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CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($)
shares in Thousands, $ in Thousands
Total
Common Stock [Member]
Additional Paid-In Capital [Member]
Retained Earnings [Member]
Treasury Stock [Member]
Accumulated Other Comprehensive Loss [Member]
Beginning balance at Dec. 31, 2020 $ 232,144 $ 1,617 $ 2,029,465 $ 7,107,989 $ (8,788,984) $ (117,943)
Beginning Balance, shares at Dec. 31, 2020   161,666        
Net income 692,843     692,843    
Other comprehensive income (loss) 6,078         6,078
Issuance of common stock for Employee Stock Purchase Plan 9,578   9,578      
Issuance of common stock for Employee Stock Purchase Plan, shares   40        
Issuance of common stock for stock options exercised 46,065 $ 3 46,062      
Issuance of common stock for stock options exercised, shares   282        
Treasury stock (648,930)       (648,930)  
Stock-based compensation 29,776 $ 1 29,775      
Stock-based compensation, shares   96        
Ending balance at Dec. 31, 2021 367,554 $ 1,621 2,114,880 7,800,832 (9,437,914) (111,865)
Ending Balance, shares at Dec. 31, 2021   162,084        
Net income 707,755     707,755    
Other comprehensive income (loss) (29,707)         (29,707)
Issuance of common stock for Employee Stock Purchase Plan 10,952   10,952      
Issuance of common stock for Employee Stock Purchase Plan, shares   37        
Issuance of common stock for stock options exercised 31,678 $ 2 31,676      
Issuance of common stock for stock options exercised, shares   192        
Treasury stock (626,061)       (626,061)  
Stock-based compensation 42,317 $ 1 42,316      
Stock-based compensation, shares   112        
Ending balance at Dec. 31, 2022 504,488 $ 1,624 2,199,824 8,508,587 (10,063,975) (141,572)
Ending Balance, shares at Dec. 31, 2022   162,425        
Net income 642,234     642,234    
Other comprehensive income (loss) 7,452         7,452
Issuance of common stock for Employee Stock Purchase Plan 11,124   11,124      
Issuance of common stock for Employee Stock Purchase Plan, shares   41        
Issuance of common stock for stock options exercised 17,636 $ 1 17,635      
Issuance of common stock for stock options exercised, shares   100        
Treasury stock (70,277)       (70,277)  
Stock-based compensation 37,684 $ 2 37,682      
Stock-based compensation, shares   143        
Ending balance at Dec. 31, 2023 $ 1,150,341 $ 1,627 $ 2,266,265 $ 9,150,821 $ (10,134,252) $ (134,120)
Ending Balance, shares at Dec. 31, 2023   162,709