XML 159 R141.htm IDEA: XBRL DOCUMENT v3.25.0.1
STOCK PLANS AND STOCK BASED COMPENSATION - DEFERRED COMPENSATION (Details) - USD ($)
$ / shares in Units, $ in Thousands
 12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Director      
Shares Deferred      
Outstanding, beginning of period (in shares) 113,403 99,227  
Deferred base salaries and dividend equivalents converted to stock units 12,726 17,811  
Stock units converted to Class A Common Shares (6,371) (3,635)  
Outstanding, end of period (in shares) 119,758 113,403 99,227
Vested (in shares) 119,758    
Weighted Average Market Price at Date of Deferral      
Outstanding, beginning of period (in dollars per share) $ 35.65 $ 31.43  
Deferred base salaries and dividend equivalents converted to stock units (in dollars per share) 55.68 43.14  
Stock units converted to Class A Common Shares (in dollars per share) 36.77 33.29  
Outstanding, end of period (in dollars per share) 37.72 $ 35.65 $ 31.43
Vested (in dollars per share) $ 37.72    
Weighted-Average Remaining Contractual Term (years)      
Deferred compensation expense $ 719 $ 777 $ 503
Director | Minimum      
Deferred Compensation      
Specified period during which board and committee fees may be deferred by participants 2 years    
Director | Maximum      
Deferred Compensation      
Specified period during which board and committee fees may be deferred by participants 5 years    
Key Employees      
Deferred Compensation      
Vesting period after Company match 5 years    
Shares Deferred      
Outstanding, beginning of period (in shares) 96,258 82,871  
Deferred base salaries and dividend equivalents converted to stock units 8,412 10,646  
Matching stock units credited (in shares) 8,215 10,578  
Matching stock units forfeited (in shares) (2,087) (2,753)  
Stock units converted to Class A Common Shares (5,734) (5,084)  
Outstanding, end of period (in shares) 105,064 96,258 82,871
Vested (in shares) 73,829    
Unvested (in shares) 31,235    
Weighted Average Market Price at Date of Deferral      
Outstanding, beginning of period (in dollars per share) $ 42.17 $ 41.03  
Deferred base salaries and dividend equivalents converted to stock units (in dollars per share) 56.88 45.03  
Matching stock units credited (in dollars per share) 57.87 44.9  
Matching stock units forfeited (in dollar per share) 43.7 41.09  
Stock units converted to Class A Common Shares (in dollars per share) 46.34 43.01  
Outstanding, end of period (in dollars per share) 44.32 $ 42.17 $ 41.03
Vested (in dollars per share) 42.63    
Unvested (in dollars per share) $ 48.31    
Weighted-Average Remaining Contractual Term (years)      
Outstanding, end of period 3 years 1 month 28 days 2 years 10 months 2 days  
Vested (years) 3 years 1 month 20 days    
Unvested (years) 3 years 2 months 15 days    
Deferred compensation expense $ 493 $ 484 $ 408