Equity - Narrative (Details) $ / shares in Units, $ in Thousands							12 Months Ended
	Dec. 20, 2023 USD ($) shares	Feb. 01, 2023 shares	Mar. 31, 2022 USD ($) founder shares	Mar. 03, 2021 shares	Mar. 01, 2021 vote $ / shares shares	Feb. 28, 2021 vote	Jan. 31, 2024 USD ($) $ / shares shares	Jan. 31, 2023 USD ($) founder $ / shares shares	Jan. 31, 2022 USD ($) shares	Feb. 28, 2023 USD ($)	Jan. 31, 2021 shares	Sep. 30, 2020 class $ / shares shares
Share-based Compensation Arrangement by Share-based Payment Award
Preferred stock, shares authorized (in shares)							200,000,000	200,000,000				200,000,000
Preferred stock, par value (in dollars per share) | $ / shares							$ 0.0001	$ 0.0001				$ 0.0001
Common stock, number of classes of stock | class												2
Conversion, percent threshold						10.00%
Stock repurchase program, authorized amount | $										$ 2,000,000
Shares authorized for repurchase | $							$ 1,400,000
Repurchases of common stock as treasury stock (in shares)							(500,000)
Treasury stock reissued (in shares)							8,000
Common stock reserved for future issuances (shares)							121,461,000	115,449,000
Shares authorized (in shares)							16,165,000	15,619,000	14,397,000
Granted (per share) | $ / shares								$ 101.66
Options granted (shares)							0	642,000	0
Intrinsic value of shares exercised | $							$ 1,300,000	$ 1,000,000	$ 5,700,000
Grant date fair value of vested shares | $							$ 42,300	$ 79,100	$ 81,000
Shares available for grant (in shares)							59,371,000	52,989,000	45,446,000		32,870,000
Stock-based compensation, net of amounts capitalized | $							$ 1,168,015	$ 861,533	$ 605,095
Expected dividend yield							0.00%	0.00%	0.00%
Unrecognized share-based compensation expense | $							$ 3,000,000
Unrecognized share-based compensation expense recognition period (term)							2 years 10 months 24 days
Employee stock purchase rights under the 2020 ESPP
Share-based Compensation Arrangement by Share-based Payment Award
Common stock reserved for future issuances (shares)							13,764,000	11,046,000
Shares authorized (in shares)		3,200,000
Stock market discount							85.00%
Offering period							6 months
Expected dividend yield							0.00%	0.00%	0.00%
Stock options
Share-based Compensation Arrangement by Share-based Payment Award
Vesting period (years)							4 years
Expiration period (years)							10 years
Expected dividend yield								0.00%
Equity-Classified Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award
Granted (in shares)							12,706,000	10,788,000	4,026,000
Nonvested (in shares)							19,575,000	15,560,000	9,612,000		9,348,000
2020 Plan
Share-based Compensation Arrangement by Share-based Payment Award
Shares authorized (in shares)		16,200,000
2020 Plan | Stock options
Share-based Compensation Arrangement by Share-based Payment Award
Common stock reserved for future issuances (shares)							602,000	642,000
2020 Plan | RSUs
Share-based Compensation Arrangement by Share-based Payment Award
Common stock reserved for future issuances (shares)							20,168,000	13,039,000
2020 Plan | Equity-Classified Performance Shares
Share-based Compensation Arrangement by Share-based Payment Award
Vesting period (years)							4 years
Stock-based compensation, net of amounts capitalized | $							$ 30,800
Granted (in shares)							500,000
2020 Plan | Equity-Classified Performance Shares | Minimum
Share-based Compensation Arrangement by Share-based Payment Award
Performance target, percentage							0.00%
2020 Plan | Equity-Classified Performance Shares | Maximum
Share-based Compensation Arrangement by Share-based Payment Award
Performance target, percentage							120.00%
2020 Plan | Equity-Classified Performance Shares | Grant Date
Share-based Compensation Arrangement by Share-based Payment Award
Vesting period (years)							1 year
2020 Plan | Equity-Classified Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award
Vesting period (years)							4 years
2012 Plan | Stock options
Share-based Compensation Arrangement by Share-based Payment Award
Common stock reserved for future issuances (shares)							26,767,000	35,212,000
Expiration period (years)							10 years
2012 Plan | RSUs
Share-based Compensation Arrangement by Share-based Payment Award
Common stock reserved for future issuances (shares)							789,000	2,521,000
2012 Plan | Equity-Classified Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award
Vesting period (years)							4 years
2012 Plan | Equity-Classified Restricted Stock Units (RSUs) | Grant Date
Share-based Compensation Arrangement by Share-based Payment Award
Vesting period (years)							1 year
Outside of the Plans | Restricted Common Stock
Share-based Compensation Arrangement by Share-based Payment Award
Granted (in shares)							385,000	409,000
Nonvested (in shares)							671,000	428,000	380,000		742,000
Samooha, Inc. | Investing Subsidiary
Share-based Compensation Arrangement by Share-based Payment Award
Business acquisition, equity interest issued or issuable (in shares)	200,000						200,000
Samooha, Inc. | 2020 Plan | Liability-Classified Performance Shares
Share-based Compensation Arrangement by Share-based Payment Award
Vesting period (years)	4 years
Shares available for grant (in shares)	1,700,000
Stock-based compensation, net of amounts capitalized | $							$ 500
Samooha, Inc. | 2020 Plan | Liability-Classified Performance Shares | Grant Date
Share-based Compensation Arrangement by Share-based Payment Award
Vesting period (years)	1 year
Streamlit, Inc.
Share-based Compensation Arrangement by Share-based Payment Award
Number of founders | founder			3					3
Class A Common Stock
Share-based Compensation Arrangement by Share-based Payment Award
Common stock, shares authorized (in shares)							2,500,000,000	2,500,000,000				2,500,000,000
Common stock, par value (in dollars per share) | $ / shares					$ 0.0001		$ 0.0001	$ 0.0001
Common stock, voting rights, votes per share | vote					1
Class A Common Stock | Employee stock purchase rights under the 2020 ESPP
Share-based Compensation Arrangement by Share-based Payment Award
Common stock reserved for future issuances (shares)												5,700,000
Class A Common Stock | 2020 Plan
Share-based Compensation Arrangement by Share-based Payment Award
Common stock reserved for future issuances (shares)												34,100,000
Maximum common shares authorized to be outstanding (shares)												78,800,000
Class A Common Stock | Samooha, Inc. | Restricted Common Stock
Share-based Compensation Arrangement by Share-based Payment Award
Nonvested (in shares)							400,000
Class A Common Stock | Samooha, Inc. | Outside of the Plans | Restricted Common Stock
Share-based Compensation Arrangement by Share-based Payment Award
Granted (in shares)	400,000
Vesting period (in years)	4 years
Fair value | $	$ 74,800
Requisite service period	4 years
Class A Common Stock | Streamlit, Inc.
Share-based Compensation Arrangement by Share-based Payment Award
Business acquisition, equity interest issued or issuable (in shares)			1,900,000
Class A Common Stock | Streamlit, Inc. | Outside of the Plans | Restricted Common Stock
Share-based Compensation Arrangement by Share-based Payment Award
Granted (in shares)			400,000
Vesting period (in years)			3 years
Fair value | $			$ 93,700
Requisite service period			3 years
Nonvested (in shares)							300,000	400,000
Class B Common Stock
Share-based Compensation Arrangement by Share-based Payment Award
Common stock, shares authorized (in shares)							185,461,000	185,461,000				355,000,000
Shares converted (in shares)				169,500,000	169,500,000
Common stock, par value (in dollars per share) | $ / shares					$ 0.0001		$ 0.0001	$ 0.0001
Common stock, voting rights, votes per share | vote						10