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Goodwill and Intangible Assets (Detail) - (Table 3) (USD $)
In Thousands, unless otherwise specified
Sep. 30, 2013
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]  
2013 (remaining nine months) $ 836
2014 3,277
2015 3,093
2016 2,789
2017 2,548
Thereafter 8,467
Total $ 21,010