v2.3.0.15
Marketable Investment Securities, Restricted Cash and Other Investment Securities (Details 4) (USD $)
In Thousands
Sep. 30, 2011
Dec. 31, 2010
Fair value of marketable securities  
Debt security$ 795,669$ 989,086
Debt and equity securities140,272613,125
Fair value measurements on recurring basis | Total
  
Fair value of marketable securities  
Marketable debt and equity securities936,1051,603,548
Fair value measurements on recurring basis | Total | Marketable and other Investment securities - noncurrent
  
Fair value of marketable securities  
Debt and equity securities140,272613,125
Fair value measurements on recurring basis | Level 1
  
Fair value of marketable securities  
Marketable debt and equity securities174,757223,064
Fair value measurements on recurring basis | Level 1 | Marketable and other Investment securities - noncurrent
  
Fair value of marketable securities  
Debt and equity securities4264,170
Fair value measurements on recurring basis | Level 2
  
Fair value of marketable securities  
Marketable debt and equity securities621,502771,529
Fair value measurements on recurring basis | Level 3
  
Fair value of marketable securities  
Marketable debt and equity securities139,846608,955
Fair value measurements on recurring basis | Level 3 | Marketable and other Investment securities - noncurrent
  
Fair value of marketable securities  
Debt and equity securities139,846608,955
Current marketable investment securities - VRDNs | Fair value measurements on recurring basis | Total
  
Fair value of marketable securities  
Debt security178,785395,715
Current marketable investment securities - VRDNs | Fair value measurements on recurring basis | Level 2
  
Fair value of marketable securities  
Debt security178,785395,715
Other (including restricted) | Fair value measurements on recurring basis | Total
  
Fair value of marketable securities  
Debt Security442,717375,814
Other (including restricted) | Fair value measurements on recurring basis | Level 2
  
Fair value of marketable securities  
Debt Security442,717375,814
Equity securities | Fair value measurements on recurring basis | Total
  
Fair value of marketable securities  
Equity security174,331218,894
Equity securities | Fair value measurements on recurring basis | Level 1
  
Fair value of marketable securities  
Equity security174,331218,894
Current marketable investment securities - VRDNs
  
Fair value of marketable securities  
Debt security178,785395,715
Other (including restricted)
  
Fair value of marketable securities  
Debt Security442,717375,814
Equity securities
  
Fair value of marketable securities  
Equity security$ 174,331$ 218,894