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Restructuring and Impairment Activities (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended | 12 Months Ended
--- | --- | --- | ---
Jun. 30, 2016 | Jun. 30, 2015 | Jun. 30, 2016 | Jun. 30, 2015 | Dec. 31, 2015
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Restructuring and impairment expense | $ 0.9 | $ 5.2 | $ 2.7 | $ 9.2 |
Restructuring Reserve [Roll Forward] |  |  |  |  |
Balance at beginning of year |  |  | 7.7 | 8.7 | $ 8.7
Accruals for announced programs |  |  | 2.2 |  | 8.0
Cash payments |  |  | (5.1) |  | (8.3)
Exchange rate impacts |  |  | 0.2 |  | (0.7)
Balance at end of period | 5.0 |  | 5.0 |  | $ 7.7
Corporate, Non-Segment [Member] |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Restructuring and impairment expense | 0.0 | 0.1 | 0.3 | 0.3 |
Engineered Papers Segment [Member] |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Restructuring and impairment expense | 0.9 | 5.3 | 1.8 | 9.1 |
Engineered Papers Segment [Member] | RTL Facility [Member] |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Loss on sale of equipment |  |  |  | 3.5 |
Engineered Papers Segment [Member] | Employee Severance [Member] | Quimperle and Spay, France Facility [Member] |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Restructuring and impairment expense |  |  |  | 5.6 |
Engineered Papers Segment [Member] | France, Brazil, And United States [Member] | Employee Severance [Member] |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Restructuring and impairment expense |  |  | 1.3 |  |
Engineered Papers Segment [Member] | Poland [Member] |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Restructuring and impairment expense |  |  | 0.5 |  |
Advanced Materials & Structures Segment [Member] |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Restructuring and impairment expense | $ 0.0 | $ (0.2) | $ 0.6 | $ (0.2) |

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