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Business, Product and Geographical Area Information and Concentration of Risk, Net Sales by End Market Segment Applications (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2018 | Sep. 30, 2017 | Sep. 30, 2018 | Sep. 30, 2017
Net Sales: |  |  |  |
Revenues | $ 393.1 | $ 332.8 | $ 1,196.5 | $ 1,044.4
Transferred at Point in Time |  |  |  |
Net Sales: |  |  |  |
Revenues | 127.8 |  | 425.2 |
Transferred over Time |  |  |  |
Net Sales: |  |  |  |
Revenues | 265.3 |  | 771.3 |
Aero/HS products |  |  |  |
Net Sales: |  |  |  |
Revenues | 185.7 | 150.2 | 540.9 | 483.2
Automotive Extrusions |  |  |  |
Net Sales: |  |  |  |
Revenues | 56.1 | 52.7 | 183.9 | 161.6
GE products |  |  |  |
Net Sales: |  |  |  |
Revenues | 133.9 | 115.9 | 425.1 | 361.1
Other products |  |  |  |
Net Sales: |  |  |  |
Revenues | $ 17.4 | $ 14.0 | $ 46.6 | $ 38.5

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