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Stockholders' Equity - Restricted Stock Units - Intrinsic Value (Details) $ in Millions | 12 Months Ended
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Dec. 31, 2020 USD ($)
Restricted Stock Units |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Aggregate Intrinsic Value [Abstract] |
Intrinsic value of restricted stock units vested | $ 1.4

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- Definition Intrinsic value of vested award under share-based payment arrangement. Excludes share and unit options. + References No definition available. + Details
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