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v3.10.0.1

Consolidated Statements of Operations - USD ($) shares in Millions, $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
Income Statement [Abstract] |  |  |
Net sales | $ 2,189.1 | $ 1,973.3 | $ 2,004.3
Cost of sales | 1,608.3 | 1,421.5 | 1,439.7
Gross margin | 580.8 | 551.8 | 564.6
Selling, general and administrative expenses | 146.0 | 151.8 | 157.6
Research and technology expenses | 55.9 | 49.4 | 46.9
Other operating expense | 7.7 |  |
Operating income | 371.2 | 350.6 | 360.1
Interest expense, net | 37.7 | 27.4 | 22.1
Non-operating expense |  |  | 0.4
Income before income taxes, and equity in earnings of affiliated companies | 333.5 | 323.2 | 337.6
Provision for income taxes | 62.5 | 42.5 | 90.3
Income before equity in earnings of affiliated companies | 271.0 | 280.7 | 247.3
Equity in earnings from affiliated companies | 5.6 | 3.3 | 2.5
Net income | $ 276.6 | $ 284.0 | $ 249.8
Basic net income per common share: | $ 3.15 | $ 3.13 | $ 2.69
Diluted net income per common share: | $ 3.11 | $ 3.09 | $ 2.65
Weighted-average common shares: |  |  |
Basic | 87.9 | 90.6 | 92.8
Diluted | 89.0 | 91.9 | 94.2

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