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Stock Award Plans, Employee Plan RSU Activity (Details) - Employee Stock Award Plan [Member] - RSUs [Member] - $ / shares
1 Months Ended 12 Months Ended
Jan. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Unvested RSU Shares [Roll Forward]        
Nonvested balance beginning of period (in shares) 590,979 338,418    
Granted (in shares)   339,092    
Vested (in shares)   (83,304)    
Forfeited (in shares)   (3,227)    
Nonvested balance end of period (in shares)   590,979 338,418  
Weighted Average Grant Date Fair Value Per Share [Abstract]        
Nonvested balance beginning of period (in dollars per share) $ 61.07 $ 74.09    
Granted (in dollars per share)   51.36 $ 73.04 $ 74.46
Vested (in dollars per share)   74.29    
Forfeited (in dollars per share)   63.97    
Nonvested balance end of period (in dollars per share)   $ 61.07 $ 74.09  
Vesting period   5 years    
Subsequent Events [Member]        
Unvested RSU Shares [Roll Forward]        
Granted (in shares) 196,915      
Weighted Average Grant Date Fair Value Per Share [Abstract]        
Vesting period 5 years