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Employee Benefit Plans - Narrative (Details) $ in Millions | 12 Months Ended
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Dec. 31, 2022 USD ($) age | Dec. 31, 2021 USD ($) | Dec. 31, 2020 USD ($)
UNITED STATES |  |  |
Defined contribution pension plan |  |  |
Employer match, contributions | $ 0.3 | $ 0.3 | $ 0.3
Foreign Plan |  |  |
Defined contribution pension plan |  |  |
Required rate of return under Belgian law, employer contributions | 1.80% |  |
Required rate of return under Belgian law, employee contributions | 1.80% |  |
Benefit rights vests upon statutory retirement age | age | 62 |  |
Accumulated benefit obligation | $ 16.8 | $ 22.9 |
Expected employer contributions over the next twelve months | $ 1.0 |  |

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- Definition Represents element pertaining to providing retirement benefits to employees after completion of statutory retirement age. + References No definition available. + Details
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- Definition Required rate of return on employee contributions to defined benefit plan under law. + References No definition available. + Details
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- Definition Required rate of return on employer contributions to defined benefit plan under law. + References No definition available. + Details
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- Definition Amount of actuarial present value of benefits attributed to employee service rendered, excluding assumptions about future compensation level. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (e) -URI https://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 + Details
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- Definition Amount of contribution expected to be received by defined benefit plan from employer in next fiscal year following current fiscal year. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (g) -URI https://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 55 -Paragraph 18 -URI https://asc.fasb.org/extlink&oid=123450688&loc=d3e4587-114921 + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition Amount of discretionary contributions made by an employer to a defined contribution plan. + References No definition available. + Details
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- Details
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- Details
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