Commitments and Contingencies Commitments and Contingencies (Non-Compete, Consulting and Employment Agreements) (Details) $ in Thousands	12 Months Ended
Dec. 31, 2020 USD ($)
Other Commitments [Line Items]
2020	$ 6,711
2021	5,562
2022	2,510
2023	1,705
2024	1,382
Thereafter	2,351
Total	20,221
Noncompete Agreements
Other Commitments [Line Items]
2020	2,103
2021	1,569
2022	1,063
2023	691
2024	431
Thereafter	439
Total	6,296
Consulting Agreement [Member]
Other Commitments [Line Items]
2020	879
2021	537
2022	266
2023	114
2024	51
Thereafter	0
Total	1,847
Employment Agreement [Member]
Other Commitments [Line Items]
2020	3,729
2021	3,456
2022	1,181
2023	900
2024	900
Thereafter	1,912
Total	$ 12,078
Minimum \| Noncompete Agreements
Other Commitments [Line Items]
Other Commitment, Term of Contract	1 year
Minimum \| Consulting Agreement [Member]
Other Commitments [Line Items]
Other Commitment, Term of Contract	1 year
Minimum \| Employment Agreement [Member]
Other Commitments [Line Items]
Other Commitment, Term of Contract	3 years
Maximum \| Noncompete Agreements
Other Commitments [Line Items]
Other Commitment, Term of Contract	10 years
Maximum \| Consulting Agreement [Member]
Other Commitments [Line Items]
Other Commitment, Term of Contract	5 years
Maximum \| Employment Agreement [Member]
Other Commitments [Line Items]
Other Commitment, Term of Contract	5 years

Othe Commitment, Term of Contract

No definition available.

Name:	csv_OtherCommitmentTermOfContract
Namespace Prefix:	csv_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Minimum amount of other commitment not otherwise specified in the taxonomy. Excludes commitments explicitly modeled in the taxonomy, including but not limited to, long-term and short-term purchase commitments, recorded and unrecorded purchase obligations, supply commitments, registration payment arrangements, leases, debt, product warranties, guarantees, environmental remediation obligations, and pensions.

+ References

No definition available.

+ Details

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

- Definition

Amount of commitment classified as other to be paid after fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

+ References

No definition available.

+ Details

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

- Definition

Amount of commitment classified as other to be paid in fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

+ References

No definition available.

+ Details

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

- Definition

Amount of commitment classified as other to be paid in fourth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

+ References

No definition available.

+ Details

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

- Definition

Amount of commitment classified as other to be paid in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

+ References

No definition available.

+ Details

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

- Definition

Amount of commitment classified as other to be paid in second fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

+ References

No definition available.

+ Details

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

- Definition

Amount of commitment classified as other to be paid in third fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

+ References

No definition available.

+ Details

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

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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

- Details

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Namespace Prefix:
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- Details

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- Details

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Data Type:	na
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- Details

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