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Schedule Of Assumptions Used (Detail)
3 Months Ended
Mar. 31, 2014
Mar. 31, 2013
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]    
Expected life (in years) 6 years 0 years
Risk-free interest rate 1.74% 0.00%
Expected volatility 62.58% 0.00%
Dividend yield 0.00% 0.00%