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Stock-Based Compensation, Summary of Plans (Details) - shares | 12 Months Ended |  |
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Dec. 31, 2020 | Jul. 25, 2018 | Jul. 24, 2018
2008 LTIP [Member] |  |  |
Stock-based Compensation [Abstract] |  |  |
Shares available for awards (in shares) |  |  | 2,000,000
2018 LTIP [Member] |  |  |
Stock-based Compensation [Abstract] |  |  |
Shares available for awards (in shares) | 663,842 |  |
Contractual term of option awards | 10 years |  |
Maximum number of shares that can be awarded (in shares) |  | 1,293,109 |
Aggregate number of shares awarded to date under the plan (in shares) | 170,335 |  |

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- Definition The aggregate number of shares awarded to date under the plan. + References No definition available. + Details
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- Definition Number of shares authorized for issuance under share-based payment arrangement. + 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)(3) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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- Definition The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable. + 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 -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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- Definition Period from grant date that an equity-based award expires, 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)(2) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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