Share-Based Compensation (Tables)

3 Months Ended

Mar. 31, 2012

Share-Based Compensation [Abstract]

Weighted average estimated fair value

	2012
Weighted average estimated fair value	$	18.48
Quarterly dividend rate	$	0.29
Expected term of SAR, in years		4.7
Risk free interest rate		1.0	%
Dividend yield		2.7	%
Expected stock price volatility		43.3	%
Present value of dividends	$	5.37