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Fair Values of Financial Instruments - Summary of Carrying or Reported Values and Corresponding Fair Values for Financial Instruments (Detail) - USD ($) $ in Thousands | Dec. 31, 2022 | Dec. 31, 2021
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Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Fixed maturity securities--held-to-maturity | $ 468,144 | $ 575,850
Fixed maturity securities--available-for-sale | 321,121 | 341,769
Equity securities | 62,058 | 64,140
Short-term investments | 14,120 | 57,431
Carrying Amount [Member] |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Fixed maturity securities--held-to-maturity | 491,688 | 549,231
Fixed maturity securities--available-for-sale | 321,121 | 341,769
Equity securities | 62,058 | 64,140
Short-term investments | 14,120 | 57,431
Cash and cash equivalents | 61,469 | 70,722
Fair Value [Member] |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Fixed maturity securities--held-to-maturity | 468,144 | 575,850
Fixed maturity securities--available-for-sale | 321,121 | 341,769
Equity securities | 62,058 | 64,140
Short-term investments | 14,120 | 57,431
Cash and cash equivalents | $ 61,469 | $ 70,722

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- Definition Fair value portion of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes 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 No definition available. + Details
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