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Stock incentive plans (Details)
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9 Months Ended |
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Sep. 30, 2013
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2011 Plan
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| Stock incentive plans | |
| Common stock shares reserved for issuance | 7,108,013 |
| Annual percentage increase alternative, increase in common stock reserved for issuance as a percentage of common stock outstanding | 4.50% |
| Annual fixed increase alternative, increase in shares of common stock reserved for issuance (in shares) | 3,000,000 |
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2001 Plan
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| Stock incentive plans | |
| Number of shares available for grant (in shares) | 0 |
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- Details
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- Definition
The maximum number of shares (or other type of equity) originally approved (usually by shareholders and board of directors), net of any subsequent amendments and adjustments, for awards under the equity-based compensation plan. As stock or unit options and equity instruments other than options are awarded to participants, the shares or units remain authorized and become reserved for issuance under outstanding awards (not necessarily vested). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Under the fixed increase alternative, represents the potential annual increase in shares of common stock reserved for issuance as share-based compensation. No definition available.
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- Definition
Under the automatic percentage increase alternative, represents the potential annual increase in common stock reserved for issuance as share-based compensation, expressed as a percentage of common stock outstanding at the beginning of each fiscal year. No definition available.
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