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Preneed Activities Deferred Preneed Revenues [Roll Forward] (Details) - USD ($) $ in Thousands | 3 Months Ended |
--- | --- | ---
Mar. 31, 2018 | Mar. 31, 2017 | Dec. 31, 2017
Preneed Activities Deferred Preneed Revenues (Details) [Abstract] |  |  |
Deferred revenue and deferred receipts held in trust | $ 4,768,826 |  | $ 5,265,206
Accounting Changes [Text Block] | 37991 |  |
Net Preneed Deferred Sales | $ 244,091 |  |
Deferred Revenue Acquisitions (dispositions) of businesses, net | 40,332 |  |
Deferred Investment Earnings, Net | (46,918) |  |
Recognized deferred preneed revenues | (115,202) |  |
Recognized deferred revenues, current period sales | (105,256) |  |
Change in amounts due for unfulfilled performance obligations | (606,888) | $ 0 |
Deferred Revenue Change in Cancellation Allowance | 61,987 |  |
Effect of foreign currency and other on deferred revenue | $ (6,517) |  |

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- Definition Change in amounts due for unfulfilled performance obligations + References No definition available. + Details
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- Definition This item represents investment income derived from investments in debt and equity securities consisting of interest income earned from investments in debt securities and on cash and cash equivalents, dividend income from investments in equity securities, and income or expense derived from the amortization of investment related discounts or premiums, respectively, net of related investment expenses. This item also includes realized or unrealized gains or losses on the sale or holding of investments in debt and equity securities. This income is deferred until revenue is recognized on the underlying preneed contracts to which it relates. + References No definition available. + Details
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- Definition Impact of acquisitions (dispositions) of businesses, net on deferred revenue + References No definition available. + Details
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- Definition Deferred Revenue Change in Cancellation Allowance + References No definition available. + Details
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- Definition Deferred revenue and deferred receipts held in trust + References No definition available. + Details
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Balance Type: | debit
Period Type: | instant

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- Definition Effect of foreign currency and other on deferred revenue + References No definition available. + Details
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Namespace Prefix: | sci_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
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- Definition Preneed Deferred Sales, Net of Refunds + References No definition available. + Details
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- Definition Preneed Activities Deferred Preneed Revenues (Details) [Abstract] + References No definition available. + Details
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- Definition Recognized deferred preneed revenues + References No definition available. + Details
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- Definition Recognized deferred revenues, current period sales + References No definition available. + Details
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- Definition The entire disclosure for reporting accounting changes, excludes error corrections information. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 250 -URI http://asc.fasb.org/topic&trid=2122394 + Details
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