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SHARE-BASED COMPENSATION (Tables)
3 Months Ended
Mar. 31, 2012
Weighted Average Assumptions Used in Estimating Value of Stock Options Granted
Weighted Average Assumptions Used in Estimating the Value of Stock Options Granted in 2012
 
OPTIONS
Expected volatility
40.41
%
Expected dividends
2.94
%
Expected term (in years)
5.33

Risk-free rate
1.01
%
Weighted average grant date fair value
$
5.72

Weighted Average Assumptions Used in Estimating the Value of Performance Share Units Granted
Weighted Average Assumptions Used in Estimating the Value of Performance Share Units Granted 2012
 
Performance Share Units
Performance period
1/1/2012 – 12/31/2013
 
Valuation date closing stock price
$
20.56
 
Expected dividends
2.92
%
Risk-free rate
0.08
%
0.32
%
Volatility
34.66
%
34.86
%
Weighted Average Assumptions Used to Re-measure Value of Stock Appreciation Rights
Weighted Average Assumptions Used to Remeasure the Value of Stock Appreciation Rights as of March 31, 2012
 
MARCH 31,
2012
Expected volatility
36.43
%
Expected dividends
2.74
%
Expected term (in years)
2.32

Risk-free rate
0.44
%
Weighted average fair value
$
4.33