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v3.22.1

Investments (Details) - USD ($) $ in Thousands | 3 Months Ended |
--- | --- | ---
Mar. 31, 2022 | Mar. 31, 2021 | Dec. 31, 2021
Marketable Securities [Line Items] |  |  |
Short-term investments | $ 286,210 |  | $ 234,178
Held-to-maturity debt securities | 8,800 |  | 19,200
Available-for-sale debt securities | 277,400 |  | 215,000
Interest receivable | 500 |  | 100
Unrealized gains on available-for-sale securities | 766 | $ 6 |
Cashable Guaranteed Investment Certificate |  |  |
Marketable Securities [Line Items] |  |  |
Short-term investments | 3,128 |  | 3,140
Corporate Bond |  |  |
Marketable Securities [Line Items] |  |  |
Short-term investments | 60,390 |  | 21,820
Commercial Paper |  |  |
Marketable Securities [Line Items] |  |  |
Short-term investments | 152,295 |  | 206,724
Treasury Bill |  |  |
Marketable Securities [Line Items] |  |  |
Short-term investments | 19,530 |  | 2,494
Treasury Bond |  |  |
Marketable Securities [Line Items] |  |  |
Short-term investments | $ 50,867 |  | $ 0

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