| Schedule of Marketable Securities | 
 The amortized cost and fair value of marketable securities as of the dates indicated below were as follows: 
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 | 
 | 
 
| As of March 31, 2024 (In thousands) | 
Amortized Cost | 
 | 
Gross Unrealized Gains | 
 | 
Gross Unrealized Losses | 
 | 
Fair Value | 
 
| Corporate debt securities | 
$ | 
767,413  | 
 | 
 | 
$ | 
1,646  | 
 | 
 | 
$ | 
(1,923) | 
 | 
 | 
$ | 
767,136  | 
 | 
 
| Money market funds and other | 
1,091,385  | 
 | 
 | 
—  | 
 | 
 | 
—  | 
 | 
 | 
1,091,385  | 
 | 
 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 
| Municipal securities | 
40,271  | 
 | 
 | 
64  | 
 | 
 | 
(208) | 
 | 
 | 
40,127  | 
 | 
 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 
| U.S. Government agency securities | 
93,382  | 
 | 
 | 
57  | 
 | 
 | 
(231) | 
 | 
 | 
93,208  | 
 | 
 
| U.S. Treasury securities | 
764,664  | 
 | 
 | 
180  | 
 | 
 | 
(3,729) | 
 | 
 | 
761,115  | 
 | 
 
 | 
 | 
 | 
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 | 
 | 
 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 
| Subtotal | 
2,757,115  | 
 | 
 | 
1,947  | 
 | 
 | 
(6,091) | 
 | 
 | 
2,752,971  | 
 | 
 
Add: Time deposits(1)
  | 
1,054,499  | 
 | 
 | 
—  | 
 | 
 | 
—  | 
 | 
 | 
1,054,499  | 
 | 
 
| Less: Cash equivalents | 
1,390,596  | 
 | 
 | 
—  | 
 | 
 | 
(1) | 
 | 
 | 
1,390,595  | 
 | 
 
Marketable securities(2)
  | 
$ | 
2,421,018  | 
 | 
 | 
$ | 
1,947  | 
 | 
 | 
$ | 
(6,090) | 
 | 
 | 
$ | 
2,416,875  | 
 | 
 
 | 
 | 
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 | 
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 | 
 | 
 | 
 
  
 | 
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| 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  | 
 | 
 
 | 
 | 
 | 
 | 
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 | 
 
 | 
 | 
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| Subtotal | 
2,471,232  | 
 | 
 | 
66  | 
 | 
 | 
(16,350) | 
 | 
 | 
2,454,948  | 
 | 
 
Add: Time deposits(1)
  | 
471,439  | 
 | 
 | 
—  | 
 | 
 | 
—  | 
 | 
 | 
471,439  | 
 | 
 
| Less: Cash equivalents | 
1,629,248  | 
 | 
 | 
4  | 
 | 
 | 
—  | 
 | 
 | 
1,629,252  | 
 | 
 
Marketable securities(2)
  | 
$ | 
1,313,423  | 
 | 
 | 
$ | 
62  | 
 | 
 | 
$ | 
(16,350) | 
 | 
 | 
$ | 
1,297,135  | 
 | 
 
  
________________ 
(1) Time deposits excluded from fair value measurements. 
(2) Excludes equity marketable securities. 
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| Schedule of 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.
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 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 
| As of March 31, 2024 | 
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 | 
$ | 
295,694  | 
 | 
 | 
$ | 
(823) | 
 | 
 | 
$ | 
81,327  | 
 | 
 | 
$ | 
(1,100) | 
 | 
 | 
$ | 
377,021  | 
 | 
 | 
$ | 
(1,923) | 
 | 
 
| Municipal securities | 
13,938  | 
 | 
 | 
(91) | 
 | 
 | 
8,088  | 
 | 
 | 
(117) | 
 | 
 | 
22,026  | 
 | 
 | 
(208) | 
 | 
 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 
| U.S. Government agency securities | 
54,739  | 
 | 
 | 
(227) | 
 | 
 | 
2,517  | 
 | 
 | 
(4) | 
 | 
 | 
57,256  | 
 | 
 | 
(231) | 
 | 
 
| U.S. Treasury securities | 
460,112  | 
 | 
 | 
(1,521) | 
 | 
 | 
141,125  | 
 | 
 | 
(2,208) | 
 | 
 | 
601,237  | 
 | 
 | 
(3,729) | 
 | 
 
| Total | 
$ | 
824,483  | 
 | 
 | 
$ | 
(2,662) | 
 | 
 | 
$ | 
233,057  | 
 | 
 | 
$ | 
(3,429) | 
 | 
 | 
$ | 
1,057,540  | 
 | 
 | 
$ | 
(6,091) | 
 | 
 
  
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
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 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 
| 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) | 
 | 
 
  
 | 
| Schedule of Contractual Maturities of Securities | 
 The contractual maturities of securities classified as available-for-sale, regardless of their classification on our Condensed Consolidated Balance Sheets, as of the date indicated below were as follows: 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 
| As of March 31, 2024 (In thousands) | 
Amortized Cost | 
 | 
Fair Value | 
 
| Due within one year | 
$ | 
1,566,845  | 
 | 
 | 
$ | 
1,564,521  | 
 | 
 
| Due after one year through three years | 
854,173  | 
 | 
 | 
852,354  | 
 | 
 
| Total | 
$ | 
2,421,018  | 
 | 
 | 
$ | 
2,416,875  | 
 | 
 
  
 |