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Receivables from Preneed Trusts (Narrative) (Details) | 9 Months Ended
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Sep. 30, 2020
Receivables From Preneed Trusts [Abstract] |
Amount at which there is no controlling interest in trust assets (Description) | less than 50%

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- Definition The percentage at which there is no controlling financial interest in trust assets. + References No definition available. + Details
Name: | csv_ControllingFinancialInterest
Namespace Prefix: | csv_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition RECEIVABLES FROM PRENEED TRUSTS + References No definition available. + Details
Name: | csv_ReceivablesFromPreneedTrustsAbstract
Namespace Prefix: | csv_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration