Marketable Investment Securities, Restricted Cash And Other Investment Securities (Details 3) (USD $)	Jun. 30, 2011	Dec. 31, 2010
Components of our available-for-sale investments
Debt security	$ 2,737,692,000	$ 2,299,705,000
ARS fair value election	65,104,000	62,691,000
Total marketable investment securities	2,926,247,000	2,481,022,000
Total marketable investment securities	1,274,374,000	102,591,000
Unrealized Gains (Losses) on Marketable Investment Securities
Unrealized Gains	122,520,000	92,797,000
Unrealized Losses	(16,481,000)	(22,367,000)
Unrealized Gains Losses, Net	106,039,000	70,430,000
Investment in DBSD North America	1,274,374,000	102,591,000
Contractual maturities of restricted and non-restricted marketable investment securities
Debt security with contractual maturities of one year or less	2,286,000,000
Debt securities with contractual maturities greater than one year	348,000,000
Accumulated net unrealized gains (losses)
Accumulated net unrealized gains, net of tax, in accumulated other comprehensive income (loss)	185,000,000	93,000,000
Marketable Securities
Components of our available-for-sale investments
Total marketable investment securities (including DBSD North America)	3,765,256,000	2,536,845,000
Unrealized Gains (Losses) on Marketable Investment Securities
Unrealized Gains	201,269,000	115,723,000
Unrealized Losses	(16,481,000)	(22,367,000)
Unrealized Gains Losses, Net	184,788,000	93,356,000
Current marketable investment securities - VRDNs
Components of our available-for-sale investments
Debt security	1,411,188,000	1,334,081,000
ARS and MBS, noncurrent
Components of our available-for-sale investments
Debt security	56,408,000	56,430,000
ARS fair value election	65,104,000	62,691,000
Unrealized Gains (Losses) on Marketable Investment Securities
Unrealized Gains	2,292,000	902,000
Unrealized Losses	(11,456,000)	(12,262,000)
Unrealized Gains Losses, Net	(9,164,000)	(11,360,000)
Other (including restricted)
Components of our available-for-sale investments
Debt security	1,100,942,000	832,798,000
Unrealized Gains (Losses) on Marketable Investment Securities
Unrealized Gains	9,400,000	9,330,000
Unrealized Losses	(2,071,000)	(1,676,000)
Unrealized Gains Losses, Net	7,329,000	7,654,000
Equity securities
Components of our available-for-sale investments
Equity security	292,605,000	195,022,000
Unrealized Gains (Losses) on Marketable Investment Securities
Unrealized Gains	110,828,000	82,565,000
Unrealized Losses	(2,954,000)	(8,429,000)
Unrealized Gains Losses, Net	107,874,000	74,136,000
DBSD North America (ICO)
Components of our available-for-sale investments
Total marketable investment securities	839,009,000	55,823,000
Unrealized Gains (Losses) on Marketable Investment Securities
Unrealized Gains	78,749,000	22,926,000
Unrealized Gains Losses, Net	78,749,000	22,926,000
Investment in DBSD North America	839,009,000	55,823,000
DBSD North America (ICO) \| 7.5% Convertible Senior Secured Notes due 2009
Components of our available-for-sale investments
Total marketable investment securities	112,000,000	56,000,000
Unrealized Gains (Losses) on Marketable Investment Securities
Investment in DBSD North America	112,000,000	56,000,000
7.5% Convertible Senior Secured Notes due 2009
Components of our available-for-sale investments
Total marketable investment securities	839,000,000
Unrealized Gains (Losses) on Marketable Investment Securities
Investment in DBSD North America	$ 839,000,000

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