|
Stockholders' Equity (Details Textual) (USD $)
|
3 Months Ended | 9 Months Ended | 9 Months Ended | 9 Months Ended | 0 Months Ended | 1 Months Ended | 0 Months Ended | 1 Months Ended | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Sep. 30, 2013
|
Sep. 30, 2012
|
Sep. 30, 2013
|
Sep. 30, 2012
|
Dec. 31, 2012
|
Sep. 30, 2013
Series B Preferred Stock [Member]
|
Dec. 31, 2012
Series B Preferred Stock [Member]
|
Sep. 30, 2013
Common Stock [Member]
|
Jan. 18, 2013
Liberty Media [Member]
Series B Preferred Stock [Member]
|
Sep. 30, 2012
Liberty Media [Member]
Series B Preferred Stock [Member]
|
Mar. 31, 2009
Liberty Media [Member]
Series B Preferred Stock [Member]
|
Jan. 18, 2013
Liberty Media [Member]
Common Stock [Member]
|
Jan. 31, 2013
Liberty Media [Member]
Common Stock [Member]
|
Sep. 30, 2012
Liberty Media [Member]
Common Stock [Member]
|
Dec. 31, 2012
December 2012 Share Repurchase Program [Member]
Common Stock [Member]
|
|
| Additional Stockholder's Equity (Textual) [Abstract] | |||||||||||||||
| Common stock, par value (in dollars per share) | $ 0.001 | $ 0.001 | $ 0.001 | ||||||||||||
| Common stock, shares authorized | 9,000,000,000 | 9,000,000,000 | 9,000,000,000 | ||||||||||||
| Common stock, shares issued | 6,134,596,655 | 6,134,596,655 | 5,262,440,085 | ||||||||||||
| Common stock, shares outstanding | 6,134,596,655 | 6,134,596,655 | 5,262,440,085 | ||||||||||||
| Common stock reserved for issuance | 574,620,000 | 574,620,000 | |||||||||||||
| Stock repurchase program, authorized amount | $ 2,000,000,000 | ||||||||||||||
| Common stock repurchased (in shares) | 476,545,601 | ||||||||||||||
| Common stock repurchased | 1,602,360,000 | 1,602,360,000 | |||||||||||||
| Remaining amount authorized under the stock repurchase program | 397,640,000 | ||||||||||||||
| Amortization of costs related to share-lending arrangement and other issuance costs | 3,178,000 | 3,139,000 | 9,484,000 | 9,181,000 | |||||||||||
| Unamortized, debt issuance costs | 15,962,000 | 15,962,000 | 27,652,000 | ||||||||||||
| Unamortized, debt issuance costs recorded in deferred financing fees, net | 15,612,000 | 15,612,000 | 27,099,000 | ||||||||||||
| Unamortized, debt issuance costs recorded in long-term related party assets | $ 350,000 | $ 350,000 | $ 553,000 | ||||||||||||
| Preferred stock, par value (in dollars per share) | $ 0.001 | $ 0.001 | $ 0.001 | ||||||||||||
| Undesignated preferred stock, shares authorized | 50,000,000 | 50,000,000 | 50,000,000 | ||||||||||||
| Preferred stock, shares issued | 0 | 6,250,100 | 12,500,000 | ||||||||||||
| Preferred stock, shares outstanding | 0 | 6,250,100 | |||||||||||||
| Conversion of preferred stock to common stock (in shares) | 6,250,100 | 6,250,100 | 6,249,900 | 1,293,509,076 | 1,293,509,076 | 1,293,467,684 | |||||||||
| Number of outstanding warrants to acquire common stock (in shares) | 18,455,000 | 18,455,000 | 18,455,000 | ||||||||||||
| Average exercise price (in dollars per warrant) | 2.55 | 2.55 | 2.55 | ||||||||||||