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v3.19.1

Intangible Assets (Details) - USD ($) $ in Millions | 3 Months Ended |
--- | --- | ---
Mar. 31, 2019 | Mar. 31, 2018 | Dec. 31, 2018
Unamortized Intangible Assets (Advanced Materials & Structures) |  |  |
Amortization expense of intangible assets | $ 5.1 | $ 5.2 |
Estimated average amortization, remainder of year | 20.1 |  |
Estimated average amortization, year two | 20.1 |  |
Estimated average amortization, year three | 20.1 |  |
Estimated average amortization, year four | 20.1 |  |
Estimated average amortization, year five | 20.1 |  |
Advanced Materials & Structures |  |  |
Amortized Intangible Assets |  |  |
Gross Carrying Amount | 336.5 |  | $ 336.5
Accumulated Amortization | 66.9 |  | 61.8
Accumulated Impairments | 20.7 |  | 20.7
Accumulated Foreign Exchange | 2.2 |  | 1.2
Net Carrying Amount | 246.7 |  | 252.8
Advanced Materials & Structures | Trade names |  |  |
Amortized Intangible Assets |  |  |
Accumulated Impairments | 0.1 |  | 0.1
Accumulated Foreign Exchange | 0.0 |  | (0.1)
Unamortized Intangible Assets (Advanced Materials & Structures) |  |  |
Gross Carrying Amount | 20.0 |  | 20.0
Net Carrying Amount | 19.9 |  | 20.0
Advanced Materials & Structures | Customer relationships |  |  |
Amortized Intangible Assets |  |  |
Gross Carrying Amount | 276.3 |  | 276.3
Accumulated Amortization | 54.7 |  | 50.4
Accumulated Impairments | 0.0 |  | 0.0
Accumulated Foreign Exchange | 1.6 |  | 0.7
Net Carrying Amount | 220.0 |  | 225.2
Advanced Materials & Structures | Developed technology |  |  |
Amortized Intangible Assets |  |  |
Gross Carrying Amount | 34.0 |  | 34.0
Accumulated Amortization | 9.1 |  | 8.5
Accumulated Impairments | 0.0 |  | 0.0
Accumulated Foreign Exchange | 0.3 |  | 0.2
Net Carrying Amount | 24.6 |  | 25.3
Advanced Materials & Structures | Trade names |  |  |
Amortized Intangible Assets |  |  |
Gross Carrying Amount | 21.8 |  | 21.8
Accumulated Amortization | 0.8 |  | 0.8
Accumulated Impairments | 20.7 |  | 20.7
Accumulated Foreign Exchange | 0.3 |  | 0.3
Net Carrying Amount | 0.0 |  | 0.0
Advanced Materials & Structures | Non-compete agreements |  |  |
Amortized Intangible Assets |  |  |
Gross Carrying Amount | 2.9 |  | 2.9
Accumulated Amortization | 1.9 |  | 1.7
Accumulated Impairments | 0.0 |  | 0.0
Accumulated Foreign Exchange | 0.0 |  | 0.0
Net Carrying Amount | 1.0 |  | 1.2
Advanced Materials & Structures | Patents |  |  |
Amortized Intangible Assets |  |  |
Gross Carrying Amount | 1.5 |  | 1.5
Accumulated Amortization | 0.4 |  | 0.4
Accumulated Impairments | 0.0 |  | 0.0
Accumulated Foreign Exchange | 0.0 |  | 0.0
Net Carrying Amount | $ 1.1 |  | $ 1.1

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