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Stock Plans and Share-Based Compensation - Roll-Forward of Activity for Performance Share Units (Details) - Performance shares - $ / shares
shares in Thousands
12 Months Ended
Dec. 31, 2021
Dec. 31, 2018
Units    
Unvested balance at beginning of period (in units) 835  
Performance Share Units Granted (in units) 1,440  
Target Award Adjustment (in units) 279  
Vested (in units) (557)  
Forfeited (in units) (36)  
Unvested balance at end of period (in units) 1,961  
Weighted- Average Grant-Date Fair Value    
Unvested balance at beginning of period (in dollars per unit) $ 17.08  
Performance Share Units Granted (in dollars per unit) 30.35  
Target Award Adjustment (in dollars per unit) 14.80  
Vested (in dollars per units) 14.80  
Forfeited (in dollars per unit) 25.77  
Unvested balance at end of period (in dollars per unit) $ 27.00  
Shares awarded as a percentage of granted 100.00% 200.00%