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Preneed Trust Investments (Cost and fair market values associated with preneed funeral trust investments) (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Preneed Cemetery Trust Investments [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Cost	$ 71,141	$ 71,306
Unrealized Gains	5,829	7,535
Unrealized Losses	(5,113)	(3,549)
Fair Market Value	71,857	75,292
Preneed cemetery trust investments	$ 72,413	$ 75,992
Fair market value as a percentage of cost	101.00%	105.60%
Preneed Cemetery Trust Investments [Member] | Mortgage Backed Securities [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Cost		$ 1,018
Unrealized Gains		249
Unrealized Losses		(24)
Fair Market Value		1,243
Preneed Cemetery Trust Investments [Member] | Accrued Investment Income [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Cost	$ 556	700
Fair Market Value	556	700
Preneed Funeral Trust Investments [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Cost	92,806	88,638
Unrealized Gains	5,748	7,574
Unrealized Losses	(5,126)	(3,610)
Fair Market Value	93,428	92,602
Preneed cemetery trust investments	$ 93,987	$ 93,341
Fair market value as a percentage of cost	100.70%	104.50%
Preneed Funeral Trust Investments [Member] | Accrued Investment Income [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Cost	$ 559	$ 739
Fair Market Value	559	739
Fair Value, Inputs, Level 1 [Member] | Preneed Cemetery Trust Investments [Member] | Cash and Money Market Accounts [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Cost	6,997	3,132
Unrealized Gains	0	0
Unrealized Losses	0	0
Fair Market Value	6,997	3,132
Fair Value, Inputs, Level 1 [Member] | Preneed Cemetery Trust Investments [Member] | Common Stock [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Cost	28,100	26,465
Unrealized Gains	4,741	5,250
Unrealized Losses	(3,365)	(2,460)
Fair Market Value	29,476	29,255
Fair Value, Inputs, Level 1 [Member] | Preneed Funeral Trust Investments [Member] | Cash and Money Market Accounts [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Cost	23,912	14,349
Unrealized Gains	0	0
Unrealized Losses	0	0
Fair Market Value	23,912	14,349
Fair Value, Inputs, Level 1 [Member] | Preneed Funeral Trust Investments [Member] | U.S. Treasury Debt [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Cost	1,490	1,490
Unrealized Gains	6	10
Unrealized Losses	(28)	(15)
Fair Market Value	1,468	1,485
Fair Value, Inputs, Level 1 [Member] | Preneed Funeral Trust Investments [Member] | Common Stock [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Cost	27,604	26,129
Unrealized Gains	4,686	5,253
Unrealized Losses	(3,301)	(2,468)
Fair Market Value	28,989	28,914
Fair Value, Inputs, Level 2 [Member] | Preneed Cemetery Trust Investments [Member] | Foreign Government Debt Securities [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Cost	4,528	4,834
Unrealized Gains	127	292
Unrealized Losses	(247)	(193)
Fair Market Value	4,408	4,933
Fair Value, Inputs, Level 2 [Member] | Preneed Cemetery Trust Investments [Member] | Corporate Debt [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Cost	17,905	18,238
Unrealized Gains	559	1,184
Unrealized Losses	(856)	(273)
Fair Market Value	17,608	19,149
Fair Value, Inputs, Level 2 [Member] | Preneed Cemetery Trust Investments [Member] | Preferred Stock [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Cost	11,482	16,421
Unrealized Gains	57	510
Unrealized Losses	(572)	(588)
Fair Market Value	10,967	16,343
Fair Value, Inputs, Level 2 [Member] | Preneed Cemetery Trust Investments [Member] | Mortgage Backed Securities [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Cost	928
Unrealized Gains	328
Unrealized Losses	(14)
Fair Market Value	1,242
Fair Value, Inputs, Level 2 [Member] | Preneed Cemetery Trust Investments [Member] | Fixed Income [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Cost	1,201	1,198
Unrealized Gains	17	50
Unrealized Losses	(59)	(11)
Fair Market Value	1,159	1,237
Fair Value, Inputs, Level 2 [Member] | Preneed Funeral Trust Investments [Member] | Foreign Government Debt Securities [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Cost	4,515	4,870
Unrealized Gains	129	298
Unrealized Losses	(243)	(189)
Fair Market Value	4,401	4,979
Fair Value, Inputs, Level 2 [Member] | Preneed Funeral Trust Investments [Member] | Corporate Debt [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Cost	18,110	18,963
Unrealized Gains	520	1,197
Unrealized Losses	(874)	(278)
Fair Market Value	17,756	19,882
Fair Value, Inputs, Level 2 [Member] | Preneed Funeral Trust Investments [Member] | Preferred Stock [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Cost	11,549	16,335
Unrealized Gains	49	501
Unrealized Losses	(575)	(585)
Fair Market Value	11,023	16,251
Fair Value, Inputs, Level 2 [Member] | Preneed Funeral Trust Investments [Member] | Mortgage Backed Securities [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Cost	1,061	1,187
Unrealized Gains	341	263
Unrealized Losses	(16)	(27)
Fair Market Value	1,386	1,423
Fair Value, Inputs, Level 2 [Member] | Preneed Funeral Trust Investments [Member] | Fixed Income [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Cost	1,525	1,974
Unrealized Gains	17	52
Unrealized Losses	(89)	(48)
Fair Market Value	1,453	1,978
Fair Value, Inputs, Level 2 [Member] | Preneed Funeral Trust Investments [Member] | Other Investments [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Cost	3,040	3,341
Unrealized Gains	0	0
Unrealized Losses	0	0
Fair Market Value	$ 3,040	$ 3,341

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