Segment Information (Revenues By Product Grouping) (Details) - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2016	Mar. 31, 2015
Segment Reporting Information [Line Items]
Net revenues		$ 825,678	$ 760,802
Operating Segments [Member] | Enterprise and Service Provider Division [Member]
Segment Reporting Information [Line Items]
Net revenues		658,773	613,125
Operating Segments [Member] | Mobility Apps [Member]
Segment Reporting Information [Line Items]
Net revenues		166,905	147,677
Operating Segments [Member] | Workspace Services revenues [Member] | Enterprise and Service Provider Division [Member]
Segment Reporting Information [Line Items]
Net revenues	[1]	400,916	389,363
Operating Segments [Member] | Delivery Networking revenues [Member] | Enterprise and Service Provider Division [Member]
Segment Reporting Information [Line Items]
Net revenues	[2]	195,470	162,969
Operating Segments [Member] | Cloud Services revenues [Member] | Enterprise and Service Provider Division [Member]
Segment Reporting Information [Line Items]
Net revenues	[3]	29,732	21,777
Operating Segments [Member] | Professional Services [Member] | Enterprise and Service Provider Division [Member]
Segment Reporting Information [Line Items]
Net revenues	[4]	32,607	36,860
Other Income [Member] | Operating Segments [Member] | Enterprise and Service Provider Division [Member]
Segment Reporting Information [Line Items]
Net revenues		$ 48	$ 2,156

[1] Workspace Services revenues are primarily comprised of sales from the Company’s windows app delivery products, which include XenDesktop and XenApp, and the Company's mobile app delivery products, which include XenMobile and related license updates and maintenance and support.

[2] Delivery Networking revenues primarily include NetScaler, ByteMobile Smart Capacity and CloudBridge products and related license updates and maintenance and support.

[3] Cloud Services revenues primarily include ShareFile, Podio and Citrix Workspace Cloud products.

[4] Professional services revenues are primarily comprised of revenues from consulting services and product training and certification services.