Income Taxes (Tables)

12 Months Ended

Jan. 31, 2021

Income Tax Disclosure [Abstract]

Schedule of Components of Loss Before Income Taxes

The components of loss before income taxes were as follows (in thousands):

	Fiscal Year Ended January 31,
	2021		2020		2019
U.S.	$	(544,700)	$	(351,100)	$	(178,732)
Foreign	7,660		3,558		1,524
Loss before income taxes	$	(537,040)	$	(347,542)	$	(177,208)

Schedule of Provision for Income Taxes

The provision for income taxes consists of the following (in thousands):

	Fiscal Year Ended January 31,
	2021		2020		2019
Current provision:
State	$	704	$	194	$	356
Foreign	1,388		1,400		477
Deferred benefit:
Federal	(28)		(512)		(11)
State	(2)		(89)		(2)
Provision for income taxes	$	2,062	$	993	$	820

Schedule of Effective Income Tax Rate Reconciliation

The effective income tax rate differs from the federal statutory income tax rate applied to the loss before provision for income taxes due to the following (in thousands):

	Fiscal Year Ended January 31,
	2021		2020		2019
Income tax expense computed at federal statutory rate	$	(112,778)	$	(72,984)	$	(37,214)
State taxes, net of federal benefit	14,818		(12,239)		(6,168)
Research and development credits	(56,633)		(5,805)		(5,278)
Stock-based compensation	(246,363)		6,905		1,150
Change in valuation allowance	391,659		83,966		47,521
Other	11,359		1,150		809
Provision for income taxes	$	2,062	$	993	$	820

Schedule of Deferred Tax Assets and Liabilities

Significant components of the Company’s deferred tax assets and deferred tax liabilities are shown below (in thousands):

	January 31,
	2021		2020
Deferred tax assets:
Net operating losses carryforwards	$	479,564	$	157,995
Tax credit carryforwards	72,138		14,892
Stock-based compensation	49,548		4,437
Lease liabilities	50,834		50,624
Other	19,368		1,651
Total deferred tax assets	671,452		229,599
Less: valuation allowance	(599,603)		(165,067)
Net deferred tax assets	71,849		64,532
Deferred tax liabilities:
Capitalized commissions	(21,506)		(17,698)
Operating lease right-of-use assets	(50,343)		(46,834)
Total deferred tax liabilities	(71,849)		(64,532)
Net deferred tax assets (liabilities)	$	—	$	—

Summary of Income Tax Contingencies

The following table shows the changes in the gross amount of unrecognized tax benefits (in thousands):

	Fiscal Year Ended January 31,
	2021		2020		2019
Beginning balance	$	4,057	$	2,407	$	933
Increases based on tax positions during the prior period	35		—		—
Increases based on tax positions during the current period	15,257		1,650		1,474
Ending balance	$	19,349	$	4,057	$	2,407