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Summary of Significant Accounting Policies Financial Statements (Details) - USD ($) $ in Millions | Dec. 31, 2023 | Dec. 31, 2022
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Organization, Consolidation and Presentation of Financial Statements [Abstract] |  |
Statutory deposits with state insurance departments | $ 8.6 | $ 9.8

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- Definition The fair value of the asset transferred to a third party to serve as a deposit, which typically serves as a security against failure by the transferor to continue operations, as required by state regulators. + References No definition available. + Details
Name: | cia_StatutoryDepositWithStateInsuranceDepartments
Namespace Prefix: | cia_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- References No definition available. + Details
Name: | us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration