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Trust Investments (Components of preneed cemetery trust investments) (Details) - USD ($) $ in Thousands | Dec. 31, 2021 | Dec. 31, 2020
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Debt and Equity Securities, FV-NI [Line Items] |  |
Preneed cemetery trust investments | $ 100,903 | $ 86,604
Preneed Cemetery Trust Investments |  |
Debt and Equity Securities, FV-NI [Line Items] |  |
Preneed cemetery trust investments, at market value | 103,808 | 89,081
Less: allowance for contract cancellation | (2,905) | (2,477)
Preneed cemetery trust investments | 100,903 | 86,604
Preneed Funeral Trust Investments |  |
Debt and Equity Securities, FV-NI [Line Items] |  |
Preneed cemetery trust investments, at market value | $ 116,973 | $ 104,166

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- Definition The allowance for contract cancellation on trust 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 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, before allowance for related contract cancellations. + References No definition available. + Details
Name: | csv_AvailableForSaleSecuritiesCurrentBeforeAllowanceForContractCancellation
Namespace Prefix: | csv_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Definition The aggregate fair value as of the balance sheet date of financial instruments and other positions which may include: (1) fixed income securities; (2) common stock; (3) mutual funds; (4) common trust funds; (5) master trusts; (6) certificates of deposit; (7) bank deposits; and (8) partnerships. + References No definition available. + Details
Name: | csv_PreneedCemeteryTrustInvestments
Namespace Prefix: | csv_
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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- Details
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Balance Type: |
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- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=csv_PreneedFuneralTrustInvestmentsMember
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