Quarterly report pursuant to sections 13 or 15(d)

Stockholders' Equity - Summary of Authorized and Outstanding Equity (Detail)

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Stockholders' Equity - Summary of Authorized and Outstanding Equity (Detail)
 3 Months Ended
Mar. 31, 2014
Dec. 31, 2013
Jul. 12, 2013
Dec. 31, 2012
Common shares        
Common stock, shares outstanding         
Preferred shares        
Preferred stock, shares authorized 10,000,000      
Preferred stock, shares outstanding          
Class A Common Stock
        
Common shares        
Common stock, shares authorized 50,000,000      
Common stock, shares outstanding 7,522,974 7,522,974 5,509,297   
Common stock voting rights 1 vote per share      
Class B Common Stock
        
Common shares        
Common stock, shares authorized 25,000,000      
Common stock, shares outstanding 4,710,045 4,464,617     
Common stock voting rights 1 vote per share