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Stock-based Employee Compensation, Stock Option Plans, and Deferred Compensation Plan for Directors - Summary of Option Activity (Details) - USD ($)
 9 Months Ended
Sep. 30, 2023
Sep. 30, 2022
Number of Shares    
Outstanding at beginning of period (in shares) 1,768,375  
Granted (in shares) 253,500  
Exercised (in shares) 0  
Expired/Forfeited (in shares) (114,375)  
Outstanding at end of period (in shares) 1,907,500  
Exercisable at end of period (in shares) 1,229,875  
Weighted Average Exercise Price per share    
Outstanding at beginning of period (in usd per share) $ 51.28  
Granted (in usd per share) 33.79  
Exercised (in usd per share) 0  
Expired/Forfeited (in usd per share) 49.67  
Outstanding at end of period (in usd per share) 49.05  
Exercisable at end of period (in usd per share) $ 52.28  
Aggregate Intrinsic Value    
Outstanding at beginning of period $ 0  
Granted 375,180  
Exercised 0 $ 179,217
Expired/Forfeited 0  
Outstanding at end of period 375,180  
Exercisable at end of period $ 44,400