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Organization and Significant Accounting Policies - Estimated Future Amortization Expense (Detail) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2013
Dec. 31, 2012
Estimated Future Amortization Expense [Abstract]    
2014 $ 777  
2015 745  
2016 725  
2017 414  
2018 394  
Thereafter 1,250  
Net Carrying Amount $ 4,305 $ 4,838