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Stock Compensation Plans (Restricted Stock Unit Vesting) (Details) - Restricted Stock Units (RSUs) [Member] | Dec. 31, 2018 shares
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2019 [Member] |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Vesting in future period | 304,750
2020 [Member] |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Vesting in future period | 176,250
2021 [Member] |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Vesting in future period | 308,250
2022 [Member] |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Vesting in future period | 789,250

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- Definition Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vesting in Future Period + References No definition available. + Details
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Balance Type: | na
Period Type: | instant

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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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- Details
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- Details
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