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Benefit Plans (Narrative) (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2020 | Dec. 31, 2019
Benefit Plans [Abstract] |  |
Term of service completed before eligible for coverage |  | 4 months
Employer Matching Contribution, Percent of Match | 100.00% |
Maximum Annual Contributions Per Employee, Percent | 4.00% |
Additional Employer Matching Contribution Percent Of Deferral Match From Eligible Compensation | 50.00% |
Maximum Additional Annual Contributions Per Employee Deferral Percent | 2.00% |
Employer Discretionary Contribution Percent | 100.00% |
Maximum Discretionary Profit Sharing Percent Of Eligible Compensation | 2.00% |
Related plan expense | $ 869 | $ 825
Defined Benefit Plan, Gain (Loss), Net Periodic Benefit Cost (Credit) | $ 1,100 |

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- Definition Defined Benefit Plan, Gain (Loss), Net Periodic Benefit Cost (Credit) + References No definition available. + Details
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- Definition Defined Contribution Plan Additional Employer Matching Contribution Percent Of Deferral Match From Eligible Compensation + References No definition available. + Details
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- Definition Defined Contribution Plan Employer Discretionary Contribution Percent + References No definition available. + Details
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- Definition Defined Contribution Plan Maximum Additional Annual Contributions Per Employee Deferral Percent + References No definition available. + Details
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- Definition Defined Contribution Plan Maximum Discretionary Profit Sharing Percent Of Eligible Compensation + References No definition available. + Details
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- References No definition available. + Details
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- Definition Amount of cost for defined contribution plan. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 70 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=49170846&loc=d3e28014-114942 + Details
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- Definition Percentage employer matches of the employee's percentage contribution matched. + References No definition available. + Details
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- Definition Maximum percentage of employee gross pay the employee may contribute to a defined contribution plan. + References No definition available. + Details
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- Definition Estimated period over which an employee is required to provide service in exchange for the equity-based payment award, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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