Goodwill And Other Intangible Assets (Schedule Of Change In Goodwill) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2012
Goodwill, beginning balance	$ 1,239,120
Additions	25,920
Other	1,368
Goodwill, ending balance	1,266,408
Enterprise Division [Member]
Goodwill, beginning balance	956,504
Additions	25,920	[1]
Other	(49,971)	[2]
Goodwill, ending balance	932,453
Online Services Division [Member]
Goodwill, beginning balance	282,616
Additions	0
Other	51,339	[2]
Goodwill, ending balance	$ 333,955

[1] Amount primarily relates to acquisitions. See Note 4 for more information regarding the Company’s acquisitions.

[2] Amount primarily relates to reclassification of goodwill between segments. In the first quarter of 2012, the Company moved the business acquired in its recent acquisition of ShareFile from its Enterprise division to its Online Services division. See Note 4 for more information regarding the Company's acquisitions and Note 9 for more information regarding the Company's segments.