Supplemental Balance Sheet and Income Statement Information - Investment income (loss) (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2023	Mar. 31, 2022
Investment income (loss)
Interest and dividend income	$ 9,514	$ 397
Gains (losses) on marketable securities	352	(234)
Investment income (loss)	$ 9,866	$ 163

Amount of realized and unrealized gain (loss) on investment.

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Amount before accretion (amortization) of purchase discount (premium) of interest income and dividend income on nonoperating securities.

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The aggregate amount of income from investments (for example, dividends) not considered a component of the entity's core operations.

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