Business Combination (Schedule Of NCR Purchase Price Allocation) (Details) (USD $) In Thousands, unless otherwise specified			6 Months Ended	9 Months Ended
	Sep. 30, 2013	Dec. 31, 2012	Jun. 30, 2013 Ncr Asset Aquistion [Member]	Sep. 30, 2013 Ncr Asset Aquistion [Member]	Jun. 22, 2012 Ncr Asset Aquistion [Member]	Dec. 31, 2012 Preliminary [Member]	Jun. 22, 2012 Preliminary [Member] Ncr Asset Aquistion [Member]
Business Acquisition, Purchase Price Allocation [Abstract]
Content library					$ 4,330		$ 4,330
Prepaid expenses					240		240
Deferred income taxes					1,500		1,500
Property and equipment					23,896		9,130
Purchase accounting adjustments, Property and equipment				14,766
Intangible assets					46,960		46,960
Goodwill	559,307	295,094			27,344	309,860	42,110
Total assets acquired					104,270		104,270
Goodwill, Purchase Accounting Adjustments			(14,766)	(14,766)
Accrued liabilities					(4,270)		(4,270)
Total consideration paid in cash					$ 100,000		$ 100,000