|
Net Loss Per Share (Details) (USD $)
In Thousands, except Share data, unless otherwise specified
|
3 Months Ended |
12 Months Ended |
|
Dec. 31, 2014
|
Sep. 30, 2014
|
Jun. 30, 2014
|
Mar. 31, 2014
|
Dec. 31, 2013
|
Sep. 30, 2013
|
Jun. 30, 2013
|
Mar. 31, 2013
|
Dec. 31, 2014
|
Dec. 31, 2013
|
Dec. 31, 2012
|
| Numerator: |
|
|
|
|
|
|
|
|
|
|
|
| Net loss |
$ (17,962) |
$ (17,420) |
$ (12,609) |
$ (14,488) |
$ (12,531) |
$ (20,342) |
$ (19,512) |
$ (8,305) |
$ (62,479) |
$ (60,690) |
$ (69,128) |
| Accretion of Preferred Stock |
|
|
|
|
|
|
|
|
(9,000) |
(17,471) |
(13,992) |
| Loss attributable to common stockholders - basic |
(17,962) |
(17,420) |
(16,640) |
(19,457) |
(17,304) |
(25,090) |
(23,880) |
(11,887) |
(71,479) |
(78,161) |
(83,120) |
| Earnings (loss) attributable to common stockholders - diluted |
|
|
|
|
|
|
|
|
$ (71,479) |
$ (78,161) |
$ (83,120) |
| Denominator: |
|
|
|
|
|
|
|
|
|
|
|
| Weighted-average number of common shares used in (loss) earnings per share - diluted |
|
|
|
|
|
|
|
|
17,699,487 |
383,310 |
368,261 |
| Basic and diluted (in shares) |
32,678,459 |
29,746,426 |
7,500,148 |
385,664 |
385,688 |
385,688 |
381,525 |
380,352 |
17,699,487 |
383,310 |
368,261 |
| Basic and diluted (in dollars per share) |
|
|
|
|
|
|
|
|
$ (4.04) |
$ (203.91) |
$ (225.71) |
| (Loss) earnings per share - basic (in dollars per share) |
|
|
|
|
|
|
|
|
|
|
|
| (Loss) earnings per share - diluted (in dollars per share) |
|
|
|
|
|
|
|
|
$ (4.04) |
$ (203.91) |
$ (225.71) |