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Goodwill and Intangible Assets - Estimated Amortization Expense (Detail) (USD $)
In Thousands, unless otherwise specified
Jun. 30, 2013
Goodwill And Intangible Assets Disclosure [Abstract]  
2013 (remaining) $ 794
2014 1,627
2015 1,611
2016 1,445
2017 1,411
2018 1,402
Thereafter $ 4,233