Summary of Significant Accounting Policies (Property) (Details) - USD ($) $ / shares in Units, $ in Thousands |
1 Months Ended | 3 Months Ended | 12 Months Ended | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Apr. 30, 2015 |
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 |
|
| Property and Equipment | ||||||||||||
| Estimated useful life | P3Y | |||||||||||
| Gain (loss) from operations | $ (59,838) | $ 665 | $ (25,268) | |||||||||
| Net loss | $ 22,960 | $ 17,630 | $ 19,681 | $ 10,004 | $ (1,254) | $ (3,724) | $ 514 | $ 9,616 | $ 70,275 | $ 5,152 | $ 37,110 | |
| Basic and diluted net loss per share (in dollars per share) | $ (0.47) | $ (0.39) | $ (3.58) | $ (1.89) | $ (2.68) | $ (1.07) | $ (9.66) | |||||
| Machinery and equipment | Change to estimated useful life | ||||||||||||
| Property and Equipment | ||||||||||||
| Estimated useful life | P3Y | P5Y | ||||||||||
| Net loss | $ 1,700 | |||||||||||
| Basic and diluted net loss per share (in dollars per share) | $ (0.07) | |||||||||||