Investments (Details) - USD ($) $ in Thousands	9 Months Ended
Sep. 30, 2022	Dec. 31, 2021
Investments
Investments - Available-for-sale	$ 68,403	$ 0
Available-for-sale investments
Adjusted Cost	68,951
Gross Unrealized Gains	11
Gross Unrealized (Losses)	(559)
Estimated Fair Value	68,403
Net unrealized gain (loss) on available-for-sale debt securities	417
Corporate bonds
Available-for-sale investments
Adjusted Cost	34,120
Gross Unrealized Gains	11
Gross Unrealized (Losses)	(473)
Estimated Fair Value	33,658
Commercial paper
Available-for-sale investments
Adjusted Cost	34,831
Gross Unrealized (Losses)	(86)
Estimated Fair Value	$ 34,745

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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