| Schedule of Marketable Securities | The amortized cost and fair value of marketable securities as of the dates indicated below were as follows: 
|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  
| As of June 30, 2023 (In thousands) | Amortized Cost
 |  | Gross Unrealized
 Gains
 |  | Gross Unrealized
 Losses
 |  | Fair Value |  
| Corporate debt securities | $ | 508,511 |  |  | $ | 52 |  |  | $ | (5,913) |  |  | $ | 502,650 |  |  
| Money market funds and other | 1,257,223 |  |  | — |  |  | — |  |  | 1,257,223 |  |  
| Municipal securities | 32,525 |  |  | — |  |  | (737) |  |  | 31,788 |  |  
|  |  |  |  |  |  |  |  |  
| U.S. Government agency securities | 134,486 |  |  | 4 |  |  | (918) |  |  | 133,572 |  |  
| U.S. Treasury securities | 538,487 |  |  | 10 |  |  | (8,782) |  |  | 529,715 |  |  
| 
Equity securities(1)
 | 3,211 |  |  | 14,948 |  |  | — |  |  | 18,159 |  |  
|  |  |  |  |  |  |  |  |  
| Subtotal | 2,474,443 |  |  | 15,014 |  |  | (16,350) |  |  | 2,473,107 |  |  
| 
Add: Time deposits(2)
 | 471,439 |  |  | — |  |  | — |  |  | 471,439 |  |  
| Less: Cash equivalents | 1,629,248 |  |  | 4 |  |  | — |  |  | 1,629,252 |  |  
| Marketable securities | $ | 1,316,634 |  |  | $ | 15,010 |  |  | $ | (16,350) |  |  | $ | 1,315,294 |  |  
|  |  |  |  |  |  |  |  |  
| As of June 30, 2022 (In thousands) | Amortized Cost
 |  | Gross Unrealized
 Gains
 |  | Gross Unrealized
 Losses
 |  | Fair Value |  
| Corporate debt securities | $ | 481,881 |  |  | $ | 3 |  |  | $ | (8,915) |  |  | $ | 472,969 |  |  
| Money market funds and other | 948,027 |  |  | — |  |  | — |  |  | 948,027 |  |  
| Municipal securities | 61,973 |  |  | — |  |  | (1,249) |  |  | 60,724 |  |  
| Sovereign securities | 6,041 |  |  | 2 |  |  | (53) |  |  | 5,990 |  |  
| U.S. Government agency securities | 92,273 |  |  | 26 |  |  | (1,183) |  |  | 91,116 |  |  
| U.S. Treasury securities | 378,871 |  |  | 18 |  |  | (8,378) |  |  | 370,511 |  |  
| 
Equity securities(1)
 | 3,211 |  |  | 7,824 |  |  | — |  |  | 11,035 |  |  
|  |  |  |  |  |  |  |  |  
| Subtotal | 1,972,277 |  |  | 7,873 |  |  | (19,778) |  |  | 1,960,372 |  |  
| 
Add: Time deposits(2)
 | 274,873 |  |  | — |  |  | — |  |  | 274,873 |  |  
| Less: Cash equivalents | 1,112,146 |  |  | — |  |  | (1) |  |  | 1,112,145 |  |  
| Marketable securities | $ | 1,135,004 |  |  | $ | 7,873 |  |  | $ | (19,777) |  |  | $ | 1,123,100 |  | __________________  
(1)Unrealized gains on equity securities included in our portfolio include the initial fair value adjustment recorded upon a security becoming marketable.
(2)Time deposits excluded from fair value measurements. | 
| Debt Securities, Available-for-Sale, Unrealized Loss Position, Fair Value | The following table summarizes the fair value and gross unrealized losses of our investments that were in an unrealized loss position as of the dates indicated below: 
|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  
| As of June 30, 2023 | Less than 12 Months |  | 12 Months or Greater |  | Total |  
| (In thousands) | Fair Value |  | Gross Unrealized
 Losses
 |  | Fair Value |  | Gross Unrealized
 Losses
 |  | Fair Value |  | Gross Unrealized
 Losses
 |  
| Corporate debt securities | $ | 310,613 |  |  | $ | (2,242) |  |  | $ | 161,263 |  |  | $ | (3,671) |  |  | $ | 471,876 |  |  | $ | (5,913) |  |  
| Municipal securities | 9,011 |  |  | (199) |  |  | 17,253 |  |  | (538) |  |  | 26,264 |  |  | (737) |  |  
|  |  |  |  |  |  |  |  |  |  |  |  |  
| U.S. Government agency securities | 80,793 |  |  | (459) |  |  | 36,406 |  |  | (459) |  |  | 117,199 |  |  | (918) |  |  
| U.S. Treasury securities | 288,376 |  |  | (4,117) |  |  | 183,475 |  |  | (4,665) |  |  | 471,851 |  |  | (8,782) |  |  
| Total | $ | 688,793 |  |  | $ | (7,017) |  |  | $ | 398,397 |  |  | $ | (9,333) |  |  | $ | 1,087,190 |  |  | $ | (16,350) |  | 
 
_________________
|  |  |  |  |  |  |  |  |  |  |  |  |  
| As of June 30, 2022 (In thousands) | 
Fair Value(1)
 |  | Gross Unrealized 
Losses(1)
 |  
| Corporate debt securities | $ | 458,699 |  |  | $ | (8,915) |  |  
| Municipal securities | 58,722 |  |  | (1,249) |  |  
| Sovereign securities | 2,963 |  |  | (53) |  |  
| U.S. Government agency securities | 60,285 |  |  | (1,183) |  |  
| U.S. Treasury securities | 336,819 |  |  | (8,378) |  |  
| Total | $ | 917,488 |  |  | $ | (19,778) |  |  
(1)As of June 30, 2022, our investments that were in a continuous loss position of 12 months or more, as well as the unrealized losses on those investments, were immaterial.
 | 
| Schedule of Contractual Maturities of Securities | The contractual maturities of securities classified as available-for-sale, regardless of their classification on our Consolidated Balance Sheets, as of the date indicated below were as follows: 
|  |  |  |  |  |  |  |  |  |  |  |  |  
| As of June 30, 2023 (In thousands) | Amortized Cost
 |  | Fair Value |  
| Due within one year | $ | 704,633 |  |  | $ | 713,189 |  |  
| Due after one year through three years | 612,001 |  |  | 602,105 |  |  
|  | $ | 1,316,634 |  |  | $ | 1,315,294 |  |  |