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Share-Based Payments (Tables) | 6 Months Ended
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Jun. 30, 2017
Disclosure of Compensation Related Costs, Share-based Payments [Abstract] |
Schedule of Stock-Based Compensation Costs | Stock-based compensation costs included in the consolidated statements of operations are presented below:
| Three Months Ended June 30, |  | Six Months Ended June 30,
| 2017 |  | 2016 |  | 2017 |  | 2016
Cost of products | $ | 30 |  |  | $ | 20 |  |  | $ | 56 |  |  | $ | 40 |
Cost of services | 82 |  |  | 70 |  |  | 160 |  |  | 138 |
Research and development | 2,442 |  |  | 2,178 |  |  | 4,635 |  |  | 4,743 |
Selling, general and administrative | 9,444 |  |  | 4,383 |  |  | 15,041 |  |  | 14,918 |
Total | $ | 11,998 |  |  | $ | 6,651 |  |  | $ | 19,892 |  |  | $ | 19,839 |
Schedule of Stock Option Activity | Stock option activity was as follows:
| Number of Shares |  | Weighted Average Exercise Price |  | Weighted Average Remaining Contractual Term (Years)
Balances at December 31, 2016 | 11,640,383 |  |  | $ | 31.25 |  |  | 8.21
Granted | 3,672,950 |  |  | 21.46 |  |  |
Adjustment due to dividend (Note 14) | 46,766 |  |  | 31.11 |  |  |
Exercised | (39,048 | ) |  | (16.65 | ) |  |
Forfeited | (2,375,366 | ) |  | (30.22 | ) |  |
Expired | (124,134 | ) |  | (31.95 | ) |  |
Balances at June 30, 2017 | 12,821,551 |  |  | 28.56 |  |  | 8.04
Exercisable at June 30, 2017 | 4,545,590 |  |  | 28.59 |  |  | 6.69

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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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- Definition Tabular disclosure for stock option plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value. + 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 (d) -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 2 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 + Details
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