Accrued Expenses and Other Current Liabilities (Details) - USD ($) $ in Thousands	Jan. 31, 2022	Jan. 31, 2021
Payables and Accruals [Abstract]
Accrued compensation	$ 98,916	$ 62,451
Employee contributions under employee stock purchase plan	28,497	22,068
Accrued third-party cloud infrastructure expenses	13,341	6,648
Accrued taxes	12,709	4,498
Accrued professional services	7,068	6,628
Accrued purchases of property and equipment	4,204	6,718
Other	35,929	16,304
Accrued expenses and other current liabilities	$ 200,664	$ 125,315