CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands		3 Months Ended
		Apr. 30, 2016	Apr. 30, 2015
Revenues
License		$ 100,992	$ 71,872
Maintenance and services		84,960	53,793
Total revenues		185,952	125,665
Cost of revenues
License	[1]	2,962	1,161
Maintenance and services	[1]	36,538	21,924
Total cost of revenues	[1]	39,500	23,085
Gross profit		146,452	102,580
Operating expenses
Research and development	[1]	67,371	44,698
Sales and marketing	[1]	145,151	101,989
General and administrative	[1]	32,073	26,872
Total operating expenses	[1]	244,595	173,559
Operating loss		(98,143)	(70,979)
Interest and other income (expense), net
Interest income (expense), net		(403)	360
Other income (expense), net		(1,125)	89
Total interest and other income (expense), net		(1,528)	449
Loss before income taxes		(99,671)	(70,530)
Income tax provision		1,225	656
Net loss		$ (100,896)	$ (71,186)
Net loss per share:
Basic and diluted (in dollars per share)		$ (0.77)	$ (0.57)
Weighted-average shares outstanding:
Basic and diluted (in shares)		131,494	124,548
Stock-based compensation		$ 91,370	$ 66,109

[1] Amounts include stock-based compensation expense, as follows: Cost of revenues, $7,555 thousand and $6,532 thousand ; Research and development, $29,206 thousand and $20,075 thousand ; Sales and marketing, $40,233 thousand and $29,610 thousand ; General and administrative, $14,376 thousand and $9,892 thousand, for the three months ended April 30, 2016 and 2015, respectively.