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SHARE-BASED COMPENSATION AND BENEFIT PLANS (Summary of Restricted Stock) (Details) - Restricted stock [Member] - $ / shares
shares in Thousands
12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Share-Based Compensation and Benefit Plans      
Restricted stock granted during period, weighted-average grant date fair value $ 645.31 $ 509.24 $ 412.67
Employee [Member]      
Share-Based Compensation and Benefit Plans      
Non-vested restricted stock at beginning of the year, weighted-average grant date fair value 419.47    
Restricted stock granted during period, weighted-average grant date fair value 660.48    
Restricted stock vested during the period, weighted-average grant date fair value 400.23    
Restricted stock forfeited during the period, weighted-average grant date fair value 0    
Non-vested restricted stock at the end of the year, weighted-average grant date fair value $ 531.66 $ 419.47  
Employee [Member] | Performance shares [Member]      
Share-Based Compensation and Benefit Plans      
Non-vested restricted stock beginning balance, shares 3    
Restricted stock granted during the period, shares 1    
Restricted stock vested during the period, shares (1)    
Restricted stock forfeited during the period, shares 0    
Non-vested restricted stock ending balance, shares 3 3  
Shares withheld to cover employees' taxes upon vesting 1    
Director [Member]      
Share-Based Compensation and Benefit Plans      
Non-vested restricted stock at beginning of the year, weighted-average grant date fair value $ 508.45    
Restricted stock granted during period, weighted-average grant date fair value 635.62    
Restricted stock vested during the period, weighted-average grant date fair value 508.45    
Restricted stock forfeited during the period, weighted-average grant date fair value 0    
Non-vested restricted stock at the end of the year, weighted-average grant date fair value $ 635.62 $ 508.45  
Director [Member] | Performance shares [Member]      
Share-Based Compensation and Benefit Plans      
Non-vested restricted stock beginning balance, shares 2    
Restricted stock granted during the period, shares 2    
Restricted stock vested during the period, shares (2)    
Restricted stock forfeited during the period, shares 0    
Non-vested restricted stock ending balance, shares 2 2