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CONDENSED CONSOLIDATED STATEMENT OF CHANGES IN STOCKHOLDERS' EQUITY - USD ($)
shares in Thousands, $ in Thousands
Total
Common Stock
Additional Paid-in Capital
Retained Earnings
Balance at Dec. 31, 2021 $ 4,802,481 $ 1,798 $ 4,260,670 $ 540,013
Balance, shares at Dec. 31, 2021   179,820    
Vesting of restricted stock units   $ 11 (11)  
Vesting of restricted stock units, shares   1,018    
Stock-based compensation expense 8,840   8,840  
Repurchase of common stock [1] $ (285,951) $ (36)   (285,915)
Repurchase of common stock, shares (3,600) (3,593) [1]    
Exercise of stock options $ 421   421  
Exercise of stock options, shares   42    
Shares withheld for restricted stock units vested (29,384) $ (4) (29,380)  
Shares withheld for restricted stock units vested, shares   (401)    
Net Income (Loss) 639,640     639,640
Balance at Mar. 31, 2022 5,136,047 $ 1,769 4,240,540 893,738
Balance, shares at Mar. 31, 2022   176,886    
Balance at Dec. 31, 2021 4,802,481 $ 1,798 4,260,670 540,013
Balance, shares at Dec. 31, 2021   179,820    
Net Income (Loss) 2,364,856      
Balance at Sep. 30, 2022 5,224,603 $ 1,490 4,252,851 970,262
Balance, shares at Sep. 30, 2022   148,994    
Balance at Mar. 31, 2022 5,136,047 $ 1,769 4,240,540 893,738
Balance, shares at Mar. 31, 2022   176,886    
Vesting of restricted stock units   $ 3 (3)  
Vesting of restricted stock units, shares   300    
Stock-based compensation expense 9,316   9,316  
Repurchase of common stock [1] $ (990,739) $ (169)   (990,570)
Repurchase of common stock, shares (16,900) (16,871) [1]    
Exercise of stock options $ 13   13  
Exercise of stock options, shares   1    
Shares withheld for restricted stock units vested (5,493) $ (1) (5,492)  
Shares withheld for restricted stock units vested, shares   (90)    
Net Income (Loss) 987,209     987,209
Balance at Jun. 30, 2022 5,136,353 $ 1,602 4,244,374 890,377
Balance, shares at Jun. 30, 2022   160,226    
Vesting of restricted stock units, shares   6    
Stock-based compensation expense 8,496   8,496  
Repurchase of common stock [1] $ (658,234) $ (112)   (658,122)
Repurchase of common stock, shares (11,200) (11,238) [1]    
Exercise of stock options $ 6   6  
Exercise of stock options, shares   1    
Shares withheld for restricted stock units vested (25)   (25)  
Shares withheld for restricted stock units vested, shares   (1)    
Net Income (Loss) 738,007     738,007
Balance at Sep. 30, 2022 5,224,603 $ 1,490 4,252,851 970,262
Balance, shares at Sep. 30, 2022   148,994    
Balance at Dec. 31, 2022 $ 4,962,566 $ 1,389 4,257,667 703,510
Balance, shares at Dec. 31, 2022 138,864 138,864    
Vesting of restricted stock units   $ 7 (7)  
Vesting of restricted stock units, shares   687    
Stock-based compensation expense $ 11,026   11,026  
Repurchase of common stock [1] $ (627,608) $ (75)   (627,533)
Repurchase of common stock, shares (7,500) (7,546) [1]    
Exercise of stock options $ 315   315  
Exercise of stock options, shares   38    
Shares withheld for restricted stock units vested (22,853) $ (3) (22,850)  
Shares withheld for restricted stock units vested, shares   (276)    
Net Income (Loss) 333,786     333,786
Balance at Mar. 31, 2023 4,657,232 $ 1,318 4,246,151 409,763
Balance, shares at Mar. 31, 2023   131,767    
Balance at Dec. 31, 2022 $ 4,962,566 $ 1,389 4,257,667 703,510
Balance, shares at Dec. 31, 2022 138,864 138,864    
Net Income (Loss) $ 1,189,862      
Balance at Sep. 30, 2023 $ 4,580,685 $ 1,234 4,261,107 318,344
Balance, shares at Sep. 30, 2023 123,400 123,400    
Balance at Mar. 31, 2023 $ 4,657,232 $ 1,318 4,246,151 409,763
Balance, shares at Mar. 31, 2023   131,767    
Vesting of restricted stock units   $ 3 (3)  
Vesting of restricted stock units, shares   319    
Stock-based compensation expense 12,395   12,395  
Repurchase of common stock [1] $ (722,695) $ (70)   (722,625)
Repurchase of common stock, shares (7,000) (6,970) [1]    
Exercise of stock options $ 157   157  
Exercise of stock options, shares   16    
Shares withheld for restricted stock units vested (9,648) $ (1) (9,647)  
Shares withheld for restricted stock units vested, shares   (100)    
Net Income (Loss) 404,619     404,619
Balance at Jun. 30, 2023 4,342,060 $ 1,250 4,249,053 91,757
Balance, shares at Jun. 30, 2023   125,032    
Vesting of restricted stock units, shares   6    
Stock-based compensation expense 12,128   12,128  
Repurchase of common stock [1] $ (224,886) $ (16)   (224,870)
Repurchase of common stock, shares (1,700) (1,651) [1]    
Exercise of stock options $ 134   134  
Exercise of stock options, shares   14    
Shares withheld for restricted stock units vested (208)   (208)  
Shares withheld for restricted stock units vested, shares   (1)    
Net Income (Loss) 451,457     451,457
Balance at Sep. 30, 2023 $ 4,580,685 $ 1,234 $ 4,261,107 $ 318,344
Balance, shares at Sep. 30, 2023 123,400 123,400    
[1] Pursuant to repurchase programs authorized by our board of directors, we repurchased and retired 1.7 million shares, 7.0 million shares, and 7.5 million shares of our common stock for $224.9 million, $722.7 million, and $627.6 million, inclusive of taxes and fees, at an average price of $136.22 per share, $103.68 per share, and $83.17 per share, during the three months ended September 30, 2023, June 30, 2023, and March 31, 2023, respectively. We repurchased and retired 11.2 million shares, 16.9 million shares, and 3.6 million shares of our common stock for $658.2 million, $990.7 million, and $286.0 million, inclusive of fees, at an average price of $58.57 per share, $58.72 per share, and $79.58 per share during the three months ended September 30, 2022, June 30, 2022, and March 31, 2022, respectively.