Revenue From Contracts With Customers Deferred Revenue (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Receivables from Preneed Funeral Trusts	$ (17,794)	$ (18,024)

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