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Stock-Based Compensation Plan (Schedule Of Valuation Assumptions Used In Computing Fair Value Of Stock-Based Awards) (Details) (USD $)
In Thousands, except Per Share data, unless otherwise specified |
3 Months Ended | |||
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Mar. 31, 2013
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||||
| Options granted | 33 | |||
| Vesting period | 5 years | |||
| Dividend yield | 0.00% | |||
| Expected life (years) | 6 years 11 months 12 days | |||
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Minimum [Member]
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||||
| Grant price | 8.02 | |||
| Expected volatility, minimum | 54.80% | [1] | ||
| Risk-free interest rate, minimum | 1.25% | |||
| Weighted average fair value | 4.46 | |||
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Maximum [Member]
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||||
| Grant price | 8.20 | |||
| Expected volatility, maximum | 55.20% | [1] | ||
| Risk-free interest rate, maximum | 1.40% | |||
| Weighted average fair value | 4.51 | |||
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| X | ||||||||||
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- Definition
Period which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Agreed-upon price for the exchange of the underlying asset relating to the share-based payment award. No definition available.
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- Definition
The estimated dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Expected term of share-based compensation awards, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The estimated measure of the maximum percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period. No definition available.
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| X | ||||||||||
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- Definition
The estimated measure of the minimum percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period. No definition available.
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| X | ||||||||||
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- Definition
The maximum risk-free interest rate assumption that is used in valuing an option on its own shares. No definition available.
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- Definition
The minimum risk-free interest rate assumption that is used in valuing an option on its own shares. No definition available.
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- Details
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| X | ||||||||||
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- Definition
Gross number of share options (or share units) granted during the period. No definition available.
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- Definition
The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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