XML 57 R46.htm IDEA: XBRL DOCUMENT v3.19.1
Intangible Assets - Estimated Amortization Expense (Detail) - USD ($)
$ in Thousands
Apr. 30, 2019
Jan. 31, 2019
Finite Lived Intangible Assets Future Amortization Expense Current And Five Succeeding Fiscal Years [Abstract]    
Remaining for Fiscal 2020 $ 4,492  
Fiscal 2021 3,629  
Fiscal 2022 3,182  
Fiscal 2023 3,182  
Fiscal 2024 3,182  
Thereafter 5,284  
Intangible assets, Net $ 22,951 $ 24,521