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Stock-Based Compensation (Tables) | 6 Months Ended
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Jun. 30, 2018
Stock-Based Compensation |
Schedule of stock-based compensation costs recognized in the Condensed Consolidated Statements of Income | The following table presents details of stock-based compensation costs recognized in the Condensed Consolidated Statements of Income (in thousands):
|  | Three Months Ended |  | Six Months Ended |
|  | June 30, 2018 |  | July 1, 2017 |  | June 30, 2018 |  | July 1, 2017 |
Cost of revenues |  | $ | 294 |  | $ | 264 |  | $ | 590 |  | $ | 522 |
Research and development |  | 5,669 |  | 5,503 |  | 11,438 |  | 10,750 |
Selling, general and administrative |  | 6,156 |  | 5,399 |  | 12,283 |  | 10,380 |
|  | 12,119 |  | 11,166 |  | 24,311 |  | 21,652 |
Income tax benefit |  | 1,677 |  | 3,175 |  | 6,896 |  | 8,457 |
|  | $ | 10,442 |  | $ | 7,991 |  | $ | 17,415 |  | $ | 13,195 |

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- Definition Tabular disclosure of the allocation of equity-based compensation costs to a given line item on the balance sheet and income statement for the period. This may include the reporting line for the costs and the amount capitalized and expensed. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5047-113901 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 14.F) -URI http://asc.fasb.org/extlink&oid=27013229&loc=d3e301413-122809 + Details
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