Trust Investments (Components of preneed cemetery trust investments) (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Debt and Equity Securities, FV-NI [Line Items]
Preneed cemetery trust investments	$ 75,580	$ 72,382
Preneed Cemetery Trust Investments [Member]
Debt and Equity Securities, FV-NI [Line Items]
Preneed cemetery trust investments, at market value	77,968	74,572
Less: allowance for contract cancellation	(2,388)	(2,190)
Preneed cemetery trust investments	$ 75,580	$ 72,382

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.

No definition available.

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