Debt Instrument, Discount Rate

No definition available.

Name:	csv_DebtInstrumentDiscountRate
Namespace Prefix:	csv_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Debt Instrument, Unamortized Debt Issuance Costs

+ References

No definition available.

+ Details

Name:	csv_DebtInstrumentUnamortizedDebtIssuanceCosts
Namespace Prefix:	csv_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of noncash expense included in interest expense to amortize debt discount and premium associated with the related debt instruments. Excludes amortization of financing costs. Alternate captions include noncash interest expense.

+ References

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-URI http://asc.fasb.org/extlink&oid=120395209&loc=SL114868664-224227

+ Details

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

- Definition

Amount of amortization expense attributable to debt issuance costs.

+ References

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

Name:	us-gaap_AmortizationOfFinancingCosts
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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Face (par) amount of debt instrument at time of issuance.

+ References

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+ Details

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

- Definition

Increase for accrued, but unpaid interest on the debt instrument for the period.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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-Name Accounting Standards Codification
-Topic 235
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-Section S99
-Paragraph 1
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+ Details

Name:	us-gaap_DebtInstrumentIncreaseAccruedInterest
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

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

+ References

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-Name Accounting Standards Codification
-Topic 210
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-Paragraph 1
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+ Details

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

- 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

Name:	us-gaap_DebtInstrumentTerm
Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount, after accumulated amortization, of debt discount.

+ References

+ Details

Name:	us-gaap_DebtInstrumentUnamortizedDiscount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Amount, after accumulated amortization, of debt premium.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 55
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+ Details

Name:	us-gaap_DebtInstrumentUnamortizedPremium
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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount, before accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

+ References

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+ Details

Name:	us-gaap_DeferredFinanceCostsGross
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- 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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-SubTopic 20
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+ Details

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

- Definition

The fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission.

+ References

No definition available.

+ Details

Name:	us-gaap_LongTermDebtFairValue
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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The cash inflow from a borrowing with the highest claim on the assets of the entity in case of bankruptcy or liquidation (with maturities initially due after one year or beyond the operating cycle, if longer).

+ References

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-SubTopic 10
-Section 45
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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- 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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Balance Type:	credit
Period Type:	duration

- Details

Name:	us-gaap_DebtInstrumentAxis=csv_SeniorNoteTwoMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

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Namespace Prefix:
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Period Type:

- Details

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Period Type:

Senior Notes (Details) - USD ($)		3 Months Ended	12 Months Ended
Senior Notes (Details) - USD ($)	Dec. 19, 2019	Dec. 31, 2019	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	May 31, 2018
Debt Instrument [Line Items]
Repayments of Long-term Lines of Credit			$ 146,100,000	$ 118,261,000	$ 189,400,000
Debt instrument, term		65 years
Proceeds from the issuance of the senior notes due 2026			0	76,688,000	320,125,000
Debt Instrument, Unamortized Discount			20,000
Accretion of debt discount, net of debt premium on senior notes			307,000	492,000	272,000
Amortization of debt issuance costs			782,000	392,000	532,000
Senior Note Two [Member]
Debt Instrument [Line Items]
Accretion of debt discount, net of debt premium on senior notes			221,000	0	0
Senior Notes [Member]
Debt Instrument [Line Items]
Principal amount			400,000,000
Debt premium, net of accumulated amortization of $0 and $221, respectively			1,467,000
Long-term debt, fair value			427,900,000
Interest expense			26,500,000	21,711,000	12,620,000
Accretion of debt discount, net of debt premium on senior notes			528,000	493,000	273,000
Amortization of debt issuance costs			$ 280,000	$ 139,000	$ 77,000
Senior Notes [Member] \| Senior Note One [Member]
Debt Instrument [Line Items]
Debt Instrument, Discount Rate			6.87%
Debt Instrument, Unamortized Debt Issuance Costs				6.69%
Senior Notes [Member] \| Senior Note Two [Member]
Debt Instrument [Line Items]
Debt Instrument, Increase, Accrued Interest	$ 200,000
Debt Issuance Costs, Gross	1,000,000.0
Debt instrument interest rate (in percent)			6.625%
Principal amount	75,000,000.0	$ 400,000,000	$ 400,000,000	$ 400,000,000		$ 325,000,000.0
Proceeds from the issuance of the senior notes due 2026	76,900,000
Debt premium, net of accumulated amortization of $0 and $221, respectively	$ 1,700,000	$ 1,688,000	$ 1,467,000	$ 1,688,000
Debt Instrument, Discount Rate			6.20%
Debt Instrument, Unamortized Debt Issuance Costs				6.90%