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Summary of Significant Accounting Policies - Revised Consolidated Balance Sheets (Details) - USD ($) $ in Thousands | Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014
--- | --- | --- | --- | ---
Consolidated Balance Sheet |  |  |  |
Other long-term liabilities | $ 12,938 | $ 5,709 |  |
Deferred income taxes | 7,753 | 439 |  |
Total liabilities | 99,692 | 74,108 |  |
Accumulated other comprehensive Income (loss) | (8,568) | (12,910) | $ (8,686) | $ (4,842)
Total stockholders' equity | 237,930 | 253,162 |  |
Total liabilities and stockholders' equity | $ 337,622 | 327,270 |  |
As Previously Reported |  |  |  |
Consolidated Balance Sheet |  |  |  |
Other long-term liabilities |  | 1,878 |  |
Deferred income taxes |  | 853 |  |
Total liabilities |  | 70,691 |  |
Accumulated other comprehensive Income (loss) |  | (9,493) | (5,794) | (2,502)
Total stockholders' equity |  | 256,579 |  |
Total liabilities and stockholders' equity |  | 327,270 |  |
Adjustment |  |  |  |
Consolidated Balance Sheet |  |  |  |
Other long-term liabilities |  | 3,831 |  |
Deferred income taxes |  | (414) |  |
Total liabilities |  | 3,417 |  |
Accumulated other comprehensive Income (loss) |  | (3,417) | $ (2,892) | $ (2,340)
Total stockholders' equity |  | $ (3,417) |  |

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