|
Stockholders' Equity (Details Textual) (USD $)
|
3 Months Ended | 3 Months Ended | 0 Months Ended | 3 Months Ended | 0 Months Ended | 12 Months Ended | 0 Months Ended | 3 Months Ended | 0 Months Ended | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Mar. 31, 2014
|
Mar. 31, 2013
|
Dec. 31, 2013
|
Mar. 31, 2014
Common Stock [Member]
|
Jan. 18, 2013
Liberty Media [Member]
Series B Preferred Stock
|
Jan. 18, 2013
Liberty Media [Member]
Common Stock [Member]
|
Mar. 31, 2013
Liberty Media [Member]
Common Stock [Member]
|
Mar. 31, 2014
December 2012 Share Repurchase Program [Member]
Common Stock [Member]
|
Oct. 09, 2013
October 2013 Share Repurchase Program [Member]
Liberty Media [Member]
Common Stock [Member]
|
Dec. 31, 2013
October 2013 Share Repurchase Program [Member]
Liberty Media [Member]
Common Stock [Member]
|
Nov. 12, 2013
October 2013 Share Repurchase Program [Member]
Liberty Media [Member]
Common Stock [Member]
|
Jan. 23, 2014
Amended October 2013 Share Repurchase Program [Member]
Liberty Media [Member]
Common Stock [Member]
|
Mar. 31, 2014
Sirius XM Holdings Inc. [Member]
|
Mar. 31, 2014
Sirius XM Radio Inc. [Member]
|
Dec. 31, 2013
Sirius XM Radio Inc. [Member]
|
Mar. 31, 2014
Other Current Assets [Member]
|
Dec. 31, 2013
Other Current Assets [Member]
|
Mar. 31, 2014
Related Party Current Assets [Member]
|
Dec. 31, 2013
Related Party Current Assets [Member]
|
Apr. 25, 2014
Subsequent Event [Member]
|
Apr. 25, 2014
Subsequent Event [Member]
Amended October 2013 Share Repurchase Program [Member]
Liberty Media [Member]
Common Stock [Member]
|
|
| Additional Stockholder's Equity (Textual) [Abstract] | |||||||||||||||||||||
| Common stock, par value (in dollars per share) | $ 0.001 | $ 0.001 | $ 0.001 | $ 0.001 | |||||||||||||||||
| Common stock, shares authorized | 9,000,000,000 | 9,000,000,000 | 9,000,000,000 | 9,000,000,000 | |||||||||||||||||
| Common stock, shares issued | 6,073,791,343 | 6,096,220,526 | 1,000 | 1,000 | |||||||||||||||||
| Common stock, shares outstanding | 6,058,791,343 | 6,096,220,526 | 1,000 | 1,000 | |||||||||||||||||
| Common stock reserved for issuance | 557,981,000 | ||||||||||||||||||||
| Stock repurchase program, authorized amount | $ 4,000,000,000 | $ 500,000,000 | |||||||||||||||||||
| Stock repurchased and retired during period, value | 160,000,000 | 340,000,000 | |||||||||||||||||||
| Deferred repurchase amount | 240,000,000 | ||||||||||||||||||||
| Remaining amount authorized under the stock repurchase program | 2,108,958,000 | 1,687,640,000 | |||||||||||||||||||
| Share price (in dollars per share) | $ 3.66 | ||||||||||||||||||||
| Loss on change in value of derivatives | 27,023,000 | 0 | 27,023,000 | ||||||||||||||||||
| Common stock repurchased (in shares) | 39,500,000 | ||||||||||||||||||||
| Common stock repurchased | 128,682,000 | 128,682,000 | |||||||||||||||||||
| Treasury stock | (47,613,000) | 0 | |||||||||||||||||||
| Amortization of costs related to share-lending arrangement and other issuance costs | 3,346,000 | 3,209,000 | |||||||||||||||||||
| Unamortized, debt issuance costs | $ 9,355,000 | $ 12,701,000 | $ 9,150,000 | $ 12,423,000 | $ 205,000 | $ 278,000 | |||||||||||||||
| Preferred stock, par value (in dollars per share) | $ 0.001 | $ 0.001 | |||||||||||||||||||
| Undesignated preferred stock, shares authorized | 50,000,000 | 50,000,000 | 50,000,000 | 50,000,000 | |||||||||||||||||
| Preferred stock, shares issued | 0 | 0 | 0 | 0 | |||||||||||||||||
| Preferred stock, shares outstanding | 0 | 0 | 0 | 0 | |||||||||||||||||
| Conversion of preferred stock to common stock (in shares) | 6,250,100 | 1,293,509,076 | 1,293,509,076 | ||||||||||||||||||
| Warrants outstanding | 18,455,000 | 18,455,000 | |||||||||||||||||||
| Weighted average exercise price on outstanding warrants | 2.55 | 2.55 | |||||||||||||||||||