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Intangible Assets - Estimated Amortization (Detail) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2013
Dec. 31, 2012
Finite Lived Intangible Assets Future Amortization Expense [Abstract]    
2014 $ 749  
2015 602  
2016 502  
2017 502  
2018 502  
Thereafter 431  
Estimated amortization $ 3,288 $ 4,048