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Consolidated Statements of Changes in Shareholders' Equity - USD ($)
$ in Thousands
Total
Additional Paid-in Capital
Accumulated Other Comprehensive Income (Loss), Net of Deferred Income Tax
Retained Earnings
Treasury Stock Common
Class A Common Shares
Common Stock
Class A Common Shares
Treasury Stock Common
Series A Cumulative Fixed Rate Preferred Shares
Preferred Stock
Class B Common Shares
Common Stock
Number at Dec. 31, 2022         802,381 10,876,041   4,000 3,793,612
Class A common shares purchased             468,860    
Common shares issued under share incentive plans, net of forfeitures           75,541      
Common shares issued to directors           68,592      
Number at Sep. 30, 2023         1,271,241 11,020,174   4,000 3,793,612
Balance at Dec. 31, 2022   $ 451,305 $ (43,058) $ 233,468 $ (19,486)     $ 4,000  
Class A common shares purchased, at cost             $ (12,677)    
Other comprehensive income (loss):                  
Change in unrealized holding gains (losses)     5,243            
Unrealized foreign currency translation gains (losses) $ (302)   (302)            
Other comprehensive income (loss), net of tax 4,941   4,941            
Net income 19,531     19,531          
Preferred share distributions (330)     (330)          
Dividends/ Distribution to shareholders       (10,150)          
Share compensation plans   3,111              
Balance at Sep. 30, 2023 630,655 454,416 (38,117) 242,519 $ (32,163)     $ 4,000  
Number at Jun. 30, 2023         1,271,241 11,000,287   4,000 3,793,612
Class A common shares purchased             0    
Common shares issued under share incentive plans, net of forfeitures           0      
Common shares issued to directors           19,887      
Number at Sep. 30, 2023         1,271,241 11,020,174   4,000 3,793,612
Balance at Jun. 30, 2023   453,427 (37,171) 238,315 $ (32,163)     $ 4,000  
Class A common shares purchased, at cost             $ 0    
Other comprehensive income (loss):                  
Change in unrealized holding gains (losses)     (803)            
Unrealized foreign currency translation gains (losses) (143)   (143)            
Other comprehensive income (loss), net of tax (946)   (946)            
Net income 7,700     7,700          
Preferred share distributions (110)     (110)          
Dividends/ Distribution to shareholders       (3,386)          
Share compensation plans   989              
Balance at Sep. 30, 2023 630,655 454,416 (38,117) 242,519 $ (32,163)     $ 4,000  
Number at Dec. 31, 2023         1,271,241 11,042,670   4,000 3,793,612
Class A common shares purchased             16,527    
Common shares issued under share incentive plans, net of forfeitures           65,182      
Common shares issued to directors           74,146      
Number at Sep. 30, 2024         1,287,768 11,181,998   4,000 3,793,612
Balance at Dec. 31, 2023 648,753 454,791 (22,863) 244,988 $ (32,163)     $ 4,000  
Class A common shares purchased, at cost             $ (529)    
Other comprehensive income (loss):                  
Change in unrealized holding gains (losses)     14,979            
Unrealized foreign currency translation gains (losses) 37   37            
Other comprehensive income (loss), net of tax 15,016   15,016            
Net income 34,219     34,219          
Preferred share distributions (330)     (330)          
Dividends/ Distribution to shareholders       (14,326)          
Share compensation plans   3,923              
Balance at Sep. 30, 2024 686,726 458,714 (7,847) 264,551 $ (32,692)     $ 4,000  
Number at Jun. 30, 2024         1,287,768 11,158,442   4,000 3,793,612
Class A common shares purchased             0    
Common shares issued under share incentive plans, net of forfeitures           0      
Common shares issued to directors           23,556      
Number at Sep. 30, 2024         1,287,768 11,181,998   4,000 3,793,612
Balance at Jun. 30, 2024   457,550 (18,051) 256,683 $ (32,692)     $ 4,000  
Class A common shares purchased, at cost             $ 0    
Other comprehensive income (loss):                  
Change in unrealized holding gains (losses)     10,146            
Unrealized foreign currency translation gains (losses) 58   58            
Other comprehensive income (loss), net of tax 10,204   10,204            
Net income 12,760     12,760          
Preferred share distributions (110)     (110)          
Dividends/ Distribution to shareholders       (4,782)          
Share compensation plans   1,164              
Balance at Sep. 30, 2024 $ 686,726 $ 458,714 $ (7,847) $ 264,551 $ (32,692)     $ 4,000