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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, 2020   44,568        
Beginning balance, net of taxes at Dec. 31, 2020 $ 850,799 $ 446 $ (138,909) $ 538,006 $ (1,078) $ 452,334
Beginning balance, treasury stock, shares at Dec. 31, 2020     5,367      
Net income 149,156         149,156
Other comprehensive income (loss) (4)       (4)  
Common stock issued, shares   130        
Common stock issued, value 1 $ 1        
Stock-based compensation 2,092     2,092    
Common stock dividends $ (4,116)         (4,116)
Dividends declared per common share $ 0.10          
Tax withholding payments on stock-based awards $ (2,729)     (2,729)    
Proceeds from exercise of stock options 63     63    
Other (1)     (1)    
Ending balance, common stock, shares issued at Mar. 31, 2021   44,698        
Ending balance, net of taxes at Mar. 31, 2021 $ 995,261 $ 447 $ (138,909) 537,431 (1,082) 597,374
Ending balance, treasury stock, shares at Mar. 31, 2021     5,367      
Beginning balance, common stock, shares issued at Dec. 31, 2021 44,698 44,698        
Beginning balance, net of taxes at Dec. 31, 2021 $ 1,352,619 $ 447 $ (138,909) 543,249 (1,047) 948,879
Beginning balance, treasury stock, shares at Dec. 31, 2021 5,367   5,367      
Net income $ 302,600         302,600
Other comprehensive income (loss) 114       114  
Common stock issued, shares   117        
Common stock issued, value 1 $ 1        
Stock-based compensation 2,392     2,392    
Common stock dividends $ (5,133)         (5,133)
Dividends declared per common share $ 0.12          
Tax withholding payments on stock-based awards $ (3,930)     (3,930)    
Proceeds from exercise of stock options 27     27    
Other $ (1)     (1)    
Ending balance, common stock, shares issued at Mar. 31, 2022 44,815 44,815        
Ending balance, net of taxes at Mar. 31, 2022 $ 1,648,689 $ 448 $ (138,909) $ 541,737 $ (933) $ 1,246,346
Ending balance, treasury stock, shares at Mar. 31, 2022 5,367   5,367