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Share-Based Compensation - Additional Information (Details) $ in Millions | 12 Months Ended
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Dec. 31, 2020 USD ($)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Unrecognized compensation cost related to all nonvested awards | $ 25.0
Unrecognized compensation cost is expected to be recognized over a weighted-average period | 1 year 7 months 6 days
Share-based compensation, modification of terms, incremental compensation cost | $ 1.4
Share-based compensation, modification of terms, expected incremental compensation cost | $ 4.4
SARs and Stock Options |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
SAR's and stock options expiration period | 10 years
Restricted Shares and Units | Minimum |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Vesting period | 3 years
Restricted Shares and Units | Maximum |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Vesting period | 5 years

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