Consolidated Statements of Income (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2011		Dec. 31, 2010		Dec. 31, 2009
Revenues:
Product licenses	$ 744,513		$ 619,452		$ 538,975
License updates	741,834		682,246		604,968
Software as a Service	430,213		360,617		308,177
Technical services	289,832		212,347		161,968
Total net revenues	2,206,392		1,874,662		1,614,088
Cost of net revenues:
Cost of product license revenues	74,393		66,682		52,160
Cost of services revenues	153,063		106,234		87,233
Amortization of product related intangible assets	54,741		50,504		47,917
Total cost of net revenues	282,197		223,420		187,310
Gross margin	1,924,195		1,651,242		1,426,778
Operating expenses:
Research and development	343,727		326,647		281,980
Sales, marketing and services	839,818		729,754		679,053
General and administrative	307,270		258,875		239,623
Amortization of other intangibles	16,390		14,279		20,972
Restructuring	24	[1]	971	[1]	26,473	[1]
Total operating expenses	1,507,229		1,330,526		1,248,101
Income from operations	416,966		320,716		178,677
Interest income	13,819		14,577		14,683
Other (expense) income, net	(288)		(1,473)		532
Income before income taxes	430,497		333,820		193,892
Income taxes	74,867		57,379		2,875
Consolidated net income	355,630		276,441		191,017
Less: Net loss attributable to non-controlling interest	692		624		0
Net income attributable to Citrix Systems, Inc.	$ 356,322		$ 277,065		$ 191,017
Net income per share attributable to Citrix Systems, Inc. stockholders:
Net income per share attributable to Citrix Systems, Inc. stockholders - basic	$ 1.90		$ 1.49		$ 1.05
Net income per share attributable to Citrix Systems, Inc. stockholders - diluted	$ 1.87		$ 1.46		$ 1.03
Weighted average shares outstanding:
Basic (in shares)	187,315		185,959		181,805
Diluted (in shares)	190,641		190,335		184,985

[1] Represents expenses presented to management on a consolidated basis only and not allocated to the operating segments.