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Earnings (Loss) and Dividends per Share - Additional Information (Detail) (USD $)
3 Months Ended 6 Months Ended 9 Months Ended
Sep. 30, 2014
Mar. 31, 2014
Sep. 30, 2013
Jun. 30, 2014
Sep. 30, 2014
Sep. 30, 2013
Earnings And Dividends Per Share [Abstract]            
Shares not included in computation of diluted Earning per share 150,000   40,000   150,000 40,000
Restricted stock awards participate in nonforfeitable dividend rights         1  
Common Stock, dividends, per share, declared   $ 0.05   $ 0.06 $ 0.06  
Common Stock, dividends, per share, Paid   $ 0.05   $ 0.06 $ 0.06