Employee Stock Plans (Details) (USD $)	9 Months Ended
Sep. 30, 2012	Sep. 01, 2012
Employee Stock Plans [Abstract]
Stock options granted (in shares)	294,803
Exercise price of stock option (in dollars per share)		$ 12.97
Fair value of each option grant estimated on the grant date using the Black-Scholes Option Pricing Model [Abstract]
Weighted average fair value per option (in dollars per share)	$ 4.41
Risk free rate of interest (in hundredths)	0.70%
Expected volatility (in hundredths)	46.10%
Dividend yield (in hundredths)	2.00%
Expected life	5 years

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Agreed-upon price for the exchange of the underlying asset relating to the share-based payment award.

+ References

No definition available.

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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.

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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.

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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.

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- Definition

The risk-free interest rate assumption that is used in valuing an option on its own shares.

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Net number of share options (or share units) granted during the period.

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The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology.

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