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Income Taxes - Narrative (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Significant Change in Unrecognized Tax Benefits is Reasonably Possible [Line Items] |  |  |
Increase (Decrease) in valuation allowance | $ 573 | $ 5,600 | $ (345)
U.S. federal net operating loss carryforwards | 45,600 |  |
Foreign operating loss carryforwards | 22,800 |  |
Foreign withholding tax | 288 | 228 | 638
Unrecognized tax benefits including interest and penalties | 2,000 | 2,000 |
Unrecognized tax benefits that would impact effective rate | 2,000 | 1,600 |
Unrecognized tax benefits reduction to non-current deferred income tax assets | 1,000 | 627 |
Accrued interest and penalties | 322 | 276 |
Increase (decrease) of uncertain tax benefits related to certain liabilities for unrecognized tax benefits | 46 | $ (90) | $ (7)
Estimated decrease in unrecognized tax benefit in next twelve months | 86 |  |
Domestic |  |  |
Significant Change in Unrecognized Tax Benefits is Reasonably Possible [Line Items] |  |  |
Operating loss carryforward, expiring | 34,500 |  |
Operating loss carryforward, no expiration | $ 11,100 |  |
Period to utilize the net operating loss carryforwards | 14 years |  |
NOL carryforward used in period | $ 21,300 |  |
Foreign |  |  |
Significant Change in Unrecognized Tax Benefits is Reasonably Possible [Line Items] |  |  |
Operating loss carryforward, expiring | 879 |  |
Operating loss carryforward, no expiration | $ 21,900 |  |

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