Income Taxes - Changes in Amount of Unrecognized Tax Benefits (Details) - USD ($) $ in Thousands |
12 Months Ended | ||
---|---|---|---|
Dec. 31, 2015 |
Dec. 31, 2014 |
Dec. 31, 2013 |
|
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward] | |||
Beginning balance | $ 2,323 | $ 2,200 | $ 290 |
Additions based on tax positions related to the current year | 0 | 0 | 0 |
Additions for tax positions of prior years | 0 | 123 | 2,000 |
Reductions for tax positions of prior years | (2,000) | 0 | (90) |
Settlements | (200) | 0 | 0 |
Ending Balance | $ 123 | $ 2,323 | $ 2,200 |