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Long-Term Debt Long-Term Debt (Narrative) (Details) (USD $) | 0 Months Ended | 9 Months Ended | 12 Months Ended |  |  |
--- | --- | --- | --- | --- | --- | ---
Apr. 14, 2014 | Sep. 30, 2014 | Dec. 31, 2014 | Dec. 31, 2013 | Apr. 13, 2014 | Feb. 27, 2014
Debt Instrument [Line Items] |  |  |  |  |  |
Line of credit facility, current borrowing capacity |  |  | $ 325,000,000 us-gaap_LineOfCreditFacilityCurrentBorrowingCapacity |  |  |
Principal amount |  |  | 162,017,000 us-gaap_LongTermDebt |  |  |
Revolving credit facility |  |  | 40,500,000 us-gaap_LineOfCredit | 36,900,000 us-gaap_LineOfCredit |  |
Periodic principal payments, term | 2 years |  |  |  |  |
Ratio of indebtedness to net capital (in ratio) |  |  | 2.70 us-gaap_RatioOfIndebtednessToNetCapital1 |  |  |
Gain (loss) on write-off of unamortized loan costs |  | 1,000,000 csv_GainsLossesOnExtinguishmentOfDebtAndOtherCosts |  |  |  |
Debt compliance, required minimum fixed charge ratio |  |  | 1.20 csv_DebtInstrumentDebtComplianceRequiredMinimumFixedChargeRatio |  |  |
Ratio of earnings to fixed cost obligations (in ratio) |  |  | 2.74 csv_RatioOfEarningsToFixedCostObligations |  |  |
Before June 29, 2014 |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Debt compliance, required maximum leverage ratio |  |  | 3.75 csv_DebtInstrumentDebtComplianceRequiredMaximumLeverageRatio / csv_DebtCompliancePeriodAxis = csv_DebtCompliancePeriodPeriodOneMember |  |  |
After June 29, 2013 |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Debt compliance, required maximum leverage ratio |  |  | 3.50 csv_DebtInstrumentDebtComplianceRequiredMaximumLeverageRatio / csv_DebtCompliancePeriodAxis = csv_DebtCompliancePeriodPeriodTwoMember |  |  |
Term Number One [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Periodic principal repayment (percent) | 7.50%csv_DebtInstrumentPeriodicPrincipalRepaymentPercentage / csv_LoanFacilitybyTermAxis = csv_TermNumberOneMember |  |  |  |  |
Term Number Two [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Periodic principal repayment (percent) | 10.00%csv_DebtInstrumentPeriodicPrincipalRepaymentPercentage / csv_LoanFacilitybyTermAxis = csv_TermNumberTwoMember |  |  |  |  |
Term Number Three [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Periodic principal repayment (percent) | 12.50%csv_DebtInstrumentPeriodicPrincipalRepaymentPercentage / csv_LoanFacilitybyTermAxis = csv_TermNumberThreeMember |  |  |  |  |
Line of Credit | Prime Rate Option |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Debt instrument interest rate (in percent) |  |  | 1.50%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1 / csv_DebtInterestRateOptionsAxis = csv_PrimeRateOptionMember / us-gaap_LongtermDebtTypeAxis = us-gaap_LineOfCreditMember |  |  |
Line of Credit | LIBOR Margin Option |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Debt instrument interest rate (in percent) |  |  | 2.50%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1 / csv_DebtInterestRateOptionsAxis = csv_LiborMarginOptionMember / us-gaap_LongtermDebtTypeAxis = us-gaap_LineOfCreditMember |  |  |
Deferred Purchase Price Notes [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Debt instrument interest rate (in percent) |  |  | 0.00%us-gaap_DebtInstrumentInterestRateStatedPercentage / us-gaap_LongtermDebtTypeAxis = csv_DeferredPurchasePriceNotesMember |  |  |
Deferred Purchase Price Notes [Member] | Minimum |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Debt instrument interest rate (in percent) |  |  | 7.00%us-gaap_DebtInstrumentInterestRateStatedPercentage / us-gaap_LongtermDebtTypeAxis = csv_DeferredPurchasePriceNotesMember / us-gaap_RangeAxis = us-gaap_MinimumMember |  |  |
Deferred purchase price notes payable to sellers of acquired entities, discounted imputed interest rate (in Percent) |  |  | 9.50%csv_DebtInstrumentImputedInterestRate / us-gaap_LongtermDebtTypeAxis = csv_DeferredPurchasePriceNotesMember / us-gaap_RangeAxis = us-gaap_MinimumMember |  |  |
Debt instrument, term |  |  | 5 years |  |  |
Deferred Purchase Price Notes [Member] | Maximum |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Debt instrument interest rate (in percent) |  |  | 11.00%us-gaap_DebtInstrumentInterestRateStatedPercentage / us-gaap_LongtermDebtTypeAxis = csv_DeferredPurchasePriceNotesMember / us-gaap_RangeAxis = us-gaap_MaximumMember |  |  |
Deferred purchase price notes payable to sellers of acquired entities, discounted imputed interest rate (in Percent) |  |  | 11.00%csv_DebtInstrumentImputedInterestRate / us-gaap_LongtermDebtTypeAxis = csv_DeferredPurchasePriceNotesMember / us-gaap_RangeAxis = us-gaap_MaximumMember |  |  |
Debt instrument, term |  |  | 20 years |  |  |
Revolving Credit Facility |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Line of credit facility, current borrowing capacity |  |  | 200,000,000 us-gaap_LineOfCreditFacilityCurrentBorrowingCapacity / us-gaap_CreditFacilityAxis = us-gaap_RevolvingCreditFacilityMember |  |  |
Line of credit facility, potential increase to borrowing capacity |  |  | 50,000,000 csv_LineOfCreditFacilityPotentialIncreaseToBorrowingCapacity / us-gaap_CreditFacilityAxis = us-gaap_RevolvingCreditFacilityMember |  |  |
Maximum borrowing capacity |  |  |  |  | 125,000,000 us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity / us-gaap_CreditFacilityAxis = us-gaap_RevolvingCreditFacilityMember |
Revolving Credit Facility | Unsecured Debt [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Maximum borrowing capacity |  |  |  |  |  | 150,000,000 us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity / us-gaap_CreditFacilityAxis = us-gaap_RevolvingCreditFacilityMember / us-gaap_LongtermDebtTypeAxis = us-gaap_UnsecuredDebtMember
Credit Facility, Term Note |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Line of credit facility, current borrowing capacity |  |  | $ 125,000,000 us-gaap_LineOfCreditFacilityCurrentBorrowingCapacity / us-gaap_CreditFacilityAxis = csv_CreditFacilityTermNoteMember |  |  |
Line of credit facility, weighted average interest rate |  |  | 2.80%us-gaap_LongtermDebtWeightedAverageInterestRate / us-gaap_CreditFacilityAxis = csv_CreditFacilityTermNoteMember |  |  |

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- Definition Debt Instrument, Debt Compliance, Required Maximum Leverage Ratio + References No definition available. + Details
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- Definition Debt Instrument, Debt Compliance, Required Minimum Fixed Charge Ratio + References No definition available. + Details
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- 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

X
- Definition Debt Instrument, Periodic Principal Payments, Term + References No definition available. + Details
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Namespace Prefix: | csv_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

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- Definition Debt Instrument, Periodic Principal Repayment, Percentage + References No definition available. + Details
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Namespace Prefix: | csv_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

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- Definition Gains Losses On Extinguishment Of Debt And Other Costs + References No definition available. + Details
Name: | csv_GainsLossesOnExtinguishmentOfDebtAndOtherCosts
Namespace Prefix: | csv_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Definition Line of Credit Facility, Potential Increase to Borrowing Capacity + References No definition available. + Details
Name: | csv_LineOfCreditFacilityPotentialIncreaseToBorrowingCapacity
Namespace Prefix: | csv_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Earnings divided by total fixed cost obligations. + References No definition available. + Details
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Namespace Prefix: | csv_
Data Type: | xbrli:pureItemType
Balance Type: | na
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- Definition Percentage points added to the reference rate to compute the variable rate on the debt instrument. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

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- Definition Contractual interest rate for funds borrowed, under the debt agreement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 22 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(1)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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Namespace Prefix: | us-gaap_
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Balance Type: | na
Period Type: | instant

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- Details
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Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- 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

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- Definition The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.16) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 20, 22 -Article 5 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.16) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 + Details
Name: | us-gaap_LineOfCredit
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Amount of current borrowing capacity under the credit facility considering any current restrictions on the amount that could be borrowed (for example, borrowings may be limited by the amount of current assets), but without considering any amounts currently outstanding under the facility. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 22 -Article 5 + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- 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. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 22 -Article 5 + Details
Name: | us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Carrying amount of long-term debt, net of unamortized discount or premium, including current and noncurrent amounts. 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/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 16 -Article 7 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.16) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 16 -Article 9 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 20, 22 -Article 5 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.16) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Weighted average interest rate of long-term debt outstanding. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
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Balance Type: | na
Period Type: | instant

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- Definition Indebtedness divided by net capital. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
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- Details
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Namespace Prefix: |
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- Details
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Namespace Prefix: |
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Balance Type: |
Period Type: |

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- Details
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Namespace Prefix: |
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Balance Type: |
Period Type: |

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- Details
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Namespace Prefix: |
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Period Type: |

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- Details
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Namespace Prefix: |
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- Details
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Namespace Prefix: |
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Period Type: |

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- Details
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Namespace Prefix: |
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Balance Type: |
Period Type: |

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- Details
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Namespace Prefix: |
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Balance Type: |
Period Type: |

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- Details
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