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Benefit Plans - Restricted Stock Awards and Restricted Stock Units (Details) - Restricted Stock
12 Months Ended
Dec. 31, 2021
$ / shares
shares
Shares  
Unvested at the beginning of the year (in shares) | shares 1,269,244
Granted (in shares) | shares 536,940
Vested (in shares) | shares (384,803)
Forfeited (in shares) | shares (55,603)
Unvested at the end of the year (in shares) | shares 1,365,778
Weighted Average Grant-Date Fair Value Per Share  
Unvested at the beginning of the year (in dollars per share) | $ / shares $ 26.35
Granted (in dollars per share) | $ / shares 45.47
Vested (in dollars per share) | $ / shares 32.48
Forfeited (in dollars per share) | $ / shares 34.44
Unvested at the end of the year (in dollars per share) | $ / shares $ 31.81