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Consolidated Statements of Operations (USD $) In Thousands, except Share data, unless otherwise specified | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2014 | Sep. 30, 2013 | Sep. 30, 2014 | Sep. 30, 2013
Income Statement [Abstract] |  |  |  |  |  |  |  |
Net sales | $ 1,253,227 |  | $ 1,004,165 |  | $ 3,279,479 |  | $ 2,807,859 |
Cost of sales | 891,707 |  | 699,694 |  | 2,324,978 |  | 2,002,092 |
Gross profit | 361,520 |  | 304,471 |  | 954,501 |  | 805,767 |
Selling, general and administrative expenses | 54,759 |  | 37,869 |  | 132,897 |  | 109,883 |
Income from operations | 306,761 |  | 266,602 |  | 821,604 |  | 695,884 |
Other income (expense) |  |  |  |  |  |  |  |
Interest expense | (9,486) |  | (3,297) |  | (28,182) |  | (14,921) |
Other (expense) income, net | (2,670) |  | (287) |  | 4,440 |  | 3,137 |
Income before income taxes | 294,605 |  | 263,018 |  | 797,862 |  | 684,100 |
Provision for income taxes | 124,449 |  | 92,728 |  | 300,231 |  | 244,647 |
Net income | 170,156 |  | 170,290 |  | 497,631 |  | 439,453 |
Net income attributable to noncontrolling interests | 2,399 |  | 0 |  | 2,399 |  | 0 |
Net income to Westlake Chemical Corporation | $ 167,757 |  | $ 170,290 |  | $ 495,232 |  | $ 439,453 |
Earnings per share: |  |  |  |  |  |  |  |
Basic | $ 1.26 | [1] | $ 1.28 | [1] | $ 3.71 | [1] | $ 3.29 | [1]
Diluted | $ 1.25 | [1] | $ 1.27 | [1] | $ 3.69 | [1] | $ 3.27 | [1]
Weighted average shares outstanding: |  |  |  |  |  |  |  |
Basic | 133,299,458 | [1] | 133,257,494 | [1] | 133,199,304 | [1] | 133,256,054 | [1]
Diluted | 133,846,059 | [1] | 133,811,108 | [1] | 133,743,145 | [1] | 133,806,758 | [1]
Dividends per common share | $ 0.1650 |  | $ 0.1125 |  | $ 0.4170 |  | $ 0.3000 |
[1] | Share amounts and per share data for the three and nine months ended September 30, 2013 have been restated to reflect the effect of a two-for-one stock split on March 18, 2014. See Note 1 for additional information.

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