Commitments And Contingencies (Minimum Payments Required Under Purchase Obligations) (Details) $ in Thousands	Dec. 31, 2016 USD ($)
Purchase Obligations And Contractual Agreements [Line Items]
2017	$ 145,228
2018	111,828
2019	107,182
2020	106,563
2021	106,563
Thereafter	3,296,016
Purchase Obligation	3,873,380
Purchase Obligations [Member]
Purchase Obligations And Contractual Agreements [Line Items]
2017	30,946
2018	5,265
2019	619
2020	0
2021	0
Thereafter	0
Purchase Obligation	36,830
.TV Agreement [Member]
Purchase Obligations And Contractual Agreements [Line Items]
2017	5,000
2018	5,000
2019	5,000
2020	5,000
2021	5,000
Thereafter	0
Purchase Obligation	25,000
Convertible Debt [Member]
Purchase Obligations And Contractual Agreements [Line Items]
2017	48,344
2018	40,625
2019	40,625
2020	40,625
2021	40,625
Thereafter	1,884,766
Purchase Obligation	2,095,610
Senior Notes [Member]
Purchase Obligations And Contractual Agreements [Line Items]
2017	60,938
2018	60,938
2019	60,938
2020	60,938
2021	60,938
Thereafter	1,411,250
Purchase Obligation	$ 1,715,940