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STOCKHOLDERS' EQUITY - Activity of the Plans (Details) - USD ($)
 3 Months Ended 6 Months Ended 9 Months Ended 12 Months Ended
Sep. 30, 2024
Sep. 30, 2023
Jun. 30, 2023
Sep. 30, 2024
Sep. 30, 2023
Jun. 30, 2024
Dec. 31, 2023
Restricted stock and RSU grants              
Restricted stock and RSU grants (based on grant price):              
Weighted average per share value of non-vested shares (in dollars per share) $ 24.88 $ 25.91   $ 24.88 $ 25.91    
Value of stock vested during the period       $ 4,723,000 $ 5,165,000    
Weighted average per share value of shares forfeited during the period (in dollars per share) $ 0 $ 25.85   $ 30.46 $ 25.47    
Total charge to operations:              
Total charge to operations $ 1,248,000 $ 1,211,000   $ 3,687,000 $ 4,103,000    
Restricted stock              
Summary of the activity of the incentive Plans              
Average per share grant price (in dollars per share)       $ 21.60 $ 22.09    
Deferred compensation to be recognized over vesting period       $ 3,265,000 $ 3,379,000    
Number of non-vested shares:              
Non-vested beginning of period (in shares) 727,140 712,920 712,375 712,560 712,375 712,920 712,375
Number of shares granted       151,180 152,955    
Vested during period (in shares)       (136,600) (152,300)    
Forfeitures (in shares)   (260)     (370)    
Non-vested end of period (in shares) 727,140 712,660 712,920 727,140 712,660 727,140 712,560
Total charge to operations:              
Total charge to operations $ 921,000 $ 923,000   $ 2,734,000 $ 3,051,000    
Weighted average vesting period       2 years 3 months 18 days      
Restricted stock | General and administrative expense              
Total charge to operations:              
Total compensation costs related to non-vested awards that have not yet been recognized $ 8,158,000     $ 8,158,000      
RSU grants              
Summary of the activity of the incentive Plans              
Average per share grant price (in dollars per share) $ 25.60 $ 20.32   $ 25.60 $ 20.32    
Deferred compensation to be recognized over vesting period $ 1,167,000 $ 979,000   $ 1,167,000 $ 979,000    
Number of non-vested shares:              
Non-vested beginning of period (in shares) 168,490 166,050 241,076 248,112 241,076 166,050 241,076
Number of shares granted 88,250 85,250   88,250 85,250    
Vested during period (in shares)       (39,811) (74,988)    
Forfeitures (in shares)       (39,811) (38)    
Non-vested end of period (in shares) 256,740 251,300 166,050 256,740 251,300 168,490 248,112
Total charge to operations:              
Total charge to operations $ 327,000 $ 288,000   $ 953,000 $ 1,052,000    
Weighted average vesting period       1 year 9 months 18 days      
RSU grants | General and administrative expense              
Total charge to operations:              
Total compensation costs related to non-vested awards that have not yet been recognized $ 1,957,000     $ 1,957,000