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Segment and Geographical Area Information, Net Sales by End Market Segment Applications (Details) - Fabricated Products - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2018 | Jun. 30, 2017 | Jun. 30, 2018 | Jun. 30, 2017
Net Sales: |  |  |  |
Net sales | $ 415.4 | $ 356.3 | $ 803.4 | $ 711.6
Transferred at Point in Time |  |  |  |
Net Sales: |  |  |  |
Net sales | 140.8 |  | 297.4 |
Transferred over Time |  |  |  |
Net Sales: |  |  |  |
Net sales | 274.6 |  | 506.0 |
Aero/HS products |  |  |  |
Net Sales: |  |  |  |
Net sales | 185.0 | 165.5 | 355.2 | 333.0
Automotive Extrusions |  |  |  |
Net Sales: |  |  |  |
Net sales | 67.3 | 55.9 | 127.8 | 108.9
GE products |  |  |  |
Net Sales: |  |  |  |
Net sales | 147.9 | 122.0 | 291.2 | 245.2
Other products |  |  |  |
Net Sales: |  |  |  |
Net sales | $ 15.2 | $ 12.9 | $ 29.2 | $ 24.5

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