Consolidated Statements of Convertible Preferred Stock and Stockholders' (Deficit)/Equity - USD ($)
$ in Thousands |
Total |
Common Stock [Member] |
Additional Paid-in Capital [Member] |
Accumulated Deficit [Member] |
Accumulated Other Comprehensive Income (Loss) [Member] |
Convertible Preferred Stock [Member] |
| Beginning balance (in shares) at Dec. 31, 2012 |
|
|
|
|
|
64,475,633
|
| Beginning balance at Dec. 31, 2012 |
|
|
|
|
|
$ 180,423
|
| Ending balance (in shares) at Dec. 31, 2013 |
|
|
|
|
|
64,475,633
|
| Ending balance at Dec. 31, 2013 |
|
|
|
|
|
$ 180,423
|
| Beginning balance (in shares) at Dec. 31, 2012 |
|
9,897,997,000
|
|
|
|
|
| Beginning balance at Dec. 31, 2012 |
$ (65,388)
|
$ 1
|
$ 3,631
|
$ (69,054)
|
$ 34
|
|
| Increase (Decrease) in Stockholders' Equity [Roll Forward] |
|
|
|
|
|
|
| Exercise of stock options (in shares) |
|
1,036,077,000
|
|
|
|
|
| Exercise of stock options, net |
564
|
|
564
|
|
|
|
| Vesting of early exercised stock options, restricted common stock, and warrants |
128
|
|
128
|
|
|
|
| Early exercise of warrant issued (in shares) |
|
60,000,000
|
|
|
|
|
| Stock-based compensation |
2,427
|
|
2,427
|
|
|
|
| Expense related to warrant |
135
|
|
135
|
|
|
|
| Comprehensive loss |
(62,216)
|
|
|
(62,182)
|
(34)
|
|
| Ending balance (in shares) at Dec. 31, 2013 |
|
10,994,074,000
|
|
|
|
|
| Ending balance at Dec. 31, 2013 |
(124,350)
|
$ 1
|
6,885
|
(131,236)
|
0
|
|
| Increase (Decrease) in Temporary Equity [Roll Forward] |
|
|
|
|
|
|
| Conversion of preferred stock to common stock (in shares) |
|
64,475,633,000
|
|
|
|
64,475,633
|
| Conversion of preferred stock to common stock |
180,423
|
$ 7
|
180,416
|
|
|
$ (180,423)
|
| Ending balance (in shares) at Dec. 31, 2014 |
|
|
|
|
|
0
|
| Ending balance at Dec. 31, 2014 |
|
|
|
|
|
$ 0
|
| Increase (Decrease) in Stockholders' Equity [Roll Forward] |
|
|
|
|
|
|
| Vesting of restricted common stock |
21
|
|
21
|
|
|
|
| Exercise of stock options (in shares) |
|
2,956,676,000
|
|
|
|
|
| Exercise of stock options, net |
3,294
|
|
3,294
|
|
|
|
| Vesting of early exercised stock options, restricted common stock, and warrants |
321
|
|
|
|
|
|
| Vesting of early exercised warrant issued |
300
|
|
300
|
|
|
|
| Stock-based compensation |
14,215
|
|
14,215
|
|
|
|
| Expense related to warrant |
2,639
|
|
2,639
|
|
|
|
| Issuance of common stock upon initial public offering, net of issuance costs (in shares) |
|
12,765,000,000
|
|
|
|
|
| Issuance of common stock upon initial public offering, net of issuance costs |
185,628
|
$ 1
|
185,627
|
|
|
|
| Comprehensive loss |
(85,980)
|
|
|
(85,940)
|
(40)
|
|
| Ending balance (in shares) at Dec. 31, 2014 |
|
91,191,383,000
|
|
|
|
|
| Ending balance at Dec. 31, 2014 |
176,190
|
$ 9
|
393,397
|
(217,176)
|
(40)
|
|
| Ending balance (in shares) at Dec. 31, 2015 |
|
|
|
|
|
0
|
| Ending balance at Dec. 31, 2015 |
|
|
|
|
|
$ 0
|
| Increase (Decrease) in Stockholders' Equity [Roll Forward] |
|
|
|
|
|
|
| Vesting of restricted stock units (in shares) |
|
295,468,000
|
|
|
|
|
| Exercise of stock options (in shares) |
|
4,131,241,000
|
|
|
|
|
| Exercise of stock options, net |
3,944
|
$ 1
|
3,943
|
|
|
|
| Vesting of early exercised stock options, restricted common stock, and warrants |
0
|
|
|
|
|
|
| Stock-based compensation |
18,179
|
|
18,179
|
|
|
|
| Comprehensive loss |
(79,959)
|
|
|
(79,920)
|
(39)
|
|
| Ending balance (in shares) at Dec. 31, 2015 |
|
95,618,092,000
|
|
|
|
|
| Ending balance at Dec. 31, 2015 |
$ 118,354
|
$ 10
|
$ 415,519
|
$ (297,096)
|
$ (79)
|
|