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Stock-Based Compensation - Non-Vested Restricted Stock Award Activity (Details)
shares in Thousands
 9 Months Ended
Sep. 30, 2023
$ / shares
shares
Shares  
Non-vested at beginning of period (in shares) | shares 376
Granted (in shares) | shares 340
Vested (in shares) | shares (196)
Forfeited (in shares) | shares (4)
Non-vested at end of period (in shares) | shares 516
Weighted-Average Grant Date Fair Value  
Non-vested at beginning of period (in dollars per share) | $ / shares $ 36.82
Granted (in dollars per share) | $ / shares 14.15
Vested (in dollars per share) | $ / shares 36.86
Forfeited (in dollars per share) | $ / shares 38.19
Non-vested at end of period (in dollars per share) | $ / shares $ 21.83