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v2.4.1.9

Preneed Funeral Activities Schedule of Available-for-sale Securities (Details) (Funeral [Member], USD $) In Thousands, unless otherwise specified | 12 Months Ended
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Dec. 31, 2014 | Dec. 31, 2013
Schedule of Available-for-sale Securities [Line Items] |  |
Available-for-sale Securities, Amortized Cost Basis | $ 1,213,128 us-gaap_AvailableForSaleSecuritiesAmortizedCost | $ 1,359,271 us-gaap_AvailableForSaleSecuritiesAmortizedCost
Available-for-sale Securities, Gross Unrealized Gains | 33,058 us-gaap_AvailableForSaleSecuritiesGrossUnrealizedGains | 121,718 us-gaap_AvailableForSaleSecuritiesGrossUnrealizedGains
Available-for-sale Securities, Gross Unrealized Losses | (40,439)us-gaap_AvailableForSaleSecuritiesGrossUnrealizedLoss | (42,663)us-gaap_AvailableForSaleSecuritiesGrossUnrealizedLoss
Available-for-sale Securities, Fair Value | 1,205,747 sci_AvailableForSaleSecuritiesFairValue | 1,438,326 sci_AvailableForSaleSecuritiesFairValue
Fair Value, Inputs, Level 2 [Member] | US Treasury Securities [Member] |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Available-for-sale Securities, Amortized Cost Basis | 85,775 us-gaap_AvailableForSaleSecuritiesAmortizedCost / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel2Member / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_USTreasurySecuritiesMember / us-gaap_StatementBusinessSegmentsAxis = sci_FuneralMember | 111,824 us-gaap_AvailableForSaleSecuritiesAmortizedCost / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel2Member / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_USTreasurySecuritiesMember / us-gaap_StatementBusinessSegmentsAxis = sci_FuneralMember
Available-for-sale Securities, Gross Unrealized Gains | 468 us-gaap_AvailableForSaleSecuritiesGrossUnrealizedGains / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel2Member / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_USTreasurySecuritiesMember / us-gaap_StatementBusinessSegmentsAxis = sci_FuneralMember | 1,299 us-gaap_AvailableForSaleSecuritiesGrossUnrealizedGains / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel2Member / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_USTreasurySecuritiesMember / us-gaap_StatementBusinessSegmentsAxis = sci_FuneralMember
Available-for-sale Securities, Gross Unrealized Losses | (455)us-gaap_AvailableForSaleSecuritiesGrossUnrealizedLoss / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel2Member / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_USTreasurySecuritiesMember / us-gaap_StatementBusinessSegmentsAxis = sci_FuneralMember | (5,599)us-gaap_AvailableForSaleSecuritiesGrossUnrealizedLoss / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel2Member / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_USTreasurySecuritiesMember / us-gaap_StatementBusinessSegmentsAxis = sci_FuneralMember
Available-for-sale Securities, Fair Value | 85,788 sci_AvailableForSaleSecuritiesFairValue / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel2Member / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_USTreasurySecuritiesMember / us-gaap_StatementBusinessSegmentsAxis = sci_FuneralMember | 107,524 sci_AvailableForSaleSecuritiesFairValue / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel2Member / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_USTreasurySecuritiesMember / us-gaap_StatementBusinessSegmentsAxis = sci_FuneralMember
Fair Value, Inputs, Level 2 [Member] | Foreign Government Debt Securities [Member] |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Available-for-sale Securities, Amortized Cost Basis | 90,430 us-gaap_AvailableForSaleSecuritiesAmortizedCost / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel2Member / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_ForeignGovernmentDebtSecuritiesMember / us-gaap_StatementBusinessSegmentsAxis = sci_FuneralMember | 100,263 us-gaap_AvailableForSaleSecuritiesAmortizedCost / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel2Member / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_ForeignGovernmentDebtSecuritiesMember / us-gaap_StatementBusinessSegmentsAxis = sci_FuneralMember
Available-for-sale Securities, Gross Unrealized Gains | 449 us-gaap_AvailableForSaleSecuritiesGrossUnrealizedGains / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel2Member / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_ForeignGovernmentDebtSecuritiesMember / us-gaap_StatementBusinessSegmentsAxis = sci_FuneralMember | 81 us-gaap_AvailableForSaleSecuritiesGrossUnrealizedGains / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel2Member / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_ForeignGovernmentDebtSecuritiesMember / us-gaap_StatementBusinessSegmentsAxis = sci_FuneralMember
Available-for-sale Securities, Gross Unrealized Losses | (874)us-gaap_AvailableForSaleSecuritiesGrossUnrealizedLoss / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel2Member / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_ForeignGovernmentDebtSecuritiesMember / us-gaap_StatementBusinessSegmentsAxis = sci_FuneralMember | (1,113)us-gaap_AvailableForSaleSecuritiesGrossUnrealizedLoss / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel2Member / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_ForeignGovernmentDebtSecuritiesMember / us-gaap_StatementBusinessSegmentsAxis = sci_FuneralMember
Available-for-sale Securities, Fair Value | 90,005 sci_AvailableForSaleSecuritiesFairValue / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel2Member / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_ForeignGovernmentDebtSecuritiesMember / us-gaap_StatementBusinessSegmentsAxis = sci_FuneralMember | 99,231 sci_AvailableForSaleSecuritiesFairValue / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel2Member / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_ForeignGovernmentDebtSecuritiesMember / us-gaap_StatementBusinessSegmentsAxis = sci_FuneralMember
Fair Value, Inputs, Level 2 [Member] | Corporate Debt Securities [Member] |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Available-for-sale Securities, Amortized Cost Basis | 24,765 us-gaap_AvailableForSaleSecuritiesAmortizedCost / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel2Member / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_CorporateDebtSecuritiesMember / us-gaap_StatementBusinessSegmentsAxis = sci_FuneralMember | 64,579 us-gaap_AvailableForSaleSecuritiesAmortizedCost / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel2Member / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_CorporateDebtSecuritiesMember / us-gaap_StatementBusinessSegmentsAxis = sci_FuneralMember
Available-for-sale Securities, Gross Unrealized Gains | 423 us-gaap_AvailableForSaleSecuritiesGrossUnrealizedGains / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel2Member / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_CorporateDebtSecuritiesMember / us-gaap_StatementBusinessSegmentsAxis = sci_FuneralMember | 3,515 us-gaap_AvailableForSaleSecuritiesGrossUnrealizedGains / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel2Member / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_CorporateDebtSecuritiesMember / us-gaap_StatementBusinessSegmentsAxis = sci_FuneralMember
Available-for-sale Securities, Gross Unrealized Losses | (126)us-gaap_AvailableForSaleSecuritiesGrossUnrealizedLoss / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel2Member / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_CorporateDebtSecuritiesMember / us-gaap_StatementBusinessSegmentsAxis = sci_FuneralMember | (691)us-gaap_AvailableForSaleSecuritiesGrossUnrealizedLoss / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel2Member / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_CorporateDebtSecuritiesMember / us-gaap_StatementBusinessSegmentsAxis = sci_FuneralMember
Available-for-sale Securities, Fair Value | 25,062 sci_AvailableForSaleSecuritiesFairValue / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel2Member / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_CorporateDebtSecuritiesMember / us-gaap_StatementBusinessSegmentsAxis = sci_FuneralMember | 67,403 sci_AvailableForSaleSecuritiesFairValue / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel2Member / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_CorporateDebtSecuritiesMember / us-gaap_StatementBusinessSegmentsAxis = sci_FuneralMember
Fair Value, Inputs, Level 2 [Member] | Residential Mortgage Backed Securities [Member] |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Available-for-sale Securities, Amortized Cost Basis | 1,325 us-gaap_AvailableForSaleSecuritiesAmortizedCost / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel2Member / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_ResidentialMortgageBackedSecuritiesMember / us-gaap_StatementBusinessSegmentsAxis = sci_FuneralMember | 2,438 us-gaap_AvailableForSaleSecuritiesAmortizedCost / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel2Member / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_ResidentialMortgageBackedSecuritiesMember / us-gaap_StatementBusinessSegmentsAxis = sci_FuneralMember
Available-for-sale Securities, Gross Unrealized Gains | 29 us-gaap_AvailableForSaleSecuritiesGrossUnrealizedGains / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel2Member / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_ResidentialMortgageBackedSecuritiesMember / us-gaap_StatementBusinessSegmentsAxis = sci_FuneralMember | 23 us-gaap_AvailableForSaleSecuritiesGrossUnrealizedGains / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel2Member / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_ResidentialMortgageBackedSecuritiesMember / us-gaap_StatementBusinessSegmentsAxis = sci_FuneralMember
Available-for-sale Securities, Gross Unrealized Losses | (12)us-gaap_AvailableForSaleSecuritiesGrossUnrealizedLoss / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel2Member / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_ResidentialMortgageBackedSecuritiesMember / us-gaap_StatementBusinessSegmentsAxis = sci_FuneralMember | (33)us-gaap_AvailableForSaleSecuritiesGrossUnrealizedLoss / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel2Member / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_ResidentialMortgageBackedSecuritiesMember / us-gaap_StatementBusinessSegmentsAxis = sci_FuneralMember
Available-for-sale Securities, Fair Value | 1,342 sci_AvailableForSaleSecuritiesFairValue / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel2Member / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_ResidentialMortgageBackedSecuritiesMember / us-gaap_StatementBusinessSegmentsAxis = sci_FuneralMember | 2,428 sci_AvailableForSaleSecuritiesFairValue / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel2Member / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_ResidentialMortgageBackedSecuritiesMember / us-gaap_StatementBusinessSegmentsAxis = sci_FuneralMember
Fair Value, Inputs, Level 2 [Member] | Asset-backed Securities [Member] |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Available-for-sale Securities, Amortized Cost Basis | 6 us-gaap_AvailableForSaleSecuritiesAmortizedCost / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel2Member / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_AssetBackedSecuritiesMember / us-gaap_StatementBusinessSegmentsAxis = sci_FuneralMember | 3,407 us-gaap_AvailableForSaleSecuritiesAmortizedCost / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel2Member / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_AssetBackedSecuritiesMember / us-gaap_StatementBusinessSegmentsAxis = sci_FuneralMember
Available-for-sale Securities, Gross Unrealized Gains | 0 us-gaap_AvailableForSaleSecuritiesGrossUnrealizedGains / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel2Member / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_AssetBackedSecuritiesMember / us-gaap_StatementBusinessSegmentsAxis = sci_FuneralMember | 0 us-gaap_AvailableForSaleSecuritiesGrossUnrealizedGains / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel2Member / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_AssetBackedSecuritiesMember / us-gaap_StatementBusinessSegmentsAxis = sci_FuneralMember
Available-for-sale Securities, Gross Unrealized Losses | 0 us-gaap_AvailableForSaleSecuritiesGrossUnrealizedLoss / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel2Member / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_AssetBackedSecuritiesMember / us-gaap_StatementBusinessSegmentsAxis = sci_FuneralMember | (10)us-gaap_AvailableForSaleSecuritiesGrossUnrealizedLoss / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel2Member / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_AssetBackedSecuritiesMember / us-gaap_StatementBusinessSegmentsAxis = sci_FuneralMember
Available-for-sale Securities, Fair Value | 6 sci_AvailableForSaleSecuritiesFairValue / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel2Member / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_AssetBackedSecuritiesMember / us-gaap_StatementBusinessSegmentsAxis = sci_FuneralMember | 3,397 sci_AvailableForSaleSecuritiesFairValue / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel2Member / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_AssetBackedSecuritiesMember / us-gaap_StatementBusinessSegmentsAxis = sci_FuneralMember
Fair Value, Inputs, Level 2 [Member] | Preferred Stock securities [Member] |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Available-for-sale Securities, Amortized Cost Basis | 2,503 us-gaap_AvailableForSaleSecuritiesAmortizedCost / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel2Member / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = sci_PreferredStockSecuritiesMember / us-gaap_StatementBusinessSegmentsAxis = sci_FuneralMember | 30,485 us-gaap_AvailableForSaleSecuritiesAmortizedCost / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel2Member / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = sci_PreferredStockSecuritiesMember / us-gaap_StatementBusinessSegmentsAxis = sci_FuneralMember
Available-for-sale Securities, Gross Unrealized Gains | 113 us-gaap_AvailableForSaleSecuritiesGrossUnrealizedGains / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel2Member / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = sci_PreferredStockSecuritiesMember / us-gaap_StatementBusinessSegmentsAxis = sci_FuneralMember | 754 us-gaap_AvailableForSaleSecuritiesGrossUnrealizedGains / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel2Member / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = sci_PreferredStockSecuritiesMember / us-gaap_StatementBusinessSegmentsAxis = sci_FuneralMember
Available-for-sale Securities, Gross Unrealized Losses | (113)us-gaap_AvailableForSaleSecuritiesGrossUnrealizedLoss / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel2Member / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = sci_PreferredStockSecuritiesMember / us-gaap_StatementBusinessSegmentsAxis = sci_FuneralMember | (235)us-gaap_AvailableForSaleSecuritiesGrossUnrealizedLoss / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel2Member / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = sci_PreferredStockSecuritiesMember / us-gaap_StatementBusinessSegmentsAxis = sci_FuneralMember
Available-for-sale Securities, Fair Value | 2,503 sci_AvailableForSaleSecuritiesFairValue / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel2Member / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = sci_PreferredStockSecuritiesMember / us-gaap_StatementBusinessSegmentsAxis = sci_FuneralMember | 31,004 sci_AvailableForSaleSecuritiesFairValue / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel2Member / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = sci_PreferredStockSecuritiesMember / us-gaap_StatementBusinessSegmentsAxis = sci_FuneralMember
Fair Value, Inputs, Level 1 [Member] | US Common Stock Securities [Member] |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Available-for-sale Securities, Amortized Cost Basis | 377,441 us-gaap_AvailableForSaleSecuritiesAmortizedCost / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel1Member / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = sci_UsCommonStockSecuritiesMember / us-gaap_StatementBusinessSegmentsAxis = sci_FuneralMember | 370,123 us-gaap_AvailableForSaleSecuritiesAmortizedCost / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel1Member / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = sci_UsCommonStockSecuritiesMember / us-gaap_StatementBusinessSegmentsAxis = sci_FuneralMember
Available-for-sale Securities, Gross Unrealized Gains | 18,533 us-gaap_AvailableForSaleSecuritiesGrossUnrealizedGains / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel1Member / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = sci_UsCommonStockSecuritiesMember / us-gaap_StatementBusinessSegmentsAxis = sci_FuneralMember | 77,963 us-gaap_AvailableForSaleSecuritiesGrossUnrealizedGains / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel1Member / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = sci_UsCommonStockSecuritiesMember / us-gaap_StatementBusinessSegmentsAxis = sci_FuneralMember
Available-for-sale Securities, Gross Unrealized Losses | (7,405)us-gaap_AvailableForSaleSecuritiesGrossUnrealizedLoss / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel1Member / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = sci_UsCommonStockSecuritiesMember / us-gaap_StatementBusinessSegmentsAxis = sci_FuneralMember | (2,928)us-gaap_AvailableForSaleSecuritiesGrossUnrealizedLoss / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel1Member / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = sci_UsCommonStockSecuritiesMember / us-gaap_StatementBusinessSegmentsAxis = sci_FuneralMember
Available-for-sale Securities, Fair Value | 388,569 sci_AvailableForSaleSecuritiesFairValue / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel1Member / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = sci_UsCommonStockSecuritiesMember / us-gaap_StatementBusinessSegmentsAxis = sci_FuneralMember | 445,158 sci_AvailableForSaleSecuritiesFairValue / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel1Member / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = sci_UsCommonStockSecuritiesMember / us-gaap_StatementBusinessSegmentsAxis = sci_FuneralMember
Fair Value, Inputs, Level 1 [Member] | Canada Common Stock Securities [Member] |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Available-for-sale Securities, Amortized Cost Basis | 14,708 us-gaap_AvailableForSaleSecuritiesAmortizedCost / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel1Member / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = sci_CanadaCommonStockSecuritiesMember / us-gaap_StatementBusinessSegmentsAxis = sci_FuneralMember | 27,710 us-gaap_AvailableForSaleSecuritiesAmortizedCost / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel1Member / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = sci_CanadaCommonStockSecuritiesMember / us-gaap_StatementBusinessSegmentsAxis = sci_FuneralMember
Available-for-sale Securities, Gross Unrealized Gains | 4,292 us-gaap_AvailableForSaleSecuritiesGrossUnrealizedGains / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel1Member / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = sci_CanadaCommonStockSecuritiesMember / us-gaap_StatementBusinessSegmentsAxis = sci_FuneralMember | 4,346 us-gaap_AvailableForSaleSecuritiesGrossUnrealizedGains / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel1Member / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = sci_CanadaCommonStockSecuritiesMember / us-gaap_StatementBusinessSegmentsAxis = sci_FuneralMember
Available-for-sale Securities, Gross Unrealized Losses | (895)us-gaap_AvailableForSaleSecuritiesGrossUnrealizedLoss / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel1Member / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = sci_CanadaCommonStockSecuritiesMember / us-gaap_StatementBusinessSegmentsAxis = sci_FuneralMember | (1,217)us-gaap_AvailableForSaleSecuritiesGrossUnrealizedLoss / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel1Member / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = sci_CanadaCommonStockSecuritiesMember / us-gaap_StatementBusinessSegmentsAxis = sci_FuneralMember
Available-for-sale Securities, Fair Value | 18,105 sci_AvailableForSaleSecuritiesFairValue / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel1Member / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = sci_CanadaCommonStockSecuritiesMember / us-gaap_StatementBusinessSegmentsAxis = sci_FuneralMember | 30,839 sci_AvailableForSaleSecuritiesFairValue / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel1Member / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = sci_CanadaCommonStockSecuritiesMember / us-gaap_StatementBusinessSegmentsAxis = sci_FuneralMember
Fair Value, Inputs, Level 1 [Member] | Other International Common Stock Securities [Member] |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Available-for-sale Securities, Amortized Cost Basis | 38,035 us-gaap_AvailableForSaleSecuritiesAmortizedCost / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel1Member / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = sci_OtherInternationalCommonStockSecuritiesMember / us-gaap_StatementBusinessSegmentsAxis = sci_FuneralMember | 36,017 us-gaap_AvailableForSaleSecuritiesAmortizedCost / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel1Member / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = sci_OtherInternationalCommonStockSecuritiesMember / us-gaap_StatementBusinessSegmentsAxis = sci_FuneralMember
Available-for-sale Securities, Gross Unrealized Gains | 1,175 us-gaap_AvailableForSaleSecuritiesGrossUnrealizedGains / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel1Member / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = sci_OtherInternationalCommonStockSecuritiesMember / us-gaap_StatementBusinessSegmentsAxis = sci_FuneralMember | 4,986 us-gaap_AvailableForSaleSecuritiesGrossUnrealizedGains / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel1Member / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = sci_OtherInternationalCommonStockSecuritiesMember / us-gaap_StatementBusinessSegmentsAxis = sci_FuneralMember
Available-for-sale Securities, Gross Unrealized Losses | (1,560)us-gaap_AvailableForSaleSecuritiesGrossUnrealizedLoss / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel1Member / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = sci_OtherInternationalCommonStockSecuritiesMember / us-gaap_StatementBusinessSegmentsAxis = sci_FuneralMember | (198)us-gaap_AvailableForSaleSecuritiesGrossUnrealizedLoss / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel1Member / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = sci_OtherInternationalCommonStockSecuritiesMember / us-gaap_StatementBusinessSegmentsAxis = sci_FuneralMember
Available-for-sale Securities, Fair Value | 37,650 sci_AvailableForSaleSecuritiesFairValue / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel1Member / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = sci_OtherInternationalCommonStockSecuritiesMember / us-gaap_StatementBusinessSegmentsAxis = sci_FuneralMember | 40,805 sci_AvailableForSaleSecuritiesFairValue / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel1Member / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = sci_OtherInternationalCommonStockSecuritiesMember / us-gaap_StatementBusinessSegmentsAxis = sci_FuneralMember
Fair Value, Inputs, Level 1 [Member] | Equity Funds [Member] |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Available-for-sale Securities, Amortized Cost Basis | 308,548 us-gaap_AvailableForSaleSecuritiesAmortizedCost / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel1Member / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_EquityFundsMember / us-gaap_StatementBusinessSegmentsAxis = sci_FuneralMember | 260,686 us-gaap_AvailableForSaleSecuritiesAmortizedCost / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel1Member / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_EquityFundsMember / us-gaap_StatementBusinessSegmentsAxis = sci_FuneralMember
Available-for-sale Securities, Gross Unrealized Gains | 3,332 us-gaap_AvailableForSaleSecuritiesGrossUnrealizedGains / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel1Member / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_EquityFundsMember / us-gaap_StatementBusinessSegmentsAxis = sci_FuneralMember | 22,530 us-gaap_AvailableForSaleSecuritiesGrossUnrealizedGains / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel1Member / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_EquityFundsMember / us-gaap_StatementBusinessSegmentsAxis = sci_FuneralMember
Available-for-sale Securities, Gross Unrealized Losses | (15,901)us-gaap_AvailableForSaleSecuritiesGrossUnrealizedLoss / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel1Member / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_EquityFundsMember / us-gaap_StatementBusinessSegmentsAxis = sci_FuneralMember | (2,303)us-gaap_AvailableForSaleSecuritiesGrossUnrealizedLoss / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel1Member / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_EquityFundsMember / us-gaap_StatementBusinessSegmentsAxis = sci_FuneralMember
Available-for-sale Securities, Fair Value | 295,979 sci_AvailableForSaleSecuritiesFairValue / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel1Member / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_EquityFundsMember / us-gaap_StatementBusinessSegmentsAxis = sci_FuneralMember | 280,913 sci_AvailableForSaleSecuritiesFairValue / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel1Member / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_EquityFundsMember / us-gaap_StatementBusinessSegmentsAxis = sci_FuneralMember
Fair Value, Inputs, Level 1 [Member] | Fixed Income Funds [Member] |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Available-for-sale Securities, Amortized Cost Basis | 229,414 us-gaap_AvailableForSaleSecuritiesAmortizedCost / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel1Member / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_FixedIncomeFundsMember / us-gaap_StatementBusinessSegmentsAxis = sci_FuneralMember | 317,280 us-gaap_AvailableForSaleSecuritiesAmortizedCost / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel1Member / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_FixedIncomeFundsMember / us-gaap_StatementBusinessSegmentsAxis = sci_FuneralMember
Available-for-sale Securities, Gross Unrealized Gains | 869 us-gaap_AvailableForSaleSecuritiesGrossUnrealizedGains / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel1Member / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_FixedIncomeFundsMember / us-gaap_StatementBusinessSegmentsAxis = sci_FuneralMember | 3,228 us-gaap_AvailableForSaleSecuritiesGrossUnrealizedGains / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel1Member / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_FixedIncomeFundsMember / us-gaap_StatementBusinessSegmentsAxis = sci_FuneralMember
Available-for-sale Securities, Gross Unrealized Losses | (3,576)us-gaap_AvailableForSaleSecuritiesGrossUnrealizedLoss / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel1Member / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_FixedIncomeFundsMember / us-gaap_StatementBusinessSegmentsAxis = sci_FuneralMember | (19,577)us-gaap_AvailableForSaleSecuritiesGrossUnrealizedLoss / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel1Member / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_FixedIncomeFundsMember / us-gaap_StatementBusinessSegmentsAxis = sci_FuneralMember
Available-for-sale Securities, Fair Value | 226,707 sci_AvailableForSaleSecuritiesFairValue / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel1Member / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_FixedIncomeFundsMember / us-gaap_StatementBusinessSegmentsAxis = sci_FuneralMember | 300,931 sci_AvailableForSaleSecuritiesFairValue / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel1Member / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_FixedIncomeFundsMember / us-gaap_StatementBusinessSegmentsAxis = sci_FuneralMember
Fair Value, Inputs, Level 3 [Member] | Private Equity Funds [Member] |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Available-for-sale Securities, Amortized Cost Basis | 35,094 us-gaap_AvailableForSaleSecuritiesAmortizedCost / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_PrivateEquityFundsMember / us-gaap_StatementBusinessSegmentsAxis = sci_FuneralMember | 32,909 us-gaap_AvailableForSaleSecuritiesAmortizedCost / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_PrivateEquityFundsMember / us-gaap_StatementBusinessSegmentsAxis = sci_FuneralMember
Available-for-sale Securities, Gross Unrealized Gains | 2,649 us-gaap_AvailableForSaleSecuritiesGrossUnrealizedGains / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_PrivateEquityFundsMember / us-gaap_StatementBusinessSegmentsAxis = sci_FuneralMember | 2,702 us-gaap_AvailableForSaleSecuritiesGrossUnrealizedGains / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_PrivateEquityFundsMember / us-gaap_StatementBusinessSegmentsAxis = sci_FuneralMember
Available-for-sale Securities, Gross Unrealized Losses | (9,418)us-gaap_AvailableForSaleSecuritiesGrossUnrealizedLoss / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_PrivateEquityFundsMember / us-gaap_StatementBusinessSegmentsAxis = sci_FuneralMember | (8,726)us-gaap_AvailableForSaleSecuritiesGrossUnrealizedLoss / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_PrivateEquityFundsMember / us-gaap_StatementBusinessSegmentsAxis = sci_FuneralMember
Available-for-sale Securities, Fair Value | 28,325 sci_AvailableForSaleSecuritiesFairValue / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_PrivateEquityFundsMember / us-gaap_StatementBusinessSegmentsAxis = sci_FuneralMember | 26,885 sci_AvailableForSaleSecuritiesFairValue / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_PrivateEquityFundsMember / us-gaap_StatementBusinessSegmentsAxis = sci_FuneralMember
Fair Value, Inputs, Level 3 [Member] | Other Investments [Member] |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Available-for-sale Securities, Amortized Cost Basis | 5,084 us-gaap_AvailableForSaleSecuritiesAmortizedCost / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_OtherInvestmentsMember / us-gaap_StatementBusinessSegmentsAxis = sci_FuneralMember | 1,550 us-gaap_AvailableForSaleSecuritiesAmortizedCost / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_OtherInvestmentsMember / us-gaap_StatementBusinessSegmentsAxis = sci_FuneralMember
Available-for-sale Securities, Gross Unrealized Gains | 726 us-gaap_AvailableForSaleSecuritiesGrossUnrealizedGains / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_OtherInvestmentsMember / us-gaap_StatementBusinessSegmentsAxis = sci_FuneralMember | 291 us-gaap_AvailableForSaleSecuritiesGrossUnrealizedGains / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_OtherInvestmentsMember / us-gaap_StatementBusinessSegmentsAxis = sci_FuneralMember
Available-for-sale Securities, Gross Unrealized Losses | (104)us-gaap_AvailableForSaleSecuritiesGrossUnrealizedLoss / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_OtherInvestmentsMember / us-gaap_StatementBusinessSegmentsAxis = sci_FuneralMember | (33)us-gaap_AvailableForSaleSecuritiesGrossUnrealizedLoss / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_OtherInvestmentsMember / us-gaap_StatementBusinessSegmentsAxis = sci_FuneralMember
Available-for-sale Securities, Fair Value | $ 5,706 sci_AvailableForSaleSecuritiesFairValue / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_OtherInvestmentsMember / us-gaap_StatementBusinessSegmentsAxis = sci_FuneralMember | $ 1,808 sci_AvailableForSaleSecuritiesFairValue / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_OtherInvestmentsMember / us-gaap_StatementBusinessSegmentsAxis = sci_FuneralMember

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