CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Oct. 31, 2015	Oct. 31, 2014	Oct. 31, 2015	Oct. 31, 2014
Net revenue:
License and other	$ 280.9	$ 320.5	$ 898.1	$ 987.1
Subscription	318.9	297.5	957.7	860.5
Total net revenue	599.8	618.0	1,855.8	1,847.6
Cost of revenue:
Cost of license and other revenue	53.0	51.9	159.1	154.6
Cost of subscription revenue	38.0	34.1	116.7	98.0
Total cost of revenue	91.0	86.0	275.8	252.6
Gross profit	508.8	532.0	1,580.0	1,595.0
Operating expenses:
Marketing and sales	243.4	245.1	738.1	708.1
Research and development	197.9	183.9	585.5	533.7
General and administrative	74.2	78.9	220.2	212.9
Amortization of purchased intangibles	8.1	9.5	25.2	30.5
Restructuring charges, net	0.0	0.0	0.0	3.1
Total operating expenses	523.6	517.4	1,569.0	1,488.3
(Loss) income from operations	(14.8)	14.6	11.0	106.7
Interest and other expense, net	(7.7)	(3.0)	(10.8)	(16.6)
(Loss) income before income taxes	(22.5)	11.6	0.2	90.1
Provision for income taxes	(21.3)	(0.9)	(293.5)	(19.8)
Net (loss) income	$ (43.8)	$ 10.7	$ (293.3)	$ 70.3
Basic net (loss) income per share (in usd per share)	$ (0.19)	$ 0.05	$ (1.29)	$ 0.31
Diluted net (loss) income per share (in usd per share)	$ (0.19)	$ 0.05	$ (1.29)	$ 0.30
Weighted average shares used in computing basic net (loss) income per share (shares)	225.3	226.9	226.5	227.1
Weighted average shares used in computing diluted net (loss) income per share (shares)	225.3	231.5	226.5	231.9