Earnings Per Share (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Schedule of Dilutive Impact of Equity Method Investee Stock Options
(Loss) income from continuing operations - basic	$ (9,718)	$ 14,841	$ (10,608)	$ 58,031
Less: Adjustment for dilutive effect of Telesat stock options		(998)		(2,967)
(Loss) income from continuing operations - diluted	$ (9,718)	$ 13,843	$ (10,608)	$ 55,064