v3.22.1

Investments - Restricted Cash and Cash Equivalents and Investments (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021	Mar. 31, 2021
Restricted Cash and Investments Items [Line Items]
Restricted cash	$ 34,911	$ 39,419	$ 53,038
Restricted investments	433,602	542,728
Total restricted cash and investments	468,513	582,147
Third Party Agreements
Restricted Cash and Investments Items [Line Items]
Restricted cash	28,953	19,177
Restricted investments	58,581	48,845
Amortized cost	58,675	48,860
Related Party Agreements
Restricted Cash and Investments Items [Line Items]
Restricted cash	5,958	20,242
Restricted investments	375,021	493,883
Amortized cost	$ 394,115	$ 493,128

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Amount of cash and cash equivalents restricted as to withdrawal or usage. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
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Cash and investments whose use in whole or in part is restricted for the long-term, generally by contractual agreements or regulatory requirements. For use in an unclassified balance sheet.

+ References

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Investments which are not defined as or included in marketable (debt, equity, or other) securities whose use is restricted in whole or in part, generally by contractual agreements or regulatory requirements. For use in an unclassified balance sheet.

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