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Plants Shutdowns, Asset Impairments, Restructurings And Other (Narrative) (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended | 12 Months Ended
--- | --- | --- | ---
Jun. 30, 2016 | Jun. 30, 2015 | Jun. 30, 2016 | Jun. 30, 2015 | Jun. 30, 2016
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Business Development Expenses |  |  | $ 400 |  |
Loss on asset impairments and divestitures |  |  | 339 | $ 0 |
Other Non-Operating and Non-Recurring Charges [Abstract] |  |  |  |  |
Unrealized gain (loss) on investment under fair value method |  |  | 1,100 | 0 |
Payments for Restructuring |  |  | 2,024 |  |
kaleo |  |  |  |  |
Other Non-Operating and Non-Recurring Charges [Abstract] |  |  |  |  |
Unrealized gain (loss) on investment under fair value method | $ 300 | $ 0 | 1,100 | 0 |
Unrealized gain (loss) on investment under fair value method, after taxes | 200 |  | 800 |  |
Corporate [Member] [Domain] |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Pretax charges for severance and other employee-related costs |  | 3,900 |  | 3,900 |
PE Films |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Pretax charges for severance and other employee-related costs | 15 | 300 | 23 | 200 |
Aluminum Extrusions |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Increase (Decrease) in Property and Casualty Insurance Liabilities | 600 |  | 600 |  |
Severance |  |  |  |  |
Other Non-Operating and Non-Recurring Charges [Abstract] |  |  |  |  |
Payments for Restructuring |  |  | 707 |  |
Aluminum Extrusions Manufacturing Facility In Kentland Indiana [Member] | Facility Closing | Aluminum Extrusions |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Plant shutdown related expenditures | 8 | $ 18 | 15 | $ 33 |
FilmProductsManufacturingFacilityInLakeZurichIllinois [Member] | PE Films |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
AcceleratedDepreciationExpectedCost | 3,000 |  | 3,000 |  | $ 3,000
Other Plant Consolidation Expenses - Cost of Goods Sold | 800 |  | 1,300 |  |
Pretax loss for asset impairments |  |  | 600 |  |
Other Non-Operating and Non-Recurring Charges [Abstract] |  |  |  |  |
Payments for Restructuring | 3,600 |  | 5,800 |  | 9,400
Capital Expenditures Restructuring Project | 2,800 |  | 4,500 |  | 7,400
FilmProductsManufacturingFacilityInLakeZurichIllinois [Member] | Other Restructuring [Member] |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Plant shutdown related expenditures | 1,400 |  | 2,500 |  | 4,700
Pretax charges for severance and other employee-related costs | 400 |  | 700 |  |
Loss on asset impairments and divestitures | 100 |  | 300 |  |
Accelerated Depreciation Expense | 100 |  | 200 |  |
Other Restructuring Costs | 800 |  | 1,300 |  |
Other Plant Consolidation Expenses - Cost of Goods Sold | 700 |  | 1,100 |  |
FilmProductsManufacturingFacilityInLakeZurichIllinois [Member] | Other Restructuring [Member] | PE Films |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Restructuring and Related Cost, Expected Cost | 2,000 |  | 2,000 |  | 2,000
FilmProductsManufacturingFacilityInLakeZurichIllinois [Member] | RestructuringSeverance&EquipmentTransfers [Member] | PE Films |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
RestructuringExpectedCashOutflows | 5,000 |  | 5,000 |  | 5,000
FilmProductsManufacturingFacilityInLakeZurichIllinois [Member] | RestructuringCapExEquiptUpgrades [Member] | PE Films |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
RestructuringExpectedCashOutflows | 11,000 |  | 11,000 |  | 11,000
FilmProductsManufacturingFacilityInLakeZurichIllinois [Member] | RestructuringSafetyQualityIncentives [Member] | PE Films |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
RestructuringExpectedCashOutflows | 1,000 |  | 1,000 |  | 1,000
FilmProductsManufacturingFacilityInLakeZurichIllinois [Member] | RestructuringProductQualifications [Member] | PE Films |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
RestructuringExpectedCashOutflows | 1,000 |  | 1,000 |  | 1,000
Minimum | FilmProductsManufacturingFacilityInLakeZurichIllinois [Member] | PE Films |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Restructuring and Related Cost, Expected Cost | 5,000 |  | 5,000 |  | 5,000
RestructuringExpectedCashOutflows | 16,000 |  | 16,000 |  | 16,000
Minimum | FilmProductsManufacturingFacilityInLakeZurichIllinois [Member] | Severance | PE Films |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Restructuring and Related Cost, Expected Cost | 2,000 |  | 2,000 |  | 2,000
Maximum | FilmProductsManufacturingFacilityInLakeZurichIllinois [Member] | PE Films |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Restructuring and Related Cost, Expected Cost | 6,000 |  | 6,000 |  | 6,000
RestructuringExpectedCashOutflows | 17,000 |  | 17,000 |  | 17,000
Maximum | FilmProductsManufacturingFacilityInLakeZurichIllinois [Member] | Severance | PE Films |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Restructuring and Related Cost, Expected Cost | $ 3,000 |  | $ 3,000 |  | $ 3,000

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