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STOCK-BASED COMPENSATION (Detail) - Summary of Share Based Payment Award, Valuation Assumptions	6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011
Expected option lives	3.5	3.5
Expected volatility	51.75%	55.98%
Risk-free interest rate	0.58%	1.54%
Expected dividend yield	5.47%	3.51%

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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