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Goodwill and Intangible Assets, Net - Schedule of Amortization Expense of Intangible Assets (Detail) (USD $)
In Thousands, unless otherwise specified
Sep. 30, 2014
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]  
2015 $ 20,777
2016 22,005
2017 14,856
2018 11,844
2019 8,793
Thereafter 15,270
Total $ 93,545