| Fair Value, Assets and Liabilities Measured on Recurring Basis |
The following table summarizes financial assets and financial liabilities that the Company measures at fair value on a recurring basis as of March 31, 2015 (in thousands): | | | | | | | | | | | | | | | | | | 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 (i) | $ | 1,369 |
| | $ | 1,369 |
| | $ | — |
| | $ | — |
| Time deposits (ii) | 21,773 |
| | 21,773 |
| | — |
| | — |
| Marketable debt securities (ii) | 223,705 |
| | — |
| | 223,705 |
| | — |
| Total money market funds, time deposits, and marketable debt securities | 246,847 |
| | 23,142 |
| | 223,705 |
| | — |
| Foreign currency derivatives (iii) | 555 |
| | — |
| | 555 |
| | — |
| Total assets | $ | 247,402 |
| | $ | 23,142 |
| | $ | 224,260 |
| | $ | — |
| Liabilities: | | | | | | | | Foreign currency derivatives (iv) | $ | 204 |
| | $ | — |
| | $ | 204 |
| | $ | — |
| Total liabilities | $ | 204 |
| | $ | — |
| | $ | 204 |
| | $ | — |
|
The following table summarizes financial assets and financial liabilities that the Company measures at fair value on a recurring basis as of December 31, 2014 (in thousands): | | | | | | | | | | | | | | | | | | 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 (i) | $ | 15,344 |
| | $ | 15,344 |
| | $ | — |
| | $ | — |
| Time deposits (ii) | 26,395 |
| | 26,395 |
| | — |
| | — |
| Marketable debt securities (ii) | 326,735 |
| | — |
| | 326,735 |
| | — |
| Total money market funds, time deposits, and marketable debt securities | 368,474 |
| | 41,739 |
| | 326,735 |
| | — |
| Foreign currency derivatives (iii) | 310 |
| | — |
| | 310 |
| | — |
| Total assets | $ | 368,784 |
| | $ | 41,739 |
| | $ | 327,045 |
| | $ | — |
| Liabilities: | |
| | |
| | |
| | |
| Foreign currency derivatives (v) | $ | 915 |
| | $ | — |
| | $ | 915 |
| | $ | — |
| Total liabilities | $ | 915 |
| | $ | — |
| | $ | 915 |
| | $ | — |
|
____________________ | | (i) | Included in cash and cash equivalents on the condensed consolidated balance sheets. |
| | (ii) | Included in either cash and cash equivalents or short-term investments on the condensed consolidated balance sheets. |
| | (iii) | Included in prepaid expenses and other current assets on the condensed consolidated balance sheets. |
| | (iv) | Included in accrued liabilities on the consolidated balance sheets. |
| | (v) | Included in accrued liabilities and other liabilities on the consolidated balance sheets. |
|