Share-Based Payments (Schedule Of Unrecognized Compensation Cost And Weighted-Average Remaining Life) (Details) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized Share-Based Payments Expense	$ 24,747
Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized Share-Based Payments Expense	1,004
Weighted-Average Remaining Life	2 years 0 months
Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized Share-Based Payments Expense	23,586
Weighted-Average Remaining Life	2 years 5 months 0 days
Content Arrangements [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized Share-Based Payments Expense	$ 157
Weighted-Average Remaining Life	0 years 3 months 6 days