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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, 2013 | Sep. 30, 2012 | Sep. 30, 2013 | Sep. 30, 2012
Net revenues: |  |  |  |  |  |  |  |
Products | $ 139,846 |  | $ 114,647 |  | $ 388,998 |  | $ 427,986 |
Services | 26,607 |  | 26,800 |  | 76,028 |  | 81,726 |
Total net revenues | 166,453 |  | 141,447 |  | 465,026 |  | 509,712 |
Cost of revenues: |  |  |  |  |  |  |  |
Cost of products | 87,809 |  | 68,304 |  | 237,590 |  | 243,950 |
Cost of services | 16,410 |  | 16,572 |  | 48,542 |  | 48,884 |
Total cost of revenues | 104,219 |  | 84,876 |  | 286,132 |  | 292,834 |
Gross profit | 62,234 |  | 56,571 |  | 178,894 |  | 216,878 |
Research and development | 15,257 |  | 14,136 |  | 47,318 |  | 45,911 |
Selling, general and administrative | 33,158 |  | 29,661 |  | 102,140 |  | 96,332 |
Litigation |  |  | 5,316 |  |  |  | 5,316 |
Insurance reimbursement |  |  |  |  | (1,071) |  |  |
Completed acquisition costs |  |  | 851 |  | 171 |  | 1,258 |
Restructuring | 1,126 |  |  |  | 1,364 |  |  |
Amortization of intangible assets | 361 |  | 215 |  | 1,537 |  | 453 |
Income from operations | 12,332 |  | 6,392 |  | 27,435 |  | 67,608 |
Interest income | 221 |  | 299 |  | 760 |  | 760 |
Interest expense | 13 |  | 32 |  | 50 |  | 92 |
Income before income taxes | 12,540 |  | 6,659 |  | 28,145 |  | 68,276 |
Provision for income taxes | 10,082 |  | 4,079 |  | 12,606 |  | 24,356 |
Net income | 2,458 |  | 2,580 |  | 15,539 |  | 43,920 |
Other comprehensive income: |  |  |  |  |  |  |  |
Changes in value of financial instruments designated as cash flow hedges, net of tax (benefit) expense | (891) | [1] | (417) | [1] | 185 | [1] | (297) | [1]
Foreign currency translation adjustments, net of tax of $0 for the three and nine months ended September 30, 2013 and 2012 | 5,593 |  | 6,007 |  | (3,582) |  | 1,955 |
Unrealized gain (loss) on investments, net of tax expense (benefit) | 48 | [2] | 70 | [2] | (13) | [2] | 3 | [2]
Total comprehensive income | $ 7,208 |  | $ 8,240 |  | $ 12,129 |  | $ 45,581 |
Net income per share: |  |  |  |  |  |  |  |
Basic | $ 0.05 |  | $ 0.05 |  | $ 0.29 |  | $ 0.83 |
Diluted | $ 0.05 |  | $ 0.05 |  | $ 0.29 |  | $ 0.82 |
Cash dividends per common share | $ 0.16 |  | $ 0.16 |  | $ 0.48 |  | $ 0.46 |
Weighted average common shares outstanding: |  |  |  |  |  |  |  |
Basic | 53,165 |  | 52,854 |  | 52,998 |  | 52,679 |
Diluted | 53,513 |  | 53,290 |  | 53,410 |  | 53,240 |
[1] | (1) Tax (benefit) was $(491) and $(260) for the three months ended September 30, 2013 and 2012, respectively. Tax expense (benefit) was $161 and $(177) for the nine months ended September 30, 2013 and 2012, respectively.
[2] | (2) Tax expense was $26 and $44 for the three months ended September 30, 2013 and 2012, respectively. Tax (benefit) expense was $(11) and $2 for the nine months ended September 30, 2013 and 2012, respectively.

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- Definition The aggregate costs incurred (1) in a planned search or critical investigation aimed at discovery of new knowledge with the hope that such knowledge will be useful in developing a new product or service, a new process or technique, or in bringing about a significant improvement to an existing product or process; or (2) to translate research findings or other knowledge into a plan or design for a new product or process or for a significant improvement to an existing product or process whether intended for sale or the entity's use, during the reporting period charged to research and development projects, including the costs of developing computer software up to the point in time of achieving technological feasibility, and costs allocated in accounting for a business combination to in-process projects deemed to have no alternative future use. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 985 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6501960&loc=d3e128462-111756 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 730 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6420194&loc=d3e21568-108373 + Details
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