| Summary 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, 2013 (In thousands) | Amortized Cost |   | Gross Unrealized Gains |   | Gross Unrealized Losses |   | Fair Value |  
| U.S. Treasury securities | $ | 93,940 | 
 |   | $ | 53 | 
 |   | $ | (206 | ) |   | $ | 93,787 | 
 |  
| U.S. Government agency securities | 598,471 | 
 |   | 569 | 
 |   | (1,009 | ) |   | 598,031 | 
 |  
| Municipal securities | 103,686 | 
 |   | 71 | 
 |   | (302 | ) |   | 103,455 | 
 |  
| Corporate debt securities | 1,103,438 | 
 |   | 2,353 | 
 |   | (2,466 | ) |   | 1,103,325 | 
 |  
| Money market and other | 817,608 | 
 |   | — | 
 |   | — | 
 |   | 817,608 | 
 |  
| Sovereign securities | 33,799 | 
 |   | 25 | 
 |   | (19 | ) |   | 33,805 | 
 |  
| Subtotal | 2,750,942 | 
 |   | 3,071 | 
 |   | (4,002 | ) |   | 2,750,011 | 
 |  
| 
Add: Time deposits(1)
 | 43,413 | 
 |   | — | 
 |   | — | 
 |   | 43,413 | 
 |  
| Less: Cash equivalents | 859,933 | 
 |   | — | 
 |   | — | 
 |   | 859,933 | 
 |  
| Marketable securities | $ | 1,934,422 | 
 |   | $ | 3,071 | 
 |   | $ | (4,002 | ) |   | $ | 1,933,491 | 
 |  
|   |   |   |   |   |   |   |   |  
| As of June 30, 2012 (In thousands) | Amortized Cost |   | Gross Unrealized Gains |   | Gross Unrealized Losses |   | Fair Value |  
| U.S. Treasury securities | $ | 91,387 | 
 |   | $ | 67 | 
 |   | $ | (16 | ) |   | $ | 91,438 | 
 |  
| U.S. Government agency securities | 633,587 | 
 |   | 981 | 
 |   | (76 | ) |   | 634,492 | 
 |  
| Municipal securities | 66,538 | 
 |   | 107 | 
 |   | (102 | ) |   | 66,543 | 
 |  
| Corporate debt securities | 914,134 | 
 |   | 3,826 | 
 |   | (568 | ) |   | 917,392 | 
 |  
| Money market and other | 607,038 | 
 |   | — | 
 |   | — | 
 |   | 607,038 | 
 |  
| Sovereign securities | 29,056 | 
 |   | 89 | 
 |   | — | 
 |   | 29,145 | 
 |  
| Equity securities | 10 | 
 |   | — | 
 |   | — | 
 |   | 10 | 
 |  
| Subtotal | 2,341,750 | 
 |   | 5,070 | 
 |   | (762 | ) |   | 2,346,058 | 
 |  
| 
Add: Time deposits(1)
 | 62,431 | 
 |   | — | 
 |   | — | 
 |   | 62,431 | 
 |  
| Less: Cash equivalents | 625,339 | 
 |   | — | 
 |   | — | 
 |   | 625,339 | 
 |  
| Marketable securities | $ | 1,778,842 | 
 |   | $ | 5,070 | 
 |   | $ | (762 | ) |   | $ | 1,783,150 | 
 | __________________  
(1) Time deposits excluded from fair value measurements. 
 | 
      
        | Investments with Gross Unrealized Losses | 
The following table summarizes the fair value and gross unrealized losses of the Company's investments that were in an unrealized loss position as of the date indicated below: 
|  |  
|  |  |  |  |  |  |  |  |  
| As of June 30, 2013 (In thousands) | Fair Value |   | Gross Unrealized 
Losses(1)
 |  
| U.S. Treasury securities | $ | 50,475 | 
 |   | $ | (206 | ) |  
| U.S. Government agency securities | 323,053 | 
 |   | (1,009 | ) |  
| Municipal securities | 56,919 | 
 |   | (302 | ) |  
| Corporate debt securities | 595,513 | 
 |   | (2,466 | ) |  
| Sovereign securities | 21,088 | 
 |   | (19 | ) |  
| Total | $ | 1,047,048 | 
 |   | $ | (4,002 | ) |  __________________  
|  |  |  
| (1) | 
As of June 30, 2013, the amount of total gross unrealized losses that had been in a continuous loss position for 12 months or more was immaterial.
 |  | 
      
        | Contractual Maturities of Securities | 
The contractual maturities of securities classified as available-for-sale, regardless of their classification on the Company's Consolidated Balance Sheet, as of the date indicated below were as follows:   
|  |  
|  |  |  |  |  |  |  |  |  
| As of June 30, 2013 (In thousands) | Amortized Cost |   | Fair Value |  
| Due within one year | $ | 457,403 | 
 |   | $ | 458,051 | 
 |  
| Due after one year through three years | 1,477,019 | 
 |   | 1,475,440 | 
 |  
|   | $ | 1,934,422 | 
 |   | $ | 1,933,491 | 
 |  |