Commitments And Contingencies (Schedule Of Patent Lawsuits) (Details)	6 Months Ended
	Dec. 31, 2012
Pragmatus VOD LLC [Member]
Asserting Party	Pragmatus VOD LLC
Jurisdiction	U.S. District Court of Delaware
Patents at Issue	U.S. Patents Nos. 5,581,479 and 5,636,139
Olympic Developments AG LLC [Member]
Asserting Party	Olympic Developments AG, LLC
Jurisdiction	U.S. District Court Central District of California
Patents at Issue	U.S. Patents Nos. 5,475,585 and 6,246,400
InterAd Technologies [Member]
Asserting Party	InterAd Technologies
Jurisdiction	U.S. District Court of Delaware
Patents at Issue	U.S. Patent No. 5,438,353
LVL Patent Group [Member]
Asserting Party	LVL Patent Group
Jurisdiction	U.S. District Court of Delaware
Patents at Issue	U.S Patent No. 6,044,382
Sprint Communications Company LP [Member]
Asserting Party	Sprint Communications Company, L.P.
Jurisdiction	U.S. District Court Eastern District of Pennsylvania
Patents at Issue	U.S. Patent Nos. 6,754,907 and 6,757,907