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Trust Investments (Components of preneed funeral trust investments) (Details) - USD ($) $ in Thousands | Sep. 30, 2020 | Dec. 31, 2019
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Debt and Equity Securities, FV-NI [Line Items] |  |
Preneed funeral trust investments | $ 92,823 | $ 96,335
Preneed Funeral Trust Investments [Member] |  |
Debt and Equity Securities, FV-NI [Line Items] |  |
Preneed funeral trust investments, at fair value | 95,730 | 99,246
Less: allowance for contract cancellation | (2,907) | (2,911)
Preneed funeral trust investments | $ 92,823 | $ 96,335

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- Definition The allowance for contract cancellation on trust investments. + References No definition available. + Details
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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
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Data Type: | xbrli:monetaryItemType
Balance Type: | debit
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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; and (3) mutual funds. + References No definition available. + Details
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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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