CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) shares in Thousands, $ in Thousands		3 Months Ended		6 Months Ended
		Jul. 31, 2023	Jul. 31, 2022	Jul. 31, 2023	Jul. 31, 2022
Revenues:
Total revenues		$ 590,225	$ 534,218	$ 1,116,550	$ 1,039,320
Cost of revenues:
Total cost of revenues	[1]	169,018	151,669	335,681	291,184
Gross profit		421,207	382,549	780,869	748,136
Operating expenses:
Research and development	[1]	157,228	134,008	304,188	247,483
Sales and marketing	[1]	96,995	89,617	185,498	165,732
General and administrative	[1]	62,935	57,832	125,604	106,157
Total operating expenses	[1]	317,158	281,457	615,290	519,372
Operating income		104,049	101,092	165,579	228,764
Other income, net		38,826	8,398	69,074	11,107
Income before income taxes		142,875	109,490	234,653	239,871
Income tax provision (benefit)		31,247	18,889	(8,496)	49,155
Net income		$ 111,628	$ 90,601	$ 243,149	$ 190,716
Net income per share:
Basic (in usd per share)		$ 0.70	$ 0.58	$ 1.52	$ 1.23
Diluted (in usd per share)		$ 0.68	$ 0.56	$ 1.49	$ 1.17
Weighted-average shares used to compute net income per share:
Basic (in shares)		160,396	154,951	160,129	154,736
Diluted (in shares)		163,284	162,132	162,989	162,499
Other comprehensive income:
Net change in unrealized loss on available-for-sale investments		$ (8,891)	$ (2,224)	$ (3,463)	$ (13,223)
Net change in cumulative foreign currency translation gain (loss)		267	(900)	209	(2,154)
Comprehensive income		103,004	87,477	239,895	175,339
Subscription services
Revenues:
Total revenues		470,637	428,649	885,183	831,281
Cost of revenues:
Total cost of revenues	[1]	71,169	64,035	138,744	122,988
Professional services and other
Revenues:
Total revenues		119,588	105,569	231,367	208,039
Cost of revenues:
Total cost of revenues	[1]	$ 97,849	$ 87,634	$ 196,937	$ 168,196

[1] (1) Includes stock-based compensation as follows:Cost of revenues:Cost of subscription services$1,748 $1,693 $3,253 $2,970 Cost of professional services and other14,216 13,818 26,938 23,808 Research and development45,292 38,901 84,198 64,724 Sales and marketing23,489 24,031 43,624 40,924 General and administrative18,150 17,599 35,601 30,750 Total stock-based compensation$102,895 $96,042 $193,614 $163,176