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- Carrying Values of Leases (Details) - USD ($) $ in Thousands | Mar. 31, 2020 | Dec. 31, 2019
--- | --- | ---
Leases [Abstract] |  |
Finance lease right-of-use assets | $ 6,770 | $ 6,770
Accumulated depreciation | (1,675) | (1,566)
Finance lease right-of-use assets, net | $ 5,095 | $ 5,204

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- Definition Finance Lease, Right-of-Use Asset, Accumulated Amortization + References No definition available. + Details
Name: | csv_FinanceLeaseRightofUseAssetAccumulatedAmortization
Namespace Prefix: | csv_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Finance Lease, Right-of-Use Asset, Net + References No definition available. + Details
Name: | csv_FinanceLeaseRightofUseAssetNet
Namespace Prefix: | csv_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Definition Amount of lessee's right to use underlying asset under finance lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 45 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=77888419&loc=SL77918627-209977 + Details
Name: | us-gaap_FinanceLeaseRightOfUseAsset
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- References No definition available. + Details
Name: | us-gaap_LeasesAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration