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Preneed Trust Investments (Components of preneed cemetery trust investments) (Details) - USD ($)	9 Months Ended
	Sep. 30, 2019	Dec. 31, 2018
Debt and Equity Securities, FV-NI [Line Items]
Preneed cemetery trust investments, net	$ 68,333,000	$ 62,432,000
Fair value measurements, transfers between Level 1 and Level 2	0
Preneed Cemetery Trust Investments [Member]
Debt and Equity Securities, FV-NI [Line Items]
Preneed cemetery trust investments, at market value	70,503,000	64,549,000
Less: allowance for contract cancellation	(2,170,000)	(2,117,000)
Preneed cemetery trust investments, net	$ 68,333,000	$ 62,432,000

X

- 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

X

- 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

X

- Definition

Fair Value Measurements, Transfers Between Level 1 and Level 2

+ References

No definition available.

+ Details

Name:	csv_FairValueMeasurementsTransfersBetweenLevel1AndLevel2
Namespace Prefix:	csv_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- 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

X

- 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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Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	us-gaap_StatementBusinessSegmentsAxis=csv_PreneedCemeteryTrustInvestmentsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: