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v3.7.0.1

Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2017 | Jun. 30, 2016 | Jun. 30, 2017 | Jun. 30, 2016
Consolidated Statements of Operations |  |  |  |
Net sales | $ 115,066 | $ 75,348 | $ 209,452 | $ 153,359
Cost of sales | 76,346 | 43,909 | 136,533 | 89,964
Gross profit | 38,720 | 31,439 | 72,919 | 63,395
Operating expenses, net: |  |  |  |
Research and development | 18,619 | 21,543 | 33,608 | 43,653
Selling, general, and administrative | 22,698 | 19,995 | 41,801 | 39,834
Amortization of intangible assets | 6,354 | 5,273 | 9,221 | 10,524
Restructuring | 3,257 | 2,095 | 4,595 | 2,195
Acquisition costs | 14,133 |  | 15,494 |
Asset impairment | 675 | 13,627 | 1,138 | 13,627
Other, net | (10) | 159 | (87) | 88
Total operating expenses, net | 65,726 | 62,692 | 105,770 | 109,921
Operating income (loss) | (27,006) | (31,253) | (32,851) | (46,526)
Interest income | 782 | 290 | 1,575 | 596
Interest expense | (5,061) | (105) | (9,196) | (143)
Income (loss) before income taxes | (31,285) | (31,068) | (40,472) | (46,073)
Income tax expense (benefit) | (12,897) | 1,014 | (23,179) | 1,542
Net income (loss) | $ (18,388) | $ (32,082) | $ (17,293) | $ (47,615)
Income (loss) per common share: |  |  |  |
Basic (in dollars per share) | $ (0.43) | $ (0.82) | $ (0.42) | $ (1.22)
Diluted (in dollars per share) | $ (0.43) | $ (0.82) | $ (0.42) | $ (1.22)
Weighted average number of shares: |  |  |  |
Basic (in shares) | 42,656 | 38,965 | 41,160 | 39,035
Diluted (in shares) | 42,656 | 38,965 | 41,160 | 39,035

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