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Employee Benefit Plans - Expected Employer Contributions (Details) | 12 Months Ended
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Dec. 31, 2020
Retirement Benefits [Abstract] |
Defined Benefit Plan, Expected Future Employer Contributions, Next Fiscal Year, Description | The Company does not have a 2021 required minimum funding contribution for the U.S. qualified defined benefit pension plan. The Company has not determined whether, and to what extent, contributions may be made to the U. S. qualified defined benefit pension plan in 2021.

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- References No definition available. + Details
Name: | us-gaap_CompensationAndRetirementDisclosureAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition Description of contribution expected to be received by defined benefit plan from employer in next fiscal year following current fiscal year. Includes, but is not limited to, range of expected contributions, required minimum contribution and whether expected contribution is discretionary or noncash. + References No definition available. + Details
Name: | us-gaap_DefinedBenefitPlanEstimatedFutureEmployerContributionsInNextFiscalYearDescription
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration