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DIVESTED OPERATIONS (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2021 USD ($) divestiture	Mar. 31, 2020 USD ($)
Discontinued Operations and Disposal Groups [Abstract]
Number of Businesses Sold | divestiture	2
Proceeds from divestitures and sale of other assets | $	$ 2,800	$ 78

X

- Definition

Number of Businesses Sold

+ References

No definition available.

+ Details

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Namespace Prefix:	csv_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

X

- References

No definition available.

+ Details

Name:	us-gaap_DiscontinuedOperationsAndDisposalGroupsAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The cash inflow associated with the amount received from the sale of a portion of the company's business, for example a segment, division, branch or other business, during the period.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 12
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3179-108585

+ Details

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Balance Type:	debit
Period Type:	duration