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Earnings per Share - Earnings per Basic and Diluted Weighted Average Common Share Outstanding for Continuing and Discontinued Operations (Detail) (USD $)
In Thousands, except Per Share data, unless otherwise specified
 3 Months Ended
Mar. 31, 2014
Mar. 31, 2013
Earnings Per Share [Abstract]    
Net income (loss) from continuing operations $ (1,211) $ 10,976
Net loss from discontinued operations (8,679) (1,470)
Net income (loss) $ (9,890) $ 9,506
Basic weighted-average common shares outstanding 9,508 9,437
Effect of potentially dilutive common shares   47
Diluted weighted-average common shares outstanding 9,508 9,484
Earnings (loss) per basic common share    
Continuing operations $ (0.13) $ 1.16
Discontinued operations $ (0.91) $ (0.15)
Total $ (1.04) $ 1.01
Earnings (loss) per diluted common share    
Continuing operations $ (0.13) $ 1.16
Discontinued operations $ (0.91) $ (0.16)
Total $ (1.04) $ 1.00
Antidilutive shares not included in diluted common share calculation   10