CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands		3 Months Ended		9 Months Ended
		Oct. 31, 2020	Oct. 31, 2019	Oct. 31, 2020	Oct. 31, 2019
Revenues
Total revenues		$ 558,572	$ 626,336	$ 1,484,307	$ 1,567,744
Cost of revenues
Total cost of revenues	[1]	136,780	107,819	397,449	301,950
Gross profit		421,792	518,517	1,086,858	1,265,794
Operating expenses
Research and development	[1]	190,222	158,887	579,643	422,287
Sales and marketing	[1]	323,146	319,023	966,057	896,757
General and administrative	[1]	73,941	88,092	234,746	226,118
Total operating expenses	[1]	587,309	566,002	1,780,446	1,545,162
Operating loss		(165,517)	(47,485)	(693,588)	(279,368)
Interest and other income (expense), net
Interest income		2,382	12,612	12,438	45,373
Interest expense		(33,972)	(24,406)	(88,557)	(71,527)
Other income (expense), net		(710)	(215)	4,533	(1,408)
Total interest and other income (expense), net		(32,300)	(12,009)	(71,586)	(27,562)
Loss before income taxes		(197,817)	(59,494)	(765,174)	(306,930)
Income tax provision (benefit)		3,714	(1,855)	3,258	7,010
Net loss		$ (201,531)	$ (57,639)	$ (768,432)	$ (313,940)
Net loss per share:
Basic and diluted (in dollars per share)		$ (1.26)	$ (0.38)	$ (4.83)	$ (2.08)
Weighted-average shares outstanding:
Basic and diluted (in shares)		160,515	152,404	158,998	150,659
License
Revenues
Total revenues		$ 240,225	$ 373,684	$ 565,424	$ 855,825
Cost of revenues
Total cost of revenues	[1]	5,009	5,796	16,549	17,414
Cloud services
Revenues
Total revenues		144,714	80,439	382,736	212,946
Cost of revenues
Total cost of revenues	[1]	63,354	41,045	176,572	108,525
Maintenance and services
Revenues
Total revenues		173,633	172,213	536,147	498,973
Cost of revenues
Total cost of revenues	[1]	$ 68,417	$ 60,978	$ 204,328	$ 176,011

[1] Amounts include stock-based compensation expense, as follows:   Cost of revenues$13,715 $10,426 $40,903 $31,710 Research and development63,180 45,003 198,033 126,722 Sales and marketing43,711 50,743 150,932 150,018 General and administrative18,184 26,680 62,613 70,478