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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     $ 325,000,000us-gaap_LineOfCreditFacilityCurrentBorrowingCapacity      
Principal amount     162,017,000us-gaap_LongTermDebt      
Revolving credit facility     40,500,000us-gaap_LineOfCredit 36,900,000us-gaap_LineOfCredit    
Periodic principal payments, term 2 years          
Ratio of indebtedness to net capital (in ratio)     2.70us-gaap_RatioOfIndebtednessToNetCapital1      
Gain (loss) on write-off of unamortized loan costs   1,000,000csv_GainsLossesOnExtinguishmentOfDebtAndOtherCosts        
Debt compliance, required minimum fixed charge ratio     1.20csv_DebtInstrumentDebtComplianceRequiredMinimumFixedChargeRatio      
Ratio of earnings to fixed cost obligations (in ratio)     2.74csv_RatioOfEarningsToFixedCostObligations      
Before June 29, 2014            
Debt Instrument [Line Items]            
Debt compliance, required maximum leverage ratio     3.75csv_DebtInstrumentDebtComplianceRequiredMaximumLeverageRatio
/ csv_DebtCompliancePeriodAxis
= csv_DebtCompliancePeriodPeriodOneMember
     
After June 29, 2013            
Debt Instrument [Line Items]            
Debt compliance, required maximum leverage ratio     3.50csv_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     200,000,000us-gaap_LineOfCreditFacilityCurrentBorrowingCapacity
/ us-gaap_CreditFacilityAxis
= us-gaap_RevolvingCreditFacilityMember
     
Line of credit facility, potential increase to borrowing capacity     50,000,000csv_LineOfCreditFacilityPotentialIncreaseToBorrowingCapacity
/ us-gaap_CreditFacilityAxis
= us-gaap_RevolvingCreditFacilityMember
     
Maximum borrowing capacity         125,000,000us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
/ us-gaap_CreditFacilityAxis
= us-gaap_RevolvingCreditFacilityMember
 
Revolving Credit Facility | Unsecured Debt [Member]            
Debt Instrument [Line Items]            
Maximum borrowing capacity           150,000,000us-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     $ 125,000,000us-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