Receivables (Components of Cemetery receivables) (Details) - USD ($) $ in Thousands	Sep. 30, 2026	Dec. 31, 2025
Preneed Cemetery Receivables [Abstract]
Cemetery receivables	$ 132,116	$ 122,307
Less: unearned finance charges	(4,815)	(4,805)
Total	127,301	117,502
Less: allowance for contract cancellation and credit losses	(5,538)	(5,812)
Less: balances due on undelivered cemetery preneed contracts	(19,513)	(16,579)
Less: amounts in accounts receivable	70,212	67,055
Less: amounts in accounts receivable	$ (32,038)	$ (28,056)

Preneed Cemetery Receivable, after Allowance for Credit Loss

No definition available.

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

- Definition

PRENEED CEMETERY RECEIVABLES

+ References

No definition available.

+ Details

Name:	csv_PreneedCemeteryReceivablesAbstract
Namespace Prefix:	csv_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

The allowance for contract cancellation related to preneed funeral funds.

+ References

No definition available.

+ Details

Name:	csv_PreneedFuneralTrustFundsAllowanceForContractCancellationAndCreditLoss
Namespace Prefix:	csv_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Preneed Receivables, Balances Due on Undelivered Contracts

+ References

No definition available.

+ Details

Name:	csv_PreneedReceivablesBalancesDueonUndeliveredContracts
Namespace Prefix:	csv_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Preneed Receivables, Gross

+ References

No definition available.

+ Details

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

- Definition

A contracted amount representing a promise to pay the Entity (holder) a definite sum of money at a future date, net of any write-downs taken for collection uncertainty on the part of the holder. Such amount may include accrued interest receivable in accordance with the terms of the contract. May include both pledged and unpledged holdings.

+ References

No definition available.

+ Details

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

- Definition

An amount representing assets in trusts, reported at cost before allowance for contract cancellations, which are controlled and operated by third parties in which the Company does not have a controlling financial interest (less than 50%) in the trust assets.

+ References

No definition available.

+ Details

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

- Definition

Amount of unearned discount, finance charge, and interest included in face amount of receivable. Excludes cash or quantity discount or both.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 310
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 8
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481990/310-10-45-8

+ Details

Name:	us-gaap_DeferredDiscountsFinanceChargesAndInterestIncludedInReceivables
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant