Goodwill And Intangible Assets, Net (Changes In Carrying Amount Of Goodwill) (Details) (USD $) In Thousands	9 Months Ended
	Sep. 30, 2011
Balance as of December 31, 2010	$ 706,224
Acquisitions	40,495
Adjustments	6,373	[1]
Balance as of September 30, 2011	753,092
Licenses [Member]
Balance as of December 31, 2010	490,095
Acquisitions	20,420
Adjustments	3,486	[1]
Balance as of September 30, 2011	514,001
Maintenance Services [Member]
Balance as of December 31, 2010	211,806
Acquisitions	18,628
Adjustments	2,346	[1]
Balance as of September 30, 2011	232,780
Professional Services [Member]
Balance as of December 31, 2010	4,323
Acquisitions	1,447
Adjustments	541	[1]
Balance as of September 30, 2011	$ 6,311

[1] Primarily from finalization of purchase price allocations for Surgient (refer to Note 3- Acquisitions for details of the adjustment).