| Quarterly results of operations |
The following is a summary of the quarterly results of operations: | | | | | | | | | | | | | | | | | | | | | Quarter
Ended
December 31, | | Quarter
Ended
October 1, | | Quarter
Ended
July 2, | | Quarter
Ended
April 2, | | (Amounts in thousands, except per share data) | | 2016 | | 2016 | | 2016 | | 2016 | | Net sales | | $ | 462,293 |
| | $ | 530,392 |
| | $ | 510,545 |
| | $ | 408,614 |
| | | | | | | | | | | | Gross profit | | 103,484 |
| | 136,800 |
| | 135,289 |
| | 86,701 |
| | | | | | | | | | | | Net income (loss) | | 6,663 |
| (2), (3) | 54,755 |
| (2) | 41,646 |
| | (27,577 | ) | (2) | Net income (loss) per share attributable to common shareholders: | | | | | | | | | | Basic (1) | | $ | 0.10 |
| | $ | 0.80 |
| | $ | 0.61 |
| | $ | (0.40 | ) | | Diluted (1) | | $ | 0.10 |
| | $ | 0.80 |
| | $ | 0.61 |
| | $ | (0.40 | ) | | | | | | | | | | | | | | Quarter
Ended
December 31, | | Quarter
Ended
October 3, | | Quarter
Ended
July 4, | | Quarter
Ended
April 4, | | (Amounts in thousands, except per share data) | | 2015 | | 2015 | | 2015 | | 2015 | | Net sales | | $ | 430,460 |
| | $ | 530,884 |
| | $ | 502,334 |
| | $ | 376,048 |
| | | | | | | | | | | | Gross profit | | 99,907 |
| | 134,781 |
| | 124,743 |
| | 60,281 |
| | | | | | | | | | | | Net income (loss) | | 9,064 |
| | 41,711 |
| | 30,372 |
| | (48,859 | ) | | Net income (loss) per share attributable to common shareholders: | | | | | | | | | | Basic (1) | | $ | 0.13 |
| | $ | 0.61 |
| | $ | 0.45 |
| | $ | (0.72 | ) | | Diluted (1) | | $ | 0.13 |
| | $ | 0.61 |
| | $ | 0.45 |
| | $ | (0.72 | ) | |
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