| Company's recurring financial assets and liabilities subject to fair value measurements |
The Company's recurring financial assets and liabilities subject to fair value measurements are as follows:
| | | | | | | | | | | | | | | | | | | | Fair Value Measurements as of March 31, 2014 | Description | | Total | | Quoted Prices in Active Markets for Identical Assets (Level 1) | |
Significant Other Observable Inputs (Level 2) | |
Significant Unobservable Inputs (Level 3) | Assets: | | | | | | | | | Money market funds | | $ | 130,030 |
| | $ | 130,030 |
| | $ | — |
| | $ | — |
| Certificates of deposit | | 3,350 |
| | — |
| | 3,350 |
| | — |
| Bonds | | 5,237 |
| | 5,237 |
| | — |
| | — |
| Investment securities available for sale | |
| | | | | | — |
| Equity securities | | 124,391 |
| | 123,514 |
| | 877 |
| | — |
| Fixed income securities | | | | | | | | | U.S. Government securities | | 14,970 |
| | — |
| | 14,970 |
| | — |
| Corporate securities | | 30,304 |
| | 6,975 |
| | 23,329 |
| | — |
| U.S. mortgage backed securities | | 219 |
| | — |
| | 219 |
| | — |
| Commercial mortgage-backed securities | | 6,705 |
| | — |
| | 6,705 |
| | — |
| U.S. asset backed securities | | 3,995 |
| | — |
| | 3,995 |
| | — |
| Index-linked U.S. bonds | | 252 |
| | — |
| | 252 |
| | — |
| Total fixed income securities | | 56,445 |
| | 6,975 |
| | 49,470 |
| | — |
| | | | | | | | | | Warrants | | 1,602 |
| | — |
| | — |
| | 1,602 |
| Total | | $ | 321,055 |
| | $ | 265,756 |
| | $ | 53,697 |
| | $ | 1,602 |
| | | | | | | | | | Liabilities: | | | | | | | | | Fair value of derivatives embedded within convertible debt | | $ | 193,975 |
| | $ | — |
| | $ | — |
| | $ | 193,975 |
| | | | | | | | | |
| | (1) | Warrants include 1,000,000 of LTS Warrants received on November 4, 2011 which were carried at $1,602 as of March 31, 2014 and are included in "Other assets". The Company recognized loss of $157 for the three months ended March 31, 2014 related to the change in fair value of the Warrants. |
| | | | | | | | | | | | | | | | | | | | Fair Value Measurements as of December 31, 2013 | Description | | Total | | Quoted Prices in Active Markets for Identical Assets (Level 1) | |
Significant Other Observable Inputs (Level 2) | |
Significant Unobservable Inputs (Level 3) | Assets: | | | | | | | | | Money market funds | | $ | 130,733 |
| | $ | 130,733 |
| | $ | — |
| | $ | — |
| Certificates of deposit | | 2,961 |
| | — |
| | 2,961 |
| | — |
| Bonds | | 5,337 |
| | 5,337 |
| | — |
| | — |
| Investment securities available for sale | | | | | | | | — |
| Equity securities | | 118,474 |
| | 117,737 |
| | 737 |
| | — |
| Fixed income securities | | | | | | | | — |
| U.S. Government securities | | 13,990 |
| | — |
| | 13,990 |
| | — |
| Corporate securities | | 29,923 |
| | 6,497 |
| | 23,426 |
| | — |
| U.S. mortgage backed securities | | 495 |
| | — |
| | 495 |
| | — |
| Commercial mortgage-backed securities | | 6,822 |
| | — |
| | 6,822 |
| | — |
| U.S. asset backed securities | | 2,081 |
| | — |
| | 2,081 |
| | — |
| Index-linked U.S. bonds | | 749 |
| | — |
| | 749 |
| | — |
| Total fixed income securities | | 54,060 |
| | 6,497 |
| | 47,563 |
| | — |
| | | | | | | | | | Warrants (1) | | 1,935 |
| | — |
| | — |
| | 1,935 |
| Total | | $ | 313,500 |
| | $ | 260,304 |
| | $ | 51,261 |
| | $ | 1,935 |
| | | | | | | | | | Liabilities: | | | | | | | | | | | | | | | | | | Fair value of derivatives embedded within convertible debt | | $ | 112,062 |
| | $ | — |
| | $ | — |
| | $ | 112,062 |
| | | | | | | | | |
| | (1) | Warrants include 1,000,000 of LTS Warrants received on November 4, 2011 which were carried at $1,758 as of December 31, 2013 and are included in "Other assets". The Company recognized income of $65 for the three months ended March 31, 2013 related to the change in fair value of the Warrants. |
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