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Subsequent Events SUBSEQUENT EVENTS (Details) - USD ($) $ in Thousands		12 Months Ended
	Jan. 05, 2022	Dec. 31, 2021	Feb. 23, 2022	Oct. 27, 2021	Jul. 26, 2021	May 18, 2021
Subsequent Event [Line Items]
Legal Fees		$ 1,100
Stock Repurchase Program, Additional Authorized Amount				$ 75,000	$ 25,000	$ 25,000
Stock Repurchase Program, Remaining Authorized Repurchase Amount		$ 8,100
Subsequent Event
Subsequent Event [Line Items]
Litigation Settlement, Expense	$ 1,000
Stock Repurchase Program, Additional Authorized Amount			$ 75,000
Stock Repurchase Program, Remaining Authorized Repurchase Amount			$ 83,100

X

- Definition

Stock Repurchase Program, Additional Authorized Amount

+ References

No definition available.

+ Details

Name:	csv_StockRepurchaseProgramAdditionalAuthorizedAmount
Namespace Prefix:	csv_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

The amount of expense provided in the period for legal costs incurred on or before the balance sheet date pertaining to resolved, pending or threatened litigation, including arbitration and mediation proceedings.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.3)
-URI http://asc.fasb.org/extlink&oid=123367319&loc=SL114868664-224227

+ Details

Name:	us-gaap_LegalFees
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Amount of litigation expense, including but not limited to legal, forensic, accounting, and investigative fees.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Amount remaining of a stock repurchase plan authorized.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event.

+ References

No definition available.

+ Details

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

X

- Details

Name:	us-gaap_SubsequentEventTypeAxis=us-gaap_SubsequentEventMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: