Consolidated Balance Sheets (Parenthetical) - $ / shares |
Jun. 30, 2015 |
Dec. 31, 2014 |
Jun. 30, 2014 |
|---|---|---|---|
| Class A Common Stock [Member] | |||
| Common Stock, Par or Stated Value Per Share | $ 0.0003 | $ 0.0003 | $ 0.0003 |
| Common Stock, Shares Authorized | 400,000,000 | 400,000,000 | 400,000,000 |
| Shares issued | 177,295,988 | 174,528,423 | |
| Shares outstanding | 177,295,988 | 174,528,423 | |
| Class B Convertible Common Stock [Member] | |||
| Common Stock, Par or Stated Value Per Share | $ 0.0003 | $ 0.0003 | $ 0.0003 |
| Common Stock, Shares Authorized | 36,600,000 | 38,750,000 | |
| Shares issued | 36,600,000 | 38,750,000 | |
| Shares outstanding | 36,600,000 | 38,750,000 | |
| Common Class C [Member] | |||
| Common Stock, Par or Stated Value Per Share | $ 0.0003 | $ 0.0003 | $ 0.0003 |
| Common Stock, Shares Authorized | 400,000,000 | 400,000,000 | 400,000,000 |
| Shares issued | 0 | 0 | 0 |
| Shares outstanding | 0 | 0 | 0 |