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Financial Instruments - Available-for-sale Investments (Details) - USD ($)
$ in Thousands
Jun. 30, 2022
Dec. 31, 2021
Investments, All Other Investments [Abstract]    
Amortized cost $ 62,016 $ 0
Unrealized gains 39 0
Unrealized losses (1,125) 0
Estimated fair value $ 60,930 $ 0