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Share-Based Compensation - Summary of Restricted Stock Activity (Detail) (Restricted Stock [Member], USD $)
In Thousands, except Per Share data, unless otherwise specified
3 Months Ended 9 Months Ended
Sep. 30, 2014
Sep. 30, 2013
Sep. 30, 2014
Sep. 30, 2013
Restricted Stock [Member]
       
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Nonvested Shares at Beginning of Period     22  
Shares, Granted     80  
Shares, Vested     (31)  
Shares, Forfeited     (3)  
Nonvested Shares at End of Period 68   68  
Weighted-Average Fair Value per Share, Nonvested Shares at Beginning of Period     $ 10.40  
Weighted-Average Fair Value per Share, Granted $ 10.40 $ 10.40 $ 10.40 $ 10.40
Weighted-Average Fair Value per Share, Vested     $ 10.40  
Weighted-Average Fair Value per Share, Forfeited     $ 10.40  
Weighted-Average Fair Value per Share, Nonvested Shares at End of Period $ 10.40   $ 10.40