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Cemetery Perpetual Care Trust Investments (The Components of Care trusts' corpus) (Details) - USD ($) $ in Thousands | Dec. 31, 2018 | Dec. 31, 2017
--- | --- | ---
Debt and Equity Securities, FV-NI [Line Items] |  |
Care trusts’ corpus | $ 43,494 | $ 49,856
Perpetual Care Trust Investments |  |
Debt and Equity Securities, FV-NI [Line Items] |  |
Trust assets, at market value | 44,071 | 50,229
Obligations due from trust | (577) | (373)
Care trusts’ corpus | $ 43,494 | $ 49,856

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- Definition The total liability as of the balance sheet date from proceeds deposited into trust from the sale of cemetery property interment rights, including undistributed earnings on investments. + References No definition available. + Details
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Namespace Prefix: | csv_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Amount of undistributed income due to or from the Care Trust Corpus. + References No definition available. + Details
Name: | csv_ObligationsDueFromToTrust
Namespace Prefix: | csv_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Amount of investment in debt and equity securities categorized neither as trading securities nor held-to-maturity securities and intended be sold or mature one year or operating cycle, if longer. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Details
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Data Type: | na
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Period Type: |