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Income Taxes - Narrative (Details) - USD ($) | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Income Tax [Line Items] |  |  |
Amount of total temporary difference related to the excess of financial reporting basis over tax basis in the non-U.S. subsidiaries on which U.S. federal income taxes are not provided | $ 352,800,000 |  |
Valuation allowance against deferred tax assets | 58,200,000 | $ 62,800,000 |
Interest and penalties included within uncertain tax positions | 0 |  |
Uncertain tax positions at the end of the period |  | $ 500,000 | $ 500,000
State and Local Jurisdiction |  |  |
Income Tax [Line Items] |  |  |
Net operating loss carryforwards | 108,900,000 |  |
Net operating loss carryforwards utilized | 17,300,000 |  |
Valuation allowance against net operating loss carryforwards | 700,000 |  |
Domestic Tax Authority |  |  |
Income Tax [Line Items] |  |  |
Valuation allowance against tax credit carryforwards | 32,000,000 |  |
Domestic Tax Authority | Foreign Carryforward |  |  |
Income Tax [Line Items] |  |  |
Tax credit carryforwards | 32,000,000 |  |
U.K. Tax Authority |  |  |
Income Tax [Line Items] |  |  |
Valuation allowance against deferred tax assets | 23,100,000 |  |
U.K. Tax Authority | Capital loss carryforwards |  |  |
Income Tax [Line Items] |  |  |
Tax credit carryforwards | 6,400,000 |  |
Germany Tax Authority |  |  |
Income Tax [Line Items] |  |  |
Net operating loss carryforwards | 29,100,000 |  |
Valuation allowance against net operating losses and other deferred tax assets | 2,400,000 |  |
Italy Tax Authority |  |  |
Income Tax [Line Items] |  |  |
Net operating loss carryforwards | $ 100,000 |  |

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- Definition Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482685/740-10-50-2 + Details
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