Accrued Expenses - Schedule of Accrued Expenses (Detail) - USD ($) $ in Thousands	Apr. 30, 2020	Jan. 31, 2020
Payables and Accruals [Abstract]
Accrued commissions	$ 5,868	$ 8,951
Accrued bonus	3,853	4,329
Accrued vacation	4,960	3,921
Payroll tax payable	10,236	7,353
Accrued other compensation and benefits	2,147	1,065
Total accrued compensation and benefits	27,064	25,619
Accrued fees payable to salesforce.com	6,059	5,787
Marketing event accruals	3,945	1,132
Taxes payable	3,452	4,914
Accrued third-party professional services subcontractors' fees	1,429	1,338
Other accrued expenses	8,520	8,449
Total accrued expenses and other current liabilities	$ 23,405	$ 21,620