Income Taxes - Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands	Jan. 31, 2022	Jan. 31, 2021
Deferred tax assets:
Net operating loss carryforwards	$ 377,285	$ 126,840
Accruals and reserves	9,429	7,304
Stock-based compensation	37,751	6,010
Deferred revenue	4,722	9,337
Research and development	15,372	2,755
Foreign exchange	4,478	0
Excessive borrowing	1,370	0
Other	1,170	807
Total deferred tax assets, gross	451,577	153,053
Less: valuation allowance	(422,262)	(137,766)
Total deferred tax assets, net of valuation allowance	29,315	15,287
Deferred tax liabilities:
Intangible assets	(579)	(2,894)
Depreciation and amortization	(1,446)	(897)
Commissions	(16,695)	(6,054)
Other	(1)	(74)
Total deferred tax liabilities	(18,721)	(9,919)
Net deferred tax asset	10,594	5,368
Deferred tax asset	10,628	8,118
Net deferred tax liability (included in other liabilities, non-current)	$ (34)	$ (2,750)