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DIVESTED OPERATIONS (Details) $ in Millions | Sep. 30, 2019 USD ($) | Dec. 31, 2018 business
--- | --- | ---
Discontinued Operations and Disposal Groups [Abstract] |  |
Consideration | $ | $ 0.9 |
Number of business closed | business |  | 3

X
- Definition Number Of Business Closed + References No definition available. + Details
Name: | csv_NumberOfBusinessClosed
Namespace Prefix: | csv_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

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 Amount of consideration received or receivable for the disposal of assets and liabilities, including discontinued operation. + References No definition available. + Details
Name: | us-gaap_DisposalGroupIncludingDiscontinuedOperationConsideration
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant