Annual report pursuant to Section 13 and 15(d)

Income Taxes - Unrecognized Tax Benefit Rollforward (Details)

v3.3.1.900
Income Taxes - Unrecognized Tax Benefit Rollforward (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]      
Balance at beginning of year $ 7,838 $ 8,306 $ 7,429
Additions based on tax positions related to current year 368 346 1,116
Additions to tax provision of prior years 0 0 6
Reductions to tax provision of prior years (54) (814) (87)
Lapse of the applicable statute of limitations 0 0 (158)
Balance at end of year $ 8,152 $ 7,838 $ 8,306