CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) shares in Thousands, $ in Thousands		3 Months Ended		9 Months Ended
		Oct. 31, 2023	Oct. 31, 2022	Oct. 31, 2023	Oct. 31, 2022
Revenues:
Total revenues		$ 616,505	$ 552,351	$ 1,733,055	$ 1,591,671
Cost of revenues:
Total cost of revenues	[1]	167,682	153,907	503,363	445,091
Gross profit		448,823	398,444	1,229,692	1,146,580
Operating expenses:
Research and development	[1]	161,278	130,257	465,466	377,740
Sales and marketing	[1]	96,773	93,910	282,269	259,642
General and administrative	[1]	62,283	52,873	187,887	159,030
Total operating expenses	[1]	320,334	277,040	935,622	796,412
Operating income		128,489	121,404	294,070	350,168
Other income, net		42,187	12,458	111,260	23,565
Income before income taxes		170,676	133,862	405,330	373,733
Income tax provision		35,518	25,405	27,023	74,560
Net income		$ 135,158	$ 108,457	$ 378,307	$ 299,173
Net income per share:
Basic (in usd per share)		$ 0.84	$ 0.70	$ 2.36	$ 1.93
Diluted (in usd per share)		$ 0.83	$ 0.67	$ 2.32	$ 1.84
Weighted-average shares used to compute net income per share:
Basic (in shares)		160,768	155,392	160,344	154,958
Diluted (in shares)		163,761	162,295	163,129	162,189
Other comprehensive income:
Net change in unrealized loss on available-for-sale investments		$ (2,637)	$ (17,499)	$ (6,100)	$ (30,722)
Net change in cumulative foreign currency translation loss		(518)	(808)	(309)	(2,962)
Comprehensive income		132,003	90,150	371,898	265,489
Subscription services
Revenues:
Total revenues		494,912	441,569	1,380,095	1,272,850
Cost of revenues:
Total cost of revenues	[1]	74,435	65,734	213,179	188,722
Professional services and other
Revenues:
Total revenues		121,593	110,782	352,960	318,821
Cost of revenues:
Total cost of revenues	[1]	$ 93,247	$ 88,173	$ 290,184	$ 256,369

[1] (1) Includes stock-based compensation as follows:Cost of revenues:Cost of subscription services$1,604 $1,636 $4,857 $4,606 Cost of professional services and other12,943 13,227 39,881 37,035 Research and development45,711 37,415 129,909 102,139 Sales and marketing23,460 23,576 67,084 64,500 General and administrative17,508 17,333 53,109 48,083 Total stock-based compensation$101,226 $93,187 $294,840 $256,363