Annual report pursuant to Section 13 and 15(d)

Income Taxes - Unrecognized Tax Benefits (Details)

v3.3.1.900
Income Taxes - Unrecognized Tax Benefits (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Reconciliation of Unrecognized Tax Benefits [Roll Forward]    
Balance at beginning of year $ 4,237 $ 2,831
Reversal of prior tax positions 0 (1,795)
Additions based on tax positions related to the current year 400 3,201
Balance at end of year $ 4,637 $ 4,237