Trust Investments (Components of preneed funeral trust investments) (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
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

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.

No definition available.

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Namespace Prefix:	csv_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant