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CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (UNAUDITED) - USD ($)
shares in Thousands, $ in Thousands
Common Stock
Class A Common Stock
Common Stock
Class B Common Stock
Common Stock
Additional Paid In Capital
Retained Earnings
Class A Common Stock
Retained Earnings
Class B Common Stock
Retained Earnings
Accumulated Other Comprehensive Income (Loss)
Class A Common Stock
Class B Common Stock
Total
Balance at beginning of period at Dec. 31, 2022     $ 4,648 $ 141,694     $ 742,250 $ (31,979)     $ 856,613
Balance (in shares) at Dec. 31, 2022 17,585 2,160                  
Increase (Decrease) in Stockholders' Equity                      
Net Income (Loss)             28,092       28,092
Net change in AOCI               3,905     3,905
Dividends declared on Common Stock:                      
Dividends declared on Common Stock         $ (6,581) $ (734)     $ (6,581) $ (734)  
Stock options exercised, net of shares withheld       (84)             (84)
Net change in notes receivable on Class A Common Stock       84             84
Deferred director compensation expense - Class A Common Stock       110             110
Deferred designed key employee compensation expense - Class A Common Stock       221             221
Deferred designed key employee compensation expense - Class A Common Stock (In shares) 7                    
Employee stock purchase plan - Class A Common Stock       162             162
Employee stock purchase plan - Class A Common Stock (in shares) 4                    
Stock-based awards, Performance stock units       39             39
Stock-based awards, Restricted stock       173             173
Stock-based awards, Restricted stock (in shares) 2                    
Stock options       202             202
Balance at end of period at Mar. 31, 2023     4,648 142,601     763,027 (28,074)     882,202
Balance (in shares) at Mar. 31, 2023 17,598 2,160                  
Balance at beginning of period at Dec. 31, 2023     4,553 142,124     786,487 (20,408)     912,756
Balance (in shares) at Dec. 31, 2023 17,203 2,155                  
Increase (Decrease) in Stockholders' Equity                      
Net Income (Loss)             30,606       30,606
Net change in AOCI               486     486
Dividends declared on Common Stock:                      
Dividends declared on Common Stock         $ (6,986) $ (796)     $ (6,986) $ (796)  
Stock options exercised, net of shares withheld     26 (689)     (437)       (1,100)
Stock options exercised, net of shares withheld (in shares) 37                    
Conversion of Class B to Class A Common Shares (in shares) 4 (4)                  
Deferred director compensation expense - Class A Common Stock     (1) 135             134
Deferred designed key employee compensation expense - Class A Common Stock       167             167
Deferred designed key employee compensation expense - Class A Common Stock (In shares) 11                    
Employee stock purchase plan - Class A Common Stock     1 183             184
Employee stock purchase plan - Class A Common Stock (in shares) 4                    
Stock-based awards, Performance stock units       36             36
Stock-based awards, Restricted stock     (1) (34)     (38)       (73)
Stock-based awards, Restricted stock (in shares) 1                    
Stock options       169             169
Balance at end of period at Mar. 31, 2024     $ 4,578 $ 142,091     $ 808,836 $ (19,922)     $ 935,583
Balance (in shares) at Mar. 31, 2024 17,260 2,151