Condensed Consolidated Statements of Operations (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended				9 Months Ended
	Oct. 31, 2014		Oct. 31, 2013		Oct. 31, 2014		Oct. 31, 2013
Revenues:
Subscription and support	$ 1,288,513		$ 1,004,476		$ 3,668,406		$ 2,749,541
Professional services and other	95,142		71,558		260,572		176,220
Total revenues	1,383,655		1,076,034		3,928,978		2,925,761
Cost of revenues:
Subscription and support	238,746	[1],[2]	198,809	[1],[2]	666,611	[1],[2]	513,267	[1],[2]
Professional services and other	94,465	[1],[2]	69,378	[1],[2]	266,736	[1],[2]	181,631	[1],[2]
Total cost of revenues	333,211	[1],[2]	268,187	[1],[2]	933,347	[1],[2]	694,898	[1],[2]
Gross profit	1,050,444		807,847		2,995,631		2,230,863
Operating expenses:
Research and development	195,460	[1],[2]	170,690	[1],[2]	586,927	[1],[2]	450,708	[1],[2]
Marketing and sales	709,643	[1],[2]	581,229	[1],[2]	2,020,956	[1],[2]	1,528,340	[1],[2]
General and administrative	167,383	[1],[2]	153,859	[1],[2]	498,565	[1],[2]	434,143	[1],[2]
Total operating expenses	1,072,486	[1],[2]	905,778	[1],[2]	3,106,448	[1],[2]	2,413,191	[1],[2]
Loss from operations	(22,042)		(97,931)		(110,817)		(182,328)
Investment income	2,622		1,110		7,055		8,851
Interest expense	(17,682)		(22,929)		(56,355)		(54,468)
Gain on sales of land and building improvements	15,625		0		15,625		0
Other expense	(372)		(4,291)		(15,095)		(6,843)
Loss before benefit from (provision for) income taxes	(21,849)		(124,041)		(159,587)		(234,788)
Benefit from (provision for) income taxes	(17,075)		(393)		(37,336)		119,236
Net loss	$ (38,924)		$ (124,434)		$ (196,923)		$ (115,552)
Basic net loss per share (in dollars per share)	$ (0.06)		$ (0.21)		$ (0.32)		$ (0.19)
Diluted net loss per share (in dollars per share)	$ (0.06)		$ (0.21)		$ (0.32)		$ (0.19)
Shares used in computing basic net loss per share (in shares)	629,548		600,467		619,748		594,346
Shares used in computing diluted net loss per share (in shares)	629,548		600,467		619,748		594,346

[1] Amounts include amortization of purchased intangibles from business combinations, as follows: Three Months Ended October 31, Nine Months Ended October 31, 2014 2013 2014 2013Cost of revenues$20,351 $33,844 $70,294 $77,699Marketing and sales15,095 15,211 44,708 22,147

[2] Amounts include stock-based expenses, as follows: Three Months Ended October 31, Nine Months Ended October 31, 2014 2013 2014 2013Cost of revenues$14,118 $12,119 $38,905 $32,778Research and development26,868 27,935 87,264 78,396Marketing and sales72,892 73,296 210,510 189,231General and administrative25,582 28,186 76,284 66,336