Other Long-Term Liabilities - Schedule of Other Long-Term Liabilities (Detail) - USD ($) $ in Thousands	Jul. 31, 2020	Jan. 31, 2020
Other Liabilities Disclosure [Abstract]
Unrecognized tax benefits, including interest	$ 8,445	$ 8,261
Deferred tax liabilities, non-current	1,287	1,288
Software license liabilities, non-current	6,533	8,159
Other long-term liabilities	413	68
Total other long-term liabilities	$ 16,678	$ 17,776