Income Taxes - Components of Income (Loss) from Continuing Operations Before Income Tax (Details) - USD ($) $ in Thousands |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2015 |
Dec. 31, 2014 |
Dec. 31, 2013 |
|
| Income Tax Disclosure [Abstract] | |||
| United States | $ 9,620 | $ (4,246) | $ (5,907) |
| Income (loss) from continuing operations before income taxes | $ 9,620 | $ (4,246) | $ (5,907) |