Stock Based Compensation (Tables)

9 Months Ended

Sep. 30, 2012

Stock Based Compensation [Abstract]

Assumptions used to estimate fair value of options granted

The Company records compensation expense for employee stock options based on the estimated fair value of the options on the date of grant using the Black-Scholes option-pricing model with the assumptions included in the table below. The Company uses historical data among other factors to estimate the expected price volatility, the expected term and the expected forfeiture rate. The risk-free rate is based on the U.S. Treasury yield curve in effect at the time of grant for the estimated life of the option. The following assumptions were used to estimate the fair value of options granted during the nine-month periods ended September 30, 2012 and September 30, 2011, using the Black-Scholes option-pricing model.

	Nine Months Ended			Nine Months Ended
	September 30, 2012			September 30, 2011
Expected dividend yield		2.73	%		1.57 - 2.66	%
Expected stock price volatility		53.52 - 57.19	%		48.80 - 53.21	%
Risk-free interest rate		1.24 - 1.33	%		1.33 - 2.84	%
Weighted-average expected life of options		6.21 - 7.70	years		6.28 - 7.63	years
Forfeiture rate		1.00 - 3.00	%		1.00 - 3.00	%