Summary of Significant Accounting Policies - Property (Details) - USD ($) $ / shares in Units, $ in Thousands |
3 Months Ended | 12 Months Ended | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
Dec. 31, 2016 |
Sep. 30, 2016 |
Jun. 30, 2016 |
Mar. 31, 2016 |
Dec. 31, 2015 |
Sep. 30, 2015 |
Jun. 30, 2015 |
Mar. 31, 2015 |
Dec. 31, 2016 |
Dec. 31, 2015 |
Dec. 31, 2014 |
|
| Property and Equipment | |||||||||||
| Estimated useful life | P3Y | ||||||||||
| Gain (loss) from operations | $ (96,488) | $ (59,838) | $ 665 | ||||||||
| Increase (decrease) in net loss | $ 37,907 | $ 26,017 | $ 23,156 | $ 8,685 | $ 22,960 | $ 17,630 | $ 19,681 | $ 10,004 | $ 95,765 | $ 70,275 | $ 5,152 |
| Increase (decrease) in basic and diluted loss per share (in dollars per share) | $ 0.72 | $ 0.50 | $ 0.46 | $ 0.17 | $ 0.47 | $ 0.39 | $ 3.58 | $ 1.89 | $ 1.86 | $ 2.68 | $ 1.07 |
| Impairment of assets | $ 2,138 | $ 1,557 | |||||||||
| Machinery and equipment | |||||||||||
| Property and Equipment | |||||||||||
| Estimated useful life | P3Y | ||||||||||
| Impairment of assets | 2,100 | ||||||||||
| Machinery and equipment | Change to estimated useful life | |||||||||||
| Property and Equipment | |||||||||||
| Estimated useful life | P5Y | ||||||||||
| Increase (decrease) in net loss | $ 1,700 | $ (1,700) | |||||||||
| Increase (decrease) in basic and diluted loss per share (in dollars per share) | $ 0.04 | $ (0.07) | |||||||||