Net Income Per Share Attributable to Common Stockholders - Schedule of Computation of Basic and Diluted Net Income Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Apr. 30, 2023	Apr. 30, 2022
Numerator:
Net income	$ 15,444	$ 113,658
Net income attributable to common stockholders	$ 15,444	$ 113,640
Denominator:
Weighted-average shares used in computing net income per share attributable to common stockholders, basic (in shares)	295,409,207	299,147,105
Weighted-average shares used in computing net income per share attributable to common stockholders, diluted (in shares)	304,115,913	306,614,220
Net income per share attributable to common stockholders, basic (in dollars per share)	$ 0.05	$ 0.38
Net income per share attributable to common stockholders, diluted (in dollars per share)	$ 0.05	$ 0.37
Class A Common Stock
Numerator:
Net income	$ 13,004	$ 95,289
Less: undistributed earnings attributable to participating securities	0	0
Net income attributable to common stockholders	13,004	95,289
Reallocation of net income attributable to common stockholders	(135)	(1,498)
Net income attributable to common stockholders, diluted	$ 12,869	$ 93,791
Denominator:
Weighted-average shares used in computing net income per share attributable to common stockholders, basic (in shares)	248,731,065	250,840,017
Weighted-average shares used in computing net income per share attributable to common stockholders, diluted (in shares)	253,394,377	253,035,897
Net income per share attributable to common stockholders, basic (in dollars per share)	$ 0.05	$ 0.38
Net income per share attributable to common stockholders, diluted (in dollars per share)	$ 0.05	$ 0.37
Class B Common Stock
Numerator:
Net income	$ 2,440	$ 18,369
Less: undistributed earnings attributable to participating securities	0	(18)
Net income attributable to common stockholders	2,440	18,351
Reallocation of net income attributable to common stockholders	135	1,498
Net income attributable to common stockholders, diluted	$ 2,575	$ 19,849
Denominator:
Weighted-average shares used in computing net income per share attributable to common stockholders, basic (in shares)	46,678,142	48,307,088
Weighted-average shares used in computing net income per share attributable to common stockholders, diluted (in shares)	50,721,536	53,578,323
Net income per share attributable to common stockholders, basic (in dollars per share)	$ 0.05	$ 0.38
Net income per share attributable to common stockholders, diluted (in dollars per share)	$ 0.05	$ 0.37