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Stock Plans - Additional Information (Details)
3 Months Ended 9 Months Ended
Sep. 30, 2020
Sep. 30, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Percentage of target award based on achieving specified performance targets 135.70%  
Minimum    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Percentage of target award based on achieving targeted performance conditions   0.00%
Maximum    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Percentage of target award based on achieving targeted performance conditions   200.00%
Performance Shares    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Fair value assumptions, average closing price used to calculate expected dividend rate, period (years)   1 year
Stock beta, daily price data period (years)   10 years
Award vesting period   3 years