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v3.10.0.1

Quarterly Financial Data (Details) - USD ($) $ / shares in Units, $ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2018 | Sep. 30, 2018 | Jun. 30, 2018 | Mar. 31, 2018 | Dec. 31, 2017 | Sep. 30, 2017 | Jun. 30, 2017 | Mar. 31, 2017 | Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
Revenues | $ 389.4 | $ 393.1 | $ 415.4 | $ 388.0 | $ 353.1 | $ 332.8 | $ 356.3 | $ 355.3 | $ 1,585.9 |  | $ 1,397.5 |  | $ 1,330.6 |
Goodwill impairment |  |  |  |  |  |  | 18.4 |  | 0.0 |  | 18.4 |  | 0.0 |
Tax Cuts and Jobs Act of 2017, Incomplete Accounting, Provisional Income Tax Expense (Benefit) |  |  |  |  | (37.2) |  |  |  |  |  |  |  |  |
Cost of Goods and Services Sold | 317.3 | 323.3 | 343.4 | 316.7 | 277.2 | 256.4 | 289.6 | 262.7 | 1,300.7 | [1] | 1,085.9 | [1] | 1,000.8 | [1]
Lower of cost or market inventory write-down |  |  |  |  |  |  |  |  | 0.0 |  | 0.0 |  | 4.9 |
Gross Profit | 72.1 | 69.8 | 72.0 | 71.3 | 75.9 | 76.4 | 66.7 | 92.6 |  |  |  |  |  |
Operating income | 36.9 | 34.9 | 34.7 | 37.1 | 41.9 | 41.5 | 12.5 | 59.3 | 143.6 |  | 155.2 |  | 181.1 |
Net income (loss) | $ 23.6 | $ 21.7 | $ 20.7 | $ 25.7 | $ (15.2) | $ 19.9 | $ 4.7 | $ 36.0 | $ 91.7 |  | $ 45.4 |  | $ 91.7 |
Net income per common share: |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basic (in dollars per share) | $ 1.44 | $ 1.31 | $ 1.24 | $ 1.54 | $ (0.90) | $ 1.18 | $ 0.28 | $ 2.07 | $ 5.53 |  | $ 2.67 |  | $ 5.15 |
Net Income (loss) per common share, Diluted: |  |  |  |  |  |  |  |  |  |  |  |  |  |
Diluted (in dollars per share) | 1.41 | 1.29 | 1.22 | 1.51 | (0.90) | 1.16 | 0.27 | 2.04 | 5.43 |  | 2.63 |  | 5.09 |
Dividends declared per common share (in dollars per share) | $ 0.55 | $ 0.55 | $ 0.55 | $ 0.55 | $ 0.50 | $ 0.50 | $ 0.50 | $ 0.50 | $ 2.20 |  | $ 2.00 |  | $ 1.80 |
[1] | See Note 7 for discussion of our adoption of ASU 2017-12 (as defined in Note 1) and the related reclassification of amounts previously presented in the Statements of Consolidated Income within Unrealized (gain) loss on derivative instruments and now included within Cost of products sold, excluding depreciation and amortization and other items.

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