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Consolidated Statements of Operations and Comprehensive Income (USD $) In Thousands, except Per Share data, unless otherwise specified | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2014 | Sep. 30, 2013 | Sep. 30, 2014 | Sep. 30, 2013
Net revenues: |  |  |  |  |  |  |  |
Products | $ 158,520 |  | $ 139,846 |  | $ 497,172 |  | $ 388,998 |
Services | 28,278 |  | 26,607 |  | 80,676 |  | 76,028 |
Total net revenues | 186,798 |  | 166,453 |  | 577,848 |  | 465,026 |
Cost of revenues: |  |  |  |  |  |  |  |
Cost of products | 89,181 |  | 87,809 |  | 276,905 |  | 237,590 |
Cost of services | 18,292 |  | 16,410 |  | 52,611 |  | 48,542 |
Total cost of revenues (exclusive of amortization shown separately below) | 107,473 |  | 104,219 |  | 329,516 |  | 286,132 |
Gross profit | 79,325 |  | 62,234 |  | 248,332 |  | 178,894 |
Research and development | 15,827 |  | 15,257 |  | 46,866 |  | 47,318 |
Selling, general and administrative | 32,365 |  | 33,158 |  | 99,195 |  | 102,140 |
Insurance reimbursement |  |  |  |  |  |  | (1,071) |
Acquisition costs |  |  |  |  | 499 |  | 171 |
Restructuring | 1,223 |  | 1,126 |  | 1,970 |  | 1,364 |
Amortization of intangible assets | 1,760 |  | 361 |  | 3,214 |  | 1,537 |
Income from operations | 28,150 |  | 12,332 |  | 96,588 |  | 27,435 |
Interest income | 399 |  | 221 |  | 895 |  | 760 |
Interest expense | 5 |  | 13 |  | 35 |  | 50 |
Income before income taxes | 28,544 |  | 12,540 |  | 97,448 |  | 28,145 |
(Benefit) provision for income taxes | (573) |  | 10,082 |  | 15,862 |  | 12,606 |
Net income | 29,117 |  | 2,458 |  | 81,586 |  | 15,539 |
Other comprehensive income: |  |  |  |  |  |  |  |
Changes in value of financial instruments designated as cash flow hedges, net of tax expense (benefit) | 1,302 | [1] | (891) | [1] | 458 | [1] | 185 | [1]
Foreign currency translation adjustments, net of tax of $0 for the three months and nine months ended September 30, 2014 and 2013 | (9,598) |  | 5,593 |  | (7,604) |  | (3,582) |
Unrealized (loss) gain on investments, net of tax expense (benefit) | (71) | [2] | 48 | [2] | (29) | [2] | (13) | [2]
Total comprehensive income | $ 20,750 |  | $ 7,208 |  | $ 74,411 |  | $ 12,129 |
Net income per share: |  |  |  |  |  |  |  |
Basic | $ 0.55 |  | $ 0.05 |  | $ 1.53 |  | $ 0.29 |
Diluted | $ 0.55 |  | $ 0.05 |  | $ 1.52 |  | $ 0.29 |
Cash dividends per common share | $ 0.165 |  | $ 0.160 |  | $ 0.490 |  | $ 0.480 |
Weighted average common shares outstanding: |  |  |  |  |  |  |  |
Basic | 53,054 |  | 53,165 |  | 53,276 |  | 52,998 |
Diluted | 53,310 |  | 53,513 |  | 53,541 |  | 53,410 |
[1] | Tax expense (benefit) was $671 and $(491) for the three months ended September 30, 2014 and 2013, respectively. Tax expense was $134 and $161 for the nine months ended September 30, 2014 and 2013, respectively.
[2] | Tax (benefit) expense was $(37) and $26 for the three months ended September 30, 2014 and 2013, respectively. Tax (benefit) was $(8) and $(11) for the nine months ended September 30, 2014 and 2013, respectively.

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