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Goodwill and Intangible Assets - Schedule of Expected Amortization Expense (Detail) (USD $)
In Thousands, unless otherwise specified
Jun. 30, 2013
Finite Lived Intangible Assets Future Amortization Expense [Abstract]  
2013 $ 2,400
2014 1,967
2015 1,737
2016 468
2017 288
Thereafter $ 144