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Goodwill - Carrying Amount of Goodwill By Segment (Details) | 12 Months Ended
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Dec. 31, 2015 USD ($) reportable_unit | Dec. 31, 2014 USD ($)
Goodwill [Line Items] |  |
Number of reportable units with goodwill | reportable_unit | 2 |
Goodwill [Roll Forward] |  |
Goodwill beginning of period, net | $ 126,100,000 | $ 121,100,000
Goodwill acquired during the year | 109,500,000 | 5,600,000
Foreign currency translation adjustments | (2,300,000) | (600,000)
Goodwill end of period, net | 233,300,000 | 126,100,000
Engineered Papers [Member] |  |
Goodwill [Line Items] |  |
Accumulated impairment losses | 2,700,000 |
Goodwill [Roll Forward] |  |
Goodwill beginning of period, net | 5,300,000 | 6,000,000
Goodwill acquired during the year | 0 | 0
Foreign currency translation adjustments | (500,000) | (700,000)
Goodwill end of period, net | 4,800,000 | 5,300,000
Advanced Materials & Structures [Member] |  |
Goodwill [Line Items] |  |
Accumulated impairment losses | 0 |
Goodwill [Roll Forward] |  |
Goodwill beginning of period, net | 120,800,000 | 115,100,000
Goodwill acquired during the year | 109,500,000 | 5,600,000
Foreign currency translation adjustments | (1,800,000) | 100,000
Goodwill end of period, net | $ 228,500,000 | $ 120,800,000

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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 -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6388280&loc=d3e13770-109266 + Details
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- Definition Amount of increase in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 + Details
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- Definition Amount of accumulated impairment loss for 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 -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (a,h) -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 + Details
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- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. + References No definition available. + Details
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- Definition Amount of increase (decrease) from foreign currency translation adjustments 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 -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 + Details
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