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Income Taxes (Narrative) (Details) (USD $) | 12 Months Ended |  |  |
--- | --- | --- | --- | ---
Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011
Operating Loss Carryforwards [Line Items] |  |  |  |
Unrecognized tax benefits, decrease resulting from settlements with taxing authorities | $ 7,300,000 us-gaap_UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities |  |  |
Increase in income tax benefit | (1,700,000)us-gaap_IncreaseDecreaseInIncomeTaxes |  |  |
Unrecognized tax benefits, increase resulting from settlements with taxing authorities | 5,600,000 us-gaap_UnrecognizedTaxBenefitsIncreasesResultingFromSettlementsWithTaxingAuthorities |  |  |
Unrecognized tax benefits, decrease to interest on income tax expense | 600,000 csv_UnrecognizedTaxBenefitsDecreasetoInterestonIncomeTaxExpense |  |  |
Change in valuation allowance | 138,000 us-gaap_ValuationAllowanceDeferredTaxAssetChangeInAmount |  |  |
Unrecognized tax benefits | 515,000 us-gaap_UnrecognizedTaxBenefits | 7,832,000 us-gaap_UnrecognizedTaxBenefits | 7,747,000 us-gaap_UnrecognizedTaxBenefits | 7,617,000 us-gaap_UnrecognizedTaxBenefits
State |  |  |  |
Operating Loss Carryforwards [Line Items] |  |  |  |
Operating loss carryforwards | 57,100,000 us-gaap_OperatingLossCarryforwards / us-gaap_IncomeTaxAuthorityAxis = us-gaap_StateAndLocalJurisdictionMember |  |  |
Federal |  |  |  |
Operating Loss Carryforwards [Line Items] |  |  |  |
Income tax deductions | $ 1,600,000 csv_UnrecognizedTaxBenefirtSummaryOfPositionsCumulativeDeductionsTaken / us-gaap_IncomeTaxAuthorityAxis = csv_FederalMember |  |  |

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- Definition Unrecognized Tax Benefirt, Summary of Positions, Cumulative Deductions Taken + References No definition available. + Details
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- Definition Unrecognized Tax Benefits, Decrease to Interest on Income Tax Expense + References No definition available. + Details
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- Definition The increase (decrease) during the reporting period in the amounts payable to taxing authorities for taxes that are based on the reporting entity's earnings, net of amounts receivable from taxing authorities for refunds of overpayments or recoveries of income taxes, and in deferred and other tax liabilities and assets. + References No definition available. + Details
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- Definition Amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32559-109319 + Details
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- Definition Amount of unrecognized tax benefits pertaining to uncertain tax positions taken in tax returns. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Unrecognized Tax Benefit -URI http://asc.fasb.org/extlink&oid=6527854 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15A -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6907707&loc=SL6600010-109319 + Details
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- Definition Amount of decrease in unrecognized tax benefits resulting from settlements with taxing authorities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15A -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=6907707&loc=SL6600010-109319 + Details
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- Definition Amount of increase in unrecognized tax benefits resulting from settlements with taxing authorities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15A -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=6907707&loc=SL6600010-109319 + Details
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- Definition Amount of increase (decrease) in the valuation allowance for a specified deferred tax asset. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 45 -Paragraph 20 -URI http://asc.fasb.org/extlink&oid=37586315&loc=d3e32123-109318 + Details
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