Consolidated Statement of Comprehensive Income (Parenthetical) - USD ($) $ in Thousands |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Sep. 30, 2016 |
Sep. 30, 2015 |
Sep. 30, 2016 |
Sep. 30, 2015 |
|
| Statement of Comprehensive Income [Abstract] | ||||
| Other comprehensive income (loss), Unrealized Holding Gain (Loss) on Securities Arising During the Period, tax | $ 0 | $ 0 | $ 0 | $ 0 |
| Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Tax | $ 41 | $ 0 | $ 68 | $ 0 |