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v3.22.4

Investment securities (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021
Current investments: |  |
Amortized cost, as adjusted | $ 124,831 |
Non-current investments: |  |
Amortized cost, as adjusted | 39,984 |
Investment securities |  |
Amortized cost, as adjusted | 164,815 |
Gross unrealized holding losses | (326) |
Estimated fair value | 164,489 |
Investment purchased | 163,146 | $ 0
Obligations of governmental agencies |  |
Current investments: |  |
Amortized cost, as adjusted | 124,831 |
Gross unrealized holding losses | (283) |
Estimated fair value | 124,548 |
Non-current investments: |  |
Amortized cost, as adjusted | 39,984 |
Gross unrealized holding losses | (43) |
Estimated fair value | $ 39,941 |

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