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Share-based Compensation - Stock Options and Restricted Stock Activity (Details)
9 Months Ended 12 Months Ended
Sep. 30, 2023
USD ($)
$ / shares
shares
Dec. 31, 2022
USD ($)
$ / shares
shares
Stock options    
Options Outstanding    
Balance at beginning of period (in shares) 313,480 394,089
Exercised (in shares) 0 0
Lapsed or canceled (in shares) (120,000) (80,609)
Balance at end of period (in shares) 193,480 313,480
Options exercisable at end of period (in shares) 193,480 313,480
Weighted Average Exercise Price    
Balance at beginning of year (in dollars per share) | $ / shares $ 97.59 $ 100.56
Exercised (in dollars per share) | $ / shares 0 0
Lapsed or canceled (in dollars per share) | $ / shares 79.56 112.14
Balance at end of period (in dollars per share) | $ / shares 99.03 97.59
Options exercisable at end of period (in dollars per share) | $ / shares $ 99.03 $ 97.59
Restricted Stock Awards    
Summary of restricted stock    
Balance at beginning of year (in shares) 3,758,174 3,459,363
Granted (in shares) 13,000 314,995
Canceled (in shares) (1,650) (16,184)
Balance at end of period (in shares) 3,769,524 3,758,174
Vested during the period (in shares) 145,415 118,255
Compensation expense | $ $ 5,782,841 $ 10,133,905
Total fair value of shares granted during the period | $ $ 483,860 $ 16,804,931