Receivables from Preneed Funeral Trusts (Receivables from preneed funeral trust funds) (Details) - USD ($) $ in Thousands	Sep. 30, 2026	Dec. 31, 2025
Receivables From Preneed Trusts [Abstract]
Preneed funeral trust funds, at cost	$ 16,611	$ 16,758
Less: allowance for contract cancellation	(498)	(503)
Receivables from preneed funeral trusts, net	$ 16,113	$ 16,255

An amount representing assets in trusts, reported at cost, 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. May include both pledged and unpledged holdings.

No definition available.

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