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Income Taxes - Narrative (Details) - USD ($) | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2020 | Mar. 28, 2020 | Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Income Tax |  |  |  |  |  |
Cumulative loss period |  |  | 3 years |  |  |
Income tax receivable | $ 2,900,000 |  | $ 2,900,000 |  |  |
Unrecognized tax benefits, reduction resulting from lapse of applicable statute of limitations |  |  | 800,000 |  |  |
Unrecognized tax benefits | 500,000 |  | 500,000 |  |  |
Unrecognized tax benefits that would impact effective tax rate | 1,900,000 |  | 1,900,000 | $ 2,600,000 | $ 2,200,000 |
Penalties or interest liabilities accrued | 0 |  | 0 | 0 | 0 |
Pretax income |  |  | (7,000,000.0) | 12,200,000 | 7,300,000 |
Foreign earnings repatriated |  |  |  |  |  | $ 10,300,000
Income tax expense on foreign earnings |  |  |  |  |  | $ 1,400,000
Foreign subsidiaries' undistributed earnings | 23,200,000 |  | 23,200,000 |  |  |
Tax Cuts and Jobs Act, income tax expense (benefit) |  |  | (100,000) | $ 800,000 | (200,000) |
Other tax expense (benefit) |  |  | (1,500,000) |  |  |
Federal |  |  |  |  |  |
Income Tax |  |  |  |  |  |
Operating loss carryforwards | 26,400,000 |  | 26,400,000 |  |  |
Operating loss carryforwards expected to be utilized | 6,300,000 |  | 6,300,000 |  |  |
Operating loss carryforwards, subject to expiration | 5,900,000 |  | 5,900,000 |  |  |
Operating loss carryforwards, not subject to expiration | 400,000 |  | $ 400,000 |  |  |
Operating loss carryforwards expiration beginning year |  |  | 2039 |  |  |
Operating loss carryforwards expiration ending year |  |  | 2040 |  |  |
Tax credit carryforwards | 1,800,000 |  | $ 1,800,000 |  |  |
Income tax expense on foreign earnings |  |  |  |  | $ 400,000 |
Valuation allowance, deferred tax asset, increase (decrease) | 14,100,000 | $ 7,000,000.0 | 23,300,000 |  |  |
Federal | Tax Year 2020 |  |  |  |  |  |
Income Tax |  |  |  |  |  |
Operating loss carryforwards | 20,100,000 |  | 20,100,000 |  |  |
Capital losses amount | 6,600,000 |  | 6,600,000 |  |  |
State |  |  |  |  |  |
Income Tax |  |  |  |  |  |
Operating loss carryforwards expected to be utilized | 5,700,000 |  | 5,700,000 |  |  |
Net operating loss carryforwards | $ 132,900,000 |  | $ 132,900,000 |  |  |
Operating loss carryforwards expiration beginning year |  |  | 2021 |  |  |
Operating loss carryforwards expiration ending year |  |  | 2040 |  |  |

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