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Goodwill and Intangible Assets - Estimated Future Amortization Expense (Detail) (USD $)
In Thousands, unless otherwise specified
Oct. 31, 2014
Goodwill and Intangible Assets Disclosure [Abstract]  
Estimated Future Amortization Expense, For the eight-month transition period ending December 31, 2014 $ 502
Estimated Future Amortization Expense, For the fiscal year ending December 31, 2015 2,569
Estimated Future Amortization Expense, For the fiscal year ending December 31, 2016 2,045
Estimated Future Amortization Expense, For the fiscal year ending December 31, 2017 1,783
Estimated Future Amortization Expense, For the fiscal year ending December 31, 2018 1,582
Estimated Future Amortization Expense, Thereafter $ 3,831