Investments in Affiliates (Equity in Net Income (Losses) of Affiliates) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Schedule of Equity Method Investments [Line Items]
Equity in net income (loss) of affiliates	$ (38,475)	$ (19,283)	$ (90,233)	$ 42,911
Telesat Holdings Inc [Member]
Schedule of Equity Method Investments [Line Items]
Equity in net income (loss) of affiliates	(27,913)	(17,240)	(74,329)	48,226
XTAR, LLC [Member]
Schedule of Equity Method Investments [Line Items]
Equity in net income (loss) of affiliates	$ (10,562)	$ (2,043)	$ (15,904)	$ (5,315)