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Condensed Consolidated Statements of Income (Loss) (Unaudited) - USD ($) shares in Thousands, $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2017 | Sep. 30, 2016 | Sep. 30, 2017 | Sep. 30, 2016
Income Statement [Abstract] |  |  |  |
Net sales | $ 309,664 | $ 295,268 | $ 916,156 | $ 903,284
Cost of sales | 108,233 | 106,454 | 318,584 | 360,675
Product remediation | 1,642 | 689 | 2,573 | 2,243
Gross profit | 199,789 | 188,125 | 594,999 | 540,366
Operating expenses: |  |  |  |
Selling, general and administrative | 121,177 | 109,233 | 353,943 | 345,744
Research and development | 31,393 | 32,175 | 104,051 | 94,076
Merger and integration expenses | 2,013 | 7,576 | 7,743 | 20,537
Restructuring expenses | 792 | 4,381 | 12,060 | 37,219
Amortization of intangibles | 12,350 | 11,775 | 35,445 | 33,959
Total operating expenses | 167,725 | 165,140 | 513,242 | 531,535
Income from operations | 32,064 | 22,985 | 81,757 | 8,831
Interest income | 199 | 585 | 724 | 1,119
Interest expense | (1,421) | (3,495) | (5,314) | (6,665)
Gain on acquisition of Caisson Interventional, LLC | 0 | 0 | 39,428 | 0
Foreign exchange and other gains (losses) | 491 | 1,216 | 957 | (2)
Income before income taxes | 31,333 | 21,291 | 117,552 | 3,283
Income tax expense | 1,913 | 9,731 | 10,881 | 16,891
Losses from equity method investments | (1,590) | (13,129) | (20,072) | (19,382)
Net income (loss) | $ 27,830 | $ (1,569) | $ 86,599 | $ (32,990)
Basic income (loss) per share (in Dollars per Share) | $ 0.58 | $ (0.03) | $ 1.80 | $ (0.67)
Diluted income (loss) per share (in Dollars per Share) | $ 0.57 | $ (0.03) | $ 1.79 | $ (0.67)
Shares used in computing basic income (loss) per share (in Shares) | 48,181 | 49,075 | 48,130 | 49,016
Shares used in computing diluted income (loss) per share (in Shares) | 48,534 | 49,075 | 48,339 | 49,016

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