v3.3.1.900

Summary of Significant Accounting Policies (Additional Capital) (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Dec. 31, 2015 | Sep. 30, 2015 | Jun. 30, 2015 | Mar. 31, 2015 | Dec. 31, 2014 | Sep. 30, 2014 | Jun. 30, 2014 | Mar. 31, 2014 | Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012
Policies |  |  |  |  |  |  |  |  |  |  |  |
Net (loss) income | $ (22,960) | $ (17,630) | $ (19,681) | $ (10,004) | $ 1,254 | $ 3,724 | $ (514) | $ (9,616) | $ (70,275) | $ (5,152) | $ (37,110) |
Accumulated deficit | 250,083 |  |  |  | 179,808 |  |  |  | 250,083 | 179,808 |  |
Cash and cash equivalents | 28,947 |  |  |  | 87,176 |  |  |  | 28,947 | 87,176 | $ 30,496 | $ 5,747
Short-term investments | 201,586 |  |  |  |  |  |  |  | 201,586 |  |  |
Restricted cash |  |  |  |  |  |  |  |  |  |  |  |
Restricted cash, current portion | 901 |  |  |  | 503 |  |  |  | 901 | 503 |  |
Restricted cash, long term portion | 683 |  |  |  | $ 808 |  |  |  | 683 | $ 808 |  |
Corporate Headquarters Lease |  |  |  |  |  |  |  |  |  |  |  |
Restricted cash |  |  |  |  |  |  |  |  |  |  |  |
Restricted cash, current portion | 800 |  |  |  |  |  |  |  | 800 |  |  |
Restricted cash, long term portion | 300 |  |  |  |  |  |  |  | 300 |  |  |
Cancellation of Service |  |  |  |  |  |  |  |  |  |  |  |
Restricted cash |  |  |  |  |  |  |  |  |  |  |  |
Restricted cash, current portion | 100 |  |  |  |  |  |  |  | 100 |  |  |
Credit Card |  |  |  |  |  |  |  |  |  |  |  |
Restricted cash |  |  |  |  |  |  |  |  |  |  |  |
Restricted cash, long term portion | $ 400 |  |  |  |  |  |  |  | $ 400 |  |  |

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