Net Income Per Share - Summary of Potential Shares of Common Stock Excluded from Computation of Diluted Net Income Per Share Attributable to Common Stockholders (Details) - shares	3 Months Ended		6 Months Ended
	Jul. 31, 2024	Jul. 31, 2023	Jul. 31, 2024	Jul. 31, 2023
Class A
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Antidilutive securities excluded from computation of earnings per share, amount (in shares)	17,384,197	11,670,542	14,434,688	12,408,476
Class A | Unvested RSUs
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Antidilutive securities excluded from computation of earnings per share, amount (in shares)	14,850,761	9,214,305	12,596,651	10,083,918
Class A | Purchase rights committed under the ESPP
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Antidilutive securities excluded from computation of earnings per share, amount (in shares)	2,436,546	2,347,590	1,738,415	2,208,209
Class A | Outstanding stock options
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Antidilutive securities excluded from computation of earnings per share, amount (in shares)	96,890	108,647	99,622	116,349
Class A | Shares Reserved for Transfer to Nonprofit Organizations
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Antidilutive securities excluded from computation of earnings per share, amount (in shares)			405,156	405,156
Class B
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Antidilutive securities excluded from computation of earnings per share, amount (in shares)	0	0	0	0
Class B | Unvested RSUs
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Antidilutive securities excluded from computation of earnings per share, amount (in shares)	0	0	0	0
Class B | Purchase rights committed under the ESPP
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Antidilutive securities excluded from computation of earnings per share, amount (in shares)	0	0	0	0
Class B | Outstanding stock options
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Antidilutive securities excluded from computation of earnings per share, amount (in shares)	0	0	0	0