Net Income per Share Attributable to Common Stockholders - Summary of Computation of Basic and Diluted Net Income Per Share Attributable to Common Stockholders (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 31, 2024	Jul. 31, 2023	Jul. 31, 2024	Jul. 31, 2023
Numerator:
Net income	$ 20,496	$ 10,791	$ 37,718	$ 19,141
Accretion and dividend on series A convertible preferred stock	(4,310)	(4,307)	(8,550)	(8,531)
Undistributed earnings attributable to preferred stockholders	(1,845)	(740)	(3,313)	(1,209)
Net income attributable to common stockholders	14,341	5,744	25,855	9,401
Net income attributable to common stockholders, diluted	$ 14,341	$ 5,744	$ 25,855	$ 9,401
Denominator:
Weighted-average number of shares used to compute net income per share attributable to common stockholders, basic	144,070	144,248	144,678	144,490
Dilutive effect of awards issued under employee equity plans	2,098	4,366	2,395	4,307
Dilutive effect of shares related to the convertible senior notes	357	1,393	561	1,421
Weighted-average number of shares used to compute net income per share attributable to common stockholders, diluted	146,525	150,007	147,634	150,218
Net income per share attributable to common stockholders, basic	$ 0.1	$ 0.04	$ 0.18	$ 0.07
Net income per share attributable to common stockholders, diluted	$ 0.1	$ 0.04	$ 0.18	$ 0.06