|
Share Based Compensation (Assumptions) (Details) (USD $)
|
12 Months Ended | ||
|---|---|---|---|
|
Dec. 31, 2011
Y
|
Dec. 31, 2010
Y
|
Dec. 31, 2009
Y
|
|
| Assumptions | |||
| Risk-free interest rate | 1.95% | 2.30% | 2.70% |
| Expected dividend yield | 2.63% | 0.68% | 0.96% |
| Expected volatility of Huntington's common stock | 30.00% | 38.50% | 51.80% |
| Expected option term (years) | 6.0 | 6.0 | 6.0 |
| Weighted-average grant date fair value per share | $ 1.40 | $ 2.20 | $ 1.95 |
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- 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
|
| X | ||||||||||
|
- Definition
The period of time an equity-based award is expected to be outstanding. An equity-based award's expected term is generally determined based on, among other factors, the instrument's contractual term and the effects of employees' expected exercise and post-vesting employment termination behavior. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The estimated measure of the 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. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The risk-free interest rate assumption that is used in valuing an option on its own shares. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- 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
|