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Investments - Investments in Variable Interest Entities (Detail) - USD ($)	Dec. 31, 2021	Dec. 31, 2020
Variable Interest Entity [Line Items]
Maximum Exposure to Loss	$ 4,500,000	$ 4,800,000
Variable Interest Entities
Variable Interest Entity [Line Items]
Investment	1,159,000	1,258,000
Maximum Exposure to Loss	$ 2,139,000	$ 2,238,000

X

- Definition

Amount of net assets (liabilities).

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- Definition

The reporting entity's maximum amount of exposure to loss as a result of its involvement with the Variable Interest Entity (VIE).

+ References

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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