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Consolidated Statements of Stockholders' Equity (Unaudited) Statement - USD ($)
shares in Thousands, $ in Thousands
Total
Common Stock [Member]
Treasury Stock [Member]
Additional Paid-in Capital [Member]
Accumulated Other Comprehensive Loss [Member]
Retained Earnings [Member]
Beginning balance, common stock, shares issued at Dec. 31, 2018   44,076        
Beginning balance, net of taxes at Dec. 31, 2018 $ 672,590 $ 441 $ (138,909) $ 528,654 $ (47,652) $ 330,056
Beginning balance, treasury stock, shares at Dec. 31, 2018     5,367      
Net income 11,389         11,389
Other comprehensive income (loss) (32)       (32)  
Common stock issued, shares   265        
Common stock issued, value 2 $ 2        
Stock-based compensation 2,200     2,200    
Common stock dividends (3,561)         (3,561)
Tax withholding payments on stock-based awards (3,569)     (3,569)    
Other (2)     (2)    
Ending balance, common stock, shares issued at Mar. 31, 2019   44,341        
Ending balance, net of taxes at Mar. 31, 2019 $ 679,017 $ 443 $ (138,909) 527,283 (47,684) 337,884
Ending balance, treasury stock, shares at Mar. 31, 2019     5,367      
Beginning balance, common stock, shares issued at Dec. 31, 2019 44,353 44,353        
Beginning balance, net of taxes at Dec. 31, 2019 $ 701,330 $ 444 $ (138,909) 533,345 (50,248) 356,698
Beginning balance, treasury stock, shares at Dec. 31, 2019 5,367   5,367      
Net income $ 12,200         12,200
Other comprehensive income (loss) 215       215  
Common stock issued, shares   211        
Common stock issued, value 2 $ 2        
Stock-based compensation 1,674     1,674    
Common stock dividends (3,866)         (3,866)
Tax withholding payments on stock-based awards (3,309)     (3,309)    
Proceeds from exercise of stock options 27     27    
Other $ (2)     (2)    
Ending balance, common stock, shares issued at Mar. 31, 2020 44,564 44,564        
Ending balance, net of taxes at Mar. 31, 2020 $ 708,271 $ 446 $ (138,909) $ 531,735 $ (50,033) $ 365,032
Ending balance, treasury stock, shares at Mar. 31, 2020 5,367   5,367