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Intangible Assets - Summary of Estimated Amortization Expense (Detail)
$ in Thousands
Jul. 28, 2018
USD ($)
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]  
Remaining 2019 $ 2,073
2020 4,234
2021 4,104
2022 4,017
2023 $ 4,012