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Share-Based Payments (Tables) | 9 Months Ended
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Sep. 30, 2016
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 September 30, |  | Nine Months Ended September 30,
| 2016 |  | 2015 |  | 2016 |  | 2015
Cost of products | $ | 21 |  |  | $ | 21 |  |  | $ | 61 |  |  | $ | 76 |
Cost of services | 68 |  |  | 98 |  |  | 206 |  |  | 301 |
Research and development | 2,236 |  |  | 2,234 |  |  | 6,979 |  |  | 6,141 |
Selling, general and administrative | 8,467 |  |  | 6,032 |  |  | 23,385 |  |  | 20,006 |
Total | $ | 10,792 |  |  | $ | 8,385 |  |  | $ | 30,631 |  |  | $ | 26,524 |
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, 2015 | 11,043,528 |  |  | $ | 32.66 |  |  | 8.49
Granted | 4,384,860 |  |  | 29.42 |  |  |
Exercised | (1,162,843 | ) |  | (15.63 | ) |  |
Forfeited | (2,127,334 | ) |  | (43.29 | ) |  |
Expired | (34,804 | ) |  | (35.76 | ) |  |
Balances at September 30, 2016 | 12,103,407 |  |  | 31.24 |  |  | 8.50
Exercisable at September 30, 2016 | 3,369,252 |  |  | 27.99 |  |  | 7.25
Vested and Expected to Vest at September 30, 2016(1) | 10,177,058 |  |  | 30.99 |  |  | 8.37
(1) | The number of stock options expected to vest takes into account an estimate of expected forfeitures.

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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=6415400&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=6415400&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 of the number and weighted-average exercise prices (or conversion ratios) for share options (or share units) that were outstanding at the beginning and end of the year, vested and expected to vest, exercisable or convertible at the end of the year, and the number of share options or share units that were granted, exercised or converted, forfeited, and expired during the year. + 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 (c)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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