Stock Incentive Plans (Narrative) (Details) - Executive Officers [Member] - Restricted Stock [Member] - Class B Common Stock [Member] $ in Millions |
Jan. 08, 2019
USD ($)
item
shares
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |
| Number of shares granted | 1,923,975 |
| Number of shares vested | 481,000 |
| Aggregate fair value on grant date | $ | $ 11.8 |
| Number of annual installments vested | item | 4 |
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- Definition Share-Based Compensation Arrangement By Share-Based Payment Award, Equity Instruments Other Than Options Granted, Grant Date Fair Value No definition available.
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- Definition Share Based Compensation Arrangement By Share Based Payment Award Number Of Annual Installments Already Vested No definition available.
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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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- Definition Number of fully vested and expected to vest options outstanding that can be converted into shares under option plan. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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