Other Income, net - Summary of Other Income, net (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2022	Mar. 31, 2021
Other Income and Expenses [Abstract]
Gain on sale and mark-to-market of mutual funds and money market funds	$ 1,236	$ 1,103
Interest and dividend income	1,370	602
Others, net	(195)	(295)
Other income, net	$ 2,411	$ 1,410

Other Miscellaneous Nonoperating Income (Expense)

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- Definition

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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Amount of income (expense) related to nonoperating activities, classified as other.

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