Summary of Significant Accounting Policies Income tax (Details) - USD ($) $ in Thousands |
3 Months Ended | 9 Months Ended | ||
---|---|---|---|---|
Sep. 30, 2016 |
Sep. 30, 2015 |
Sep. 30, 2016 |
Sep. 30, 2015 |
|
Income Tax Disclosure [Abstract] | ||||
Deferred Tax Assets, Net | $ 0 | $ 0 | ||
Income tax expense | $ 1,284 | $ 0 | $ 1,584 | $ 0 |