XML 40 R20.htm IDEA: XBRL DOCUMENT v2.4.0.8
Stock Repurchase - Additional Information (Detail) (USD $)
 1 Months Ended 9 Months Ended
Sep. 28, 2012
Mar. 28, 2012
Sep. 30, 2013
Sep. 30, 2012
Dec. 31, 2012
Sep. 21, 2012
Equity, Class of Treasury Stock [Line Items]            
Repurchase share price per share   $ 20 $ 0.01   $ 0.01  
Total consideration   $ 59,700,000        
Stock repurchase in cash     0 25,432,000    
Stock repurchase from issued shares     0   0  
Non-Voting Redeemable Preferred Stock with a liquidation preference     $ 1,000      
Professional and legal fees     514,000      
Redemption of outstanding shares of Series A Nonconvertible, Non-Voting Redeemable Preferred Stock           34,800,000
Decrease in dividend obligation after redemption of preferred stock 870,000          
Preferred stock redemption period     6 months      
Series A Nonconvertible Non Voting Redeemable Preferred Stock [Member]
            
Equity, Class of Treasury Stock [Line Items]            
Stock repurchase from issued shares     34,800      
Promoter One [Member]
            
Equity, Class of Treasury Stock [Line Items]            
Repurchase common stock held by promoter, one   2,485,929        
Promoter Two [Member]
            
Equity, Class of Treasury Stock [Line Items]            
Repurchase common stock held by promoter, one   500,000        
Cash [Member]
            
Equity, Class of Treasury Stock [Line Items]            
Stock repurchase in cash     $ 24,900,000