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STOCK-BASED COMPENSATION (Details) (USD $) Share data in Thousands, except Per Share data, unless otherwise specified	6 Months Ended
	Jun. 30, 2012
STOCK-BASED COMPENSATION [Abstract]
Stock-based compensation	$ 64,463
Number of options, outstanding [Roll forward]
Outstanding, beginning of period (in shares)	1,533
Granted (in shares)	46
Exercised (in shares)	(20)
Cancelled (in shares)	0
Outstanding, end of period (in shares)	1,559
Options, weighted average exercise price [Roll forward]
Outstanding, beginning of period (in dollars per share)	$ 3.99
Granted (in dollars per share)	$ 2.79
Exercised (in dollars per share)	$ 0.70
Cancelled (in dollars per share)	$ 0
Outstanding, end of period (in dollars per share)	$ 3.99
Fair value assumptions used for options [Abstract]
Expected volatility rate (in hundredths)	43.00%
Risk free interest rate (in hundredths)	0.40%
Expected dividend yield (in hundredths)	0.00%
Weighting percentages relative to our stock and the peer group	50%/50%
Maximum [Member]
Fair value assumptions used for options [Abstract]
Expected term (in years)	5 years
Minimum [Member]
Fair value assumptions used for options [Abstract]
Expected term (in years)	3 years

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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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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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The number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan.

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Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.

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