Restricted Available-for-Sale Investments - Summary of Amortized Cost And Estimated Fair Values of Restricted Available-For-Sale Investments by Contractual Maturity (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Estimated Fair Value
Total restricted available-for-sale investments	$ 22,489	$ 20,416
Restricted Investments
Amortized Cost
Due in one year	4,037
Due within one year to five years	18,931
Total restricted available-for-sale investments	22,968	21,158
Estimated Fair Value
Due in one year	4,020
Due within one year to five years	18,469
Total restricted available-for-sale investments	$ 22,489	$ 20,416

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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