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v3.19.1

Segment Information (Details) $ in Millions | 3 Months Ended |
--- | --- | ---
Mar. 31, 2019 USD ($) segment | Mar. 31, 2018 USD ($) | Dec. 31, 2018 USD ($)
Segment Reporting Information [Line Items] |  |  |
Number of operating segments | segment | 2 |  |
Number of reportable segments | segment | 2 |  |
Net Sales [Abstract] |  |  |
Net Sales | $ 258.0 | $ 261.9 |
Percentage of Net Sales (in hundredths) | 100.00% | 100.00% |
Operating Profit [Abstract] |  |  |
Operating Profit | $ 30.4 | $ 35.0 |
Operating Profit (in hundredths) | 100.00% | 100.00% |
Assets | $ 1,485.7 |  | $ 1,466.5
Advanced Materials & Structures |  |  |
Net Sales [Abstract] |  |  |
Net Sales | 120.5 | $ 115.3 |
Engineered Papers |  |  |
Net Sales [Abstract] |  |  |
Net Sales | 137.5 | 146.6 |
Operating Segments | Advanced Materials & Structures |  |  |
Net Sales [Abstract] |  |  |
Net Sales | $ 120.5 | $ 115.3 |
Percentage of Net Sales (in hundredths) | 46.70% | 44.00% |
Operating Profit [Abstract] |  |  |
Operating Profit | $ 14.9 | $ 10.6 |
Operating Profit (in hundredths) | 49.00% | 30.30% |
Assets | $ 807.1 |  | 796.1
Operating Segments | Engineered Papers |  |  |
Net Sales [Abstract] |  |  |
Net Sales | $ 137.5 | $ 146.6 |
Percentage of Net Sales (in hundredths) | 53.30% | 56.00% |
Operating Profit [Abstract] |  |  |
Operating Profit | $ 28.7 | $ 33.9 |
Operating Profit (in hundredths) | 94.40% | 96.90% |
Assets | $ 527.5 |  | 527.4
Unallocated |  |  |
Operating Profit [Abstract] |  |  |
Operating Profit | $ (13.2) | $ (9.5) |
Operating Profit (in hundredths) | (43.40%) | (27.20%) |
Assets | $ 151.1 |  | $ 143.0

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