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v3.22.1

Cash Equivalents and Marketable Securities (Tables) | 3 Months Ended
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Mar. 31, 2022
Cash Equivalents and Marketable Securities |
Schedule of cash equivalents and marketable securities | Cash equivalents and marketable securities consisted of the following (in thousands):
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | March 31, 2022
​ | ​ | Amortized | ​ | Gross Unrealized | ​ |
​ |  | Cost |  | Gains |  | Losses |  | Fair Value
Money market funds | ​ | $ | 35,422 | ​ | $ | — | ​ | $ | — | ​ | $ | 35,422
Commercial paper | ​ |  | 138,123 | ​ | ​ | 1 | ​ | ​ | (40) | ​ |  | 138,084
Corporate debt securities | ​ | ​ | 45,455 | ​ | ​ | — | ​ | ​ | (105) | ​ | ​ | 45,350
U.S. Treasury and agency securities | ​ | ​ | 77,915 | ​ | ​ | 1 | ​ | ​ | (268) | ​ | ​ | 77,648
Supranational and sovereign government securities | ​ |  | 3,000 | ​ | ​ | — | ​ | ​ | — | ​ |  | 3,000
Total cash equivalents and marketable securities | ​ | $ | 299,915 | ​ | $ | 2 |  | $ | (413) | ​ | $ | 299,504
Classified as: | ​ | ​ | ​ |  | ​ | ​ |  | ​ | ​ |  | ​ | ​
Cash equivalents | ​ | ​ | ​ |  | ​ | ​ |  | ​ | ​ |  | $ | 92,692
Marketable securities - current | ​ | ​ | ​ |  | ​ | ​ |  | ​ | ​ |  |  | 206,812
Total cash equivalents and marketable securities | ​ | ​ | ​ |  | ​ | ​ |  | ​ | ​ |  | $ | 299,504
​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | December 31, 2021
​ | ​ | Amortized | ​ | Gross Unrealized | ​ |
​ |  | Cost |  | Gains |  | Losses |  | Fair Value
Money market funds | ​ | $ | 39,854 | ​ | $ | — |  | $ | — | ​ | $ | 39,854
Commercial paper | ​ |  | 157,157 | ​ |  | — |  |  | (16) | ​ |  | 157,141
Corporate debt securities | ​ |  | 75,598 | ​ |  | — |  |  | (50) | ​ |  | 75,548
U.S. Treasury and agency securities | ​ | ​ | 40,093 | ​ | ​ | — | ​ | ​ | (76) | ​ | ​ | 40,017
Supranational and sovereign government securities | ​ |  | 6,011 | ​ |  | — |  |  | (1) | ​ |  | 6,010
Total cash equivalents and marketable securities | ​ | $ | 318,713 | ​ | $ | — |  | $ | (143) | ​ | $ | 318,570
Classified as: | ​ | ​ | ​ |  | ​ | ​ |  | ​ | ​ |  | ​ | ​
Cash equivalents | ​ | ​ | ​ |  | ​ | ​ |  | ​ | ​ |  | $ | 115,335
Marketable securities - current | ​ | ​ | ​ |  | ​ | ​ |  | ​ | ​ |  |  | 203,235
Total cash equivalents and marketable securities | ​ | ​ | ​ |  | ​ | ​ |  | ​ | ​ |  | $ | 318,570

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