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Stock-Based Compensation - Narrative (Details) - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Employee stock-based compensation $ 17.2 $ 11.4
Performance-based restricted stock units | 2010 Equity Incentive Plan    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Award vesting period (in years) 4 years  
Minimum | Performance-based restricted stock units | 2010 Equity Incentive Plan    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Target share percentage for shares issued 0.00%  
Maximum | Performance-based restricted stock units | 2010 Equity Incentive Plan    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Target share percentage for shares issued 200.00%