v2.4.0.8
Redeemable Preferred Stock - Additional Information (Detail) (USD $)
Mar. 31, 2014
Dec. 31, 2013
Temporary Equity [Line Items]    
Preferred stock, shares authorized 225,000,000  
Preferred stock, par value $ 0.01  
Series A Preferred Stock [Member]
   
Temporary Equity [Line Items]    
Preferred stock, shares authorized 87,500,000  
Preferred stock, par value $ 5.7468681218  
Preferred stock, shares issued 87,229,703 87,229,703
Preferred stock, shares outstanding 87,103,210 87,184,179