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Financial Instruments (Tables) | 12 Months Ended
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Dec. 31, 2022
Investments, Debt and Equity Securities [Abstract] |
Schedule of Cash Equivalents and Marketable Securities | The following table summarizes, by major security type, our restricted cash, cash equivalents, and short-term investments that are measured at fair value on a recurring basis and are categorized using the fair value hierarchy as of December 31, 2022 (in thousands):
| Amortized Cost |  | Unrealized Gains |  | Unrealized Losses |  | Fair Value
Level 1: |  |  |  |  |  |  |
Restricted cash and cash equivalents: |  |  |  |  |  |  |
Restricted cash | $ | 20,604 |  |  | $ | — |  |  | $ | — |  |  | $ | 20,604 |
Money market funds | 373,619 |  |  | — |  |  | — |  |  | 373,619 |
Time deposits | 412,125 |  |  | — |  |  | — |  |  | 412,125 |
Total restricted cash and cash equivalents | $ | 806,348 |  |  | $ | — |  |  | $ | — |  |  | $ | 806,348 |
Short-term investments: |  |  |  |  |  |  |
Short-term deposits | $ | 101,711 |  |  | $ | — |  |  | $ | — |  |  | $ | 101,711 |
Total short-term investments | $ | 101,711 |  |  | $ | — |  |  | $ | — |  |  | $ | 101,711 |
Cash equivalents and short-term investments consisted of the following as of December 31, 2021 (in thousands):
| Amortized Cost |  | Unrealized Gains |  | Unrealized Losses |  | Fair Value
Level 1: |  |  |  |  |  |  |
Restricted cash and cash equivalents: |  |  |  |  |  |  |
Restricted cash | $ | 10,823 |  |  | $ | — |  |  | $ | — |  |  | $ | 10,823 |
Money market funds | 73,138 |  |  | — |  |  | — |  |  | 73,138 |
Total restricted cash and cash equivalents | $ | 83,961 |  |  | $ | — |  |  | $ | — |  |  | $ | 83,961 |
Level 2: |  |  |  |  |  |  |
Short-term investments: |  |  |  |  |  |  |
Commercial paper | $ | 59,792 |  |  | $ | — |  |  | $ | — |  |  | $ | 59,792 |
Asset-backed securities | 40,965 |  |  | — |  |  | (23) |  |  | 40,942 |
Corporate bonds | 237,735 |  |  | 20 |  |  | (353) |  |  | 237,402 |
U.S. treasury securities | 272,678 |  |  | 1 |  |  | (379) |  |  | 272,300 |
Supranational bonds | 71,121 |  |  | 1 |  |  | (235) |  |  | 70,887 |
Total short-term investments | $ | 682,291 |  |  | $ | 22 |  |  | $ | (990) |  |  | $ | 681,323 |
Schedule of Cash Equivalents | The following table summarizes, by major security type, our restricted cash, cash equivalents, and short-term investments that are measured at fair value on a recurring basis and are categorized using the fair value hierarchy as of December 31, 2022 (in thousands):
| Amortized Cost |  | Unrealized Gains |  | Unrealized Losses |  | Fair Value
Level 1: |  |  |  |  |  |  |
Restricted cash and cash equivalents: |  |  |  |  |  |  |
Restricted cash | $ | 20,604 |  |  | $ | — |  |  | $ | — |  |  | $ | 20,604 |
Money market funds | 373,619 |  |  | — |  |  | — |  |  | 373,619 |
Time deposits | 412,125 |  |  | — |  |  | — |  |  | 412,125 |
Total restricted cash and cash equivalents | $ | 806,348 |  |  | $ | — |  |  | $ | — |  |  | $ | 806,348 |
Short-term investments: |  |  |  |  |  |  |
Short-term deposits | $ | 101,711 |  |  | $ | — |  |  | $ | — |  |  | $ | 101,711 |
Total short-term investments | $ | 101,711 |  |  | $ | — |  |  | $ | — |  |  | $ | 101,711 |
Cash equivalents and short-term investments consisted of the following as of December 31, 2021 (in thousands):
| Amortized Cost |  | Unrealized Gains |  | Unrealized Losses |  | Fair Value
Level 1: |  |  |  |  |  |  |
Restricted cash and cash equivalents: |  |  |  |  |  |  |
Restricted cash | $ | 10,823 |  |  | $ | — |  |  | $ | — |  |  | $ | 10,823 |
Money market funds | 73,138 |  |  | — |  |  | — |  |  | 73,138 |
Total restricted cash and cash equivalents | $ | 83,961 |  |  | $ | — |  |  | $ | — |  |  | $ | 83,961 |
Level 2: |  |  |  |  |  |  |
Short-term investments: |  |  |  |  |  |  |
Commercial paper | $ | 59,792 |  |  | $ | — |  |  | $ | — |  |  | $ | 59,792 |
Asset-backed securities | 40,965 |  |  | — |  |  | (23) |  |  | 40,942 |
Corporate bonds | 237,735 |  |  | 20 |  |  | (353) |  |  | 237,402 |
U.S. treasury securities | 272,678 |  |  | 1 |  |  | (379) |  |  | 272,300 |
Supranational bonds | 71,121 |  |  | 1 |  |  | (235) |  |  | 70,887 |
Total short-term investments | $ | 682,291 |  |  | $ | 22 |  |  | $ | (990) |  |  | $ | 681,323 |

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- Definition Tabular disclosure of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -URI https://asc.fasb.org/topic&trid=2196928 + Details
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