Stock-Based Compensation (Narrative) (Details) - 2007 Stock Incentive Plan - shares |
3 Months Ended | |
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Mar. 31, 2021 |
Mar. 31, 2020 |
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| Stock options | ||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||
| Options granted (in shares) | 0 | 0 |
| Restricted stock awards and restricted stock units | ||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||
| Equity instruments other than options, granted (in shares) | 98,500 | 53,600 |
| Performance stock units | ||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||
| Equity instruments other than options, granted (in shares) | 163,640 | 0 |
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- Definition The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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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. No definition available.
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- Definition Gross number of share options (or share units) granted during the period. No definition available.
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