Accrued Expenses and Other Current Liabilities (Details) - USD ($) $ in Thousands	Oct. 31, 2021	Jan. 31, 2021
Payables and Accruals [Abstract]
Accrued compensation	$ 82,238	$ 62,451
Accrued third-party cloud infrastructure expenses	13,977	6,648
Employee contributions under employee stock purchase plan	11,252	22,068
Employee payroll tax withheld on employee stock transactions	10,222	1,340
Accrued professional services	8,199	6,628
Accrued taxes	6,850	4,498
Accrued purchases of property and equipment	2,550	6,718
Other	27,950	14,964
Total accrued expenses and other current liabilities	$ 163,238	$ 125,315