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Stock-based Compensation - Schedule of Restricted Stock Awards and Restricted Stock Units (Details) - Restricted Stock and Restricted Stock Units
shares in Millions
3 Months Ended
Mar. 31, 2022
$ / shares
shares
Units (millions)  
Beginning Balance (in shares) | shares 1.1
Granted (in shares) | shares 0.6
Vested (in shares) | shares (0.4)
Forfeited (in shares) | shares 0.0
Ending Balance (in shares) | shares 1.3
Weighted- Average Exercise Price  
Beginning Balance (in usd per share) | $ / shares $ 28.85
Granted (in usd per share) | $ / shares 28.87
Vested (in usd per share) | $ / shares 28.43
Forfeited (in usd per share) | $ / shares 28.78
Ending Balance (in usd per share) | $ / shares $ 29.00