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CONSOLIDATED STATEMENTS OF EQUITY - USD ($)
$ in Thousands
Total
Common Stock
Class A Common Stock
Common Stock
Class B Common Stock
Capital in Excess of Par Value
Retained Earnings
Accumulated Other Comprehensive (Loss) Income
Balance, beginning of period at Dec. 31, 2020 $ 300,624 $ 5,490 $ 1,568 $ 10,895 $ 294,270 $ (11,599)
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
Stock-based compensation 5,561 125   5,436    
Conversion of Class B to Class A shares 0 1 (1)      
Net income 48,125       48,125  
Cash dividends on Class A and Class B common stock (5,617)       (5,617)  
Current period other comprehensive income, net of tax 2,851         2,851
Reclassification adjustment to net income, net of tax 572         572
Balance, end of period at Dec. 31, 2021 352,116 5,616 1,567 16,331 336,778 (8,176)
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
Stock-based compensation 7,541 166   7,375    
Conversion of Class B to Class A shares 0 1 (1)      
Net income 74,158       74,158  
Cash dividends on Class A and Class B common stock (6,012)       (6,012)  
Current period other comprehensive income, net of tax (1,310)         (1,310)
Reclassification adjustment to net income, net of tax 473         473
Balance, end of period at Dec. 31, 2022 $ 426,966 $ 5,783 $ 1,566 $ 23,706 $ 404,924 $ (9,013)