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Preneed Funeral Activities Investment Related Activities (Details) (Funeral [Member], USD $) In Thousands, unless otherwise specified | 12 Months Ended
--- | ---
Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012
Funeral [Member] |  |  |
Investment related activities [Line Items] |  |  |
Deposits to trust | $ 102,553 sci_DepositsToTrust / us-gaap_StatementBusinessSegmentsAxis = sci_FuneralMember | $ 82,168 sci_DepositsToTrust / us-gaap_StatementBusinessSegmentsAxis = sci_FuneralMember | $ 81,601 sci_DepositsToTrust / us-gaap_StatementBusinessSegmentsAxis = sci_FuneralMember
Withdrawals | 131,352 sci_WithdrawalsFromTrust / us-gaap_StatementBusinessSegmentsAxis = sci_FuneralMember | 125,914 sci_WithdrawalsFromTrust / us-gaap_StatementBusinessSegmentsAxis = sci_FuneralMember | 100,635 sci_WithdrawalsFromTrust / us-gaap_StatementBusinessSegmentsAxis = sci_FuneralMember
Purchases of available-for-sale securities | 1,238,257 us-gaap_PaymentsToAcquireAvailableForSaleSecurities / us-gaap_StatementBusinessSegmentsAxis = sci_FuneralMember | 393,169 us-gaap_PaymentsToAcquireAvailableForSaleSecurities / us-gaap_StatementBusinessSegmentsAxis = sci_FuneralMember | 563,628 us-gaap_PaymentsToAcquireAvailableForSaleSecurities / us-gaap_StatementBusinessSegmentsAxis = sci_FuneralMember
Sales of available-for-sale securities | 1,318,512 us-gaap_ProceedsFromSaleOfAvailableForSaleSecurities / us-gaap_StatementBusinessSegmentsAxis = sci_FuneralMember | 435,267 us-gaap_ProceedsFromSaleOfAvailableForSaleSecurities / us-gaap_StatementBusinessSegmentsAxis = sci_FuneralMember | 555,709 us-gaap_ProceedsFromSaleOfAvailableForSaleSecurities / us-gaap_StatementBusinessSegmentsAxis = sci_FuneralMember
Realized gains from sales of available-for-sale securities | 168,567 us-gaap_AvailableForSaleSecuritiesGrossRealizedGains / us-gaap_StatementBusinessSegmentsAxis = sci_FuneralMember | 65,011 us-gaap_AvailableForSaleSecuritiesGrossRealizedGains / us-gaap_StatementBusinessSegmentsAxis = sci_FuneralMember | 60,833 us-gaap_AvailableForSaleSecuritiesGrossRealizedGains / us-gaap_StatementBusinessSegmentsAxis = sci_FuneralMember
Realized losses from sales of available-for-sale securities | $ (113,748)us-gaap_AvailableForSaleSecuritiesGrossRealizedLosses / us-gaap_StatementBusinessSegmentsAxis = sci_FuneralMember | $ (9,732)us-gaap_AvailableForSaleSecuritiesGrossRealizedLosses / us-gaap_StatementBusinessSegmentsAxis = sci_FuneralMember | $ (21,454)us-gaap_AvailableForSaleSecuritiesGrossRealizedLosses / us-gaap_StatementBusinessSegmentsAxis = sci_FuneralMember

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- Definition Amounts deposited to trust during the period. + References No definition available. + Details
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- Details
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- Definition Amounts withdrawn from trust during the period. + References No definition available. + Details
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- Definition This item represents the gross profit realized on the sale of debt or equity securities categorized neither as held-to-maturity nor trading securities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 9 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27357-111563 + Details
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- Definition This item represents the gross loss realized on the sale of debt or equity securities categorized neither as held-to-maturity nor trading securities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 9 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27357-111563 + Details
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- Definition The cash outflow to acquire debt and equity securities not classified as either held-to-maturity securities or trading securities which would be classified as available-for-sale securities and reported at fair value, with unrealized gains and losses excluded from earnings and reported in a separate component of shareholders' equity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Investing Activities -URI http://asc.fasb.org/extlink&oid=6516133 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=6871852&loc=d3e26853-111562 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (a),(b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3213-108585 + Details
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- Definition The cash inflow associated with the sale of debt and equity securities classified as available-for-sale securities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Investing Activities -URI http://asc.fasb.org/extlink&oid=6516133 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=6871852&loc=d3e26853-111562 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -Subparagraph (a),(b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3179-108585 + Details
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