| Schedule of Financial Assets and Liabilities Measured at Fair Value on a Recurring Basis | 
 Financial assets (excluding cash held in operating accounts and time deposits) and liabilities measured at fair value on a recurring basis, as of the dates indicated below, were presented on our Condensed Consolidated Balance Sheets as follows: 
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Quoted Prices in Active Markets for Identical Assets | 
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Significant Other Observable Inputs | 
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| As of September 30, 2024 (In thousands) | 
Total | 
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 (Level 1) | 
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 (Level 2) | 
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| Assets | 
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| Cash equivalents: | 
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| Money market funds and other | 
$ | 
1,558,751  | 
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$ | 
1,558,751  | 
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$ | 
—  | 
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| U.S. Treasury securities | 
6,720  | 
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—  | 
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6,720  | 
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| Marketable securities: | 
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| Corporate debt securities | 
835,105  | 
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—  | 
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835,105  | 
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| Municipal securities | 
43,673  | 
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—  | 
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43,673  | 
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| U.S. Government agency securities | 
97,887  | 
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97,887  | 
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—  | 
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| U.S. Treasury securities | 
729,376  | 
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498,241  | 
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231,135  | 
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| Equity securities | 
19,654  | 
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19,654  | 
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—  | 
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Total cash equivalents and marketable securities(1)
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3,291,166  | 
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2,174,533  | 
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1,116,633  | 
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| Other current assets: | 
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| Derivative assets | 
25,314  | 
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—  | 
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25,314  | 
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| Other non-current assets: | 
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| Executive Deferred Savings Plan | 
318,855  | 
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286,149  | 
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32,706  | 
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Total financial assets(1)
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$ | 
3,635,335  | 
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$ | 
2,460,682  | 
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$ | 
1,174,653  | 
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| Liabilities | 
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| Derivative liabilities | 
$ | 
(31,518) | 
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$ | 
—  | 
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$ | 
(31,518) | 
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| Total financial liabilities | 
$ | 
(31,518) | 
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$ | 
—  | 
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$ | 
(31,518) | 
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(1) Excludes cash of $326.9 million held in operating accounts and time deposits of $1.01 billion (of which $84.9 million were cash equivalents) as of September 30, 2024. 
 
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Quoted Prices in Active Markets for Identical Assets | 
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Significant Other Observable Inputs | 
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| As of June 30, 2024 (In thousands) | 
Total | 
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(Level 1) | 
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(Level 2) | 
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| Assets | 
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| Cash equivalents: | 
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| Corporate debt securities | 
$ | 
2,312  | 
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$ | 
—  | 
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$ | 
2,312  | 
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| Money market funds and other | 
1,585,832  | 
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1,585,832  | 
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—  | 
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| U.S. Treasury securities | 
35,158  | 
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—  | 
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35,158  | 
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| Marketable securities: | 
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| Corporate debt securities | 
771,920  | 
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—  | 
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771,920  | 
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| Municipal securities | 
41,159  | 
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—  | 
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41,159  | 
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| U.S. Government agency securities | 
105,874  | 
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105,874  | 
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—  | 
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| U.S. Treasury securities | 
716,148  | 
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476,230  | 
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239,918  | 
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| Equity securities | 
25,566  | 
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25,566  | 
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—  | 
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Total cash equivalents and marketable securities(1)
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3,283,969  | 
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2,193,502  | 
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1,090,467  | 
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| Other current assets: | 
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| Derivative assets | 
36,503  | 
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—  | 
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36,503  | 
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| Other non-current assets: | 
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| Executive Deferred Savings Plan | 
303,365  | 
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272,816  | 
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30,549  | 
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Total financial assets(1)
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$ | 
3,623,837  | 
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$ | 
2,466,318  | 
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$ | 
1,157,519  | 
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| Liabilities | 
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| Derivative liabilities | 
$ | 
(15,683) | 
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$ | 
—  | 
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$ | 
(15,683) | 
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| Total financial liabilities | 
$ | 
(15,683) | 
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$ | 
—  | 
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$ | 
(15,683) | 
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________________ 
(1) Excludes cash of $287.6 million held in operating accounts and time deposits of $932.4 million (of which $66.2 million were cash equivalents) as of June 30, 2024. 
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