| Schedule of Quarterly Financial Information |
Summarized unaudited quarterly financial results for 2016 and 2015 follows: | | | | | | | | | | | | | | | | | | 2016 Quarter | | First | | Second | | Third | | Fourth | | | (in thousands, except per share amounts) | Net sales | | $ | 502,909 |
| | $ | 504,767 |
| | $ | 506,090 |
| | $ | 678,781 |
| Gross profit | | $ | 167,748 |
| | $ | 150,919 |
| | $ | 151,717 |
| | $ | 192,820 |
| Net income | | $ | 12,882 |
| | $ | 10,144 |
| | $ | 11,617 |
| | $ | 22,774 |
| Earnings per basic share | | $ | 0.16 |
| | $ | 0.13 |
| | $ | 0.15 |
| | $ | 0.29 |
| Earnings per diluted share | | $ | 0.16 |
| | $ | 0.13 |
| | $ | 0.15 |
| | $ | 0.29 |
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| | | | | | | | | | | | | | | | | | 2015 Quarter | | First | | Second | | Third | | Fourth | | | (in thousands, except per share amounts) | Net sales | | $ | 502,378 |
| | $ | 535,582 |
| | $ | 546,616 |
| | $ | 765,553 |
| Gross profit | | $ | 166,444 |
| | $ | 177,190 |
| | $ | 191,089 |
| | $ | 260,554 |
| Net income | | $ | 13,062 |
| | $ | 21,028 |
| | $ | 26,307 |
| | $ | 56,116 |
| Earnings per basic share | | $ | 0.15 |
| | $ | 0.25 |
| | $ | 0.31 |
| | $ | 0.68 |
| Earnings per diluted share | | $ | 0.15 |
| | $ | 0.25 |
| | $ | 0.31 |
| | $ | 0.67 |
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