v2.3.0.15
Marketable Investment Securities, Restricted Cash and Other Investment Securities (Details 3) (USD $)
In Thousands
Sep. 30, 2011
Dec. 31, 2010
Fair value of marketable investment securities in a loss position  
Total$ 320,499$ 119,135
Less than Six Months316,58026,358
Six to Nine Months 17,566
Nine Months or More3,91975,211
Unrealized loss on marketable investment securities in a loss position  
Less than Six Months(2,962)(44)
Six to Nine Months (71)
Nine Months or More(11)(118)
Debt securities
  
Fair value of marketable investment securities in a loss position  
Total320,499119,135
Less than Six Months316,58026,358
Six to Nine Months 17,566
Nine Months or More3,91975,211
Unrealized loss on marketable investment securities in a loss position  
Less than Six Months(2,962)(44)
Six to Nine Months (71)
Nine Months or More$ (11)$ (118)