Preneed Trust Investments (Estimated maturities of fixed preneed cemetery trust income securities) (Details) - Preneed Cemetery Trust Investments [Member] $ in Thousands	Sep. 30, 2017 USD ($)
Schedule of Trading Securities and Other Trading Assets [Line Items]
Due in one year or less	$ 15
Due in one to five years	2,718
Due in five to ten years	5,751
Thereafter	33,879
Total	$ 42,363