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Consolidated Statements of Stockholders' Equity - USD ($)
shares in Thousands, $ in Thousands
Total
Common Stock
Treasury Stock
Additional Paid-In Capital
Accumulated Other Comprehensive Loss
Retained Earnings
Beginning balance (in shares) at Dec. 31, 2021   44,698        
Beginning balance at Dec. 31, 2021 $ 1,352,619 $ 447 $ (138,909) $ 543,249 $ (1,047) $ 948,879
Beginning balance (in shares) at Dec. 31, 2021     5,367      
Net income 302,600         302,600
Other comprehensive income 114       114  
Common stock issued (in shares)   117        
Common stock issued 1 $ 1        
Stock-based compensation 2,392     2,392    
Common stock dividends (5,133)         (5,133)
Tax withholding payments on stock-based awards (3,930)     (3,930)    
Proceeds from exercise of stock options 27     27    
Other (1)     (1)    
Ending balance (in shares) at Mar. 31, 2022   44,815        
Ending balance at Mar. 31, 2022 1,648,689 $ 448 $ (138,909) 541,737 (933) 1,246,346
Ending balance (in shares) at Mar. 31, 2022     5,367      
Beginning balance (in shares) at Dec. 31, 2021   44,698        
Beginning balance at Dec. 31, 2021 1,352,619 $ 447 $ (138,909) 543,249 (1,047) 948,879
Beginning balance (in shares) at Dec. 31, 2021     5,367      
Net income 740,298          
Other comprehensive income 145          
Ending balance (in shares) at Sep. 30, 2022   44,815        
Ending balance at Sep. 30, 2022 1,983,072 $ 448 $ (138,909) 548,035 (902) 1,574,400
Ending balance (in shares) at Sep. 30, 2022     5,367      
Beginning balance (in shares) at Mar. 31, 2022   44,815        
Beginning balance at Mar. 31, 2022 1,648,689 $ 448 $ (138,909) 541,737 (933) 1,246,346
Beginning balance (in shares) at Mar. 31, 2022     5,367      
Net income 218,111         218,111
Other comprehensive income 16       16  
Stock-based compensation 3,011     3,011    
Common stock dividends (104,842)         (104,842)
Ending balance (in shares) at Jun. 30, 2022   44,815        
Ending balance at Jun. 30, 2022 1,764,985 $ 448 $ (138,909) 544,748 (917) 1,359,615
Ending balance (in shares) at Jun. 30, 2022     5,367      
Net income 219,587         219,587
Other comprehensive income 15       15  
Stock-based compensation 3,287     3,287    
Common stock dividends (4,802)         (4,802)
Ending balance (in shares) at Sep. 30, 2022   44,815        
Ending balance at Sep. 30, 2022 $ 1,983,072 $ 448 $ (138,909) 548,035 (902) 1,574,400
Ending balance (in shares) at Sep. 30, 2022     5,367      
Beginning balance (in shares) at Dec. 31, 2022 44,827 44,827        
Beginning balance at Dec. 31, 2022 $ 2,057,975 $ 448 $ (138,909) 551,215 (520) 1,645,741
Beginning balance (in shares) at Dec. 31, 2022 5,367   5,367      
Net income $ 96,733         96,733
Other comprehensive income 6       6  
Common stock issued (in shares)   156        
Common stock issued 2 $ 2        
Treasury stock purchased (in shares)     25      
Treasury stock purchased (1,482)   $ (1,482)      
Stock-based compensation 3,324     3,324    
Common stock dividends (6,110)         (6,110)
Tax withholding payments on stock-based awards (5,926)     (5,926)    
Other (2)     (2)    
Ending balance (in shares) at Mar. 31, 2023   44,983        
Ending balance at Mar. 31, 2023 $ 2,144,520 $ 450 $ (140,391) 548,611 (514) 1,736,364
Ending balance (in shares) at Mar. 31, 2023     5,392      
Beginning balance (in shares) at Dec. 31, 2022 44,827 44,827        
Beginning balance at Dec. 31, 2022 $ 2,057,975 $ 448 $ (138,909) 551,215 (520) 1,645,741
Beginning balance (in shares) at Dec. 31, 2022 5,367   5,367      
Net income $ 386,121          
Other comprehensive income $ 19          
Ending balance (in shares) at Sep. 30, 2023 44,983 44,983        
Ending balance at Sep. 30, 2023 $ 2,307,595 $ 450 $ (140,448) 556,805 (501) 1,891,289
Ending balance (in shares) at Sep. 30, 2023 5,393   5,393      
Beginning balance (in shares) at Mar. 31, 2023   44,983        
Beginning balance at Mar. 31, 2023 $ 2,144,520 $ 450 $ (140,391) 548,611 (514) 1,736,364
Beginning balance (in shares) at Mar. 31, 2023     5,392      
Net income 146,320         146,320
Other comprehensive income 7       7  
Treasury stock purchased (in shares)     1      
Treasury stock purchased (57)   $ (57)      
Stock-based compensation 4,194     4,194    
Common stock dividends (126,460)         (126,460)
Ending balance (in shares) at Jun. 30, 2023   44,983        
Ending balance at Jun. 30, 2023 2,168,524 $ 450 $ (140,448) 552,805 (507) 1,756,224
Ending balance (in shares) at Jun. 30, 2023     5,393      
Net income 143,068         143,068
Other comprehensive income 6       6  
Stock-based compensation 4,000     4,000    
Common stock dividends $ (8,003)         (8,003)
Ending balance (in shares) at Sep. 30, 2023 44,983 44,983        
Ending balance at Sep. 30, 2023 $ 2,307,595 $ 450 $ (140,448) $ 556,805 $ (501) $ 1,891,289
Ending balance (in shares) at Sep. 30, 2023 5,393   5,393