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Stock-Based Compensation - Summary of PSUs and RSUs to be Settled in Common Stock Activity (Details) - $ / shares
shares in Thousands
3 Months Ended
Mar. 31, 2022
Mar. 31, 2021
Restricted Stock and RSUs to be Settled in Common Stock    
Shares    
Unvested, shares, beginning of period (in shares) 3,880 3,869
Shares granted (in shares) 768 898
Vested, shares (in shares) (1,177) (1,334)
Forfeited, shares (in shares) (38) (42)
Unvested, shares, end of period (in shares) 3,433 3,391
Weighted Average Grant Date Fair Value    
Unvested, weighted average grant date fair value, beginning of period (in usd per share) $ 61.64 $ 37.57
Weighted average grant date fair value (in dollars per share) 110.24 82.21
Vested, weighted average grant date fair value (in usd per share) 48.50 36.85
Forfeited, weighted average grant date fair value (in usd per share) 63.66 37.37
Unvested, weighted average grant date fair value, end of period (in usd per share) $ 77.09 $ 49.69
Performance Stock Units    
Shares    
Unvested, shares, beginning of period (in shares) 931 1,047
Shares granted (in shares) 148 172
Vested, shares (in shares) (334) (268)
Forfeited, shares (in shares) 0 (11)
Unvested, shares, end of period (in shares) 745 940
Weighted Average Grant Date Fair Value    
Unvested, weighted average grant date fair value, beginning of period (in usd per share) $ 47.27 $ 37.65
Weighted average grant date fair value (in dollars per share) 119.04 90.28
Vested, weighted average grant date fair value (in usd per share) 40.15 38.28
Forfeited, weighted average grant date fair value (in usd per share)   36.90
Unvested, weighted average grant date fair value, end of period (in usd per share) $ 64.69 $ 47.14