Net Income Per Share - Schedule of Computation of Basic and Diluted Net Income Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 31, 2025	Jul. 31, 2024	Jul. 31, 2025	Jul. 31, 2024
Denominator:
Weighted-average shares used in computing net income per share, basic (in shares)	301,779,114	309,137,807	303,354,835	308,921,610
Weighted-average shares used in computing net income per share, diluted (in shares)	308,224,372	314,027,192	310,515,069	314,696,351
Net income per share, basic (in dollars per share)	$ 1.19	$ 0.71	$ 2.02	$ 1.41
Net income per share, diluted (in dollars per share)	$ 1.16	$ 0.70	$ 1.97	$ 1.38
Class A
Numerator:
Net income, basic	$ 316,729	$ 186,687	$ 534,869	$ 370,754
Reallocation of net income	(1,123)	(1,425)	(1,740)	(2,718)
Net income, diluted	$ 315,606	$ 185,262	$ 533,129	$ 368,036
Denominator:
Weighted-average shares used in computing net income per share, basic (in shares)	266,548,290	263,506,853	264,605,839	263,100,802
Weighted-average shares used in computing net income per share, diluted (in shares)	271,276,534	265,631,026	269,970,487	266,054,570
Net income per share, basic (in dollars per share)	$ 1.19	$ 0.71	$ 2.02	$ 1.41
Net income per share, diluted (in dollars per share)	$ 1.16	$ 0.70	$ 1.97	$ 1.38
Class B
Numerator:
Net income, basic	$ 41,863	$ 32,328	$ 78,326	$ 64,569
Reallocation of net income	1,123	1,425	1,740	2,718
Net income, diluted	$ 42,986	$ 33,753	$ 80,066	$ 67,287
Denominator:
Weighted-average shares used in computing net income per share, basic (in shares)	35,230,824	45,630,954	38,748,996	45,820,808
Weighted-average shares used in computing net income per share, diluted (in shares)	36,947,838	48,396,166	40,544,582	48,641,781
Net income per share, basic (in dollars per share)	$ 1.19	$ 0.71	$ 2.02	$ 1.41
Net income per share, diluted (in dollars per share)	$ 1.16	$ 0.70	$ 1.97	$ 1.38