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Goodwill and Other Intangible Assets - Future Estimated Amortization Expense Related to Amortizable Intangible Assets (Detail) - USD ($)
$ in Thousands
Jul. 31, 2019
Jan. 31, 2019
For fiscal years ending January 31    
2020 $ 961  
2021 1,775  
2022 1,245  
2023 1,141  
2024 938  
Thereafter 3,849  
Net Carrying Amount $ 9,909 $ 10,495