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Accounting for stock-based compensation (Tables) | 9 Months Ended
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Sep. 30, 2014
Stock-Based Compensation Expense Recognized in Condensed Consolidated Statements of Operations | Total stock-based compensation expense recognized in the accompanying condensed consolidated statements of operations for the three and nine months ended September 30, 2014 and 2013 was as follows (in thousands):
|  | Three months ended September 30, |  |  | Nine months ended September 30, |
|  | 2014 |  |  | 2013 |  |  | 2014 |  |  | 2013 |
Stock-based compensation |  | $ | (4,827 | ) |  | $ | 15,943 |  |  | $ | 46,755 |  |  | $ | 31,304 |

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- Definition Tabular disclosure of share-based compensation plans that may be presented in a single table for outstanding, vested and expected to vest, and exercisable awards. The information that may be disclosed in this table may include, but is not limited to, number of shares, weighted average exercise price, weighted average remaining contractual life, and aggregate intrinsic value. + References No definition available. + Details
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