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Consolidated Statements of Shareholders' Equity (Unaudited) - USD ($)
shares in Thousands, $ in Thousands
Total
Common Stock
Common Stock in Treasury
Retained Earnings
Accumulated Other Comprehensive Loss
Other Equity
Common stock, beginning balance (in shares) at Dec. 31, 2021   20,448        
Treasury stock, beginning balance (in shares) at Dec. 31, 2021     (6,700)      
Beginning balance at Dec. 31, 2021 $ 720,440 $ 271,978 $ (209,920) $ 693,756 $ (40,169) $ 4,795
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
Net income (loss) 14,019     14,019    
Other comprehensive loss (17)       (17)  
Cash dividends declared (2,520)     (2,520)    
Stock-based compensation activity (in shares)   95 95      
Stock-based compensation activity 1,699 $ 6,572 $ (4,873)      
Payments of withholding taxes for stock-based compensation awards (in shares)   (33) (33)      
Payments of withholding taxes for stock-based compensation awards (2,717)   $ (2,717)      
Directors' deferred compensation (in shares)   1 1      
Directors’ deferred compensation 60 $ 39 $ (39)     60
Common stock, ending balance (in shares) at Apr. 01, 2022   20,511        
Treasury stock, ending balance (in shares) at Apr. 01, 2022     (6,637)      
Ending balance at Apr. 01, 2022 730,964 $ 278,589 $ (217,549) 705,255 (40,186) 4,855
Common stock, beginning balance (in shares) at Dec. 31, 2022   20,543        
Treasury stock, beginning balance (in shares) at Dec. 31, 2022     (6,605)      
Beginning balance at Dec. 31, 2022 799,990 $ 288,100 $ (220,864) 769,418 (41,909) 5,245
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
Net income (loss) 25,588     25,588    
Other comprehensive loss 283       283  
Cash dividends declared (2,571)     (2,571)    
Stock-based compensation activity (in shares)   98 98      
Stock-based compensation activity 2,250 $ 9,675 $ (7,411) (14)    
Payments of withholding taxes for stock-based compensation awards (in shares)   (33) (33)      
Payments of withholding taxes for stock-based compensation awards (3,614)   $ (3,614)      
Directors' deferred compensation (in shares)   1 1      
Directors’ deferred compensation 68 $ 27 $ (17)     58
Common stock, ending balance (in shares) at Mar. 31, 2023   20,609        
Treasury stock, ending balance (in shares) at Mar. 31, 2023     (6,539)      
Ending balance at Mar. 31, 2023 $ 821,994 $ 297,802 $ (231,906) $ 792,421 $ (41,626) $ 5,303