Segment Information (Revenues By Product Grouping) (Details) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Segment Reporting Information [Line Items]
Net revenues		$ 693,227	$ 673,987	$ 1,355,904	$ 1,332,760
Operating Segments [Member]
Segment Reporting Information [Line Items]
Net revenues		693,227	673,987	1,355,904	1,332,760
Operating Segments [Member] | Workspace Services revenues [Member]
Segment Reporting Information [Line Items]
Net revenues	[1]	420,908	410,426	820,412	809,940
Operating Segments [Member] | Networking revenues [Member]
Segment Reporting Information [Line Items]
Net revenues	[2]	196,876	194,898	390,296	390,368
Operating Segments [Member] | Data revenues [Member]
Segment Reporting Information [Line Items]
Net revenues	[3]	43,614	33,748	83,649	64,882
Operating Segments [Member] | Professional Services [Member]
Segment Reporting Information [Line Items]
Net revenues	[4]	$ 31,829	$ 34,915	$ 61,547	$ 67,570

[1] Workspace Services revenues are primarily comprised of sales from the Company’s application virtualization products, which include XenDesktop and XenApp, and the Company's enterprise mobility management products, which include XenMobile and related license updates and maintenance and support.

[2] Networking revenues primarily include NetScaler ADC and NetScaler SD-WAN, and related license updates and maintenance and support.

[3] Data revenues primarily include ShareFile, Podio and Citrix Cloud.

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