Business Combination, Present Value of Deferred Payment, Liability

No definition available.

Name:	csv_BusinessCombinationPresentValueofDeferredPaymentLiability
Namespace Prefix:	csv_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

-- None. No documentation exists for this element. --

+ References

No definition available.

+ Details

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Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Debt Instrument, Imputed Interest Rate

+ References

No definition available.

+ Details

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Namespace Prefix:	csv_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Letters of Credit

+ References

No definition available.

+ Details

Name:	csv_LettersofCredit
Namespace Prefix:	csv_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Definition

Additional borrowing capacity under the credit facility's accordion feature providing the right to increase the line of credit borrowing capacity.

+ References

No definition available.

+ Details

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

- Definition

Earnings divided by total fixed cost obligations.

+ References

No definition available.

+ Details

Name:	csv_RatioOfEarningsToFixedCostObligations
Namespace Prefix:	csv_
Data Type:	xbrli:pureItemType
Balance Type:	na
Period Type:	instant

- Definition

Amount of amortization expense attributable to debt issuance costs.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
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+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

+ Details

Name:	us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

The average effective interest rate during the reporting period.

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+ Details

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Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

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Balance Type:	na
Period Type:	instant

- Definition

Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

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Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of the cost of borrowed funds accounted for as interest expense for debt.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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+ Details

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

- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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+ Details

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Balance Type:	credit
Period Type:	instant

- Definition

Indebtedness divided by net capital.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:pureItemType
Balance Type:	na
Period Type:	instant

- Definition

The cash outflow for the settlement of obligation drawn from a contractual arrangement with the lender, including letter of credit, standby letter of credit and revolving credit arrangements, under which borrowings can be made up to a specific amount at any point in time with maturities due beyond one year or the operating cycle, if longer.

+ References

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+ Details

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Period Type:	duration

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CREDIT FACILITY AND ACQUISITION DEBT (Narrative) (Details)			3 Months Ended			9 Months Ended
	Sep. 29, 2020 USD ($)	Nov. 30, 2016 USD ($)	Sep. 30, 2020 USD ($)	Mar. 31, 2020 USD ($)	Sep. 30, 2019 USD ($)	Sep. 30, 2020 USD ($)	Sep. 30, 2019 USD ($)	Dec. 31, 2020	Sep. 09, 2020 USD ($)	Dec. 31, 2019 USD ($) letter_of_credit	Mar. 19, 2014
Debt Covenant To Actual Ratios [Line Items]
Letters of Credit \| letter_of_credit										1
Repayments of Long-term Lines of Credit						$ 117,100,000	$ 37,300,000
Revolving credit facility present accordion provisions			$ 75,000,000.0			75,000,000.0
Deferred payments	$ 2,100,000	$ 2,000,000.0
Credit Facility amortization of debt issuance costs						$ 592,000	289,000
Ratio Actual [Member]
Debt Covenant To Actual Ratios [Line Items]
Ratio of indebtedness to net capital (in Ratio) (below at March 31, 2015)			5.75			5.75
Term Loan [Member]
Debt Covenant To Actual Ratios [Line Items]
Revolving credit facility, maximum borrowing capacity			$ 190,000,000.0			$ 190,000,000.0
Letter of Credit [Member]
Debt Covenant To Actual Ratios [Line Items]
Revolving credit facility, maximum borrowing capacity			15,000,000.0			15,000,000.0
Swingline [Member]
Debt Covenant To Actual Ratios [Line Items]
Revolving credit facility, maximum borrowing capacity			10,000,000.0			10,000,000.0
Senior Notes [Member]
Debt Covenant To Actual Ratios [Line Items]
Credit Facility amortization of debt issuance costs			72,000		$ 35,000	208,000	103,000
Acquisition debt imputed interest expense			6,625,000		$ 5,383,000	19,875,000	16,148,000
Debt Instrument, Term					68 months
Credit Agreement [Member]
Debt Covenant To Actual Ratios [Line Items]
Acquisition debt imputed interest expense			828,000		$ 350,000	$ 3,164,000	1,090,000
Credit Agreement [Member] \| Term Loan [Member]
Debt Covenant To Actual Ratios [Line Items]
Debt Instrument, Basis Spread on Variable Rate						3.125%
Convertible Subordinated Notes [Member]
Debt Covenant To Actual Ratios [Line Items]
Carrying value of the liability component			2,522,000			$ 2,522,000			$ 2,559,000	$ 5,971,000
Credit Facility amortization of debt issuance costs			$ 9,000		6,000	$ 21,000	19,000
Stated interest rate percentage			2.75%			2.75%					2.75%
Acquisition debt imputed interest expense			$ 43,000		43,000	$ 130,000	131,000
Prime Rate Option [Member] \| Line of Credit [Member]
Debt Covenant To Actual Ratios [Line Items]
Debt Instrument, Basis Spread on Variable Rate						2.00%
Libor Margin Option [Member] \| Line of Credit [Member]
Debt Covenant To Actual Ratios [Line Items]
Debt Instrument, Basis Spread on Variable Rate						3.00%
Series of Individually Immaterial Business Acquisitions [Member]
Debt Covenant To Actual Ratios [Line Items]
Acquisition debt imputed interest expense			122,000		$ 152,000	$ 373,000	$ 481,000
Revolving Credit Facility, Secured, Floating Rate [Member] \| Credit Agreement [Member] \| Revolving Credit Facility [Member]
Debt Covenant To Actual Ratios [Line Items]
Weighted average interest rate					3.90%	3.90%	4.00%
Revolving Credit Facility, Secured, Floating Rate [Member] \| Line of Credit [Member] \| Revolving Credit Facility [Member]
Debt Covenant To Actual Ratios [Line Items]
Carrying value of the liability component			$ 56,000,000			$ 56,000,000
Revolving Credit Facility, Secured, Floating Rate [Member] \| Line of Credit [Member] \| Revolving Credit Facility [Member] \| Ratio Actual [Member]
Debt Covenant To Actual Ratios [Line Items]
Ratio of indebtedness to net capital (in Ratio) (below at March 31, 2015)			2.00			2.00
Ratio of earnings to fixed cost obligations (in Ratio)			1.20			1.20
Revolving Credit Facility [Member] \| Credit Agreement 2018 [Member]
Debt Covenant To Actual Ratios [Line Items]
Carrying value of the liability component										$ 83,800,000
Credit Facility amortization of debt issuance costs				$ 118,000	$ 59,000	$ 363,000	$ 167,000
Forecast \| Ratio Actual [Member]
Debt Covenant To Actual Ratios [Line Items]
Ratio of indebtedness to net capital (in Ratio) (below at March 31, 2015)								5.50
Minimum [Member] \| Deferred Purchase Price Notes [Member]
Debt Covenant To Actual Ratios [Line Items]
Debt Instrument, Imputed Interest Rate			7.30%			7.30%
Debt Instrument, Term				5 years
Maximum [Member] \| Deferred Purchase Price Notes [Member]
Debt Covenant To Actual Ratios [Line Items]
Debt Instrument, Imputed Interest Rate			10.00%			10.00%
Debt Instrument, Term				20 years