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Income Taxes (Narrative) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Income Taxes [Line Items]
Income Tax Expense (Benefit)	$ 3,382	$ 5,369	$ 9,064	$ 12,141
Goodwill, Impairment Loss	44,465	0	44,465	0
Deferred Tax Benefit Expense Valuation Allowance Adj Capital Loss Carryforwards			$ 300	$ 100
Income Tax Holiday, Income Tax Benefits Per Share				$ 0.00
BrazilianTaxCreditDeductionPeriod			24 months
Income Tax Holiday, Aggregate Dollar Amount				$ 100
Brazilian Tax Holiday Incentive Period			10 years
Effective Income Tax Rate Reconciliation, Percent			(52.70%)	34.60%
Income (Loss) from Continuing Operations before Income Taxes, Extraordinary Items, Noncontrolling Interest	(33,341)	16,114	$ (17,195)	$ 35,117
Terphane Ltda
Income Taxes [Line Items]
Current Effective Tax Rate Reconciliation Social Contribution On Income				9.00%
Current Effective Tax Rate Excluding Social Contribution On Income				6.25%
Current Effective Tax Rate Including Social Contribution On Income				15.25%
Brazil
Income Taxes [Line Items]
Effective income tax rate reconciliation social contribution on income				9.00%
Effective Income Tax Rate Reconciliation Federal Statutory Tax Rate Excluding Social Contribution On Income				25.00%
Effective Income Tax Rate Reconciliation Federal Statutory Tax Rate Including Social Contribution On Income				34.00%
Excess Capital Losses From Investments And Other Related Items [Member]
Income Taxes [Line Items]
Deferred Tax Assets, Valuation Allowance	11,100		11,100
Flexible Packaging Films [Member] [Domain]
Income Taxes [Line Items]
Goodwill, Impairment Loss	$ 44,465	$ 0	$ 44,465	$ 0

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