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Goodwill and Intangibles - Schedule of Estimated Amortization Expense of Intangibles (Detail) (USD $)
In Thousands, unless otherwise specified
Jun. 30, 2013
Dec. 31, 2012
Goodwill And Intangible Assets Disclosure [Abstract]    
Remaining in 2013 $ 441  
2014 809  
2015 777  
2016 531  
2017 398  
Thereafter 2,014  
Net Intangible Assets $ 4,970 $ 5,174