Relationships [Member] \| Flexible Packaging Films [Member]
Goodwill [Line Items]
Impairment of Intangible Assets, Finite-lived				9,444
Finite-lived Intangible Assets, Fair Value Disclosure	800			800
Proprietary Technology [Member] \| Flexible Packaging Films [Member]
Goodwill [Line Items]
Impairment of Intangible Assets, Finite-lived				4,051
Finite-lived Intangible Assets, Fair Value Disclosure	400			400
Trade Names [Member] \| Flexible Packaging Films [Member]
Goodwill [Line Items]
Finite-lived Intangible Assets, Fair Value Disclosure	$ 2,400			2,400
Trade Names [Member] \| PE Films [Member]
Goodwill [Line Items]
Impairment of Intangible Assets, Finite-lived				$ 4,005
Minimum [Member] \| Customer Relationships [Member]
Goodwill [Line Items]
Finite-Lived Intangible Asset, Useful Life				10 years
Minimum [Member] \| Customer Relationships [Member] \| Flexible Packaging Films [Member]
Goodwill [Line Items]
Finite-Lived Intangible Asset, Useful Life				5 years
Minimum [Member] \| Trade Names [Member]
Goodwill [Line Items]
Finite-Lived Intangible Asset, Useful Life				2 years
Maximum [Member] \| Customer Relationships [Member]
Goodwill [Line Items]
Finite-Lived Intangible Asset, Useful Life				12 years
Maximum [Member] \| Customer Relationships [Member] \| Flexible Packaging Films [Member]
Goodwill [Line Items]
Finite-Lived Intangible Asset, Useful Life				13 years
Maximum [Member] \| Proprietary Technology [Member]
Goodwill [Line Items]
Finite-Lived Intangible Asset, Useful Life				15 years
Maximum [Member] \| Trade Names [Member]
Goodwill [Line Items]
Finite-Lived Intangible Asset, Useful Life				12 years