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Earnings (Loss) Per Common Share - Additional Information (Detail) (Stock options [Member])
12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Stock options [Member]
     
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]      
Securities not included in the computation of diluted earnings per share because the effect would be antidilutive 172,000 194,500 197,000