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Insurance Operations - Assets Held by Insurance Regulators (Detail) - USD ($) $ in Thousands | Jun. 30, 2024 | Dec. 31, 2023
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Restricted cash and cash equivalents |  |
Statutory Accounting Practices [Line Items] |  |
Assets held by insurance regulators | $ 2,635 | $ 2,635
Restricted cash and cash equivalents | Florida |  |
Statutory Accounting Practices [Line Items] |  |
Assets held by insurance regulators | 1,800 | 1,800
Restricted cash and cash equivalents | Georgia |  |
Statutory Accounting Practices [Line Items] |  |
Assets held by insurance regulators | 35 | 35
Restricted cash and cash equivalents | North Carolina |  |
Statutory Accounting Practices [Line Items] |  |
Assets held by insurance regulators | 800 | 800
Investments |  |
Statutory Accounting Practices [Line Items] |  |
Assets held by insurance regulators | 3,418 | 3,329
Investments | Hawaii |  |
Statutory Accounting Practices [Line Items] |  |
Assets held by insurance regulators | 2,842 | 2,762
Investments | Massachusetts |  |
Statutory Accounting Practices [Line Items] |  |
Assets held by insurance regulators | 123 | 121
Investments | South Carolina |  |
Statutory Accounting Practices [Line Items] |  |
Assets held by insurance regulators | 133 | 131
Investments | Virginia |  |
Statutory Accounting Practices [Line Items] |  |
Assets held by insurance regulators | $ 319 | $ 315

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