| Dec 31,
2011 | Dec 31,
2012 | Dec 31,
2013 | Dec 31,
2014 | Dec 31,
2017 | Dec 31,
2018 | Dec 31,
2019 | Dec 31,
2020 | Dec 31,
2021 | Dec 31,
2022 |
|---|
| Revenues | 232 | 255 | 287 | 329 | 404 | 419 | 389 | 356 | 367 | 376 |
|---|
| Cost of revenues | - | - | - | - | - | 200 | 200 | 181 | 203 | 205 |
|---|
| Selling and marketing | 78 | 92 | 100 | 104 | 131 | 108 | 89 | 70 | 67 | 68 |
|---|
| Research and development | 34 | 34 | 41 | 60 | 89 | 77 | 62 | 39 | 39 | 37 |
|---|
| General and administrative | 49 | 38 | 46 | 63 | 75 | 85 | 66 | 56 | 62 | 61 |
|---|
| Amortization of intangible assets | 9 | 9 | 8 | 7 | 35 | 33 | 30 | 27 | 25 | 27 |
|---|
| Goodwill, Impairment Loss | - | - | - | - | - | - | 224 | - | - | 46 |
|---|
| Restructuring | - | - | - | - | 11 | 12 | 3 | - | - | 6 |
|---|
| Impairment of right-of-use and long-lived assets | - | - | - | - | - | - | - | 5 | - | 0 |
|---|
| Total expenses from operations | 250 | 263 | 284 | 344 | 699 | 558 | 699 | 377 | 396 | 451 |
|---|
| Loss from operations | -18 | -8 | 3 | -15 | -296 | -139 | -310 | -21 | -29 | -75 |
|---|
| Loss on extinguishment of debt | - | - | - | - | - | - | - | - | -10 | - |
|---|
| Interest expense, net | - | - | - | - | -1 | -16 | -32 | -36 | -8 | -1 |
|---|
| Other income (expense), net | -1 | -1 | -1 | -1 | 15 | -1 | 2 | 15 | -6 | 10 |
|---|
| Gain (loss) from foreign currency transactions | -0 | -1 | -0 | 1 | -3 | 1 | 0 | -4 | 3 | 1 |
|---|
| Loss before income taxes | -19 | -9 | 2 | -15 | -284 | -156 | -340 | -47 | -49 | -65 |
|---|
| Income tax provision | -3 | 2 | 4 | -5 | -3 | 4 | -1 | 1 | 1 | 2 |
|---|
| Net loss | -16 | -12 | -2 | -10 | -281 | -159 | -339 | -48 | -50 | -67 |
|---|
| Net loss | -16 | -12 | -2 | -10 | -281 | -159 | -339 | -48 | -50 | -67 |
|---|
| Convertible redeemable preferred stock dividends | - | - | - | - | - | - | - | - | 13 | 16 |
|---|
| Total net loss available to common stockholders | - | - | - | - | - | - | - | - | -63 | -82 |
|---|
| Total net loss available to common stockholders | - | - | - | - | - | - | - | - | -63 | -82 |
|---|
| Basic (in shares) | -0.49 | -0.35 | -0.07 | -0.29 | -4.9 | - | - | - | -0.78 | -0.89 |
|---|
| Diluted (in shares) | -0.49 | -0.35 | -0.07 | -0.29 | -4.9 | - | - | - | -0.78 | -0.89 |
|---|
| Net loss | -16 | -12 | -2 | -10 | -281 | -159 | -339 | -48 | -50 | -67 |
|---|
| Foreign currency cumulative translation adjustment | - | - | - | - | 6 | -4 | -2 | 5 | -5 | -4 |
|---|
| Total comprehensive loss | -17 | -11 | -2 | -17 | -275 | -164 | -341 | -43 | -55 | -70 |
|---|