XML 83 R71.htm IDEA: XBRL DOCUMENT v3.22.0.1
Share-Based Compensation (Schedule Of Stock Option Activity) (Details) - USD ($)
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Options outstanding, January 1 1,033,838 1,004,014 920,346
Options outstanding, December 31 1,652,505 1,033,838 1,004,014
Options exercisable, December 31 1,169,991    
Weighted Average Exercise Price, Options outstanding, January 1 $ 83.54 $ 74.35 $ 69.24
Weighted Average Exercise Price, Options outstanding, December 31 78.10 $ 83.54 $ 74.35
Weighted Average Exercise Price, Options exercisable, December 31 $ 79.12    
Weighted Average Remaining Contractual Life (Years), Options outstanding, December 31 3 years 4 months 13 days    
Weighted Average Remaining Contractual Life (Years), Options exercisable, December 31 3 years 29 days    
Aggregate Intrinsic Value, Options outstanding, December 31 $ 0    
2012 Plan [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Options granted 12,500 319,669 685,334
Options exercised (20,000) (512,509) (501,664)
Options forfeited   (16,669) (100,002)
Weighted Average Exercise Price, Options granted $ 69.20 $ 90.79 $ 79.08
Weighted Average Exercise Price, Options exercised $ 60.52 72.98 71.52
Weighted Average Exercise Price, Options forfeited   $ 81.37 $ 73.89
Two Thousand Nineteen Stock Option Plan [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Options granted 639,500 272,331  
Options forfeited   (32,998)  
Weighted Average Exercise Price, Options granted $ 69.20 $ 89.76  
Share-based Compensation Arrangement by Share-based Payment Award, Options, Expirations in Period (13,333)    
Weighted Average Exercise Price, Options forfeited $ 90.79 $ 90.79  
Grant Date 2-22-2017      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Options outstanding, December 31 55,331    
Weighted Average Exercise Price, Options outstanding, December 31 $ 74.78    
Weighted Average Remaining Contractual Life (Years), Options outstanding, December 31 1 month 20 days    
Grant Date 2-20-2018 [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Options outstanding, December 31 88,170    
Weighted Average Exercise Price, Options outstanding, December 31 $ 64.33    
Weighted Average Remaining Contractual Life (Years), Options outstanding, December 31 1 year 1 month 20 days    
Grant Date 2-21-2019 [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Options outstanding, December 31 313,504    
Weighted Average Exercise Price, Options outstanding, December 31 $ 79.96    
Weighted Average Remaining Contractual Life (Years), Options outstanding, December 31 2 years 1 month 20 days    
Grant Date 2-21-2020      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Options outstanding, December 31 536,000    
Weighted Average Exercise Price, Options outstanding, December 31 $ 90.79    
Weighted Average Remaining Contractual Life (Years), Options outstanding, December 31 3 years 1 month 24 days    
Grant Date 5-1-2020      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Options outstanding, December 31 7,500    
Weighted Average Exercise Price, Options outstanding, December 31 $ 53.76    
Weighted Average Remaining Contractual Life (Years), Options outstanding, December 31 3 years 3 months 29 days    
Grant date 2-25-2021      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Options outstanding, December 31 652,000    
Weighted Average Exercise Price, Options outstanding, December 31 $ 69.20    
Weighted Average Remaining Contractual Life (Years), Options outstanding, December 31 4 years 1 month 24 days