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Share-based Compensation - Restricted shares and performance shares (Details) - Non-vested restricted shares and performance shares
shares in Thousands
 3 Months Ended
Mar. 31, 2023
$ / shares
shares
Number of Shares  
Outstanding at the beginning of the period (in shares) | shares 2,496
Granted (in shares) | shares 1,022
Performance award adjustments (in shares) | shares 183
Vested (in shares) | shares (1,012)
Forfeited (in shares) | shares (14)
Outstanding at the end of the period (in shares) | shares 2,675
Weighted Average Grant Date Fair Value  
Outstanding at the beginning of the period (in dollars per share) | $ / shares $ 23.83
Granted (in dollars per share) | $ / shares 22.90
Performance award adjustments (in dollars per share) | $ / shares 10.59
Vested (in dollars per share) | $ / shares 16.22
Forfeited (in dollars per share) | $ / shares 22.46
Outstanding at the end of the period (in dollars per share) | $ / shares $ 25.46