Condensed Consolidated Statements 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] | ||||
| Unrecognized actuarial gain, tax | $ 4 | $ 0 | $ 12 | $ 0 |
| Foreign currency translation adjustments, tax | $ 118 | $ 546 | $ 688 | $ (932) |