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Income Taxes - Narrative (Details) - USD ($) $ in Thousands |  | 12 Months Ended |
--- | --- | --- | ---
Jan. 01, 2018 | Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Operating Loss Carryforwards [Line Items] |  |  |  |  |
Valuation allowance |  | $ 1,207 | $ 2,329 |  |
Undistributed earnings of foreign subsidiaries |  | 427,696 |  |  |
Undistributed earnings of foreign subsidiaries, subject to one-time transition tax by Tax Cut and Jobs Act and GILTI |  | 329,315 |  |  |
Unrecognized tax benefits |  | 1,223 | 1,763 | $ 638 | $ 872
Unrecognized tax benefits that would impact effective tax rate |  | 1,175 | 1,733 | 627 |
Unrecognized tax benefits, income tax penalties and interest expense |  | (20) | 101 | 8 |
Unrecognized tax benefits, income tax penalties and interest accrued |  | 272 | $ 362 | $ 252 |
Domestic Tax Authority |  |  |  |  |
Operating Loss Carryforwards [Line Items] |  |  |  |  |
Operating loss carryforwards subject to expiration |  | 533 |  |  |
Foreign Tax Authority |  |  |  |  |
Operating Loss Carryforwards [Line Items] |  |  |  |  |
Operating loss carryforwards, not subject to expiration |  | 1,798 |  |  |
Operating loss carryforwards and tax credit carryforwards not subject to expiration |  | 4,286 |  |  |
Operating loss carryforwards and tax credit carryforwards not subject to expiration, valuation allowance |  | 289 |  |  |
State and Local Jurisdiction |  |  |  |  |
Operating Loss Carryforwards [Line Items] |  |  |  |  |
Operating loss carryforwards and tax credit carryforwards subject to limitation |  | $ 667 |  |  |
Accounting Standards Update 2016-16 | Adjustments for New Accounting Principle, Early Adoption |  |  |  |  |
Operating Loss Carryforwards [Line Items] |  |  |  |  |
Tax benefit from intercompany sales | $ (46,369) |  |  |  |

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