Investments (Details) - USD ($) $ in Thousands	6 Months Ended
Jun. 30, 2022	Dec. 31, 2021
Investments
Investments - Available-for-sale	$ 63,867	$ 0
Available-for-sale investments
Adjusted Cost	64,388
Gross Unrealized Gains	6
Gross Unrealized (Losses)	(527)
Estimated Fair Value	63,867
Net unrealized gain (loss) on available-for-sale debt securities	398
Corporate bonds
Available-for-sale investments
Adjusted Cost	31,967
Gross Unrealized Gains	6
Gross Unrealized (Losses)	(410)
Estimated Fair Value	31,563
Commercial paper
Available-for-sale investments
Adjusted Cost	32,421
Gross Unrealized (Losses)	(117)
Estimated Fair Value	$ 32,304

Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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