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Receivables from Preneed Trusts Receivables from Preneed Trusts (Composition of Assets Held in Trusts) (Details) - USD ($) $ in Thousands | Mar. 31, 2018 | Dec. 31, 2017
--- | --- | ---
Fair Value [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Assets held-in-trust | $ 16,260 | $ 15,782
Fair Value [Member] | Cash and cash equivalents [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Assets held-in-trust | 3,953 | 3,903
Fair Value [Member] | Fixed income investments [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Assets held-in-trust | 9,647 | 9,306
Fair Value [Member] | Mutual funds and common stocks [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Assets held-in-trust | 2,654 | 2,567
Fair Value [Member] | Annuities [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Assets held-in-trust | 6 | 6
Historical Cost Basis [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Assets held-in-trust | 16,291 | 15,759
Historical Cost Basis [Member] | Cash and cash equivalents [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Assets held-in-trust | 3,953 | 3,903
Historical Cost Basis [Member] | Fixed income investments [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Assets held-in-trust | 9,647 | 9,306
Historical Cost Basis [Member] | Mutual funds and common stocks [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Assets held-in-trust | 2,685 | 2,544
Historical Cost Basis [Member] | Annuities [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Assets held-in-trust | $ 6 | $ 6

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- Definition The total amount of cash and securities held by third party trustees pursuant to terms of debt instruments or other agreements as of the date of each statement of financial position presented, which can be used by the trustee only to pay the noncurrent portion of specified obligations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(b)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 + Details
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