Share-Based Payments (Schedule Of Unrecognized Compensation Cost And Weighted-Average Remaining Life) (Details) (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized Share-Based Payments Expense	$ 28,888
Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized Share-Based Payments Expense	1,205
Weighted-Average Remaining Life	2 years 3 months
Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized Share-Based Payments Expense	27,322
Weighted-Average Remaining Life	2 years 7 months 9 days
Content Arrangements [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized Share-Based Payments Expense	$ 361
Weighted-Average Remaining Life	0 years 3 months 6 days