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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 |  |  |  |

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