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Receivables from Preneed Trusts (Receivables from preneed funeral trust funds) (Details) - USD ($) $ in Thousands | Sep. 30, 2018 | Dec. 31, 2017
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Receivables From Preneed Trusts [Abstract] |  |
Preneed trust funds, at cost | $ 17,334 | $ 15,759
Less: Allowance for contract cancellation | (519) | (472)
Receivables from preneed trusts, net | $ 16,815 | $ 15,287

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- Definition The allowance for contract cancellation related to preneed funeral funds. + References No definition available. + Details
Name: | csv_PreneedFuneralTrustFundsAllowanceForContractCancellation
Namespace Prefix: | csv_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition An amount representing assets in trusts, reported at cost, which are controlled and operated by third parties in which the Company does not have a controlling financial interest (less than 50%) in the trust assets. May include both pledged and unpledged holdings. + References No definition available. + Details
Name: | csv_ReceivablesFromPreneedFuneralTrusts
Namespace Prefix: | csv_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition An amount representing assets in trusts, reported at cost before allowance for contract cancellations, which are controlled and operated by third parties in which the Company does not have a controlling financial interest (less than 50%) in the trust assets. + References No definition available. + Details
Name: | csv_ReceivablesFromPreneedFuneralTrustsGross
Namespace Prefix: | csv_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- 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