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Fair Value Measurements (Tables) | 6 Months Ended
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Jun. 30, 2022
Fair Value Disclosures [Abstract] |
Summary of Financial Assets and Liabilities Measured at Fair Value on Recurring Basis | The following tables present information about the Company’s financial assets and liabilities that have been measured at fair value on a recurring basis as of June 30, 2022 and December 31, 2021, and indicate the fair value hierarchy of the valuation inputs utilized to determine such fair value (in thousands):
| Fair Value Measurement as of June 30, 2022
| Level 1 |  | Level 2 |  | Level 3 |  | Total
Financial Assets: |  |  |  |  |  |  |
Cash equivalents: |  |  |  |  |  |  |
Money market funds | $ | 182,572 |  |  | $ | — |  |  | $ | — |  |  | $ | 182,572 |
Commercial paper | — |  |  | 25,314 |  |  | — |  |  | 25,314 |
Corporate debt securities | — |  |  | 790 |  |  | — |  |  | 790 |
Marketable Securities: |  |  |  |  |  |  |
Corporate debt securities | — |  |  | 985,985 |  |  | — |  |  | 985,985 |
Certificates of deposit | — |  |  | 72,679 |  |  | — |  |  | 72,679 |
U.S. government treasury securities | — |  |  | 178,179 |  |  | — |  |  | 178,179 |
Commercial paper | — |  |  | 219,879 |  |  | — |  |  | 219,879 |
Non-U.S. government treasury securities | — |  |  | 7,959 |  |  | — |  |  | 7,959 |
Total financial assets | $ | 182,572 |  |  | $ | 1,490,785 |  |  | $ | — |  |  | $ | 1,673,357 |
| Fair Value Measurement as of December 31, 2021
| Level 1 |  | Level 2 |  | Level 3 |  | Total
Financial Assets: |  |  |  |  |  |  |
Cash equivalents: |  |  |  |  |  |  |
Money market funds | $ | 241,571 |  |  | $ | — |  |  | $ | — |  |  | $ | 241,571 |
Marketable Securities: |  |  |  |  |  |  |
Corporate debt securities | — |  |  | 1,032,052 |  |  | — |  |  | 1,032,052 |
Certificates of deposit | — |  |  | 14,569 |  |  | — |  |  | 14,569 |
U.S. government treasury securities | — |  |  | 77,442 |  |  | — |  |  | 77,442 |
Commercial paper | — |  |  | 151,356 |  |  | — |  |  | 151,356 |
Non-U.S. government treasury securities | — |  |  | 8,054 |  |  | — |  |  | 8,054 |
Total financial assets | $ | 241,571 |  |  | $ | 1,283,473 |  |  | $ | — |  |  | $ | 1,525,044 |

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- Definition Tabular disclosure of assets, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, by class that are measured at fair value on a recurring basis. The disclosures contemplated herein include the fair value measurements at the reporting date by the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258 + Details
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