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INCOME AND FRANCHISE TAXES (Details) (USD $)
3 Months Ended
Mar. 31, 2014
Mar. 31, 2013
Dec. 31, 2013
INCOME AND FRANCHISE TAXES      
Change in valuation allowance recognized as income tax expense (benefit)   $ 119,800,000  
Income tax expense 5,518,000 (119,802,000)  
Valuation allowance for net deferred tax assets 2,900,000    
Net deferred tax assets $ 125,300,000   $ 137,200,000