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Contracts Secured by Insurance (Narrative) (Details) - USD ($) $ in Millions | Dec. 31, 2017 | Dec. 31, 2016
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Contracts Secured by Insurance [Abstract] |  |
Preneed funeral contracts secured by insurance | $ 371.5 | $ 357.4

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- Definition CONTRACTS SECURED BY INSURANCE + References No definition available. + Details
Name: | csv_ContractsSecuredByInsuranceAbstract
Namespace Prefix: | csv_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition The amount of preneed funeral contracts secured by insurance. + References No definition available. + Details
Name: | csv_PreneedFuneralContractsSecuredByInsurance
Namespace Prefix: | csv_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant