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Stock Incentive Plans - Restricted Stock Award Activity (Details) - Restricted Stock and RSUs - 2016 Equity Compensation Plan - USD ($)
$ / shares in Units, $ in Millions
12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Restricted shares      
Unvested awards, beginning balance (in shares) 246,626 218,013 222,786
Granted (in shares) 205,131 160,878 107,930
Vested (in shares) (125,033) (124,447) (109,452)
Forfeited (in shares) (3,596) (7,818) (3,251)
Unvested awards, ending balance (in shares) 323,128 246,626 218,013
Weighted Average Grant Date Fair Value      
Beginning balance (in dollars per share) $ 32.72 $ 27.48 $ 32.63
Granted (in dollars per share) 52.90 36.58 22.12
Vested (in dollars per share) 33.78 29.62 32.63
Forfeited (in dollars per share) 34.46 31.33 32.63
Ending balance (in dollars per share) $ 45.10 $ 32.72 $ 27.48
Aggregate Fair Value (in millions)      
Aggregate Fair Value (in millions) $ 16.1