| Unaudited Quarterly Financial Data |
The unaudited summarized financial data by quarter for the years ended December 31, 2015 and 2014 is presented in the table below: | | | | | | | | | | | | | | | | | (dollars in thousands) | Quarter 1 | | Quarter 2 | | Quarter 3 | | Quarter 4 | 2015: | | | | | | | | Net sales | $ | 248,774 |
| | $ | 253,998 |
| | $ | 259,437 |
| | $ | 265,238 |
| Gross profit | 99,534 |
| | 99,795 |
| | 108,285 |
| | 111,217 |
| Selling, general, and administrative expenses | 47,399 |
| | 59,660 |
| | 58,664 |
| | 60,993 |
| Operating income | 52,135 |
| | 40,135 |
| | 49,621 |
| | 18,224 |
| Net income | 30,046 |
| | 22,638 |
| | 27,066 |
| | 9,638 |
| Basic net income per common share | $ | 0.15 |
| | $ | 0.12 |
| | $ | 0.14 |
| | $ | 0.05 |
| Diluted net income per common share | $ | 0.15 |
| | $ | 0.11 |
| | $ | 0.14 |
| | $ | 0.05 |
| Basic weighted average shares | 195,745,670 |
| | 195,747,954 |
| | 196,062,348 |
| | 196,173,169 |
| Diluted weighted average shares | 197,773,850 |
| | 197,709,082 |
| | 198,254,808 |
| | 198,076,031 |
| | | | | | | | | 2014: | | | | | | | | Net sales | $ | 226,247 |
| | $ | 218,654 |
| | $ | 234,770 |
| | $ | 238,089 |
| Gross profit | 96,335 |
| | 84,993 |
| | 94,226 |
| | 91,313 |
| Selling, general, and administrative expenses | 42,722 |
| | 46,100 |
| | 45,419 |
| | 53,623 |
| Operating income | 53,613 |
| | 38,893 |
| | 48,807 |
| | 37,690 |
| Net income | 31,153 |
| | 21,911 |
| | 27,713 |
| | 21,154 |
| Basic net income per common share | $ | 0.16 |
| | $ | 0.11 |
| | $ | 0.14 |
| | $ | 0.11 |
| Diluted net income per common share | $ | 0.16 |
| | $ | 0.11 |
| | $ | 0.14 |
| | $ | 0.11 |
| Basic weighted average shares | 195,720,894 |
| | 195,733,692 |
| | 195,743,154 |
| | 195,743,154 |
| Diluted weighted average shares | 197,747,579 |
| | 197,827,833 |
| | 197,884,029 |
| | 197,853,482 |
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