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Trust Investments (Components of preneed cemetery trust investments) (Details) - USD ($) $ in Thousands	Sep. 30, 2025	Dec. 31, 2024
Debt and Equity Securities, FV-NI [Line Items]
Preneed cemetery trust investments	$ 102,011	$ 98,120
Preneed Cemetery Trust Investments
Debt and Equity Securities, FV-NI [Line Items]
Preneed cemetery trust investments, at market value	105,177	106,143
Less: allowance for contract cancellation	(3,166)	(3,147)
Preneed cemetery trust investments	102,011	102,996
Less: Held for sale	0	(4,876)
Preneed cemetery trust investments	$ 102,011	$ 98,120

X

- Definition

The allowance for contract cancellation on trust investments.

+ References

No definition available.

+ Details

Name:	csv_AllowanceForContractCancellation
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

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

Preneed Cemetery Trust Investments, HFS

+ References

No definition available.

+ Details

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

X

- Definition

Preneed Cemetery Trust Investments, Including HFS

+ References

No definition available.

+ Details

Name:	csv_PreneedCemeteryTrustInvestmentsIncludingHFS
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

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 6B
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482106/820-10-50-6B

+ Details

Name:	us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsLineItems
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: