| Schedule of Earnings per Share, Basic and Diluted [Table Text Block] |
The following table sets forth the computation of basic and diluted loss per share of Class A and Class B common stock for the three and six months ended June 30, 2014 and 2013 (in thousands, except share amounts and per share amounts): | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Three Months Ended June 30, | | Six Months Ended June 30, | | | 2014 | | 2013 | | 2014 | | 2013 | | | Class A | | Class B | | Class A | | Class B | | Class A | | Class B | | Class A | | Class B | Basic loss per share: | | | | | | | | | | | | | | | | | Numerator | | | | | | | | | | | | | | | | | Allocation of net loss | | $ | (20,847 | ) | | $ | (75 | ) | | $ | (5,530 | ) | | $ | (21 | ) | | $ | (56,085 | ) | | $ | (200 | ) | | $ | (8,761 | ) | | $ | (32 | ) | Less: Allocation of net income attributable to noncontrolling interests | | 1,946 |
| | 7 |
| | 2,016 |
| | 7 |
| | 4,369 |
| | 16 |
| | 2,763 |
| | 10 |
| Allocation of net loss attributable to common stockholders | | $ | (22,793 | ) | | $ | (82 | ) | | $ | (7,546 | ) | | $ | (28 | ) | | $ | (60,454 | ) | | $ | (216 | ) | | $ | (11,524 | ) | | $ | (42 | ) | Denominator | | | | | | | | | | | | | | | | | Weighted-average common shares outstanding | | 673,138,416 |
| | 2,399,976 |
| | 659,961,460 |
| | 2,399,976 |
| | 676,558,565 |
| | 2,399,976 |
| | 658,180,951 |
| | 2,399,976 |
| Basic loss per share | | $ | (0.03 | ) | | $ | (0.03 | ) | | $ | (0.01 | ) | | $ | (0.01 | ) | | $ | (0.09 | ) | | $ | (0.09 | ) | | $ | (0.02 | ) | | $ | (0.02 | ) | | | | | | | | | | | | | | | | | | Diluted loss per share: | | | | | | | | | | | | | | | | | Numerator | | | | | | | | | | | | | | | | | Allocation of net loss attributable to common stockholders | | $ | (22,793 | ) | | $ | (82 | ) | | $ | (7,546 | ) | | $ | (28 | ) | | $ | (60,454 | ) | | $ | (216 | ) | | $ | (11,524 | ) | | $ | (42 | ) | Reallocation of net income attributable to common stockholders as a result of conversion of Class B(1) | | — |
| | — |
| | — |
| | — |
| | — |
| | — |
| | — |
| | — |
| Allocation of net loss attributable to common stockholders | | $ | (22,793 | ) | | $ | (82 | ) | | $ | (7,546 | ) | | $ | (28 | ) | | $ | (60,454 | ) | | $ | (216 | ) | | $ | (11,524 | ) | | $ | (42 | ) | Denominator | | | | | | | | | | | | | | | | | Weighted-average common shares outstanding used in basic computation | | 673,138,416 |
| | 2,399,976 |
| | 659,961,460 |
| | 2,399,976 |
| | 676,558,565 |
| | 2,399,976 |
| | 658,180,951 |
| | 2,399,976 |
| Conversion of Class B(1) | | — |
| | — |
| | — |
| | — |
| | — |
| | — |
| | — |
| | — |
| Employee stock options(1) | | — |
| | — |
| | — |
| | — |
| | — |
| | — |
| | — |
| | — |
| Restricted shares and RSUs(1) | | — |
| | — |
| | — |
| | — |
| | — |
| | — |
| | — |
| | — |
| Weighted-average diluted shares outstanding(1) | | 673,138,416 |
| | 2,399,976 |
| | 659,961,460 |
| | 2,399,976 |
| | 676,558,565 |
| | 2,399,976 |
| | 658,180,951 |
| | 2,399,976 |
| Diluted loss per share | | $ | (0.03 | ) | | $ | (0.03 | ) | | $ | (0.01 | ) | | $ | (0.01 | ) | | $ | (0.09 | ) | | $ | (0.09 | ) | | $ | (0.02 | ) | | $ | (0.02 | ) |
| | (1) | Conversion of Class B shares into Class A shares and outstanding equity awards have not been reflected in the diluted loss per share calculation for the three and six months ended June 30, 2014 and 2013 because the effect would be antidilutive. |
|
| Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block] |
The following outstanding equity awards are not included in the diluted loss per share calculation above because they would have had an antidilutive effect: | | | | | | | | | | | | | | Three Months Ended June 30, | | Six Months Ended June 30, | | 2014 | | 2013 | | 2014 | | 2013 | Stock options | 2,871,939 |
| | 6,268,708 |
| | 3,052,703 |
| | 6,851,765 |
| Restricted stock units | 43,983,986 |
| | 42,601,423 |
| | 42,075,003 |
| | 37,075,549 |
| Restricted stock | 62,158 |
| | 302,715 |
| | 69,583 |
| | 427,506 |
| ESPP shares | 697,244 |
| | 550,165 |
| | 560,058 |
| | 559,170 |
| Total | 47,615,327 |
| | 49,723,011 |
| | 45,757,347 |
| | 44,913,990 |
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