Investments in Affiliates (Equity in Net Income (Losses) of Affiliates) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Schedule of Equity Method Investments [Line Items]
Equity in net income (loss) of affiliates	$ 43,357	$ 25,087	$ 89,851	$ (51,758)
Telesat Holdings Inc [Member]
Schedule of Equity Method Investments [Line Items]
Equity in net income (loss) of affiliates	$ 43,357	27,913	$ 89,851	(46,416)
XTAR, LLC [Member]
Schedule of Equity Method Investments [Line Items]
Equity in net income (loss) of affiliates		$ (2,826)		$ (5,342)