Basis of Presentation and Summary of Significant Accounting Policies Preneed Receivables (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Accounts, Notes, Loans and Financing Receivable [Line Items]
Preneed cemetery receivables	$ 48,897	$ 47,222
Less: balances due on undelivered cemetery preneed contracts	(8,540)	(7,919)
Preneed cemetery receivables, net	$ 21,533	$ 21,081

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.

No definition available.

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