Annual report pursuant to Section 13 and 15(d)

Income Taxes - Unrecognized Tax Benefits (Details)

v3.7.0.1
Income Taxes - Unrecognized Tax Benefits (Details) - USD ($)
$ in Thousands
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]      
Beginning and end of year balance $ 1,900 $ 1,900 $ 1,900