|
Investment Securities (Details 5) (USD $)
|
12 Months Ended | ||
|---|---|---|---|
|
Dec. 31, 2011
|
Dec. 31, 2013
|
Dec. 31, 2012
|
|
| Fair value of marketable securities | |||
| Debt security | $ 885,100,000 | ||
| Total | 994,498,000 | 823,480,000 | |
| Gains on investments accounted for at fair value, net | 15,900,000 | ||
|
Corporate Bonds
|
|||
| Fair value of marketable securities | |||
| Debt security | 833,791,000 | 654,096,000 | |
|
VRDNs
|
|||
| Fair value of marketable securities | |||
| Debt security | 34,705,000 | 66,145,000 | |
|
Other (including restricted)
|
|||
| Fair value of marketable securities | |||
| Debt security | 92,389,000 | 46,951,000 | |
|
Level 3
|
|||
| Fair value of marketable securities | |||
| Fair value of investments | 0 | ||
|
Fair value measurements on recurring basis | Total
|
|||
| Fair value of marketable securities | |||
| Cash equivalents (including restricted) | 548,714,000 | 533,943,000 | |
| Total | 994,498,000 | 823,480,000 | |
|
Fair value measurements on recurring basis | Total | Corporate Bonds
|
|||
| Fair value of marketable securities | |||
| Debt security | 833,791,000 | 654,096,000 | |
|
Fair value measurements on recurring basis | Total | VRDNs
|
|||
| Fair value of marketable securities | |||
| Debt security | 34,705,000 | 66,145,000 | |
|
Fair value measurements on recurring basis | Total | Other (including restricted)
|
|||
| Fair value of marketable securities | |||
| Debt security | 92,389,000 | 46,951,000 | |
|
Fair value measurements on recurring basis | Total | Equity securities - Strategic
|
|||
| Fair value of marketable securities | |||
| Equity security | 33,613,000 | 56,288,000 | |
|
Fair value measurements on recurring basis | Level 1
|
|||
| Fair value of marketable securities | |||
| Cash equivalents (including restricted) | 49,338,000 | 23,621,000 | |
| Total | 33,613,000 | 56,288,000 | |
|
Fair value measurements on recurring basis | Level 1 | Equity securities - Strategic
|
|||
| Fair value of marketable securities | |||
| Equity security | 33,613,000 | 56,288,000 | |
|
Fair value measurements on recurring basis | Level 2
|
|||
| Fair value of marketable securities | |||
| Cash equivalents (including restricted) | 499,376,000 | 510,322,000 | |
| Total | 960,885,000 | 767,192,000 | |
|
Fair value measurements on recurring basis | Level 2 | Corporate Bonds
|
|||
| Fair value of marketable securities | |||
| Debt security | 833,791,000 | 654,096,000 | |
|
Fair value measurements on recurring basis | Level 2 | VRDNs
|
|||
| Fair value of marketable securities | |||
| Debt security | 34,705,000 | 66,145,000 | |
|
Fair value measurements on recurring basis | Level 2 | Other (including restricted)
|
|||
| Fair value of marketable securities | |||
| Debt security | $ 92,389,000 | $ 46,951,000 |