Income Taxes - Schedule of Effective Income Tax Rate (Details) - USD ($) $ in Thousands	12 Months Ended
	Jan. 31, 2022	Jan. 31, 2021	Jan. 31, 2020
Income Tax Disclosure [Abstract]
Income tax benefit at statutory rate	$ (63,606)	$ (55,165)	$ (36,997)
State taxes, net of federal benefit	68	143	298
Impact of foreign income taxes	34,730	25,569	5,376
Foreign branch income included in the United States	1,175	297	0
Stock-based compensation	(138,842)	(107,800)	(41,800)
Non-deductible expenses	2,200	991	2,114
Officer compensation in excess of $1 million	9,117	0	0
Change in valuation allowance	175,664	157,822	72,263
Research and development credits	(14,932)	(18,197)	(1,899)
Foreign tax credit	(2,470)	(711)	0
Foreign withholding tax expense	426	215	0
Prior year true ups	447	1,100	59
Other	0	(13)	(70)
Provision for (benefit from) income taxes	$ 3,977	$ 4,251	$ (656)