Receivables from Preneed Trusts (Narrative) (Details)	3 Months Ended
Mar. 31, 2020
Receivables From Preneed Trusts [Abstract]
Amount at which there is no controlling interest in trust assets (Description)	less than 50%

The percentage at which there is no controlling financial interest in trust assets.

No definition available.

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