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Goodwill and Intangible Assets - Summary of Estimated Amortization Expense for Future Years (Detail)
$ in Thousands
Jun. 30, 2015
USD ($)
Goodwill and Intangible Assets Disclosure [Abstract]  
For the six months ended December 31, 2015 $ 16,594
For the year ended December 31, 2016 32,856
For the year ended December 31, 2017 30,075
For the year ended December 31, 2018 16,763
For the year ended December 31, 2019 $ 6,211