| Schedule of assets and liabilities measured at fair value on a recurring basis |
The following tables present the Company's financial instruments that are measured at fair value on a recurring basis: | | | | | | | | | | | | | | | | | | December 31, 2013 | | Quoted Market
Prices in Active
Markets for
Identical Assets
(Level 1) | | Significant
Other
Observable
Inputs
(Level 2) | | Significant
Unobservable
Inputs
(Level 3) | | Total
Fair Value
Measurements | | (In thousands) | Assets: | | | | | | | | Cash equivalents: | | | | | | | | Money market funds | $ | 698,307 |
| | $ | — |
| | $ | — |
| | $ | 698,307 |
| Commercial paper | — |
| | 12,000 |
| | — |
| | 12,000 |
| Time deposits | — |
| | 32,325 |
| | — |
| | 32,325 |
| Marketable securities: | | | | | | | | Corporate debt security | — |
| | 1,008 |
| | — |
| | 1,008 |
| Equity securities | 4,996 |
| | — |
| | — |
| | 4,996 |
| Long-term investments: | | | | | | | | Auction rate security | — |
| | — |
| | 8,920 |
| | 8,920 |
| Marketable equity securities | 11,711 |
| | — |
| | — |
| | 11,711 |
| Total | $ | 715,014 |
| | $ | 45,333 |
| | $ | 8,920 |
| | $ | 769,267 |
| | | | | | | | | Liabilities: | | | | | | | | Contingent consideration arrangement | $ | — |
| | $ | — |
| | $ | (43,625 | ) | | $ | (43,625 | ) |
| | | | | | | | | | | | | | | | | | December 31, 2012 | | Quoted Market Prices in Active Markets for Identical Assets (Level 1) | | Significant Other Observable Inputs (Level 2) | | Significant Unobservable Inputs (Level 3) | | Total Fair Value Measurements | | (In thousands) | Assets: | | | | | | | | Cash equivalents: | | | | | | | | Money market funds | $ | 545,290 |
| | $ | — |
| | $ | — |
| | $ | 545,290 |
| Time deposits | — |
| | 11,994 |
| | — |
| | 11,994 |
| Marketable securities: | | | | | | | | Corporate debt securities | — |
| | 13,627 |
| | — |
| | 13,627 |
| Equity security | 6,977 |
| | — |
| | — |
| | 6,977 |
| Long-term investments: | | | | | | | | Auction rate security | — |
| | — |
| | 8,100 |
| | 8,100 |
| Marketable equity securities | 31,244 |
| | — |
| | — |
| | 31,244 |
| Total | $ | 583,511 |
| | $ | 25,621 |
| | $ | 8,100 |
| | $ | 617,232 |
|
|
| Schedule of changes in assets and liabilities measured at fair value on a recurring basis using significant unobservable inputs (Level 3) |
The following table presents the changes in the Company's financial instruments that are measured at fair value on a recurring basis using significant unobservable inputs (Level 3): | | | | | | | | | | | | | | | | | | For the Year Ended | | December 31, 2013 | | December 31, 2012 | | Auction Rate Security | | Contingent Consideration Arrangement | | Auction Rate Security | | Contingent Consideration Arrangement | | (In thousands) | Balance at January 1 | $ | 8,100 |
| | $ | — |
| | $ | 5,870 |
| | $ | (10,000 | ) | Total net gains (losses): | | | | | | | | Included in earnings (unrealized) | — |
| | (343 | ) | | — |
| | — |
| Included in other comprehensive income (loss) | 820 |
| | (2,445 | ) | | 2,230 |
| | — |
| Fair value at date of acquisition | — |
| | (40,837 | ) | | — |
| | — |
| Settlements | — |
| | — |
| | — |
| | 10,000 |
| Balance at December 31 | $ | 8,920 |
| | $ | (43,625 | ) | | $ | 8,100 |
| | $ | — |
|
|
| Fair Value, by Balance Sheet Grouping |
The following table presents the carrying value and the fair value of financial instruments measured at fair value only for disclosure purposes: | | | | | | | | | | | | | | | | | | December 31, 2013 | | December 31, 2012 | | Carrying
Value | | Fair
Value | | Carrying
Value | | Fair
Value | | (In thousands) | Current maturities of long-term debt | $ | — |
| | $ | — |
| | $ | (15,844 | ) | | $ | (15,875 | ) | Long-term debt, net of current maturities | (1,080,000 | ) | | (1,058,396 | ) | | (580,000 | ) | | (581,994 | ) |
|