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Share Incentive Plans, Assumptions for Options Granted Under 2021 Plan (Details) - 2021 Plan [Member] - Stock Options [Member] - $ / shares
3 Months Ended
Mar. 14, 2022
May 17, 2021
Mar. 31, 2022
May 17, 2021 [Member]      
Share Incentive Plans [Abstract]      
Number of options granted (in shares)   7,500  
Options outstanding (in shares)     7,500
Number exercisable (in shares)     2,550
Exercise price (in dollars per share)     $ 45.05
Remaining lives     9 years 1 month 17 days
Risk free interest rate     0.84%
Expected volatility     31.50%
Expected life     6 years
Dividend yield     0.63%
Fair value at grant date (in dollars per share)     $ 13.23
March 14, 2022 [Member]      
Share Incentive Plans [Abstract]      
Number of options granted (in shares) 100,000    
Options outstanding (in shares)     100,000
Number exercisable (in shares)     0
Exercise price (in dollars per share)     $ 30.46
Remaining lives     9 years 11 months 15 days
Risk free interest rate     2.10%
Expected volatility     35.33%
Expected life     6 years
Dividend yield     1.01%
Fair value at grant date (in dollars per share)     $ 10.23