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Equity Compensation, Employment Agreements and Other Benefit Plans (Narrative) (Details) - Equity Compensation Plan | 12 Months Ended
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Dec. 31, 2020 shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Maximum shares authorized for grant (in shares) | 18,000,000.0
Shares available for grant | 14,300,000
Maximum number of common shares that can be granted to participant in any one year (in shares) | 2,000,000.0
Period during which a participant can be awarded the maximum number of shares allowable under the Plan | 1 year
Maximum percentage of common shares that can be owned or deemed to be owned by a participant (more than) | 9.80%

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- Definition The highest quantity of shares a participant can be awarded in any one year under the plan. + References No definition available. + Details
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- Definition Represents the period during which an employee can be awarded the maximum number of shares allowable under the Plan. + References No definition available. + Details
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- Definition The maximum percentage of common shares that can be owned or deemed to be owned by a participant. If the maximum ownership or deemed ownership is attained no awards may be granted to that participant. + References No definition available. + 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 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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- Details
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